dvd portatil daewoo dpc 7900
DESCRIPTION
Service manualTRANSCRIPT
Portable DVD
NOV. 2006
DPC-7900 Series
OSDPC79001
Revision Record
Date Rev No Section Description
17/ Dec./ 2005 0.1 New edition
Design and specifications are subject to change without notice.
All trademarks used in the specifications are the property of their respective owners.
1. General Descriptions …………………………………………………
1.1. Model Features …………………………………………………………
1.2. Information …………………………………………………………………
2. Electrical Characteristics ……………………………………………
2.1. Optical Characteristics ………………………………………………………
2.2. Electrical Characteristics ………………………………………………
2.3. System Block Diagram ……………………………………………………
3. Power………………………………………………………………………
3.1. Power Supply ……………………………………………………………….
3.2. Rechargeable Battery. ……………………………………………………….
4. Dimension & Physical Characteristics ………………………….
4.1. Outline Dimension …………………………………………………
4.2. Physical Characteristics …………………………………………………..
4.3. Exploded View ………………………………………………………………
5. Regulatory Standards ……………………………………………
5.1. Safety ………………………………………………………………………..
5.2. EMI ……………………………………………………………………………….
5.3. Ergonomics …………………………………………………………………
6. Service Tools and Equipment …………………………………
6.1. Service Tools and Equipment . ………………………………………
6.2. Storing and Handling Test Discs ……………………………………
6.3. Notes ………………………………………………………………………
7. Spare Parts …………………………………………………………
7.1. key Parts List ……………………………………………………………
8. Trouble shooting …………………………………………………………
8.1. Error Code Table……………………………………………………
8.2. Debug & Trouble Shooting ……………………………………………
1
1
2
3
3
3
4
11
11
11
13
13
13
14
19
19
19
19
20
20
20
21
23
23
24
24
25
2.4. Schematic Circuit Diagram ………………………………………… 5
- 1 -
1 General Descriptions
1.1 Model Features
Video: DVD Playback, MPEG4(option) ,DivX(DivX Model),Kodak Picture CD compatible
& JPEG readable
Audio: CD, CD-R, CD-RW, MP3, WMA Playback
Firmware Upgradable
Dolby Digital Output
7" active-matrix TFT screen, 16:9 wide aspect ratio
Composite Video Output
Ultra dimension & light weight: 205mm(L) x 163.5mm(W) x 38mm(H) / 900g (around)
Slim size wireless remote control
Rechargeable battery pack
12-volt car cigarette lighter cable
Universal AC/DC power adapter
Audio/video cable for TV connection
Built-in stereo speakers
Two Stereo headphone jack
Parental Lock
- 15 -
Anti Shock Protection
- 2 -
1.2 Information
Disk Format DVD, VCD, CD, MP3, CD-R, CD-RW, MPEG4 (OPTION),JPEG,
Kodak Picture CD, DivX(DivX Model),WMA
Video System NTSC / PAL/Auto
Video Decompression MPEG-2 (ISO/IEC-13818), MPEG-1
Video Output 800~1200mVpp/75 ohm
Audio Characteristic 2-Channel Analog
Analog Output 1.0~2.0Vrms/10K ohmFrequency Response DVD: 48kHz Sampling: 20Hz-20kHz
CD: 20Hz-20kHz
S/N Ratio <= -65dB
Dynamic Range <= -85dB
Audio Output Noise &Distortion Less than<= 0.01%
Digital Output SPDIF
Headphone Jack 32ohm (30Mw) > 8ohm
LCD Display 7” active-matrix TFT type
Audio / Video Section Audio input/output x1 Video input/output x1 S-Video / Coaxial output x1
Audio Section Digital Output: Coaxial x1
Headphone Jack Headphone Jack x1
Line Voltage AC 100~240 VAC ± 10%(50/60Hz), (Adapter)
Power Consumption 12W (DC 12V, 1.0A)
Remote Control DC 3V Infra-red
Dimensions 205mm(L) x 163.5mm(W) x 38mm(H)
Weight 900 g (around)
Accessories Slim Size Remote Controller with 3V Battery 12-volt Car Cigarette Lighter Cable Universal AC/DC Power Adapter Audio Cable / Video Cable Ni-MH Rechargeable Battery Pack S-video / Coaxial cable
- 3 -
2 Electrical Characteristics
2.1 Optical Characteristics
Parameter Specifications Unit Screen Size 7.0 (16:9 diagonal) inch
Display Format 1400 (H) 234 (V) dot
Active Area 154.08 (H) 86.08 (V) mm
Dot Pitch 0.107 (H) 0.370 (V) mm
Pixel Configuration Stripe
Outline Dimension 166.0 (W) 100.0 (H) 7.2 (D)(typ.) mm
Surface Treatment Anti-Glare and Hard Coating
Weight 180 ± 10 g
2.2 Electrical Characteristics
DVD/ SVCD/ VCD/ CD system decoding, packeted element streams and audio, video element streams.
Fully digital servo processing (focusing, tracking, sledge and spindle servo control)
Fully digital calibration (focusing/ tracking offset and balance)
Digital phase lock loop with phase equalizer
Support Audio/ Video/ Photograph decoding and programming
Programmable Y/C delay relationship
Embedded micro-controller, up to 50MHz operating frequency
1.8V and 3.3V dual power supply, 208 pin PQFP
- 4 -
2.3 System Block Diagram
2.3.1. The System Block Diagram & the Block's Function Description
DC To DC MP1580
1. Loader DM-520A
2. Servo +MPEG MT1389D/MT1389C
DISPLAY 7” TFT LCD PW070XU3
INVERTER
TFT LCD Driver IR3Y29B +HX8806
- 5 -
2.4 Schematic Circuit Diagram
( 1 ) P O W E R _ M P S
1
DELETA
9VIN
+3.3V +5V
NC
TR_5V
CTR
_5V
LDO
_AV
33
RFV
33
NC
TR_5V
9VIN
+5V
+3.3V
CTR
_5V
NC
TR_5V
+3.3V
RFV
33
+3.3V
LDO
_AV
33
RM
439K
QM
1O
PE
N/3904
1
2 3
UM
1
MP
S1580
1234
8765
BSVinVswG
ND
SyncEN
Com
pFB
CM
7220uF/6.3V
/LU
D1
LED
1
1
3
2
C135
22uF
C410uF
UM
2
MP
S1580
1234
8765
BSVinVswG
ND
SyncEN
Com
pFB
LM4
6.8uH
RM
7O
PEN
R1330O
+C
120220uF/6.3V
/lu
RM
330.9K
RM
12O
PE
N/10K
CB
590.1uF
RM
114.7K/open
+C
121220uF/6.3V
/lu
L26
FB
RM
110K
1%
R156
4.7k/open
CB
600.1uF
RM
1010K
RM
816.9K
L27
FB
RM
9O
PEN
RM
233R
Q1
39041
2 3
CM
30.022uF
CM
1
0.01uF
CM
5100pF
CM
10100pF C
M9
0.022uF
CM
8
0.01uF
RM
610K
1%
LM2
6.8uH
RM
510K
C136
22uF
C11910uF
DM
1
DIO
DE
1 2
CM
2
100uF/10V/LU
DM
2
DIO
DE
1 2
LM122uH
LM322uH
R2
330O
- 6 -
(2) POWER FOR TFT
1 1
1
11
11
-10V_TFT
+15V_TFT
+7.5V_TFT
VSYNC
#
PO
WD
ET_M
CU
+3.3V_TFT
+5V_TFT
+5V_TRAN
VIN
+3.3V
+5VV
18
+3.3V_TFT
+5V_TRAN
9VIN
VOU
T
9VIN
CTR
_LOAD
CTR
_AUD
IO
PO
WD
ET_M
PE
G
CTR
_TFT5V
PO
WD
ET_M
CU
+5V_TRAN
HSYN
C#
VCC
+5V_TFT
+7.5V_TFT
+3.3V_TFT
-10V_TFT
VCC
+15V_TFT
+3.3V
V18
+3.3V
+5V
9VIN
PO
WD
ET_M
CU
PO
WD
ET_M
PE
G
CTR
_LOAD
CTR
_AUD
IO
PO
WD
ET_M
CU
PO
WD
ET_M
PE
G
CTR
_TFT5V
+5V_TRAN
CTR
_TFT5V
+3.3V+5V
+7.5V_TFT
+5V_TRAN
-10V_TFT
+15V_TFT
+3.3V
+3.3V
+3.3V
+C
1347uF/25V
/LU
C15
0.1uF
C118
0.1uF
+ -
U3A
LM393
3 21
84
C7
100uF/10V/LU
R3
10k(8.2K)
R8
0(1.8K)
R9
3.9K
L220uH
Q2
BS
H1051
32
C1
100uF/6.3V/LU
R15
1.6M
U1
RT9167A
-185CS
1 234
5678
SHD
N-
INO
UT
BP
GNDGNDGNDGND
R6
3.3K
R18
560K
C18
0.1uF
+ -
U3B
LM393
5 67
84
C17
1000pF
D4
1N5819
12
L120uH
Q18
OP
EN
/39041
2 3
C2
0.1uF
C11
22uF/25V/LU
J1
PO
WE
RJA
CK 132
C50.01uF
R11
20K
R158
330O
C10
47uF/25V/LU
CO
N1
BATTERY 21 3 4
VING
ND
OU
TPD
ET
R5
3K
+C
947uF/25V
/LU
U6
BA
05SFP
45
3
21
6 VOU
T
NC
GND
VIN
CTL
GND
R7
3K
+C
16100uF/16V
/LU
R157
OP
EN
/10K
D2
RB
053L-30
12
R159
4.7K/open
R13
20K
R160
4.7k/open
C3
47uF/25V/LU
D3
1N5819
12
C6
100uF/6.3V/LU
R12
220R
C12
0.1uF
U22
RT9262
1
2
3 4
5
6
7
8
GND EXT
LFB
LDO
O
FB
VDD
LX
CE
R4
47K
U5
TER
9.5*100M
1
3
6
57
8
1
3
6
57
8
R16
0R
R10
47K
R14
1M
R17
200K
D5
1N5819
12
C14
0.1uF
1
1
1
1
Tr-
10
VR GND
GND
C
C8911
BGND
RS
-232
324 619 5
PD
17
VccV1.7
18
B
C
15
Vs(Vc)
LD(DVD)
HOP1200/1200N(1240)
D
16
A
1
14 1
GND(NC)
2
VR F
720
E
12
Vcc
21Fo+
Very Im
portant tored
uce N
oise
22
2SB1132
VRF(1.4V)
23Tr+
HITACHIHOP1200/1200N(1240)
C15 closed to Pin186
PD(Monitor)
LD(CD)
E413
2
Fo-
3
AUDIO INTERFACE
MEMORY
FLASHIIC
VIDEO INTERFACE
DQ
M[0..1]
A[0..21]A
D[0..7]
BA
[0..1]D
Q[0..15]
AS
DA
T[0..2]
Y[3..6]
MA[0..11]
DM
O
V1P
4
XO
XI
DC
KE
CS
#SC
L FS0
PR
D#
SD
A
ASPDIF
AL PC
E#
ALR
CK
PWR
#
UR
ST#
AB
CK
CA
S#
CTR
_TFT5V
VS
CK
VS
DA
PWR
#
MU
TE_D
AC
PC
E#
WE
#
DC
LK
AC
LK
AR
RA
S#
VSYNC
#H
SYNC
#
FMO
D
FOO
TRIN
XO
C
ADIN
B
LIMIT
DM
SO
XI
STB
Y
TRO
V1P4
DM
SO
TRO
UT
AC
DQ
0
AR
DACVDD3
JITFN
DQ
14
OP
O
BA
0
TRSO
MA
1
V20
V18
V1P
4
LDO
2
A4
Y4
TEZISLV
FMO
TRO
PEN
T+
DM
O
JITFN
A17
RFVDD3
DQ
15
DQ
13
VSTB
AD5
SL-
SDA
A15
TEO
SU
BD
V1P
4
RFVDD3
FMS
O
LD-C
D
A
LD-D
VD
A5
XTA
LI
DQ
6
RXD
A10
A1
A13
AD3
DQ
10
MUTE_DAC
B
V1P
4
A7
A16
MD
I1
RFO
PLLVDD3
A2
FS
MA
5
VSDA
UWR#
DQ
11
SCL
MA
4
AV
CC
1
DACVDD3
APLLVDD3
AD4
OP
+
JITFO
MA
3
SL-
V1P
4
ASDAT2
SU
BC
Y5
DQ
3
DQ
9
CA
S#
TXD
MD
I2
OP
-
Y3
AD1
LDO
1
E
PLLV
DD
3
RFV
DD
3
DQ
7
A21
SL+
SP
-
ALR
CK
MA
10
MA
9
RFO
N
PRD#
MD
I2
E
HSYN
C#
IR
AL
FS0
DQ
4
FMS
O
RFV
18
AP
LLVD
D3
V20
LDO
1
V20
RxD
B
VSYNC
#
Y6
F+
A
ASDAT1
V18
MA
6
RFO
P
MA
8
AD6
A12
F-
AV
CC
1
STB
Y
RESET#
TRSO
CS
#
SU
BA
SP
-
DQ
2
BA
1
AD7
A11
A9
RFV
DD
3
DQ
8
VSCK
ALE
PWR#
V2P
8
SP
+
OP
O
RGB_SWITCH
ADIN
F
FOS
O
FOO
SL+
TRO
DQ
1
FOS
O
LIMIT
DC
LK
D
AC
LK
INT0#
RFVDD3
RFO
DQ
5
URST#
URD#
V2P
8
A6 O
P+
V1P
4
FEO
ASPDIF
A14
V1P
4
DACVDD3
ADACVDD3
DC
KE
AD
AC
VD
D3
A19
XTALI
MA
11
VR
EF
A18
MA
2
ASDAT0
SP
+
F
A8
AD0
A3
SU
BB
RFV18
DQ
M1
MA
7
A20
DQ
M0
TRCLOSE
OP
-
DQ
12
WE
#
MA
0
T-
ALRCK
RA
S#
AD2
PCE#
ICE
AB
CK
A0
D
LDO
2
TxD
C
JITFO
MD
I1
RFV
33
TRIN
TRC
LOSE
TRO
UT
CTR
_5VTR
OPEN
INT/EXT
INT/EXT
IR
AC
LK
AS
DA
TA3
MC
_DATA
AS
DA
TA2
RESET#
GN
D
AB
CK
AS
DA
TA2
VS
CK
VSTBV
SD
A
LDO
_AV
33
RFV
33+3.3V
DV
33
+3.3V
DA
CV
DD
3
GN
D
GN
D
VS
DA
AC
LK[5]
PWR
#[3]
UR
ST#[1]
PC
E#
[3]
CA
S#
[3]
MA[0..11]
[3]
FS0
[4]
AB
CK
[5]
CTR
_TFT5V[5]
A[0..21][3]
MU
TE_D
AC
[5]
PWR
#[3]
SD
A[3]
AD
[0..7][3]
BA
[0..1][3]
DQ
M[0..1]
[3]
ALR
CK
[5]
PR
D#
[3]
AR
[5]
PC
E#
[3]
DC
LK[3]
WE
#[3]
Y[3..6][ 5 ]
ASPDIF
[4]
CS
#[3]
RA
S#
[3]
DC
KE
[3]
VS
CK
AL
[5]
AS
DA
T[0..2][5]
SC
L[3]
AV
CC
[1 ]
DQ
[0..15][3]
HSYN
C#
[ 4 ]VSYN
C#
[ 4 ]
INT/EXT
[5]
VC
CM
O_V
CC
LDO
_AV
33
DV
33
+3.3V
RFV
33
V18
MO
_VC
C
V18
AD
AC
VD
D3
MO
_VC
C
V18
V18
V18
AV
CC
+3.3V
VC
C
RFV
33
LDO
_AV
33
V33
DV
33
DV
33
DV
33
+3.3V
DV
33
DV
33
DV
33
+3.3V
DV
33
AV
CC
VC
C
TP6
TP23
TP12
C77 0.1uF
L34FB
C82 0.47uF/N.C
C105C
TP15
R200
33k
L41
FB
CB
86
0.1uF
TP43
TP32
C100
1uF
+C
E56
47uF/16v
TP13
R197
4.7
R190
10k
C8
+c88=17nf0603C
+C
19
47uF
L51
FB
CB
90
0.1uF
TP39
TP16
C114
1000p
CB
75
0.1uF
L52
FB
+C
E46
10uF/25v
R191
1k0603R
R194
0
+C
E49
1000uF/10v
CB
79
0.1uF
CB
1070.1uF
CB
88
0.1uF
CB
1080.1uF
C98
1uFC
971uF
R202
10k
TP33
+C
E78
220uF/16V
TP31
C841000pF
R178 0
CB
83
0.1uF
+C
E77
220uF/16V
R181
1
L422.7u, D
IP
TP30
C75
0.01uF
CB
92
0.1uF
TP44
C72
2200pF
CB
74
0.1uF
R173
150k
R196
10
R182
2K
TP9
CB
70
0.1uF
TP5
+C
E54
100uF/16v
TP19
R215
10k
C940.1uF
C81
1500pF0603C
R199
33k
R172
150kTP8
TP3
+
CE
5547uF/16v
+C
E52
47uF/16v
TP14
C110
0.015uF
+C
E1
+ce49=1000uf
R218
100k
TP47
CB
73
0.1uF
R28
4.7K
CO
N2
CO
NTR
OLBO
RD
,11P,PITCH
=1.5MM
1234567891011
1234567891011
TP40
Y1C
27MH
z1
2
+
C79
10uF/25v
TP52
TP18
C104
0.1uF
L50
FB
TP37
R177
R
D6
1N4148
1 2
R23
100k
TP29
R179 0
C71
390pF
R192
R
R204
1
C112
150pF
+C
E53
47uF/16v
TP45
R183
4.7k
R210
10k
TP38
R193
R
C109
0.1uF
CB
85
0.1uF
U38
BA
5954
1 9 10 1232
15
7 1413
21 19202427
64 5
28
8 111718 1623 222526
2930
VINFC
PV
CC
1PG
ND
VO
SL+
CF2
CF1
VO
TK+
VN
FFC
VO
FC+
VO
FC-
PV
CC
2
PGN
DVN
FTK
CTK
2
BIAS
VO
SL
VINSL+
VINSL-
STB
Y
VC
C
VO
SL-
VO
LD+
VO
LD-
VO
TK-
VINLD
PREG
ND
CTK
1VIN
TK
G1
G2
CB
89
0.1uF
R211
20k
C73
0.1uF/N.C
C101
1uF
R174
680k
TP27
R22
39k
CB
200
0.1uF
TP21
R212
20k
R203
1
R210
CB
76
0.1uF
TP42
+C
E47
10uF/25v
CB
81
0.1uF
IR1321
C102
C
Q262S
B1132
1
32
R168
680k
R187
0
+C
E16
100uF/6.3V/LU
C108
330pF
CB
77
0.1uF
TP17
CB
780.1uF
L37
FB
CB
93
0.1uF
C111
150pF
C33
100pF
R175 15k
TP1U
RST#
C90 0.033uF
L3610uH3216
L39
10uH
TP2
CB
82
0.1uF
CB
72
0.1uF
R195
10
R206
1
C95
0.1uF
R220
0
U20A
74HC
04
12
147
L38FB
CB
87
0.1uF
L40
10uHR
1984.7
CB
95
0.1uF
C99
1uF
C91 0.047uF
CB
91
0.1uF
R170 100k
TP4
C116
22p
R205
1
TP49
MT1389D
U17
MT1389D
UQ
216
2
210
345 1
212213
67891011121314151617181920212223
216
28 2730 2932 3143 26 253334353642 4145 394046 38 37
6564
6261605958
52
81
7776
55
74737271
63
83
5354
70
57
82
75
66
68
80
69
56
67
848586878889909192939495
106
9697
204205
9899100101102103104105
107108
162161160159158157156155154153152151150149148147146145144143142141140139
137138
136135134133132131130129128
126127
125124123122121120
118119
117116115114113
111112
110109
209
215
24
214
191190
198197
208207
196
211
206
203
201202
200199
194195
192
184185
182181180179
186
178177
175
173174
164
171170169168
172
167166165
163
193
444748495051
7879
176
183
188189
187
DV
DA
CRTPLP
DV
DB
DV
DC
DV
DD
AGN
D
OSPOSN
DVD
RFIP
DVD
RFIN
MA
MB
MC
MD
SA
SB
SC
SD
CD
FON
CD
FOP
TNI
TPI
MD
I1M
DI2
LDO
2LD
O1
AVDD3
V2R
EFO
SGN
D
VR
EFO
V20
TEO
FEO
FG/AD
IN1
RFLVL/R
FON
CSO
/RFO
P
TEZISLVO
P_OU
TO
P_INN
OP_IN
P
FOO
TRO
GPIO
1
TRO
PENPW
MPW
MO
UT1/AD
IN0
GPIO
2
FMO
DM
O
HIGHA4HIGHA5
HIGHA7DVDD3A16IOWR#DVDD3
IOA6
AD6
AD2AD1
IOA18
DVSSIOOE#IOA1DVSS
HIGHA6
ALE
IOA7
HIG
HA0
IOCS#
IOA19
IOA21
AD0
HIGHA3
HIGHA1
AD5
IOA20
DVSS
HIGHA2
DVDD18AD7A17DVDD3IOA0UWR#URD#UP1_2UP1_3GPIO6UP1_4UP1_5
IR
UP1_6DVSS
ADCVDD3ADCVSS
UP1_7UP3_0UP3_1UP3_4UP3_5GPIO7ICEPRST#
INT0#DVDD3
AC
LKA
BC
KD
VS
SG
PIO5
GPIO
4G
PIO3
DV
DD
18R
A4R
A5R
A6R
A7D
VD
D3
RA8
RA9
RA
11C
KE
RC
LKD
VS
SR
A3D
VS
SR
A2R
A1R
A0R
A10
BA
1D
VD
D3
BA
0R
CS
#R
AS
#D
VD
D18
CA
S#
RW
E#D
VS
SD
QM
1R
D8
RD
10R
D9
RD
11R
D12
DV
DD
3R
D13
RD
14D
VS
S
RD
0R
D15
RD
1R
D2
DV
SS
RD
3R
D4
RD
6R
D5
RD
7D
QM
0
HRFZC
IREF
SV
DD
3
RFGC
RFGND18ADACGND
IDACEXLPPLLVSS
RFRPACRFRPDC
JITFN
RFGND
RFVDD3
LPFOP
LPFIPLPFIN
LPFONPLLVDD3
XTALIJITFO
RFVDD18
APLLCAPAPLLVSS
RB
DACVSSAG
ADACVDD3
DACVDDADACVSSB
CVBS
FSDACVSSC
ASDATA0
DACVDDCSPDIF
MC_DATADVDD3
VREF
ASDATA3ASDATA2ASDATA1
ALRCK
XTALO
GPIO
0
IOA2
DV
DD
18IO
A3IO
A4IO
A5
AD3AD4
DACVDDB
APLLVDD3
VCMAL
AR
R201
15k
R188
0
+C
E100
220uF/16V
C93
0.1uF
C80
10uF/10v
R185
10k
TP25
+C
E58
47uF/16v
C103
1uF
TP41
C83
2200pF
R176
6.8
R169
0
R72
10K
CB
80
0.1uF
TP22
C7820pF
C106
0.1uF
TOP
HA1
HEAD
ER 24 SM
D0.5 TO
P
123456789101112131415161718192021222324
SW
1PU
SHBU
TTON
1 4
2 3
CB
71
0.1uF
R167
0
C87 0.1uF
C92 0.047uF
+C
E51
47uF/16v
R217
R
R19
0
U20B
74HC
04
34
147
TP51
L33
FBR
166750k
K1
POW
ERO
N/O
FF
231
J66x1 W/H
OU
SING
_180
123456
TP34
J8
4x1 W/H
OU
SING
1234
TP24
TP50
R155
10K
C107
330pF
C115
C
TP26
C74
0.1uF
C76
2200pF
TP11
SW
2
TFT_SWITC
H
1 4
2 3
TP35
R189
0
TP10
CB
84
0.1uF
R69
10K
C89 0.1uF
TP20
TP46
L4FB
+C
E48
100uF/16v
C88
16800PF
0603C
Q252S
B1132
1
3 2
R20
0
TP48
L3FB
C117
22p
TP28
R209
20k
- 7 -
(3) SERVO&MPEG
- 8 -
(4) SDRAM&FLASH&EEPROM
TSOP 48 pin
IIC DRAM
FLASH
16Mb
32Mb
8M 16M 32M FLASH
delete
DQ
[0..15]
AD
[0..7]
BA
[0..1]D
QM
[0..1]
MA
[0..11]
A[0..21]
A9 A3A
D3
A1A19
A4
AD
6
AD
1
A17
A16
A13
A14
AD
0A2A6A8A
18
AD
7A7
AD
5
A12
A15
A10
AD
2
AD
4
A11
A5
A0
RA
S#
PC
E#
CA
S#
PR
D#
DC
KE
SD
A DC
LK
SC
L
PW
R#
CS
#W
E#
DC
S#
DC
AS
#D
RA
S#
DW
E#
WE
#
RA
S#
CS
#
CA
S#
BA
0
DC
KE
BA
1
DC
LK
SD
CK
E
DB
A0
DB
A1
SD
CLK
A20
AA
20
PC
E#
PR
D#
PW
R# AA
20A
A21
SC
LS
DA
VC
C DV
33
DQ
9
MA7
MA3
MA9
DC
S#
DQ
0
DQ
12
MA8
MA4
MA0
DW
E#
DQ
11
DQ
M0
DQ
4
DQ
13
DB
A0
MA5
DQ
1
DC
AS
#
DQ
5M
A2D
Q6
DQ
8
DQ
14D
Q15
SD
CK
E
DQ
7
DQ
2
MA1
MA10
DQ
M1
DQ
3
SD
CLK
DR
AS
#
MA6
DQ
10DQ
0M
A6
DC
AS
#
DQ
5
SD
CLK
DQ
10
DR
AS
#
DB
A0
DW
E#
DQ
1
MA9
MA4
DB
A1
DQ
7M
A1M
A2
DQ
M0
DQ
M1
MA10
DQ
6
DQ
11
DQ
15
MA7
DC
S#
DQ
13
DQ
8
SD
CK
E
DQ
4
DQ
14
DQ
2D
Q3
MA3
MA5
MA0
DQ
9M
A8
MA11
DQ
12
AA
21A
21
DQ
6
SD
CK
E
DQ
1
DQ
15
DQ
9
DQ
M0
MA5
DB
A0
DQ
0
DQ
10
DQ
M1
DC
AS
#
DQ
11
DQ
8
MA4
DQ
14
MA8
DR
AS
#
DW
E#
DQ
3
DB
A1
DQ
7
GN
D
MA2
DQ
2
MA7
MA1
SD
33
MA3
DQ
13S
DC
LK
DQ
5
DQ
12
MA6
MA0
MA9
MA10
DQ
4
SD
A[ 2 ]
DQ
M[0..1]
[ 2 ]B
A[0..1]
[ 2 ]
WE
#[ 2 ]
PC
E#
[ 2 ]
CA
S#
[ 2 ]
AD
[0..7][ 2 ]
CS
#[ 2 ]
DC
KE
[ 2 ]
PR
D#
[ 2 ]
SC
L[ 2 ]
DC
LK[ 2 ]
PW
R#
[ 2 ]
MA
[0..11][ 2 ]
DQ
[0..15][ 2 ]
RA
S#
[ 2 ]
A[0..21]
[ 2 ]
VC
C[ 1 ]
GN
D[ 1,2,3,4,5 ]
DV
33[ 1 ]
SD
33
DV
33S
D33
SD
33
SD
33FLA
SH
_VC
C
FLAS
H_V
CC
FLAS
H_V
CC
SD
33
VC
C
FLAS
H_V
CC
DV
33
SD
33
SD
33
SD
33
SD
33
SD
33
SD
33
R68
680
CB
38
0.1uF
L23FB
CB
52
0.1uF
CB
42
0.1uF
R64
33
CB
45
0.1uF
L24N
O_U
SE
R66
33
CB
50
0.1uF
R254
680
U8ES
MT M
12L16161A-7 1 234 567 8910 11121314 15 16 17 18 19 20 21222324
25
26 27282930313233 34 353637
38 394041 424344 454647 4849
50
VC
C
DQ
0D
Q1
VS
SQ
DQ
2D
Q3
VC
CQ
DQ
4D
Q5
VS
SQ
DQ
6D
Q7
VC
CQ
DQ
ML
WE
CA
SR
AS
CS
BA
/A11
A10
A0
A1
A2
A3
VC
C
VS
S
A4
A5
A6
A7
A8
A9
NC
CK
EC
LK
DQ
MH
NC
VC
CQ
DQ
8D
Q9
VS
SQ
DQ
10D
Q11
VC
CQ
DQ
12D
Q13
VS
SQ
DQ
14D
Q15
VS
S
CB
54
0.1uF
CB
37
0.1uF
CB
41
0.1uF
U9ES
MT M
12L64164A/N.C
TSOP54
1 2412 579 81046 1113
15 16 17 18 19 35 22 23242526
14
41 29303132333436 37 383940
43 424452 454749 48505153
54 2021
36 27
28
VC
C
DQ
0D
Q1
VS
SQ
DQ
2D
Q3
VC
CQ
DQ
4D
Q5
VS
SQ
DQ
6D
Q7
DQ
ML
WE
CA
SR
AS
CS
A11
A10/A
P
A0
A1
A2
A3
VC
C
VS
S
A4
A5
A6
A7
A8
A9
NC
CK
EC
LK
DQ
MH
NC
VC
CQ
DQ
8D
Q9
VS
SQ
DQ
10D
Q11
VC
CQ
DQ
12D
Q13
DQ
14D
Q15
VS
S
BA
0/A13
BA
1/A12
VC
CQ
VS
SQ
VC
C
VS
S
R67
10k
CB
49
0.1uF
RN
1
33x4
12
34
56
78
+C
E23
220uF/16V
CB
48
0.1uF
R62
R
CB
36
0.1uF+
CE
22
220uF/16V
CB
40
0.1uF
U12
EE
PR
OM
24C16
SO
P-8
12345 6 7 8
NC
NC
NC
GN
DS
DA
SC
LW
PV
CC
CB
44
0.1uF
CB
53
0.1uF
CB
47
0.1uF
U7ES
MT M
12L16161A-7 1 234 567 8910 11121314 15 16 17 18 19 20 21222324
25
26 27282930313233 34 353637
38 394041 424344 454647 4849
50
VC
C
DQ
0D
Q1
VS
SQ
DQ
2D
Q3
VC
CQ
DQ
4D
Q5
VS
SQ
DQ
6D
Q7
VC
CQ
DQ
ML
WE
CA
SR
AS
CS
BA
/A11
A10
A0
A1
A2
A3
VC
C
VS
S
A4
A5
A6
A7
A8
A9
NC
CK
EC
LK
DQ
MH
NC
VC
CQ
DQ
8D
Q9
VS
SQ
DQ
10D
Q11
VC
CQ
DQ
12D
Q13
VS
SQ
DQ
14D
Q15
VS
S
L25FB
CB
51
0.1uF
CB
39
0.1uF
U11
STM
29W160/M
X29LV800(160)
252423222120191881028
4716
29313335
726
38404244303214 3639414345372711 9
3446
64 5321481712
A0
A1
A2
A3
A4
A5
A6
A7
A8
A20
OE
BY
TEA
18
D0
D1
D2
D3
A9
CE
D4
D5
D6
D7
D8
D9
WP
/AC
C
D11
D12
D13
D14
D15
VC
C
GN
D1
WE
A19
D10
GN
D2
A10
A12
A11
A13
A14
A15
A16
A17
RE
SE
T
R70
10k
CB
43
0.1uF
+C
E24
47uF/16V
CB
46
0.1uF
R65
33
R63
33
R61
R+
CE
25
47uF/16V
- 9 -
(5) VIDEO OUTPUT
1
1
TFT I/O
2N3904 3
C
E
2
B1
TFT_CVBS
-10V_TFT
9VIN
+3.3V_TFT
+7.5V_TFT
+15V_TFT
+5V_TFT
ASPDIF
Y[3..6]
CVBS_TFT
VIDEO
_TV
INT/EXT
P/N
ASPDIF
+5V_TRAN
TFT_OU
TTFT_C
VBS
SV
IDE
O_Y
SVIDEO
_C
SC
ALE
VIDEO
_TV
TFT_OU
T
CVBS_TFT
CVBS_O
UT
P/N
SC
ALE
+5V_TRAN
+5V_TFT
+5V
Y3
Y4 Y5
CVBS_O
UT
Y6
CVBS_O
UT
+15V_TFT
9VIN
+5V_TFT
-10V_TFT
+7.5V_TFT
+3.3V_TFT
ASPDIF
Y[3..6]
INT/EXT
P/NSC
ALE
TFT_OU
T
CVBS_TFT
CVBS_O
UT
+5V_TRAN
+5V_TFT
+5V
+5V
+5V
F2FB
C132
330pF
F1FB
C131
0.1uF
F4FB
F5FB
F6FB
F7FB
F8FB
F9FB
R154
100R
F11FB
F12FB
L221.8uH
L430
L181.8uH
R146
150R
C43
47pF
L451.8uH
R149
150R
C44
47pF
L440
J10
VIDEO
/CO
AXIAL
5 4 23 1
GN
DG
ND
VIDEO
CO
AXIAL
VIDEO
C129
OPEN
C46
270pF
C130
330pF-OP
EN
C45
270pF
F10FB
CO
N4
109874321 5 6 11 12
13
VIDEO
NTSC
/PAL
GN
D
-10V_TFT
+5V_TFT
+7.5V_TFT
+15V_TFT
HVG
ND
+3.3V
+9VP
OW
ER
VGN
D
MO
DE
SC
ALE
C51
47pF
R151
150R
C124
330pF-OP
EN
Q17
39041
2 3
F3FB
C48
47pF
C128
47pF
R150
4.7K
R152
75R
C122
47pF
C49
47pF
R148
4.7KL21
1.8uH
Q16
39041
2 3
C113
47pF
R145
4.7KJ7
S_VIDEO
5 4 23 1
GN
DG
ND
S_Y
S_C
S_Y
L192.7uH
L202.7uH
R147
4.7K
C133
270pF
+
C126
330uF/6.3V
C123
OPEN
C134
470pF
C127
0.1uF
F13FB
R153
100R
- 10 -
(6) AUDIO OUTPUT
1
11
VR
EF5V
VC
CA
UD
VR
EF5V
VR
EF5V
A_IN/O
UTR
A_IN/O
UTL
AC
LK
MU
TE_D
AC
ALR
CK
AC
LK
AB
CK
ASDAT0
SDAT0
SA
CLK
SLR
CK
ALR
CK
SB
CLK
AB
CK
ASDAT0
DA
C_M
L
SA
CLK
SB
CLK
A_A
VD
D
SLR
CK
DA
C_M
R
SDAT0
+3.3V
A_IN/O
UTL AO
UT_R
VC
C
INT/EXT
A_MU
TE
SHU
TDO
WN
CV
BS
_TFTTFT_O
UT
CVBS_O
UT
CV
BS
_TFT
TFT_OU
T
CVBS_O
UT
A_R
_SP
EA
KE
R
A_L_S
PE
AK
ER
AOU
T_L
AOU
T_R
A_MU
TE
A_IN/O
UTR
A_R
_SP
EA
KE
R
A_L_S
PE
AK
ER
VC
C_A
UD
A_R
_SP
EA
KE
R
SHU
TDO
WN
PHONE_ON
A_L_S
PE
AK
ER
AOU
T_L
SHU
TDO
WN
AL
AR
RO
UT+
LOU
T+LO
UT-
RO
UT-
VC
CA
UD
MU
TE_IN
MU
TE_D
AC
AC
LK
ASDAT0
ALR
CK
AB
CK
MU
TE_D
AC
VC
C
+3.3V
INT/EXT
MU
TE_IN
CV
BS
_TFT
TFT_OU
T
CVBS_O
UT
SHU
TDO
WN
VC
C
VC
C
VC
C_A
UD
VC
C
A_A
VD
D
+5V
+3.3V
+3.3V
VC
C_A
UD
C291uF
C41
470pF
C42
470pF
U27
CS
4344-OP
EN
123456 7 8 9 10
SDATA
DE
M/S
CLK
LRC
K
MC
LK
VQ
FILT+
AOU
TL
GN
D VA
AOU
TR
R98
47R
R88
10K
Q15
39041
2 3
Q13
39041
2 3
R100
10K
Q11
39061
23
+C63
220uF/6.3v
+
C61
10uF/16V
R134
open
R119
1K
R115
470R
CO
N3
SP
EA
KE
R
4 3 12
LOU
T-LO
UT+
RO
UT+
RO
UT-
R132
22K
R130
0R
D8
1N4148
1 2
C64
1000pF
D7
1N4148
12
R101
5.1K
+C26
10uF/6.3V
R118
3.3K
R110
1K/5k
R95
0R
D9
1N4148
12
R113
1K/5k
R133
470R
R129
200K
Q12
39041
2 3
J5
PH
ON
EJA
CK
234561
+C
2047uF/10V
+C
40100uF/6.3V
R97
15K
R140
4.7K
+C
37
47uF/10V
+C
38100uF/6.3V
R102
10K
L13
10uH
R135
200K
+C
39100uF/6.3V
C62
0.1uF
C59
220pF
C1822.2uF
+C
35
47uF/10V
Q14
90141
2 3
R127
4.7K
R120
1K
J4
VO
LUM
E 10K
12345
12345
R93
100K/?
C34
0.1uF
R117
open
R131
0R
R1441K
R123
4.7K
R103
100K/?
U19
TPA
6011
12345678910111213 14 15 16 17 18 19 20 21 22 23 24
GN
D
RO
UT-
PV
DD
RH
PIN
RLIN
EIN
RIN
VD
D
LIN
LLINEIN
LHPIN
PV
DD
LOU
T-G
ND
LOU
T+
SHU
TDO
WN
FAD
E
BY
BA
SS
GN
D
SE
MA
X
SE
DIFF
VOLU
ME
HP/LIN
E
SE/BTL
RO
UT+
Q10
85501
23
C32680pF
R116
1k
+
C60
10uF/16V
+C27
10uF/6.3
C21
0.1uF
R111
560R
R122
3.9k
R99
1.8K
L1622uH
R143
4.7K
Q8
39041
2 3
C58
0.1uF
C55
1000pF
C57
0.1uF
R141
4.7K
R94
560R
C31680pF
R114
3.3K
R138
4.7K
R109
4.7K
C86680pF
Q9
39041
23
C301uF
R136
560R
C85680pF
U21
F_TB3GA4.5Z
1
2345
67
8 +
2345
67
-
L1722uH
U16
CS
4334-OP
EN
12345 6 7 8
SDATA
DE
M/S
CLK
LRC
K
MC
LKAO
UTR
AGN
D VA
AOU
TL
R89
5.1K
+
C67
10uF/6.3V
+ -
U15A
MC
33202D
3 21
8 4+ -
U15B
MC
33202D
5 67
8 4
RN
3
33x4
12
34
56
78
R85
15K
+
C24
10uF/6.3V
R92
10K
R137
4.7K
C52
220pF
R96
560R
R104
0R
+
C36
2.2uF/6.3V
R142
3K
J9
AUD
IO L/R
5 4 23 1
GN
DG
ND
AUD
IOL
AUD
IOR
AUD
IOL
+
C53
10uF/16V
L15
220uH
+
C28
2.2uF/6.3V
+
C54
10uF/16V
L14
10uH
R139
open
R90
1.8K
U23
F_TB3GA4.5Z
1
2345
67
8 +
2345
67
-
+C
5647uF/10V
- 11 -
3 Power
3.1 Power Supply
Input voltage:
Normal voltage: 100 to 240 Vac. Variation range: 90 to 264 Vac.
Input frequency:
Normal frequency: 50 to 60 Hz. Variation range: 47 to 63 Hz.
Input current: 0.6 arms max. at any input voltage and max. DC output rated load.
Inrush current: 70 amps max. cold start at 240 Vaz. Input, with rated load and 25 ambient.
AC leakage current: 0.25 mA max. at 240 Vac. Input.
3.2 Rechargeable Battery
Output Voltage8.4~6.0V Cut-off Voltage5.7~6.0V Charge voltageThe battery pack should be charged when the input voltage is from11V to 15V Chargera.) Hiteker DC12V/2.0A adaptor.
b.) Hiteker DC12V/2.0A adaptor and Portable DVD LED is in red color when the battery pack is in charging; and turns into green color when
batter pack is full. If the battery pack is in Full status, no matter use adaptor charge directly or link DVD to
charge again, the LED must be turn into green color in 15 min. The cycle life of battery pack has more than 300 cycles. Charge: The battery pack must be able to charge when used the Hiteker DC12V/2.0A adaptor or
Hiteker DC12V/2.0A adaptor and portable DVD (power off status). Discharge: Using the battery pack as the power source for portable DVD that in DVD disc
playing mode, the discharging time must be exceed 2.5hrs. 3.2.1 Electrical Protection The battery pack shall be capable of withstanding a continuous short circuit output without damage.
- 12 -
The battery pack shall return to normal operation only after the fault has been removed. A thermal fuse must be added on the surface of cell body to protect the battery pack. A polyswitch must be add to protect the battery pack. Charge & Play Time of Battery Pack
Charge Time (hr)
DVD Title Play Time (hr)
Styling
Ni-MH 2400mAh (6S1P)
4~5 2.5
For DPC-7900 Series
- 13 -
4 Dimension & Physical Characteristics
4.1 Outline Dimension
205mm(L) x 163.5mm(W) x 38mm(H)
4.2 Physical Characteristics
1
2
345678
9
10
1112
1314
15 15
1.LCD SCREEN3.DISC MENU5.TV MODE7.SUB TITLE9.PAUSE11.ENTER13.SETUP15.SPEAKERS
2.TFT ON/OFF KNOB4.PREV6.NEXT8.PLAY10.STOP12.DIRECTION BUTTONS/FR,FF14.OPEN/PUSH
- 14 -
4.3 Exploded View
4.3.1 DVD Door & Mainbody_top module
- 15 -
4.3 Exploded View
4.3.2 Keyboard & Mainbody_top module
- 16 -
4.3 Exploded View
4.3.3 Mecha & Mainbody_bottom module
- 17-
4.3 Exploded View
4.3.4 Mainbody module
- 18 -
4.3 Exploded View
4.3.5 Display module & Mainbody module
- 19 -
5 Regulatory Standards
5.1 Safety
UL FDA
5.2 EMI
CE FCC
5.3 Ergonomics
Dolby
- 15 -
LVD
- 20 -
6 Service Tools and Equipment
6.1Service Tools and Equipment Table
Application Name
DVD Testing Disc General
General Tools screwdriver etc.
CD Testing Disc Confirm
VCD Testing Disc
Oscillograph
Probes
AV Cables
Adjust
TV Monitor
Searing-iron
Antistatic wrist strap
Grounding for electrostatic breakdown
Conductive material steel sheet
6.2 Storing and Handling Test Discs
It is important for a DVD testing disc keeping its surface precise. Please
care for storing and using it.
1. Do not place the disc on worktable directly after using.
2. Do not store discs in places subject to direct sunlight or near heat sources.
3. Do not place the disc on a glass surface. It may damage the disc. If this happened,
please use a new testing disc adjust DVD player precision.
6.3 Notes
PLEASE READ ALL NOTES GIVEN IN THIS MANUAL.
Locate
Place the unit on a firm, flat surface.
Do not place in a high temperature (upwards of 40 ) or high wet
(upwards of 80 percent) area.
Do not place in an area with a lot of dust.
Keep away from direct sunlight &domestic heating equipment.
Do not fall any objects into the unit.
Care should be taken so that liquids are not spilled into the unit openings.
Such situations could result in fire or electrical shock.
Keep the DVD video player away from any magnetic articles such as speaker etc.
Superposition
Please place the DVD player horizontally. Do not place a heavy object
(amplifier, receiver) on it. The object may fall, causing serious personal injury
- 21 -
- 22-
or death.
This unit should be situated away from heat source, such as amplifiers, radiators,
stoves or any other units producing heat.
Condensation
Lens could be moistening in these cases.
Turn on heater shortly,
In a very wet room,
Move the player from a cold environment to a heat environment quickly.
Being moisture inside the play could operate normally. Please turn on power and
wait about an hour for drying the moisture.
- 23 -
7 Spare Parts
7.1 Key Parts List
Location Part NO Part Name Description Maker Remark
GKB2.855.8105MX MEPG Board Hiteker W/O DivX
GKB2.855.8138MX Main Board
MEPG Board(With DivX) Hiteker With DivX
U17 MT1389QE_D MTK1389D MTK W/O DivX
U11 ICMT1389DE-C MPEG IC
MTK1389C MTK With DivX
U11 AT49LV4096AT-70TC 4M Memory ATMEL W/O DivX
U14 ICMX26LV800BTC-70
FLASH Memory IC 8M Memory FUJITSU With DivX
U7 IC42S16100-7T SDRAM IC ISSI W/O DivX
U13 IS42S16400-7T SDRAM IC
SDRAM IC ISSI With DivX
U38 ICBA5954FP DRIVE IC ROHM W/O DivX
U12 ICBA5954FP
MOTOR DRIVE IC DRIVE IC ROHM With DivX
U12 IC24C02 EEPROM IC ATMEL W/O DivX
U15 IC24C02 EEPROM IC
EEPROM IC ATMEL With DivX
UM1/2 MP1580 DC TO DC MPS W/O DivX
U1/2 MP1580 Power Trans IC
DC TO DC MPS With DivX
U19 TPA6011 AUDIO Amplifier TI W/O DivX
U20 TPA6011 AUDIO Trans IC
AUDIO Amplifier TI With DivX
GKB4.021.8027MX Key PCB Function Key Part Hiteker For All
GKB2.930.8026MX High Voltage PCB High Voltage PCB TOP-STAR For All
GKB2.855.8042MX Drive PCB TFT LCD Driver Hiteker For All
U201 HX8806 TCON IC TCON IC HIMAX For All
U1 IR3Y29B VIDEO Decode IC VIDEO Decode IC SHARP For All
DM-520A Loader DVD Player Foryou For All
HOP-1200W Pick up Pick up HITACH For All
CCM03-030R1-49 Spindle Motor Spindle Motor Moretech For All
WFF-030PB-08315 Sled Motor Sled Motor WeiZhen For All
PW070XU3 TFT Screen TFT screen PVI For All
GKB4.819.8045MX Rechargeable Battery Ni-MH2400mAh Rebenergy For All
GKB2.930.8015 AC/DC Adapter DC 12V 2.7A SiDa For All
GKB2.018.8072WX Remote Control Remote Control FeiDa For All
- 24 -
8 Trouble Shooting
8.1 Error Code Table
CODE Descriptions of Error Note
Power Test
T01 No power no action
T02 Power Led indicator is not on or insufficient brightness
T03 Loading time too long
T04 Remote control bad sensing or not functional
T05 System stays in the Run In condition after power on, can’t be tested
T06 System down at power on
T07 System down during playing
T08 Power on unstable
T09 Abnormal sound in the system
Disc Drive Test
T11 Can’t read the disc (No Disc)
T12 Disc drive no action or locked
T13 Disc drive scratches the disc
T14 Some discs can’t be played (can’t play CD or VCD or DVD)
T15 Head does not work
T16 Spindle does not work
Video Test
T21 No video / abnormal (Please indicate the abnormal condition)
T22 Video: no video / abnormal (Please indicate the abnormal condition)
T23 S-Video No video / abnormal or black & white (Please indicate the abnormal condition)
T24 VCD picture abnormal (Please indicate the abnormal condition)
T25 DVD picture abnormal (Please indicate the abnormal condition)
T26 Picture subtitle display abnormal or no display
T27 Setting menu picture abnormal (Please indicate the abnormal condition)
Audio Test
T31 Audio / left sound channel (AOL) does not have waveform (sound) or waveform (sound) abnormal
T32 Audio / right sound channel (AOR) does not have waveform (sound) or waveform (sound) abnormal
- 25-
T33 MP3 abnormal sound
T34 Audio no waveform (sound) or waveform (sound) abnormal
Earphone Test
T41 Earphone no sound or the sound has pause, abnormal sound, noise, echo
T42 Earphone (right) no sound or the sound has pause, abnormal sound, noise
T43 Earphone (left) no sound or the sound has pause, abnormal sound, noise
Function Key Test
T51 Video can’t be still or stop
T52 Can’t execute fast forward or rewind
T53 Panel button
System Setting Test
T61 Can’t enter the system setting
T62 The system can not be played or it is down after the system is set
TFT Test
T71 TFT image and color error
T72 TFT image is black and white
T73 TFT image shakes and is distorted
T74 TFT PAL color strip
6.2 Debug & Trouble Shooting
CB for any missing components and bad soldering T01No Power
Main Board A. Check for components on the Main Board to see if there are any short circuits.
B. Check for the power adapter to see if the 12V power is abnormal. C. Check for components C6,C7,CE100,C3 on the Main Board to see if there are
any short circuits.
D. Check for component CN1 on the Main Board to see if the switch have function. E. If none of the above actions is effective, please change Main Board.
T02Power LED indicator not on or insufficient brightness
Main Board A. Open the cover of the portable DVD-player to inspect if LED functions normally.
T75 TFT ripple
- 26 -
Please replace with a good one.
C. Disassemble F/W, replace with a good one or re-plug it to see if the LED lights up when Power ON.
D. If the above actions are not working, replace the Main Board.
T03Loading time too long
Main Board A. Check the flat cable to see if it is adhibited to the right place. B. Remove the cover to see if the resistors or resistor-array adjacent to U38 and or
U17, to see if there is any cold soldering, hollow soldering, misplaced soldering,
or wrong part.
T04Remote control bad sensing or not functional
Remote control
C. If the above actions are not working, replace the Main Board.
A. If the main body of the system works normally, then making sure that the
battery of the Remote control has sufficient power, if it is not, replace the battery. Main Board
A. Remove the top cover and the panel. Check to see if IR1 has short circuit, broken circuit, hollow soldering, or other problems. Also check if the pins 1 of IR1 have power.
B. If the above actions are not working, replace the Main Board. T05Stay in the Run In condition after power on, can’t be tested
Main Board A. The same refer to T03.B. If the above actions are not working, replace the Main Board.
T06System down at power on
Main Board A. Remove the top cover, check all flat cables in the system to see if they are correctly
plugged to the fixed positions, or re-plug them. B. Check the pin 1 of U3 to see if it is low voltage. If not , disassemble R5 or pull it to
low voltage with a lead.
C. If the above actions are not working, replace the Main Board. T07System down during play
Main Board A. Exclude the condition of using battery. (The system will down when the
voltage is too low.) B. Disassemble U17 F/W, replace with a good one or re-plug it to see if the
symptom will disappear.
- 27 -
C. Remove the top cover, check all flat cables in the system to see if they are
correctly plugged to the fixed positions, or re-plug them.
D. Check the capacitors C19 and the diode D6 to see if the reset circuit works normally.
E. If the above actions are not working, replace the Main Board. DVD ROM
A. Check the loader to see if it is not stable (any condition that some of the discs can’t be played). If so, replace the loader.
DVD DISC A. Check the Test Disc to see if there is any serious scratch or ring shape, circular
shape scratches, if so, replace the Test Disc and test again. T08Power on unstable
Main Board A. Remove the top cover, check all flat cables in the system to see if they are
correctly plugged to the fixed positions, or re-plug them. B. Check the LDO Q3 to see if it works normally with a 1.8V output voltage.
C. Check the reset circuit refer to the title T07-D.
D. If the above actions are not working, replace the Main Board. T09Abnormal sound in the machine base (Power on abnormal sound)
DVD ROM A. Check the loader to see if it is the source of the abnormal sound. If so, replace the loader.
B. If the abnormal sound comes from the audio speakers, check the audion PNP3906
T11Disc drive can’t read (NO DISC)
Main Board A. Remove the top cover, check the 28-pin flat cable in the system to see if they
are correctly plugged to the fixed positions, or re-plug them.
B. Check the resistors or resistor-array adjacent to U38 and U17 to see if there is
any hollow soldering or cold soldering.
type Q16 and NPN 3904 type Q8/9/10/12/13/15 to confirm the mute circuit works
normally. If not ,change the audion.
C. If the above actions are not working, replace the Main Board. If it is still not working, replace the loader.
DVD ROM A. Check the loader to see if it can’t read. If so, replace the loader.
T12Disc drive no action or locked
Main Board A. Remove the cover. Check to see if it is caused by mis-assembly. B. Check the resistors or capacitors adjacent to U38 to see if there is any hollow
soldering or cold soldering.
C. If the above actions are not working, replace the loader. If it is still not working,
- 28 -
replace the main board. T13Disc drive scratches disc
Main Board
A. Check the resistors or capacitors adjacent to IC(U17) to see if there is any hollow
soldering, cold soldering, wrong part, or misplaced soldering.
B. If the above actions are not working, replace the loader. If it is still not working,
replace the main board.
DVD ROM A. Check the loader to see if it is the cause of disc scratching. If so, replace the
loader. T14Not every disc can be played
Main Board
A. Check the resistors or capacitors adjacent to IC(U17) to see if there is any hollow soldering, cold soldering, wrong part, or misplaced soldering.
B. If the above actions are not working, replace the loader. If it is still not working, replace the main board.
T15Head does not work
Main Board A. Remove the top cover, check the 28-pin flat cable and the 2-pin cable in the
system to see if they are correctly plugged to the fixed positions, or re-plug them.
B. Check the resistors or capacitors adjacent to IC(U17) to see if there is any hollow soldering, cold soldering, wrong part, or misplaced soldering.
C. If the above actions are not working, replace the loader. If it is still not working,
replace the main board.
T16Spindle does not work.
Main Board A. Remove the top cover, check the 4-pin flat cable in the system to see if they
are correctly plugged to the fixed positions, or re-plug them.
B. Check the resistors or capacitors adjacent to IC(U17) to see if there is any hollow
soldering, cold soldering, wrong part, or misplaced soldering.
C. If the above actions are not working, replace the loader. If it is still not working,
replace the main board.
T21No video / abnormal
Main Board A. Remove the top cover, check all flat cables in the system to see if they are
- 29 -
correctly plugged to the fixed positions, or re-plug them.
B. Use oscilloscope to measure if Y1 generates 27MHz. If it does not generate
said frequency, and the problems such as cold or hollow soldering have been
ruled out, it maybe Y1 work abnormally . Replace Y1 with a 27MHz
fundamental frequency oscillater.
C. Check if U17(F/W) IC has any problem.
D. Check if switch for TFT on/off is normal; replace a new one if necessary. E. If the above actions are not working, replace the Main Board.
Driver Board
B. Adjust VR4,VR6,VR1,VR7,VR5 to the appropriate value.
A. Check VR6,VR4,VR1,VR7,VR5 is using the correct component. Also check if it’s damaged.
DVD ROM (less likely to happen) A. If it is useless to change the main board, then replace the loader.
T22Video no video / abnormal
Main Board A. Remove the cover. Check the main board to see if there is any cold or hollow
soldering and rule out the problem. B. Remove the top cover, check all flat cables in the system to see if they are
correctly plugged to the fixed positions, or re-plug them. C. Check RLC following CVBS to see if there is any wrong parts, cold and hollow
soldering, short circuit, broken circuit, broken parts and rule out the problem. D. If the above actions do not work, then check U17Pin175 and Pin182 to see if
there is CVBS signals.
E. If the above actions are not working, replace the Main Board.
T23S-Video no video / abnormal or black & white
Main Board A. Remove the cover. Check the main board to see if there is any cold or hollow
soldering and rule out the problem.
B. Remove the top cover, check all flat cables in the system to see if they are correctly plugged to the fixed positions, or re-plug them.
C. Check RLC following Y and C to see if there is any wrong parts, cold and hollow soldering, short circuit, broken circuit, broken parts and rule out the problem.
- 30-
D. If the above actions do not work, then check U17 Pin179 and Pin181 to see
if there is Y and C signals.
E. If the above actions are not working, replace the Main Board.
T24VCD abnormal picture
Main Board
A. Check main board to see if there is any cold or hollow soldering and short
circuit problem and rule out the problem. B. Check the resistors or capacitors adjacent to IC(U17) to see if there is any
hollow soldering, cold soldering, wrong part, or misplaced soldering.
C. If the above actions are not working, replace the Main Board.
DVD ROM A. If the abnormal picture is the problem of pause or skipping tracks, then making
sure if the disc has any scratches or dirt, if no such problems then replace the loader.
T25DVD abnormal picture
Main Board
A. Check U17 to see if there is any cold or hollow soldering and short circuit
problem and rule out the problem. B. Check the resistors or capacitors adjacent to IC(U17) to see if there is any
hollow soldering, cold soldering, wrong part, or misplaced soldering.
C. If the above actions are not working, replace the Main Board.
DVD ROM A. If the abnormal picture is the problem of pause or skipping tracks, then making
sure if the disc has any scratches or dirt, if no such problems then replace the loader.
T26Picture subtitle abnormal display or no display
Main Board A. Remove the top cover and dis-assemble F/W (U17). Replace it with a good
F/W or re-plug it, then check if the action is normal. Otherwise replace the F/W. B. Check U17 to see if there is any cold or hollow soldering and short circuit
problem and rule out the problem. C. If the above actions are not working, replace the Main Board.
T27Setting menu abnormal picture
Main Board A. Check U17 to see if there is any cold or hollow soldering and rule out the problem.
- 31 -
B. Remove and dis-assemble U7 with a 16Mbit SDRAM.
C. If the above actions are not working, replace the Main Board. T31Audio /left channel (AOL) no sound or abnormal sound
Main Board A. Remove the cover. Check U15 on the Main board to see if there is any cold
soldering, hollow soldering, or damage. Rule out the problem. B. Check all parts following AOL to see if there is any cold or hollow soldering,
short circuit, broken circuit, parts missing, wrong parts and rule out the problem.
C. If the above actions are not working, replace the Main Board. T32Audio /right channel (AOR) no sound or abnormal sound
Main Board A. Remove the cover. Check U15 on the Main board to see if there is any cold
soldering, hollow soldering, or damage. Rule out the problem. B. Check all parts following AOR to see if there is any cold or hollow soldering,
short circuit, broken circuit, parts missing, wrong parts and rule out the problem.
C. If the above actions are not working, replace the Main Board. T33MP3 abnormal sound
Main Board A. Remove the top cover, check all flat cables in the system to see if they are
correctly plugged to the fixed positions, or re-plug them. B. Check the resistors or capacitors adjacent to IC(U17) to see if there is any
hollow soldering or cold soldering.
C. If the above actions are not working, replace the main board. If it is still not working, replace the loader.
T34Audio no waveform (sound) or waveform (sound) abnormal
Main Board A. Remove the cover. Check U15 on the main board to see if there is any cold
or hollow soldering and rule out the problem. B. Check all parts following AOL and AOR to see if there is any cold or hollow
soldering, short circuit, broken circuit, parts missing, or wrong parts. Rule out the problem.
C. If the above actions are not working, replace the Main Board. T41Earphone Audio no waveform (sound) or waveform (sound) abnormal
Main Board A. Remove the top cover, check all flat cables in the system to see if they are
correctly plugged to the fixed positions, or re-plug them.
- 32 -
B. Check U19,U15 and J4,CON3 to see if there is any cold or hollow soldering
and rule out the problem. C. If the above action does not work after the inspection, replace the main board.
T42Earphone Audio right no waveform (sound) or waveform (sound ) abnormal
Main Board A. Check U19,U15 and J4,CON3 to see if there is any cold or hollow soldering
and rule out the problem. Especially check for C24,C26,C28.
B. If the above action does not work after the inspection, replace the main board. T43Earphone Audio left no waveform (sound) or waveform (sound) abnormal
Main Board A. Check U19,U15 and J4,CON3 to see if there is any cold or hollow soldering
and rule out the problem.Especially check for C27,C36,C67. B. If the above action does not work after the inspection, replace the main board.
T51Video can’t be still or stopped
Remote control A. If the main body of the system works normally, then making sure that the
battery of the Remote control has sufficient power, if it is not, replace the battery.
Main Board A. Check to see if U17 is damaged, and check all parts following U17 to see
if there is any cold or hollow soldering, short circuit, broken circuit, broken
parts, parts missing and rule out the problem. B. Check to see whether U17 is damaged. C. If the above actions are not working, replace the Main Board.
T52Can’t execute fast forward or rewind
Main Board A. Check to see if U17 is damaged, and check all parts following U17 to see
if there is any cold or hollow soldering, short circuit, broken circuit, broken
parts, parts missing and rule out the problem. B. Check to see whether U17 is damaged. C. If the above actions do not work after the inspection, it means the main board or
F/W is bad. Replace the main board or re-burn the F/W (U11). T53Panel button
Main Board A. Check U17 and 11-pin plug in jack CON2 to see if there is any cold or hollow
soldering and reverse soldering of IC or parts missing.
B. If the above actions do not work after the inspection, check the 11pin cable to see if there is any damage.
C. If the above actions are not working, Replace the control board or the main board.
T61Can’t enter the system setting
- 33 -
Main Board A. Check U17 to see if there is any cold or hollow soldering and reverse soldering
of IC or parts missing. B. If the above actions do not work after the inspection, it means the main board or
F/W is bad. C. If the disk is abnormal, ask for a new version software .
T62System can’t play or system down after setting
Main Board A. Check U17 to see if there is any cold or hollow soldering and reverse soldering
of IC or parts missing. B. If the above actions do not work after the inspection, it means the main board or
F/W is bad. Replace the main board or re-burn the F/W (U11). T71TFT image and color error
Main Board A. Check the 11-pin cable connected to the driver board to see if there is any
problem of plugging. Rule out the problem. B. Check devices after Y/C signal to see if there is any cold or hollow soldering
and reverse soldering of IC or parts missing. C. Check U17 to see if there is any cold or hollow soldering and reverse soldering
of IC or parts missing. D. If the above actions are not working, replace the Main Board.
Driver Board A. Measure the voltages of VGH,VGE,VCC,VDD,VIN and VSS to see if they are
correct. B. Check VC1 to see if there is any cold or hollow soldering and reverse soldering
of IC or parts missing. C. Check Y1,Y2 to see if there is any cold or hollow soldering and reverse soldering
of IC or parts missing. D. If the above actions are not working, replace the Driver Board.
T72TFT image is black and white
Main Board A. Check the 11-pin cable connected to the driver board to see if there is any
problem of plugging. Rule out the problem. B. Check devices after Y/C signal to see if there is any cold or hollow soldering
and reverse soldering of IC or parts missing. C. Check U17 to see if there is any cold or hollow soldering and reverse soldering
of IC or parts missing. D. If the above actions are not working, replace the Main Board.
Driver Board
- 34 -
A. Measure the voltages of VGH,VGE,VCC,VDD,VIN and VSS to see if they are
correct. B. Check VC1 to see if there is any cold or hollow soldering and reverse soldering
of IC or parts missing. C. Check the devices surrounding U1 and U201 to see if there is any cold or hollow
soldering and reverse soldering of IC or parts missing. D. Check Y1,Y2 to see if there is any cold or hollow soldering and reverse soldering
of IC or parts missing. E. If the above actions are not working, replace the Driver Board.
T73TFT image shakes or is distorted
Main Board A. Check the 11-pin cable connected to the driver board to see if there is any
problem of plugging. Rule out the problem. B. Check devices after Y/C signal to see if there is any cold or hollow soldering
and reverse soldering of IC or parts missing. C. Check U17 to see if there is any cold or hollow soldering and reverse soldering
of IC or parts missing. D. If the above actions are not working, replace the Main Board.
Driver Board A. Measure the voltages of VGH,VGE,VCC,VDD,VIN and VSS to see if they are
correct. B. Check VC1 to see if there is any cold or hollow soldering and reverse soldering
of IC or parts missing. C. Check the devices surrounding U1 and U201 to see if there is any cold or hollow
soldering and reverse soldering of IC or parts missing. D. Check Y1,Y2 to see if there is any cold or hollow soldering and reverse soldering
of IC or parts missing. E. If the above actions are not working, replace the Driver Board.
T74TFT PAL color strip
Driver Board A. Measure the voltages of VGH,VGE,VCC,VDD,VIN and VSS to see if they are
correct. B. Check VC1 to see if there is any cold or hollow soldering and reverse soldering
of IC or parts missing. C. Check the devices surrounding U1 and U201 to see if there is any cold or hollow
soldering and reverse soldering of IC or parts missing. D. Check Y1,Y2 to see if there is any cold or hollow soldering and reverse soldering
- 35 -
of IC or parts missing. E. Check Pin 1 to Pin 16 on U202 for any cold or hollow soldering and reverse
soldering of IC or parts missing. F. If the above actions are not working, replace the Driver Board.
T75TFT ripple
Main Board A. Check the 13-pin cables connected to the driver board to see if there is any
problem of plugging. Rule out the problem. B. Check the 3-pin cable connected to the high-voltage board to see if there is
any problem of plugging. Rule out the problem. C. If the above actions are not working, replace the Main Board.
Driver Board A. Measure the voltage U1 to see if it is correct. B. Check the devices surrounding VR202 to see if there is any cold or hollow
soldering and reverse soldering of IC or parts missing. C. If the above actions are not working, replace the Driver Board.
High-Voltage Board A. Check the 3-pin cable connected to the high-voltage board to see if there is any
problem of plugging. Rule out the problem.
B. Check the sharing cable connected to the panel to see if there is any problem
of plugging. Rule out the problem. C. Check the high-voltage cable connected to the panel to see if there is any
problem of plugging. Rule out the problem.
D. If the above actions are not working, replace the inverter board.
Panel A. Check the sharing cable connected to the high-voltage board to see if there is
any problem of plugging. Rule out the problem. B. Check the high-voltage cable connected to the panel to see if there is any
problem of plugging. Rule out the problem. C. If the above actions are not working, replace the panel.