Daewoo DPC-8200PD User manual

(8.0-Inch) LCD Color Monitor &
DVD Player
NOV. 2006
DPC-8200PD
OSDPC82001

(8.0-Inch) LCD Color Monitor &DVD Player
MODEL : DPC-8200PD
CONTENTS
----------------
Specification....................................................... ............................................... ...
2
Block Diagram................................... ................................................................ ... 4
General Alignment Instruction....................................................................... ...... 6
Troubleshooting........................................................................................... ... ... .. 7
Printed Circuit Board........................................................................................ ... ... 9
IC BLOCK DIAGRAM & DESCRIPTION....................................................... .. .. 14
Explode View........................................................................................................ ...... . 28
Schematic Diagram......................................................................................... ..... .. 29

-2-
SPECIFICATION
LCD MONITOR
Description Condition Unit Limit Nominal
Headphone1 Output 1KHz0dB mW 3±23
Headphone2 Output 1KHz0dB mW 3±23
Headphone1 Noise No Signal mV <1mV <1mV
Headphone2 Noise No Signal mV <1mV <1mV
L1KHz0dB mW
600±100
600
SPK MAX Output R1KHz0dB mW
600±100
600
L1KHz0dB mW
600±100
600
SPK MAXOutput(AV IN) R1KHz0dB mW
600±100
600
REF THD 1KHz0dB %53
SPK S/N Infinityzere/- dB/L&R dB 35 35
Headphone S/N Infinityzere/- dB/L&R dB 60 60
Luminance(MAX) White Signal LUX 300±50 300
Luminance(8STEP) White Signal LUX 250±50 250
Luminance(MIN) White Signal LUX 100±50 100
20HzdB ±30
125HzdB ±30
10KHzdB ±30
1
20KHzdB ±30
20HzdB ±30
125HzdB ±30
10KHzdB ±30
Headphone RESP
2
20KHzdB ±30

-3-
DVD
Description Condition Unit Limit Nominal
Video Signal Level Vp-p 0.7±0.1 0.7
SYNC Level Vp-p 0.3±0.1 0.3
Video out level
75% color
bar/75ohm Vp-p
1.0±0.2 1
Video out level(Unload) 75% color bar Vp-p 2.0±0.2 2
CD 1KHz/0dB/10K V2.0±0.2 2
Audio out level DVD
1KHz/0dB/10K V2.0±0.2
2
20Hz dB ≤±30
125Hz dB ≤±30
10KHz dB ≤±30
FREQ RESP (DVD)
(20Hz~20KHz)
20KHz dB ≤±30
Signal-to-noise radio Infinityzere/- dB/L&R dB 60 60
Audio distortion&noise (DVD) 1KHz/0dB/L&R dB ≤-65 -65
Dynamic range (DVD) 1KHz/-60dB dB 85 85
R/L Cross sound (DVD) 1KHz/0dB/L&R dB 45 45
1KHzChannel unbalance (DVD) 1KHz/0dB/L&R dB ≤30
Power Consumption StandbyW00
DC 9V Rating W ≤12 ≤12
EccentricityA BEX TDV-552 um
100 100
Scratch A BEX TDV-541 mm
1.6 1.6
Blackdot A BEX TDV-545 mm
ф0.8 0.8
Finger Print A BEX TDV-545 um
ф65 65
Vertical deviation A BEX TDV-533 mm
0.6 0.6
Note: Nominal specs represent the designspecs. All units should be able toapproximate these. Somewill
exceed andsomemaydropslightlybelowthese specs. Limit specs represent the absolute worst condition that
might still be considered acceptable. In no case should a unit fail to meet limit specs.

-4-
BLOCK DIAGRAM
LCD
OZ970
YC
H
S
Y
N
C
S
W
R
G
B
D3031
8
D
0
2
D
DC
A8430
+12V +7V -10V
8
”
P
a
n
a
s
o
n
i
c
P
A
N
E
L
H.V. TRAN
DC
H
I
G
H
V
O
L
T
A
G
E
O
S
C

-5-
DVD
DVD DECK
PICK UP
EEPROM
AT24C02-SOP8
FILTER AUDIO DAC AUDIO
AMP
SERVO DRIVER
A5954
DC/DC CONVERT
FLASH 1Mx8 BIT
DECODER
MICRO CODE KEY BOARD
SDAM 4Mx16BIT
REMOTE
SENSOR
SERVO DSP
MPEG DECODER
RISC CONCROL
8032MCU MT1389E
1
6
B
I
T
B
U
S
L
&
R
O
U
T
L
&
R
A
U
D
I
O
D
A
T
A
B
U
S
VIDEO OUT
27.000MHZ
VIDEO DAC
KEY SIGAL
SPINDLE
VELOCITY
ERROR
FE TE DRIVER
F
O
C
U
S
T
R
A
C
K
S
L
E
D
D
R
I
V
E
R
M
O
T
O
R
V
E
L
O
C
I
T
Y
DC/DC CONVERT
+9V INPUT
+5V +3.3V
I
C
D
A
T
A
I
C
C
L
K
R
F
S
I
G
N
A
L
G
R
O
U
P

-6-
GENERALALIGNMENT INSTRUCTION
The Main PCB of Monitor Modification:
1. Input voltage is 6.8V-16V, input signal is test circuit BY5418.
2. Adjust VRB1 to get test point: 15720Hz..
3. Adjust VRB2 to get horizontal phase shift.
4. Adjust VR1 to get good performance.
5. Adjust S201. S202 to get good Tint.
The main PCB of DVD Modification:
1. Adjust the brightness to the brightest byVR, adjust video pattern’s color to white, test the screen
Brightness is 200±102 LUX.
With luminometer You can adjust R250 to get this standard.

-7-
TROUBLESHOOTING
LCD
SYMPTOMCAUSE REMEDY
LCD MONITOR PART
1) Picture distortion &Defective capacitor (C201)
&Replace capacitor C201.
2) No Picture &Defective IC (D3031).
&Replace IC D3031.
3) No Picture, Picture no
Good
&Defective Q7, Q8. &Replace Q7, Q8.
4) Color is no good &Defective X202.
&Replace X202.
5) SYNC no good &Defective IC 8D02D. &Replace IC 8D02D.
6) TINTno good &Defective S201, S202
&Replace S201,S202.
7) NO Picture
&Defective IC A8430. &Replace A8430.
8) Picture no good
&Defective CON1. &Replace CON1.
9) Brightness no good
&Defective IC M5237 Q10A. &Replace IC M5237 Q10A.

-8-
DVD
SYMPTOMCAUSE REMEDY
DVD PART
1) No Power &Power source is not correct.
The positive and negative does not
match the unit.
&Power button defective.
&Defective triode U7.
&Replace power source.
&Change the position of
positive and negative.
&Replace power button.
&Replace U7.
2) No Picture &Defective U10 (24C02N).
&Defective U5.
&Defective IC MTK1389E.
&Replace U10 (24C02N).
&Replace U5.
&Replace IC MTK1389E.
3) No Sound &Defective U14 (C4558).
&Defective U1 (14053).
&Defective U2.
&Replace U14 (C4558).
&Replace U1 (14053).
&Replace U2.
4) Sound no good &Defective U14.
&Replace U14.
5) Can not read DISC &Defective U18.
&PICK-up Laser is defective.
&Replace U18.
&Replace pickup.
6) No keyfunction &Defective IC MTK1389E. &Replace IC MTK1389E.
7) No remote control function &Defective REMOTE.
&Keyis Defective.
&Replace REMOTE.
&
Replace keys.
Remark: Upgrade the firmware step: 1. Rename the file name to “MTK.BIN”;
2. change the CDs name to “MEDIATEK”
3. copythe upgrade firmware file to CDs
4. Playbackthe CDs and according to cue on upgrade

-9-
PRINTED CIRCUIT BOARD
Monitor Main PCB
Top ViewBottom View