Daewoo DTD-25G1 ME, Service Manual

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APPENDIX
TROUBLE SHOOTING CHARTS
CAUTION
1. NO RASTER
CHECK MAIN
B+(132V)
CHECK VOLTAGE
OF C805(470uF)
295Vdc AT AC 220V
CHECK /REPLACE
F801
CHECK /REPLACE
D801,R802,R803
CHECK VOLTAGE AT
PIN 5 OF I701
ST-BY:H,
POWER ON:L
CHECK VOLTAGE AT
PIN
9(2.5V), 44(3.3V)
CHECK SIGNAL AT PIN
2(SCL), 3(SDA)
OF I701
CHECK /REPLACE
X701(6MHz), I701
ABNORML
ABNORML
CHECK Heater Voltage
VIDEO B+(220V) LINE
27V & 12V
NORMAL
CHECK Horizontal drive
pluse AT PIN 32 OF I501
ABNORML
CHECK / REPLACE
I801
(STR-F6656) &
NORMAL
CHECK / REPLACE
I802 (DPM011 T1)
MODULE POWER
CHECK Horizontal VCC
AT PIN 31(9V) OF I501
ABNORML
CHECK / REPLACE
I803(X0202DA)
I808(KA7805)
I804(LP2950 3.3V)
NORMAL
ABNORML
ABNORML
CHECK SINGNAL AT
PIN34,35 OF I501
CHECK / REPLACE
I501
CHECK / REPLACE
Q402,Q401,T402
R401,D402,D403
CHECK /REPLACE
CRT BLOCK
NORMAL
NORMAL
NORMAL