Philips CD163 - Page 20

FAULTFINDING GUIDE
POWER ON
POWER SUPPLY CHECK: FUSES
MAINSTRANSFORMER
VOLTAGES: AC DCLCD
SAFETY RESISTORS
DISPLAY CHECK: COMMUNICATION uP LCD
WIRING
OISPLAY ORIVER
MICROPROCESSOR 7700
CHECK: PIN 12 uP 7700
OPAMP 7600A
TRAY MECHANISM
OPEN TRAY o
WIRING
LOAD DISC
PRESS PLAY
(
z nN
Oo
TOC
ON
DISPLAY,
?
Y
SEE FAULTFINDING GUIDE OF CDM-12 N
0
PRESS PLAY
?
CHECK: POWER SUPPLY
SAFETY RESISTORS 3113.3115
1.C.7100 (SAA7345)
CHECK: POWER SUPPLY
SAFETY RESISTORS 3280,3302,3303
1.C.7280 (TOA1545)
OPAMP 7300
LA. RECEIVER 1040 (FOR CD165 ONLY)
PIN 37 OF 1.C. 7700
RESISTOR 3421,
TRANSISTOR 7403 (FOR CD163 ONLY)
CHECK: TESTPOINT 95,96
KILL CIRCUIT ON POWER SUPPLY
TRANSISTORS 7360,7361
KILLE ON PIN 16 OF 1.C.7700
KILLL, KILLR ON PIN 27, 26 OF 1.C.7100
TRANSISTORS 7364,7365
CHECK: I.C.7280 (TDA1545)
SEE SPECIFICATIONS MEASUREMENT
GO TO SERVICE MODE
PRESS PLAY
ERROR MESSAGES
PCS 64 118 o ce