Philips FWD876 Service Manual page 11

REPAIR INSTRUCTIONS ( MAIN UNIT )
D
Audio line
No output
BAD
Check JK700 is
Change JK700
good or bad
OK
Check IC500
NO
Check12V
pin8=12V
supply circuit
pin4=-12V
YES
Repair between
CheckIC500 to
NO
IC500 to JK700
JK700
and IC106 ciruit
and IC106 ciruit
YES
Check IC106 and
IC301,IC500
its conjaint part
2-3
MAIN UNIT REPAIR CHART 2/3
E
Digital line
No output
Check JK102 is
BAD
Change JK102
good or bad
OK
Check 5V
check IC109
NO
supply ci r cuit
pin14= 5V
YES
Check between
JK201 TO
IC106 Pin95 circuit
YES
Check IC106
circuit
F
DVD
No Vi deo
BAD
CheckJK100 is Change JK100
good or bad
OK
Check between
NO Repairbetween
JK100 TO
JK100 TO
IC106 circuit
IC106 circuit
OK
CheckIC106 and
its around part
2-3
G
USB FUNCTION
NO WORKING
Check USB pcb
YES
RE-insert and fi x
CN104 cable
the cable
loose or bad INT
NO
Checktest CN104 Check back power
NO
PCB power supply
Pin1=5V
circuit
YES
CheckUSB JK&
PCB section bad
cause damage