Philips FWD876 Service Manual page 12

REPAIR INSTRUCTIONS ( MAIN UNIT )
H
MIC Function
No working
CheckMIC pcb
YES
RE-insert and fi x
RB2 2 cable
the cable
loose or ba d INT
YES
Check test IC701& Checkback power
NO
IC700pin8=12V PCB power supply
circuit
Pin4=5V
YES
Check test JK200
&
IC200& MIC PCB
2-4
MAIN UNIT REPAIR CHART 3/3
I
Tuner function
No sound
Check TUNER pcb
YES
RE-insert and fi x
CN 4 cable
the cable
loose or bad INT
YES
Check test CN4 Check back power
NO
pin9=9V PCB power supply
circuit
YES
Check TUNER PART
J
AUX IN
No SOUND
BAD
Check JK700 IS
Change JK700
GOOD OR BAD
OK
Check between Repair between
NO
JK700 TO
JK700 TO
IC702 circuit IC702 circuit
OK
Check IC7 2 and its
around part
2-4
K
TAPE FUNCTION
No WORKING
Check TAPE pcb
YES
RE-insert and fi x
RB802 & CN800 cable
the cable
loose or ba d INT
YES
Check test IC804
Check back power
NO
Pin15,16=5V
PCB power supply
IC803 pin16=12V
circuit
YES
Check IC804 & IC803
its around part