Pioneer x-rsm400dvh, Service Manual

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3-9
12. TAPE PLAY PART CHECK
NO
NO
Refer to PWM modulation
troubleshooting
Check
IC 60 4(PS 98 3 0 )
_ pin4 9 , 52 PWM
output
Check IC2 0 1 _
pin1 0 , 21 output
Check IC1 00_
pin23 "H IG H"
TAPE REC PART
CHECK
NO
Replace IC2 0 1
Replace IC2 0 2
YES
OK
NO
Check L2 0 3 _ pin2, 3
oscillation
Check Q 2 0 5(D13 0 4) _
base "H IG H"
NO
Check IC2 0 2 _ pin4 "H IG H"
YES
OK
OK
YES
YES
YES
YES
YES
Check IC2 0 1 _ pin 7 , 24
record input
YES
Check P22 0 3 _ pin5, 3 input
and pin 8 erase input
YES