TROUBLESHOOTING GUIDE
No
Yes
No
Yes
No
Yes
Check TUNER BLOCK.
Does TUNER AUDIO
signal appear at pin 48 of
IC5501 ?
Hi-Fi AUDIO CAN NOT BE
RECORDED
Is the voltage at pin 58 of
IC5501 DC9V and pins 25
and 40 of IC5501 DC5V ?
Check Power circuit.
Does AUDIO signal
appear at pins 53
and 57 of IC5501 ?
No
Yes
Check IC5501 and the peripheral
circuit.
No
Yes
Check Operation PCB, J701 and
J4201.
Does Hi-Fi H. SW
signal appear at pin
27 of IC5501 ?
No
Yes
Check the circuit between pin 14
of IC1001 and pin 27 of IC5501.
Check IC5501.
Does FM LEVEL appear at
between pin 8 and pin 9, also
pin 7 and pin 8 of CP4001
during REC ?
Clean the AUDIO HEAD.
Does AUDIO signal appear
at pins 2, 4, 10 and 15 of
IC5501 during REC ?
E-30