Excellent quality on these manuals. Same as having the original printed manual and incredibly useful when doing a custom install like me. Keep it up on the good work.
Thank you very much you are helping me a lot with my preferred hobby!!! this manual of an old TV is going to be very helpful!!!!
You are very honest competent great job very clear and well done!!!!
Matteo
Text excerpt from page 42 (click to view)
TROUBLESHOOTING GUIDE
AUDIO CAN NOT BE RECORDED
Is BIAS level O.K at L4005 ? Yes
No
Is the voltage at pin 2 of L4005 5.8V ? Yes
No
Check POWER circuit.
Is the voltage at pin 29 of IC1002 about 5V ? Yes
No
Replace IC1002.
L4005 is broken or shorted. Is there AUDIO signal at pin 5 of CP4002 ? Yes No Check the circuit between pin4 of IC4001 to pin 5 of CP4002.
