Hi!
This "pacient" ( VEF SIGMA 260) has been diagnosed and treated some time ago (at least on the radio's part)
The audio amp part is working ok , it receives radio stations , very loud output , no distortions , on AM and FM (this part was repaired , replaced T9 , T10 and C35 .
But it also has a cassette deck , and here is the problem
When I put a cassette and press the play button , the motor spins , the belt is not broken , mechanical mechanism is ok .
But , the audio is terrible , somewhat distorted and very very weak sound (need to stick my ear to the speaker)
So , if the audio amp stage is working , then the problem is with something on the signal path from the deck to the audio amp ?
Can you like highlight/tell the path of the signal going from the deck to the audio amp ?
I'm not familiarized with russian schemathics , I attached the schematic (pdf)
Also a service manual that I found on the internet (all in russian)
http://www.radiohistoria.sk/Oldradi...161873f728cc125735f0064d86f/$FILE/VEF 260.pdf
Thanks !
This "pacient" ( VEF SIGMA 260) has been diagnosed and treated some time ago (at least on the radio's part)
The audio amp part is working ok , it receives radio stations , very loud output , no distortions , on AM and FM (this part was repaired , replaced T9 , T10 and C35 .
But it also has a cassette deck , and here is the problem
When I put a cassette and press the play button , the motor spins , the belt is not broken , mechanical mechanism is ok .
But , the audio is terrible , somewhat distorted and very very weak sound (need to stick my ear to the speaker)
So , if the audio amp stage is working , then the problem is with something on the signal path from the deck to the audio amp ?
Can you like highlight/tell the path of the signal going from the deck to the audio amp ?
I'm not familiarized with russian schemathics , I attached the schematic (pdf)
Also a service manual that I found on the internet (all in russian)
http://www.radiohistoria.sk/Oldradi...161873f728cc125735f0064d86f/$FILE/VEF 260.pdf
Thanks !