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Sansui 881 tuner circuit board issue.

ctkcycle

New Member
Just started recapping a sansui 881. The tuner circuit board that is listed in the service manual and everywhere I look on line is F1507. My 881 has a different PCB all together, F 2549. I have been able to find that particular board listed as part of a model 9090. I’m curious if anyone has ever seen anything like this before. It is factory original. I understand that sansui made substitutions but this is strange. I’m new to recapping but it looks like not all of the board was used either. I will include some photos. What need is a parts list and schematic to assist with recapping. Thanks for any help.
 

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It may have be contracted out for production...might account for a different board..
I have a model 9010 which is a black face 881...
 
The 881 is a precursor/transitional unit to the 8080/9090. The F2436 driver board is very close to [if not identical] to the F2436 in the 8080/9090. The F2436 driver(s) in the QRX6001 are identical in layout but differ in installed components. The fact that your 881 has a F-2549 found in the 8080/9090 is not too unusual. The 881 is an excellent unit and a “sleeper” as it is not hyped as much as the 8080/9090.

If you are sure it’s OEM go with it. Track down a 8080/9090 service manual to compare but leave it with the OEM components installed. I used a F2436 out of a QRX 6001 to build a F2436 for a 9090 but used the parts list from the 9090 as almost all the components for the QRX 6001 F-2436 were different. The board is labeled & looks [layout] the same but the installed parts may not be the same.

Be careful of the glass protection for the tuning dial => it is glass and can break if you are not careful.
 
I'm willing to bet your 881 was built towards the end of the 881 production run. The serial number gives the production date.

- Pete
 
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