32" Sony Trinatron audio volume dies as it heats up

It's the sbx1637 board. Check Mat Electronics for this part. It is on a stand up board off of the main chassis. Ocassionally a board is defective right out of the bag so, if the first one doesn't solve the problem, try another. Chuck

This is an AA-1 chassis...does use the typical SBX1637 like the 32TS35 set.

There is an SBX type module inside the tuner but you cannot replace it.

You'll more than likely need a new tuner.

But first try this.......run the set with a VCR hooked up to the A/V jacks....if the audio stays OK using this method then the tuner is at fault.

New tuners are pricey...you can get a rebuilt from

for $27.00 shipped. You just need to return your dud to them or they will charge a $27.00 core fee.

Description: TUNER (BTF-WA402) Core/DUD Value: $0.00 WAS 859825410 Total Price: $77.00 EA Vendor: SONY Suggested Retail: $98.78 EA On Hand: INVENTORY AVAILABLE IN MARYLAND AND FLORIDA ETA: FOR IMMEDIATE SHIPMENT

PO # or Notes: Quantity to Order:

Substitute Items Available Below

To order a substitute part, click on the item number. Item Number On Hand Your Price Retail 859825451 ( SONY) INVENTORY NOT AVAILABLE AND CANNOT BE ORDERED $70.00 $77.00

859825440 ( SONY) INVENTORY NOT AVAILABLE AND CANNOT BE ORDERED $70.00 $77.00

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==========================
Jeff Stielau
Shoreline Electronics Repair
344 East Main Street
Clinton,CT 06413
860-399-1861
860-664-3535 (fax)
jstielau@snet.net
========================

 wrote in message 
news:1132975555.230751.243670@f14g2000cwb.googlegroups.com...
> My nieghbor gave me a 32" Sony KV-32TS36 manufactured 1993. He tossed
> it because the volume would fade out as it stayed on longer (assuming
> as it heats up)
>
> Does anybody know what part this could sounds like? I'm a lay person to
> electronics repair but have had success on this group years ago
> soldering something on another TV found on the street.
>
> Thanks
> Henry
> 


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