___ Sony Cass. Goes SL0wwerrrr TC-K730ES
 

It's a house deck, single cassette, non-reversing. Big and heavy, Circa
1992. As it warms up when first switched on, it runs normal for a few
seconds, then gets slower and slower, then automatically shuts off. The
circuit board where the open stators are mounted has been attacked by a
(possibly human) service person, and many SMT resistors and caps
shuffled around. The speed control chip is hidden inside the capstan
flywheel when assembled, and I haven't been able shoot it with
freeze-it. (I'll try it with the whole drive module removed from the
faceplate)

Anybody seen this problem? It's a great (looking) deck, and I'd like to
get it working....I can provide pictures of the previous (soldering)
carnage.

motsco

Very often, this type of thing can be caused by the power supply section.

--

Jerry G.
=====

"motsco_ _" "motsco_ wrote in message
...
It's a house deck, single cassette, non-reversing. Big and heavy, Circa
1992. As it warms up when first switched on, it runs normal for a few
seconds, then gets slower and slower, then automatically shuts off. The
circuit board where the open stators are mounted has been attacked by a
(possibly human) service person, and many SMT resistors and caps
shuffled around. The speed control chip is hidden inside the capstan
flywheel when assembled, and I haven't been able shoot it with
freeze-it. (I'll try it with the whole drive module removed from the
faceplate)

Anybody seen this problem? It's a great (looking) deck, and I'd like to
get it working....I can provide pictures of the previous (soldering)
carnage.

motsco

Jerry G. wrote:
Very often, this type of thing can be caused by the power supply section.


-------------------------

That's what I'm thinking. I think the messy soldering is just a red
herring. The PLAY solonoid doesn't seem to engage when it warms up
either. What kind of voltages should I be seeing on the output of the
supply board on this kind of tape deck?

motsco

motsco_ _ wrote:
Jerry G. wrote:

Very often, this type of thing can be caused by the power supply section.
-------------------------

That's what I'm thinking. I think the messy soldering is just a red
herring. The PLAY solonoid doesn't seem to engage when it warms up
either. What kind of voltages should I be seeing on the output of the
supply board on this kind of tape deck?

motsco

---------------------------
Is there a link where I can find the schematic for this tape deck? Once
I know which voltages are wrong, I'll have a lot more to go on. Thanks