Delco cassette deck.....clicks
Donna
Am working on a Delco cassette/fm radio with a no play symptom.
Customer says it will rew and ff OK, but it only clicks in the play
mode. So far I cannot see any physical problem with the unit. I have
replaced the main belt but am unable to check if this was the culprit
as I don't know the pins to connect B+ to.
This is model # 16129961. Can someone tell me which pin(s) I should
connect to? Also if the clicking still is present after I find out
what pins to connect to, is there anything else I can do to repair
this tape deck?
Thanx, Donna
Tedd Doda
In message <363c95ee...@news.usnetway.com> - had...@usnetway.com (Donna)
writes:
:>> Am working on a Delco cassette/fm radio with a no play symptom.
:>>Customer says it will rew and ff OK, but it only clicks in the play
:>>mode. So far I cannot see any physical problem with the unit. I have
:>>replaced the main belt but am unable to check if this was the culprit
:>>as I don't know the pins to connect B+ to.
The multi wire connection from the main unit to the cassette unit
is long enough for you to leave it connected and test the unit.
Only thing you have to add is a ground connection from the chassis
of the radio to the cassette unit. Great for cleaning the capstains!
:>>This is model # 16129961. Can someone tell me which pin(s) I should
:>>connect to? Also if the clicking still is present after I find out
:>>what pins to connect to, is there anything else I can do to repair
:>>this tape deck?
Some units use a gear train to power the auto-reverse mechanism. Check to
make sure those are turning as required. Most cases though, the main belt
it the problem.
Tedd Doda, CET
packet va3sed@va3sed ******* Running FBB under Warp Ver4
e-mail ve3...@rac.ca** Running the IAK in Warp Ver4
[Team OS/2 in Canada]
Steve Helling
but another frequent cause of this problem in some Delco tape decks is a
part called a 'pulse generator'. It is a gear behind the reels which has an
alternating pattern of black and shiny surfaces facing an
LED/phototransistor pair. The shiny surfaces have a tendency to loose their
luster, and the black surface may flake off. Either way, it can cause the
unit to constantly sense an end-of -tape condition and autoreverse. The
solution is to replace the part.
Some decks use a miniature magnetic reed switch adjacent to a magnetic ring
on the back of each reel. I haven't seen those fail much though.
Hope this helps.
Steve H.
Tedd Doda wrote in message ...
Plexaglass
small belt broken or missing...or...some units used an optical sensor for the
a/r circuit. You may need to check that. Let me know if I can help you
anymore. Delco used to be fun to work on, but now it's a different story. No
support for small shops as they provided once.
Walter
dwmu...@worldnet.att.net
>Hi guys,
> Am working on a Delco cassette/fm radio with a no play symptom.
>Customer says it will rew and ff OK, but it only clicks in the play
>mode. So far I cannot see any physical problem with the unit. I have
>replaced the main belt but am unable to check if this was the culprit
>as I don't know the pins to connect B+ to.
>This is model # 16129961. Can someone tell me which pin(s) I should
>connect to? Also if the clicking still is present after I find out
>what pins to connect to, is there anything else I can do to repair
>this tape deck?
>
>Thanx, Donna
Hello Donna, Your 16129961 radio should have a 16170367 cassette deck
in it. You can leave the deck hooked up to the radio and supply a
ground wire to the main deck plate so you can run it to see it work.
2 things to check: 1) look at the top side where the cassette sits
and you should see a brass lever up between the reels towards the tape
head. make sure this is not jammed. If it is, you will need to check
for debris blocking the plates and clear it.
2) there is a holding switch 1224872 that is
located on the bottom / outside of the reels that is actuated by a
white plastic lever. sometimes this switch will go bad, you can move
it slightly and see if the tape reels engage and run normal. if the
switch is bad you should replace it.