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Bill B
 
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Default Magnavox Schematic

Does anyone have a Magnavox schematic or service manual that they would
like to sell for a Model TS2554 C101 or chassis number 25B800-7562?
I've got a loss of vertical deflection.
Thanks--------Bill
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sofie
 
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Bill B:
In the majority of repairs with the symptom you described a service manual
or schematic is rarely required.
Look for the vertical deflection chip, usually a SIP .... check for cracked
solder connections. Also check all of electrolytics with an ESR meter near
and around the chip (no ESR meter? .... just replace ALL of them... only
about 5 or 6 caps) If the chip is shorted, it will have to be replaced, in
that case look for a loss of flyback derived B+.... shorted diode, open
low-ohm resistor, etc.
For more hints and help you should go to the website for this newsgroup at
http://www.repairfaq.org/
There, with some searching, you will find a wealth of specific and relevant
information.
--
Best Regards,
Daniel Sofie
Electronics Supply & Repair
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"Bill B" wrote in message
...
Does anyone have a Magnavox schematic or service manual that they would
like to sell for a Model TS2554 C101 or chassis number 25B800-7562?
I've got a loss of vertical deflection.
Thanks--------Bill



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Bill B
 
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Default

sofie wrote:
Bill B:
In the majority of repairs with the symptom you described a service manual
or schematic is rarely required.
Look for the vertical deflection chip, usually a SIP .... check for cracked
solder connections. Also check all of electrolytics with an ESR meter near
and around the chip (no ESR meter? .... just replace ALL of them... only
about 5 or 6 caps) If the chip is shorted, it will have to be replaced, in
that case look for a loss of flyback derived B+.... shorted diode, open
low-ohm resistor, etc.
For more hints and help you should go to the website for this newsgroup at
http://www.repairfaq.org/
There, with some searching, you will find a wealth of specific and relevant
information.

Thanks for the response. I already checked the ESR of the caps around
the cable connector going to the vertical coil and they looked ok. I
checked the front to back of the diodes in the same area and they seemed
ok. I'll download the pinouts for the vertical chip and see if anything
really stands out-----it's just easier if you have the schematic and not
have to reverse engineer the darned thing.
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