[TechAssist] Re: LOW HOT B+ Causes Bad PINCUSSION?
- From: Bil Green <tv.vcrrepair@xxxxxxxxxxx>
- To: tom lee <techassist@xxxxxxxxxxxxx>
- Date: Thu, 23 Oct 2003 23:32:46 -0700
After I remove the diode what would I look for?
--
Best regards,
Bil Green
2001 TV VCR
Mammoth Lakes, CA 93546
760-934-2001 mailto:tv.vcrrepair@xxxxxxxxxxx
Thursday, October 23, 2003, 12:06:47 AM, you wrote:
tl> Hi Bill.
tl> I remember I worked with a Toshiba tv a month ago.It gives me a hard time
tl> because DPC of Toshiba (dynamic pincushion circuit ?).My case is pincushion
tl> out put transistor is cool that means it does not works.May be in your case
tl> it is very hot.Check DPC.There is one way to isolate dpc is remove a diode
tl> in dpc connects to horizontal circuit .Good luck.
tl> Dang TD electronics
tl> reseda CA
tl> ----- Original Message -----
tl> From: "Bil Green" <tv.vcrrepair@xxxxxxxxxxx>
tl> To: ".TECHASSIST @ freelists . org" <techassist@xxxxxxxxxxxxx>
tl> Sent: Thursday, October 23, 2003 10:01 AM
tl> Subject: [TechAssist] LOW HOT B+ Causes Bad PINCUSSION?
>> Toshiba CF3054J
>> Chassis TAC8950
>> 30" TV
>>
>> HOT shorted (bad electro at horiz drive transformer)
>> With new HOT (same part no.) the side pincushion is way off
>> (HOT is running nice and cool).
>>
>> All electro's, diodes and transistors on the pin. board
>> check OK. Voltages are real close and Side Pin adjustment
>> works, but doesn't help.
>>
>> The 120V line is down to 114V (replacing 4.7mf and 22mf
>> caps didn't help), so I am ordering the STRS5141G.
>>
>> Has anyone seen low HOT B+ cause extremely bad pincussion?
>>
>> This set is out of town, so I want to have as much info as
>> possible in case the regulator chip doesn't fix the pin
>> problem.
>>
>>
>>
>> --
>> Best regards,
>>
>> Bil Green
>> 2001 TV VCR
>> Mammoth Lakes, CA 93546
>> 760-934-2001 mailto:tv.vcrrepair@xxxxxxxxxxx
>>
>>
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tl>
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