[TechAssist] Re: fix? Philips / Magnavox 27PT6441/37 , L04.1UAA dead, AC fuse blows at plug in
- From: Phil Bader <tjanphyl@xxxxxxxxxxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Mon, 09 May 2005 17:38:00 -0400
Per Bob Waterman: good informative post:
Symptom:
Dead set. Open AC line fuse, 1500. Replacement may blow again.
CLUE If degaussing coil is unplugged fuse blows will stop.
Cause:
Current parameters of degauss resistor and degauss coil
Resolution:
Remove degauss resistor 3523 (white rectangle) and replace using location
3507 with service code 2122 663 00019, a 3 ohm PTC resistor. Give close
attention to the marking on the CBA for 3507.
Applies To:
26PW6341/37, 27MS6341/37, 27PT5441/37, 27PT6441/37, 27PT6442/37,
30PW6341/37, 32MS6341/37, 32PT5441/37, 32PT6441/37, 32PT6442/37, L04.1U AA
Symptom:
After replacing Degauss Thermistor (PTC) 3523 with 3507 as 212266300019,
the
fuse 1500 continues to open.
Cause:
The wrong fuse is being used.
Resolution:
Use only fuse part number 242208610914. This is a special time lag fuse
and
is a safety part.
Applies To:
25PT6341/85, 26PW6341/37, 27MS6341/37, 27PT5441/37, 27PT6441/37,
27PT6442/37, 28PW6341/85, 29PT6441/44, 29PT6441/85, 29PT6541/44,
29PT6541/85, 30PW6341/37, 32MS6341/37, 32PT5441/37, 32PT6441/37,
32PT6442/37, 32PW6341/85, 33PT5441/85, L04.1U AA
Will advise my results.
Philip Bader
Jan Phyl TV Inc. (estab. 1976)
3420 Recker Hwy. Winter Haven, Fl. 33880
Fax (863) 299-8821
email: tjanphyl@xxxxxxxxxxxxxxx
Gemini Computer & TV wrote:
>That is correct Phil. I am the one who posted that.
>
>Bob Waterman, CET® #RI-28
>Master Technician License #9109
>Service Manager / Parts Manager
>Gemini Computer, TV, & Security Alarms
>(508)695-7302
>(508)695-7769 FAX
>geminitv@xxxxxxxxxxx
>
>
>----- Original Message -----
>From: "Phil Bader" <tjanphyl@xxxxxxxxxxxxxxx>
>To: <techassist@xxxxxxxxxxxxx>
>Sent: Wednesday, May 04, 2005 10:31 AM
>Subject: [TechAssist] fix? Philips / Magnavox 27PT6441/37 , L04.1UAA dead,
>AC fuse blows at plug in
>
>
>
>
>>I put a "?" next to fix because I haven't actually fixed it yet, but as
>>the copied thread below describes,I unplug the ADG plug, replace 4A GMA
>>fuse again and set powers up OK, fuse does not blow. So, it is an ADG
>>issue: See email from my archives:
>>
>>Symptom:
>>Dead set. Open AC line fuse, 1500. Replacement may blow again.
>>CLUE If degaussing coil is unplugged fuse blows will stop.
>>
>>
>>Cause:
>>Current parameters of degauss resistor and degauss coil
>>
>>Resolution:
>>Remove degauss resistor 3523 (white rectangle) and replace using location
>>3507 with service code 2122 663 00019, a 3 ohm PTC resistor. Give close
>>attention to the marking on the CBA for 3507.
>>
>>Applies To:
>>26PW6341/37, 27MS6341/37, 27PT5441/37, 27PT6441/37, 27PT6442/37,
>>30PW6341/37, 32MS6341/37, 32PT5441/37, 32PT6441/37, 32PT6442/37, L04.1U AA
>>
>>Symptom:
>>After replacing Degauss Thermistor (PTC) 3523 with 3507 as 212266300019,
>>
>>
>the
>
>
>>fuse 1500 continues to open.
>>
>>Cause:
>>The wrong fuse is being used.
>>
>>Resolution:
>>Use only fuse part number 242208610914. This is a special time lag fuse
>>
>>
>and
>
>
>>is a safety part.
>>
>>Applies To:
>>25PT6341/85, 26PW6341/37, 27MS6341/37, 27PT5441/37, 27PT6441/37,
>>27PT6442/37, 28PW6341/85, 29PT6441/44, 29PT6441/85, 29PT6541/44,
>>29PT6541/85, 30PW6341/37, 32MS6341/37, 32PT5441/37, 32PT6441/37,
>>32PT6442/37, 32PW6341/85, 33PT5441/85, L04.1U AA
>>Will advise my results.
>>Phil Bader
>>
>>
>>
>>
>>
>>Philip Bader
>>Jan Phyl TV Inc. (estab. 1976)
>>3420 Recker Hwy. Winter Haven, Fl. 33880
>>Fax (863) 299-8821
>>email: tjanphyl@xxxxxxxxxxxxxxx
>>
>>
>>
>>Phil Bader wrote:
>>
>>
>>
>>>Came in dead. The main GMA 4A AC fuse was black/blown.The PS FET reg
>>>nor the HOT shorted. Both OK. Diodes,bridge,etc all seem OK. I replaced
>>>the main fuse, plugged set in. Heard one hum of the ADG coil, and the
>>>fuse blew again. Is there any issues with a shorted ADG (degaussing)
>>>circuit shorting?
>>>Phil Bader
>>>
>>>
>>>
>>>
>>>
>>--------------------------------------------------------------------------
>>
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