[TechAssist] Re: Philips TV Mod. 27PT6442 CHas. L04.1U AA, Noise lines, interference
- From: "Gemini Computer & TV" <geminitv@xxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Tue, 15 Mar 2005 07:44:21 -0500
Sounds like you may have 2 problems. The first deals with the open line fuse
(see the following):
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
Second, the noise lines you describe sound exactly like one I just had which
turned out to be a bad flyback.
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: "Wally Heise" <sirepair@xxxxxxxxxx>
To: "Tech Assist" <techassist@xxxxxxxxxxxxx>
Sent: Monday, March 14, 2005 11:48 PM
Subject: [TechAssist] Philips TV Mod. 27PT6442 CHas. L04.1U AA, Noise lines,
interference
> Hello,
>
> Philips Mod. 27PT6442, Chassis L04.1U AA
>
> Symptom: Came in dead, (AC line fuse barely melted); now have squiggly
> noise lines running across the middle 4-6 inches of the crt,
(horizontally).
> These lines will disappear after 5-10 minutes of operation. The video is
> OK, just moving back & forth. I have tried freeze spray to make it act up
> again, no help, it generally shows up after TV has been powered down for a
> few minutes. I have also moved all cables thinking it was interference,
> this doesn't seem to help. Can not find anything that caused the fuse to
> blow, another 4 amp seems to hold just fine.
>
> Anybody seen this or have any ideas? Is this Force 32 download that is
> being discussed, free to repair shops?
>
> Thanks for any assistance.
>
> Wally Heise
> South Isle Repair
> Isle, Mn.
> sirepair@xxxxxxxxxx
>
>
>
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