Hi,
Thanks to Andy & Jason for your feedback.
I replaced the three legged "thermistor" (actually a "posistor") with an RCA # 207768 "thermistor" and a new 4A delay fuse. So far, no "blow" after "plug in" several times following a "cool off" period.
In response to another person, the blown fuse(s) was blackened.
Brad
Before you type your password, credit card number, etc., be sure there is no active key logger (spyware) >>
>>>
>>>Hi,
>>>
>>> Philips TV model 27PT5441/37 ch L04.1UAA mfg 08/04
>>>
>>> In my shop, this TV will blow the main fuse intermittently when the TV is
>>>plugged in (when the AC cord is plugged into an outlet) . NOTE: I don't
>>>have a SM. Most times, when the TV is plugged in, the fuse doesn't blow, and
>>>the TV can be turned on and everything is "fine". Note: I had replaced the
>>>fuse with a 4A slow blow type. I checked the degaussing coil thermistor cold
>>>resistance which measures 6.6 ohms.
>>>
>>> Was this a common problem with this model TV? Was there a
>>>"fix" or modification to fix this problem?
>>
>>I have seen a LOT of recent Philips TVs with bad degaussing
>>thermistors. Eventually, they blow the fuse every time.
>>Andy Cuffe
>>
>> snipped-for-privacy@gmail.com
>
>Yes, this chassis needs many modifications.
>
>1. Pull out the deguassing resistor (white round plastic) 3 leg,
>install any 2 pin deguassing that is designed for 4A fuse, I used
>either philip's blue ones or RCA termistors that was used in same
>modification as well (for ITC008 series).
>
>2. Snip out 2 carbon resistors (both same value, and are in series)
>side to side by the flyback, install jumper in it's place.
>
>3. Install modification kit (have to look up part number for this), to
>prevent horizontal driver circuit frying. Envidenced by blackened
>horizontal driver transformer. Only about 6 dollars per kit.