46" Zenith PTV model:PVY4661DT chassis:GZ
John Del
>From: sidn...@yahoo.com (Sidney)
>Date: 4/30/03 7:11 PM Eastern Daylight Time
>Message-id: <fecdbb87.03043...@posting.google.com>
>
>46" Zenith PTV model:PVY4661DT chassis:GZ,year:April
and I
>would like to know who in Canada would have the Zenith module for a
>lot less money THAT WORKS if not who in the USA would have a new or
>refurbished module THAT WORKS and does not require mine (the
>customer's) as a core (DUD).Thanks.
These have removable lightboxes, and we always rebuild the 1674s in shop with
excellent success. As far as buying the 1674 outright, they typically have 25%
failure rate (even from LG).
John Del
Wolcott, CT
"Nothing is so opportune for tyrants as a people tired of its liberty."
Alan Keyes
(remove S for email reply)
Alan Harriman
>46" Zenith PTV model:PVY4661DT chassis:GZ,year:April
>1997,module:9-1674-01 (old #),module:9-1674-03R (new #).Originally one
>day the picture began to shrink on all four sides then the picture
>disappeared and all that was left was three horizontal lines (one
>red,one green,one blue)and the audio and tuner was still present but
>no vertical deflection.The customer still has the tv in his house but
>before he brings it in I would like to know what parts are defective
>and where to get them.
>From all of the research I did on the internet I learned that these
>are common repair tips for this model/chassis with this problem:
Definitely check R3243 (110k 1/2w), also check R3244 (82k 1/2w) for
any change in value. Inspect the board for poor solder connections.
(Also be sure to check the 120K resistors on the CRT boards)
One quick check to test the bleeder ass'y, unplug and measure the
resistance across connector 4F. Should read between 48K and 55K. If
higher or lower than those values, the bleeder is usually bad.
Since the customer is bringing the set in, you have the luxury of
ordering parts as necessary and avoiding multiple trips to the home.
Alan Harriman
>
>A)Complete main module # 9-1674-01 subbed to new # 9-1674-03R=$250 CDN
>(LG Electronics)
>
>OR:
>
>B)TX3200=Flyback # 95-4134-15/31=might be subbed to 95-4480=$65 CDN
>(LG Electronics)
>C)QX3200=HOT # 121-1167-01=$14 CDN (LG
>Electronics)=2SD1539=2SD2578=RCA # 242224=Philips # 4835 130
>48074=NTE2302=ECG2302
>D)CRX3412=115V B+ rectifier diode # 103-417-07/06A=$4 CDN (LG
>Electronics)=NTE580=ECG580
>E)CX3412=115V B+ rectifier filter capacitor=100Uf,200V
>F)R3243=110/120 K ohm,1/2W (off the HOT's collector) found underneath
>a 3 watt resistor
>G)Bleeder focus assembly/HV tripler block # A-17196-12/05=$168 CDN (LG
>Electronics)
>
>Other common failures for PVY4661DT as well as PVY4665RK and PVY5263
>which have the same chassis:GZ:
>
>Bad solder connections in bridge and SMPS
>R3429=open=dead set
>IC3415 & IC3402=Defective=dead set
>120 K ohm resistors on crt driver boards module 9-1303
>
>I would like to know which parts are defective on the customers unit
>from the above common repair tips before he brings the unit in and I
>would like to know who in Canada would have the Zenith module for a
>lot less money THAT WORKS if not who in the USA would have a new or
>refurbished module THAT WORKS and does not require mine (the
>customer's) as a core (DUD).Thanks.
>
>
>For free downloadable service manuals,schematics,repair tips,EEPROM
>service mode access and lots of other goodies:
>
>http://the-hideout.net/techtalk/phpbb2/index.php
Jack
"Sidney" <sidn...@yahoo.com> wrote in message
news:fecdbb87.03043...@posting.google.com...
> 46" Zenith PTV model:PVY4661DT chassis:GZ,year:April
> 1997,module:9-1674-01 (old #),module:9-1674-03R (new #).Originally one
> day the picture began to shrink on all four sides then the picture
> disappeared and all that was left was three horizontal lines (one
> red,one green,one blue)and the audio and tuner was still present but
> no vertical deflection.The customer still has the tv in his house but
> before he brings it in I would like to know what parts are defective
> and where to get them.
> From all of the research I did on the internet I learned that these
> are common repair tips for this model/chassis with this problem:
>