[TechAssist] Re: JVC AV27D302 part value?

  • From: Paul <dntwntv@xxxxxxxxxxxxx>
  • To: techassist@xxxxxxxxxxxxx
  • Date: Fri, 22 Jul 2005 13:02:54 -0700 (PDT)

Thanks for the heads up Bob,
                      I had replaced c424 and IC421 but it blew a hole in it at 
turn on. That's when I started looking at the ZD422. It is leaking. This is a 
bit more involved than the usual vert problem.   
That's when I decided to get the schematic.Really appreciate the info.
                                                                                
             Paul
       
Gemini Computer & TV <geminitv@xxxxxxxxxxx> wrote:
That's a 75 volt zener. See the following:

JVC Vertical Failure

You most likely have all or most of the following components defective in
that unit (these are the usual bad components with vertical IC failure in
these JVCs) so you better check or replace them all:

IC421 (part# LA7832)
D422 (part# MTZJ75-T2)
D541 (part# RGP10J-5025-T3)
R541 (1.8 ohm, 2 watt)
C424 (100mfd/35v)
C425 (470mfd/35v)


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: "Paul" 
To: 
Sent: Friday, July 22, 2005 3:32 PM
Subject: [TechAssist] JVC AV27D302 part value?


Till the circuitwork is repaired maybe someone could give me the value of
Zener diode D422. It may be D1422 in the parts list. TIA.
Paul

Paul ,B
Central TV&Video
911W Grand Ave
Grover Beach Ca.
(805)481-8084

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Paul ,B
Central TV&Video
911W Grand Ave
Grover Beach Ca.
(805)481-8084

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