[TechAssist] Re: JVC AV-27920 (D422) Zener

Ed, before you go much further on that set, check the yoke. I have had 
several of that model in the last year or two with failed yokes.

Tom

Tom Sherman
Bayside Electronics     
Digby, NS
Canada
Phone/Fax (902) 245-5375



Ed Gaidies wrote:

>Bob;
>You are absolutely correct. All were bad. But alas...still flat lined. I
>presume I have a bad new Vertical O/P IC. Although it calls for a 7832 I
>replaced it with a 7830, which I think should be OK. But seems to me I had a
>bad batch of LA7830, because I had a ?? on the bag. So I'll order the LA7832
>and give it a fighting chance.
>Thanks.
>
>-Ed-
>
>-Ed-
>
>
>
>Tel-Tek Electronics
>Ontario-Canada
>
>teltek3@xxxxxxxxxxxx
>----- Original Message ----- 
>From: "Gemini Computer & TV" <geminitv@xxxxxxxxxxx>
>To: <techassist@xxxxxxxxxxxxx>
>Sent: Friday, April 16, 2004 12:09 PM
>Subject: [TechAssist] Re: JVC AV-27920 (D422) 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) (75 volt zener)
>>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
>>geminitv@xxxxxxx
>>www.geminicomputertvsecurityalarms.com
>>
>>
>>----- Original Message ----- 
>>From: "Ed Gaidies" <teltek3@xxxxxxxxxxxx>
>>To: <techassist@xxxxxxxxxxxxx>
>>Sent: Friday, April 16, 2004 11:57 AM
>>Subject: [TechAssist] JVC AV-27920 (D422) Zener
>>
>>
>>    
>>
>>>Anyone have a value for this zener from Pin 2 of vertical Output IC?
>>>      
>>>
>Diode
>  
>
>>>is designated D422.
>>>
>>>Thanks.
>>>
>>>-Ed-
>>>
>>>
>>>
>>>Tel-Tek Electronics
>>>Ontario-Canada
>>>
>>>teltek3@xxxxxxxxxxxx
>>>
>>>
>>>      
>>>
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