[TechAssist] Re: FIX Mitsubishi VS-55707, VZ8 chasssis. dead,push power, double click

  • From: becyn <becyn@xxxxxxxxxx>
  • To: techassist@xxxxxxxxxxxxx
  • Date: Thu, 12 May 2005 11:55:13 -0400

Did either one of you lovebirds verify  if this is a
fast recovery type? Using a slow diode in a SMPS secondary might
run hot  and eventually fail as you mention.

Jim McVey
McVey Alltronix   
327 Broadway
Newburgh N.Y. 12550

"If it doesn't play...
CALL MCVEY !!!!!!"
Factory authorized
service for over 20
major brands.
845 561 8383
(Last of the Mohegans)

tvservice wrote:

>WOW
>you kiss long and hard! ;>)
>My customer said it just went out while watching
>no apparent reason, it does run hot but mine still running
>Robert
>tvservice@xxxxxxxxxxxxx
>H & H Electronics Inc
>
>
>----- Original Message ----- 
>From: "Phil Bader" <tjanphyl@xxxxxxxxxxxxxxx>
>To: <techassist@xxxxxxxxxxxxx>
>Sent: Thursday, May 12, 2005 8:46 AM
>Subject: [TechAssist] FIX Mitsubishi VS-55707, VZ8 chasssis. dead,push
>power, double click
>
>
>  
>
>>Come here,Robert...I'm gonna kiss ya!
>>That diode was the fix. I didn't have any of the ones you mentioned, but
>>found another Mits PTV diode that looked exactly like it: FMLG16 which
>>also crossed to your NTE598, also a fast 8 amp device. The set looks good.
>>For the record, D971 was a # 264P794010 / HERA806G.
>>Seems to cross to NTE598 (600V  Vrrm,600V Vrwm, Aver. rectified forward
>>current: 8A)
>> Do you think this was a result of a surge?
>>Phil Bader
>>
>>Philip Bader
>>Jan Phyl TV Inc. (estab. 1976)
>>3420 Recker Hwy. Winter Haven, Fl. 33880
>>Fax (863) 299-8821
>>email: tjanphyl@xxxxxxxxxxxxxxx
>>
>>
>>
>>tvservice wrote:
>>
>>    
>>
>>>Yes D971 was only part needed
>>>been running all day
>>>I used a Samsung #0402-001230 generic FMG-G2CS
>>>I had in stock
>>>NTE598 will work
>>>Robert
>>>tvservice@xxxxxxxxxxxxx
>>>H & H Electronics Inc
>>>
>>>
>>>----- Original Message ----- 
>>>From: "Phil Bader" <tjanphyl@xxxxxxxxxxxxxxx>
>>>To: <techassist@xxxxxxxxxxxxx>
>>>Sent: Wednesday, May 11, 2005 12:18 PM
>>>Subject: [TechAssist] Re: Mitsubishi VS-55707, VZ8 chasssis. dead,push
>>>power, double click
>>>
>>>
>>>
>>>
>>>      
>>>
>>>>Yes! My D971 is shorted. Was this your complete fix?
>>>>Thanks.
>>>>Phil Bader
>>>>
>>>>Philip Bader
>>>>Jan Phyl TV Inc. (estab. 1976)
>>>>3420 Recker Hwy. Winter Haven, Fl. 33880
>>>>Fax (863) 299-8821
>>>>email: tjanphyl@xxxxxxxxxxxxxxx
>>>>
>>>>
>>>>
>>>>tvservice wrote:
>>>>
>>>>
>>>>
>>>>        
>>>>
>>>>>Check diode D971 on the +130 volt source for short
>>>>>It's a 8 amp rectifier mounted to heatsink
>>>>>Number on it is HERA806G Mits# 264P794010
>>>>>just fixed this same problem last night.
>>>>>Robert
>>>>>tvservice@xxxxxxxxxxxxx
>>>>>H & H Electronics Inc
>>>>>
>>>>>----- Original Message ----- 
>>>>>From: "Phil Bader" <tjanphyl@xxxxxxxxxxxxxxx>
>>>>>To: <techassist@xxxxxxxxxxxxx>
>>>>>Sent: Tuesday, May 10, 2005 4:00 PM
>>>>>Subject: [TechAssist] Mitsubishi VS-55707, VZ8 chasssis. dead,push
>>>>>          
>>>>>
>power,
>  
>
>>>>>double click
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>          
>>>>>
>>>>>>Customer said months ago there was a power surge (or interruption) at
>>>>>>their home. When power restored, TV stayed off. Power company said no
>>>>>>way it was their fault.(yeah).
>>>>>>All fuses I find OK. Main AC fuse OK, FC902 (2A GMA) ,FC903 (4A GMA),
>>>>>>F904(6.3A GMA).
>>>>>>Has 5.01 VDC at I/R det diode sensor. Has +12VDCs. Nothing looks
>>>>>>damaged.Push power button on remote, power relay does a quick
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>            
>>>>>>
>>>>>double-click.
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>          
>>>>>
>>>>>>I unplugged the removable anode from top of flyback that goes over to
>>>>>>seperate HV divider block, no help. Both HOT power transistors OK:
>>>>>>            
>>>>>>
>Q5A00
>  
>
>>>>>>and Q5A02.
>>>>>>Downloaded  a few tips... "heck pin 20 IC700 (AC off) for 0 volts. If
>>>>>>high leaky diode D980" Volts are zero, so thats OK.Never hear any
>>>>>>HV,just double relay click.
>>>>>>Nothing in my emails.
>>>>>>Phil Bader
>>>>>>
>>>>>>-- 
>>>>>>
>>>>>>Philip Bader
>>>>>>Jan Phyl TV Inc. (estab. 1976)
>>>>>>3420 Recker Hwy. Winter Haven, Fl. 33880
>>>>>>Fax (863) 299-8821
>>>>>>email: tjanphyl@xxxxxxxxxxxxxxx
>>>>>>
>>>>>>
>>>>>>
>>>>>>            
>>>>>>
>>>>-------------------------------------------------------------------------
>>>>        
>>>>
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