[TechAssist] Re: SONY KV-27V42 Chassis BA-4D 4 blinks on front

Clip a $2.00 2SD1879 mounted on it's own heat sink into the circuit for 
test. Monitor the collector with a scope if you have a $20,000.00 or 
equivalent Sencore. Best to blow up a 2.00 transistor than a 20.00 one.


********************************
Since 1972                     *
Jim Myers                      *
Telrad Electronics             *
Fort Wayne Indiana             *
********************************


Shaun wrote:
> This set is a scary one the h.o.t. was shorted many suggestions to why but
> the bad thing is replacement 8-729-043-43 is around $20.00 with shipping I
> am almost afraid to replace it for fear of it shorting again just my ranting
> thoughts.
> 
> Shaun
> 
> Advanced Electronics
> 224 West Riverview Ave.
> Fort Morgan, CO 80701
> ----- Original Message ----- 
> From: "tvservice" <tvservice@xxxxxxxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Wednesday, July 27, 2005 4:11 PM
> Subject: [TechAssist] Re: SONY KV-27V42 Chassis BA-4D 4 blinks on front
> 
> 
> 
>>replace cap C390 (point).47mfd50volt off base of Q501 hor drive transistor
>>Don't sub the HOT
>>Robert
>>tvservice@xxxxxxxxxxxxx
>>H & H Electronics Inc
>>
>>----- Original Message ----- 
>>From: "Shaun" <satguy@xxxxxxxxxxxxx>
>>To: "tech" <techassist@xxxxxxxxxxxxx>
>>Sent: Wednesday, July 27, 2005 11:57 AM
>>Subject: [TechAssist] SONY KV-27V42 Chassis BA-4D 4 blinks on front
>>
>>
>>
>>>This set blinks 4 times when tried to start up. I found the horz. output
>>>shorted (Q502) I am wondering if there is anything else in this set that
>>>will cause Q502 to short. I found no loose connections or bad solder.
> 
> Any
> 
>>>info would be great. Thank you.
>>>
>>>Shaun
>>>
>>>Advanced Electronics
>>>224 West Riverview Ave.
>>>Fort Morgan, CO 80701
>>>
>>
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