[TechAssist] Re: KV-27FS13 Sony (flashes 4 times)
- From: Jim Myers <jr.myers@xxxxxxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Mon, 16 Aug 2004 15:42:35 -0500
Text pasted from WinSTIPS 2.0
http://www.ServiceSoftware.com
---------------------------------------------------------------
SONY KV27FS13
Shutdown At Power Up
Disconnected 200v Line To Crt Board And Still Shuts Down. Horizontal
Output Checks Good. 135v Good. Ic-502/Pin 2 0v. Unsoldered Ic502 And
Still Shutdown And No +/- 13v. No Hv Rush At Power Up. No Hd/Vd Drive
At First Power Up. Low B From D616 Does Not Come Up At All. Found A
Transistor In Place Of D616 That Was Open. Replaced W/Correct Diode And
Unit Powered Up And Operated Normally. The Transistor That Was In Place
Of D616 Was A 2sc4370 And Did Have Original Solder Indicating This Came
From Factory This Way. Transistor Checked Open - Replaced D616
W/Originally Listed Part Number (871951037) And Unit Operated Normally.
Located Off Of T603/Pin 14 Of The Power Supply
---------------------------------------------------------------
SONY KV27FS13
Shutdown At Power Up (Immediate), 4 Blinks Of Led
Disconnected 200v Line To Crt Board And Still Shuts Down. Horizontal
Output Checks Good, 135v Good, Ic-502/Pin 2 0v. Unsoldered Ic502 And
Still Shutdown And No +/- 13v, No Hv Rush At Power Up, No Hd/Vd Drive At
First Power Up. Low B+ From D616 Does Not Come Up At All.
Found A Transistor In Place Of D616 That Was Open, Replaced W/Correct
Diode And Unit Powered Up And Operated Normally. The Transistor That Was
In Place Of D616 Was A 2sc4370 And Did Have Original Solder Indicating
This Came From Factory This Way. Transistor Checked Open. Replaced D616
W/Originally Listed Part Number (871951037) And Unit Operated Normally.
Located Off Of T603/Pin 14 Of The Power Supply.
---------------------------------------------------------------
---------------------------------------------------------------
Text pasted from WinSTIPS 2.0
http://www.ServiceSoftware.com
---------------------------------------------------------------
SONY KV27FS13
Shutdown At Power Up
Disconnected 200v Line To Crt Board And Still Shuts Down. Horizontal
Output Checks Good. 135v Good. Ic-502/Pin 2 0v. Unsoldered Ic502 And
Still Shutdown And No +/- 13v. No Hv Rush At Power Up. No Hd/Vd Drive
At First Power Up. Low B From D616 Does Not Come Up At All. Found A
Transistor In Place Of D616 That Was Open. Replaced W/Correct Diode And
Unit Powered Up And Operated Normally. The Transistor That Was In Place
Of D616 Was A 2sc4370 And Did Have Original Solder Indicating This Came
From Factory This Way. Transistor Checked Open - Replaced D616
W/Originally Listed Part Number (871951037) And Unit Operated Normally.
Located Off Of T603/Pin 14 Of The Power Supply
---------------------------------------------------------------
SONY KV27FS13
Shutdown At Power Up (Immediate), 4 Blinks Of Led
Disconnected 200v Line To Crt Board And Still Shuts Down. Horizontal
Output Checks Good, 135v Good, Ic-502/Pin 2 0v. Unsoldered Ic502 And
Still Shutdown And No +/- 13v, No Hv Rush At Power Up, No Hd/Vd Drive At
First Power Up. Low B+ From D616 Does Not Come Up At All.
Found A Transistor In Place Of D616 That Was Open, Replaced W/Correct
Diode And Unit Powered Up And Operated Normally. The Transistor That Was
In Place Of D616 Was A 2sc4370 And Did Have Original Solder Indicating
This Came From Factory This Way. Transistor Checked Open. Replaced D616
W/Originally Listed Part Number (871951037) And Unit Operated Normally.
Located Off Of T603/Pin 14 Of The Power Supply.
---------------------------------------------------------------
SONY KV27FS13
Shutdown At Power Up, 4 Blinks Of Led
Found A Transistor In Place Of D616 That Was Open, Replaced W/Correct
Diode And Unit Powered Up And Operated Normally. The Transistor That Was
In Place Of D616 Was A 2sc4370 And Did Have Original Solder Indicating
This Came From Factory This Way. Transistor Checked Open.
Replaced D616 W/Originally Listed Part Number (871951037) And Unit
Operated Normally. Located Off Of T603/Pin 14 Of The Power Supply.
---------------------------------------------------------------
*******************************************************************************************************************
Since 1972
Jim Myers
Telrad Electronics
Fort Wayne, Indiana
Kenny Barnes wrote:
> Also,(add on to last request) after flashing 4 times and shutting down,
> set continues to flash 4 times.
>
>
>
>>Date: Mon, 16 Aug 2004 15:11:34 -0500
>>To: techassist@xxxxxxxxxxxxx
>>From: Kenny Barnes <kennyb@xxxxxxxxxxxx>
>>Subject: KV-27FS13 Sony
>>
>>
>>KV17FS13 Sony,second
>>request
>>
>>Pulses 4 times. No high voltage,HOT OK.Found D513 and D514 shorted and
>>R549 open. Replaced above with Sony parts,also changed vertical IC 502,
>>D616, and D620. Both shorted. Please advise.
>
>
> Kenny Barnes
> Kenny Barnes tv
> 928 South Marshall st.
> 5154325250
> Boone, Iowa 50036
>
>
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