[TechAssist] Re: RCA F35731MB CTC169JS6 - Shuts off when signal source is connected.

Did you try unplugging the sound board?
Al Marquardt
ampm@xxxxxxx
Al Marquardt Electronic Repair
206 W Main
Girardville Pa. 17935
----- Original Message ----- 
From: "LeRoy Westlund" <llw@xxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Monday, May 30, 2005 10:03 PM
Subject: [TechAssist] RCA F35731MB CTC169JS6 - Shuts off when signal source 
is connected.


> John,
> The Hi-voltage reads 31K.
> The 200 volt source reads 191.8 volts.
> The screen reads 312 volts.( turning it down, does not help ).
> Picture Geometry is perfect. Picture is NOT bowed. Looks perfect.
>
> LLW
>
> LeRoy Westlund
> Westlund TV & Electronics
> 97 North Main                             " I forgot,..to remember,..
> Centerfield, UT 84622-0087           to forget "
> Ph./Fax  435-528-3822
> mailto:LLW@xxxxxxxxxx
>
> -----Original Message-----
> From: John @ Myers TV <myers_tv_b@xxxxxxxxxxxxx>
> To: techassist@xxxxxxxxxxxxx <techassist@xxxxxxxxxxxxx>
> Date: Monday, May 30, 2005 7:07 PM
> Subject: [TechAssist] Re: RCA F35731MB CTC169JS6 - Shuts off when
> signalsource is connected.
>
>
>>Hi Leroy,
>>
>>What is your high voltage running at? Is the picture geometry OK? not
>>bowed in or out on the sides?
>>The next thing I would do is to change the rest of the horizontal output
>>caps. Sorry, I don't have the part numbers here, but someone will
>>probably jump in with them. I think it is C4401, C4402, C4406)?
>>I'm thinking the timing of the hor output might be off.
>>
>>John Myers
>>Myers TV Service Co.
>>376 E. State St.
>>Alliance, OH 44601
>>
>>Voice / Fax: 330-821-6545
>>Myers_tv_b@xxxxxxxxxxxxx
>>http://www.myerstv.net
>>
>>Work as if you were to live a hundred years,
>>Pray as if you were to die tomorrow.
>>                           Ben Franklin
>>
>>
>>
>>
>>LeRoy Westlund wrote:
>>
>>>Hi members,
>>>This set will run all day with raster only. As soon as I hook up a signal
>>>source (Antenna, or external input), it will shut off after about 10
>>>seconds. Picture is beautiful, and all voltages from the power supply 
>>>read
>>>normal, for that length of time.
>>>When it shuts off, I have to unplug the power for at least 5 minutes,
> before
>>>my standby voltages will return.
>>>
>>>Parts replaced so far, with OEM part numbers :
>>>Regulater chopper output. (200165)
>>>Regulator IC (200419)
>>>Regulator caps. (2.2 @ 100 195691),(15 @ 63 214756),(470 @ 35 190496),(39
> @
>>>100)
>>>Horz cap (.48 @ 250 197518), CR4118 (164589), C4703 (47 @ 250).
>>>B+ cap (470 @ 180 200147).
>>>Tested luminance buffer Q2906= OK.
>>>
>>>Voltage readings:
>>>B+ = standby = 143.2 (Run = 138.2)(adjusted B+ standby for 140, no help).
>>>CR4118 = standby = 13.4 ( Run = 12.1)
>>>Voltage  Q4101-Base = standby = -.19 ( Run = -1.4)
>>>
>>>If I pull the CRT socket, set will run OK, and not shut-off.
>>>Works the same on my 27" test jig in the shop, as it does hooked up in 
>>>the
>>>home, to the original Yoke / CRT load combination.
>>>
>>>Would it be wise to replace the IFT at this stage of the game ? Customer
>>>does not want to spend more then $200 for this repair. I may need to
> refund
>>>about $100-165, that I already collected. It worked for about 1/2 hour
> when
>>>I first took it back, but, it went out again after customer already paid
> me.
>>>
>>>Anymore help on this would be appreciated.
>>>LLW
>>>
>>>LeRoy Westlund
>>>Westlund TV & Electronics
>>>97 North Main                             " I forgot,..to remember,..
>>>Centerfield, UT 84622-0087           to forget "
>>>Ph./Fax  435-528-3822
>>>mailto:LLW@xxxxxxxxxx
>>>
>>>
>>>--------------------------------------------------------------------------
> ---
>>>This Email List is Public. Remove: http://www.tech-assist.org/remove.htm
>>>Lost Password: http://www.tech-assist.org  and select "Login Problems?".
>>>Appliance Repair List:
> http://www.tech-assist.org/secure/tip/chatjoin.htm#app
>>>Email Archives: http://www.freelists.org/archives/techassist/
>>>
>>>
>>>
>>>
>>---------------------------------------------------------------------------
> --
>>This Email List is Public. Remove: http://www.tech-assist.org/remove.htm
>>Lost Password: http://www.tech-assist.org  and select "Login Problems?".
>>Appliance Repair List:
> http://www.tech-assist.org/secure/tip/chatjoin.htm#app
>>Email Archives: http://www.freelists.org/archives/techassist/
>>
>
> -----------------------------------------------------------------------------
> This Email List is Public. Remove: http://www.tech-assist.org/remove.htm
> Lost Password: http://www.tech-assist.org  and select "Login Problems?".
> Appliance Repair List: 
> http://www.tech-assist.org/secure/tip/chatjoin.htm#app
> Email Archives: http://www.freelists.org/archives/techassist/
>
> 


-----------------------------------------------------------------------------
This Email List is Public. Remove: http://www.tech-assist.org/remove.htm
Lost Password: http://www.tech-assist.org  and select "Login Problems?".
Appliance Repair List: http://www.tech-assist.org/secure/tip/chatjoin.htm#app
Email Archives: http://www.freelists.org/archives/techassist/

Other related posts: