[TechAssist] Re: Toshiba CF2055A Vertical Sweep Problem
- From: walter wood <wwood_38478@xxxxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Wed, 2 Jul 2003 20:00:49 -0700 (PDT)
Most likely the NTE sub is at fault.
Sorry I don't have the schematic.
I've stopped using anything but OEM parts.
Just had too much trouble with replacements.
Walter
--- "James M. Osburn" <josbu@xxxxxxxxxxxxxxxx>
wrote:
> Hi Techs,
> This set had been worked on by another "tech" who
> returned it unfixed to the
> customer and suggested that she bring it to me.
> IC301 had been replaced with
> an NTE1684 and the 3 caps near it had been
> replaced (C305 C306 C308). C305
> was installed backwards. I removed and tested it
> and reinstalled it in the
> correct position. I found an open resistor on the
> scan derived 24v line and
> replaced it. I also found C301 near IC501 open
> and replaced it. C315 near
> IC501 checked good. I installed a new NTE1684 for
> IC301.The set still has
> insufficient sweep and the scan lines are all
> broken up. I don't have the
> schematic for this set . Can someone tell me the
> microfarad and voltage
> values for C305 C306 and C308 as well as the part
> number for IC301? Before I
> go any further I need to see if the "tech"who
> replaced these before got the
> right parts.
> Any help is greatly appreciated.
> Mark@JMAV Repair
> J.M. Audio Video Repair
> 3701 Carthage Street
> Fort Smith, Arkansas
> 72903
> (479) 646-7746
> josbu@xxxxxxxxxxxxxxxx
>
>
>
*****************************************************************************
> CHECK OUT THE NEW CHATROOM! Just login and click
> on chat!
> http://www.tech-assist.org/secure/tip/main.htm
> The Tech Address Book:
> http://www.tech-assist.org/secure/tip/contact.htm
> Add a Repair Tip Here, or Change/Remove your
> Email Address:
> http://www.tech-assist.org/secure/tip/main.htm
> Lost Password:
> http://www.tech-assist.org and select "Lost your
> Login Info?".
> Email Archives:
> //www.freelists.org/archives/techassist/
=====
Walter Wood
Future Tech Home Center
2786 Hwy. 43 N.
Lawrenceburg Tn. 38464
931-829-3337
Fax 931-829-4044
mailto:wwood_38478@xxxxxxxxx
__________________________________
Do you Yahoo!?
SBC Yahoo! DSL - Now only $29.95 per month!
http://sbc.yahoo.com
*****************************************************************************
CHECK OUT THE NEW CHATROOM! Just login and click on chat!
http://www.tech-assist.org/secure/tip/main.htm
The Tech Address Book:
http://www.tech-assist.org/secure/tip/contact.htm
Add a Repair Tip Here, or Change/Remove your Email Address:
http://www.tech-assist.org/secure/tip/main.htm
Lost Password:
http://www.tech-assist.org and select "Lost your Login Info?".
Email Archives:
//www.freelists.org/archives/techassist/
Other related posts:
