[TechAssist] Re: panasonic tv mod:- CT32G22: chassis:-ANPEDP282:- Dead
- From: Jim Myers <jr.myers@xxxxxxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Wed, 17 Nov 2004 10:22:15 -0500
VCC pin on IC001 is 22 and should be 5 volts, also pin 61 VDD. Q002 and
Q003 is the 5 volt regulator circuit, regulated from 12 volt standby.
The 8 volts you have on the relay should be 12 volts standby developed
from the standby transformer T001 and D001, C022 470uf/16v is the 12
volt standby filter. Sounds like something is loading both the 12V and
the 5V. Need more info just ask. The manual I am looking at is not exact
but any variations should be minor.
*******************************************************************************************************************
Since 1972
Jim Myers
Telrad Electronics
Fort Wayne, Indiana
gordon elder wrote:
> Yes there is a about 8V relay drive.what i'm not getting is the switching
> signal coming from the uprocessor.I'm getting approx 3V for what i believe to
> be the 5v Vcc and i will try to trace that to its source today.
> Gemini Computer & TV <geminitv@xxxxxxxxxxx> wrote:I hate to ask the obvious
> but do you have relay drive (or the 12 volt relay
> Vcc)? Those relays are infamous for bad connections on the coil side of the
> relay.
>
> Bob Waterman, CET® #RI-28
> Master Technician License #9109
> Service Manager / Parts Manager
> Gemini Computer, TV, & Security Alarms
> (508)695-7302
> (508)695-7769 FAX
> geminitv@xxxxxxxxxxx
>
>
> ----- Original Message -----
> From: "gordon elder"
> To: "Tech-Assist"
> Sent: Monday, November 15, 2004 9:56 AM
> Subject: [TechAssist] panasonic tv mod:- CT32G22: chassis:-ANPEDP282:- Dead
>
>
>
>>Hi
>>Hi this set came in dead, there is no relay click.The processor is
>
> MN1873265T7G, I would like to find the Vcc pin.The switching voltage from
> the power switch is 0.5v.
>
>>
>>Gordon Elder
>>
>>Audio video Technician,
>>
>>Lewis Satellite
>>
>>Shadowed lawn,
>>
>>Brittons Hill,
>>
>>Barbados.
>>
>>
>>
>>---------------------------------
>>Do you Yahoo!?
>>Check out the new Yahoo! Front Page. www.yahoo.com
>>
>>
>>--------------------------------------------------------------------------
>
> ---
>
>>Lost Password:
>>http://www.tech-assist.org and select "Login Problems?".
>>Email Archives:
>>//www.freelists.org/archives/techassist/
>>
>
>
>
>
> -----------------------------------------------------------------------------
> Lost Password:
> http://www.tech-assist.org and select "Login Problems?".
> Email Archives:
> //www.freelists.org/archives/techassist/
>
>
>
>
> Gordon Elder
>
> Audio video Technician,
>
> Lewis Satellite
>
> Shadowed lawn,
>
> Brittons Hill,
>
> Barbados.
>
>
> __________________________________________________
> Do You Yahoo!?
> Tired of spam? Yahoo! Mail has the best spam protection around
> http://mail.yahoo.com
>
>
> -----------------------------------------------------------------------------
> Lost Password:
> http://www.tech-assist.org and select "Login Problems?".
> Email Archives:
> //www.freelists.org/archives/techassist/
>
-----------------------------------------------------------------------------
Lost Password:
http://www.tech-assist.org and select "Login Problems?".
Email Archives:
//www.freelists.org/archives/techassist/
Other related posts:
