[TechAssist] Re: proj tube question
- From: "Wayne Vanaman" <Wayne@xxxxxxxxxxxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Wed, 16 Jul 2003 14:39:34 -0500
Hi Terry:
I will assume (you know what that means) that you are talking about the
atc311 chassis.
I think this is normal operation. It looks like the LED is lite when the
thing is cut off.
This is the set procedure:
Screen Control Adjustments:
1. Apply a 0 IRE Flat Field pattern (TP2) to the Component
Video Input (Y, PR, PB).
2. Make certain the preheat and preset conditions have been
met.
3. Enter the serviceman menu using the front panel buttons
by pressing simultaneously "MENU" and "CHANNEL
DOWN" . Use "VOL UP" to place the "V:" value to
"76". When a parameter is specified use "CH UP" or
"CH DN" to change to the correct parameter number,
then use "VOL UP" or "VOL DN" to change the value
of the paramter.
4. Set all three screen controls on the focus/screen assembly
to minimum (full CCW). If any or all colors of the
On Screen Display are badly out of focus, the individual
screen control for those colors will need to be turned
back up until they regain focus.
5. Set Red Cutoff (P:12) to V:32.
6. Set Green Cutoff (P:13) to V:32.
7. Set Blue Cutoff (P:14) to V:32.
8. Set Brightness Offset (P:15) to V:127.
9. Set Red Drive (P16) to V:64.
10. Set Uni-Color (Green Reference - P:17) to V:64.
11. Set Blue Drive (P18) to V:64.
12. Set AKB (P:19) to V:2.
13. Making certain the 0 IRE Flat Field pattern (TP2) is still
displayed, observe the LED's located on the kine boards
on the neck of the CRT's. Adjust the red, blue and green
screen controls to light all three led's. The goal is to have
all three led's full on.
DO NOT ADJUST THE SCREEN CONTROLS AGAIN
AFTER THIS STEP!!!
Wayne Vanaman
Omega Electronics
6904 W Fairfield Dr
Pensacola, Fl. 32506-3310
Wayne@xxxxxxxxxxxxxxxxxxxxx
WWW.PensacolaTVRepair.Com
850-456-5995 voice
850-458-6369 fax
----- Original Message -----
From: "Terry Joseph Hutchison" <sony1@xxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Wednesday, July 16, 2003 10:35 AM
Subject: [TechAssist] proj tube question
> On the RCA projection sets, the little green led on the crt module. If
> it lites or blinks on and off while set is running does that signify a
> short or failling tube? Thanks Terry
>
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