[TechAssist] Re: Mitsubishi Mod.# VS-50501TV is bowed on all sides. Need Schematic
- From: "Leonard Caillouet" <lcaillo@xxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Wed, 27 Jul 2005 10:43:48 -0400
Sounds like the convergence supplies are down or the conv eeprom has reset.
This manual is not in PDF form. I have the paper manual if you need it, but
for this you should not. VZ4 chassis. This is from Mits:
1. CHECK FOR -8 VDC TO THE CONVERGENCE PCB AT "VM" CONNECTOR PIN 3, IF LOW,
MISSING OR NOISEY, CHECK C936 (1000 UFD 16 V) AND C935 (100 UFD 16 V) ON THE
MAIN PCB. 2. CHECK C924 (1000 UFD 36V) AND C925 (100 UFD 50 V) IN THE -24
VOLT SUPPLY CIRCUIT ON THE MAIN PCB. 3. GO TO THE CONVERGENCE MENU (MENU 2 3
5 9) AND CHECK THE ADJUSTMENT SETTINGS FOR CONVERGENCE. IF ALL ITEMS ARE SET
AT "127". THE EEPROM SETTINGS ARE AT DEFAULT. CLEAR THE CONVERGENCE MENU AND
ACCESS THE OPTION MENU (MENU 1 3 7 0) USE THE ADJUST BUTTON TO SELECT
E2RESET AND PRESS QV. THIS SHOULD INSURE THE EEPROM IS CLEAR. AT THIS TIME
ALL ADJUSTMENTS, CONVERGENCE GEOMETRY AND CONVERGENCE SHOULD BE DONE. 4.
CHECK FOR 20 VPP VERTICAL PULSE TO PIN 9 OF THE "VJ" CONNECTOR TO THE
CONVERGENCE PCB, IF MISSING, WEAK OR DISTORTED, CHECK PULSE AT SOURCE PIN 7
OF IC401 (PUMP UP OUTPUT) ON THE MAIN PCB, IF THE PULSE IS NOT CORRECT AT
PIN 7 CHECK C402 100 UFD 50V AND IC401 PART # 270P064020. 5. Z905 IS OPEN.
CHECK FOR LEAKY D913 PART # 264P722010, OFF OF PIN 12 OF T900 (15-VOLT LINE)
ON THE MAIN PCB.
Leonard Caillouet
Electronics World
1261 NW 76 Blvd
Gainesville, FL 32606
352-332-5608
352-332-5668 fax
----- Original Message -----
From: "GERALD GANN" <alpha21century1234@xxxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Tuesday, July 26, 2005 3:55 PM
Subject: [TechAssist] Mitsubishi Mod.# VS-50501TV is bowed on all sides.
Need Schematic
Any one have a PDF schematic for Mitsubishi Mod.# VS-50501? Don't know
chassis #. This for another shop here in town. Problem is TV is bowed on all
sides. Thanks
Jerry
Alpha 21 Electronics
Granite City, IL 62040
618-452-8620
alpha21century1234@xxxxxxxxxxxxx
-----------------------------------------------------------------------------
This Email List is Public. Remove: http://www.tech-assist.org/remove.htm
Set Vacation
mailto:ecartis@xxxxxxxxxxxxx?subject=set%20techassist%20vacation
Lost Password: http://www.tech-assist.org and select "Login Problems?".
Email Archives: //www.freelists.org/archives/techassist/
--
No virus found in this incoming message.
Checked by AVG Anti-Virus.
Version: 7.0.338 / Virus Database: 267.9.4/57 - Release Date: 7/22/2005
-----------------------------------------------------------------------------
This Email List is Public. Remove: http://www.tech-assist.org/remove.htm
Set Vacation mailto:ecartis@xxxxxxxxxxxxx?subject=set%20techassist%20vacation
Lost Password: http://www.tech-assist.org and select "Login Problems?".
Email Archives: //www.freelists.org/archives/techassist/
Other related posts:
