THOMSON 29DMV88KH, Service Manual

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3. ALIGNMENT PROCEDURE
Chassis Name MS21-SOEM Serial No.
Issued on
2006-11-22
Page
Updated on 2007-09-11 Version
ĉ
. Summarize
˖
These model that cancels DTV function on the foundation of MS21EM, reserves the diagram text, NICAM
(note: The machine of Hong Kong only contain NICAM). Use 29" tube of ChangShaLeJin in
current(LG-PHILIPS A68QCU770XV40M),and adopt the super IC UOC3 of PHILIPS that gathers the MCU,
decode, sound effect...etc. The process of horizontal frequency and OSD module adopts the MST5C16A of
MSTAR. The OM8380H of PHILIPS is used for behind processing of display. Main function in this machine:
various mode of TV/ AV, 50P/60P/75P/75I/100I mode of PAL system, 60P/120I mode of NTSC
system,VGA640X480/60Hz(75Hz),SVGA800X600/60Hz(75Hz),XGA1024X768/60Hz(75Hz),and the HDTV
supports four kinds of modes:1920X1080I/60Hz,1920X1080I/50Hz,1280X720P/60Hz,1920X1080P/60Hz;The
SDTV supports two modes:525P,625P.
There are 2 operation modes ˖ user mode and factory mode. You can use the Remote control or buttons on
the panel to operate in user mode, but only Remote control works in factory mode.
The way to enter factory mode ˖ 1)one method:Press Ā MUTE ā button and “DISPLAY” button by turns
on RC three times. 2)another method: press Ā SERVICE MODE ā key on RC to enter the factory mode
directly. To quit factory mode ˈ press Ā SERVICE MODE ā or “MENU” button.
Ċ
. Alignment procedure
˖
Please read instruction book before operate this set, and adjust the tv set in factory as below:
1. Adjustment of B+ voltage ˖
Receive Philips standard testing pattern to RF input.
Adjust VR801 in STANDARD mode until voltage at following value ˖
Signal Picture
Mode
Adjust Point Monitor Point Value
PHILIPS Standard
Test Card
Standard VR801 The point of
J812/J813
142 f 0.3V
2. SCREEN voltage adjustment:
˄
AV2 Input gray signal
˅
Signal Picture Adjust Point Monitor Point Value
gray signal Standard
FBT SCREEN variable
Resister
Using High Voltage Probe(1000:1)to test
the SCREEN point in CRT board
0.6V
3.Focus voltage adjustment
Apply Grid signal with black background.
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