Hitachi CMP5000WXE User m, Service Manual

Page: 85 / 158

6.2 ADJUSTMENT REQUIRED WHEN THE SET IS REPAIRED OR REPLACED
RGB Assy
When repaired
When replaced
White balance adjustment
DIGITAL VIDEO Assy
When repaired
No adjustment required.
When replaced
SW POWER SUPPLY Module
When replaced
No adjustment required.
1. Adjustment is unnecessary when replaced only the DIGITAL
VIDEO Assy.
2. When replaced it with RGB Assy simultaneously, remove
IC1204 (24LC04(1) SN-TBB) from the former PC Board to
replace, and install it to the new PC Board.
3. When use new Assy which replaces it and recovered as
service parts once again, replace IC1204 with new IC.
1. Adjustment is impossible when replaced the Matrix IC or
AD/PLL/AMP IC.
2. Adjustment is unnecessary in case of others.
Y DRIVE Assy
When repaired
When replaced
1. VOFS/VH/IC5V voltage adjustment
2. Timing adjustment of pulse module
X DRIVE Assy
When repaired
When replaced
1. VRN voltage adjustment
2. Timing adjustment of pulse module
Video Card ( CMPAV05 )
When repaired
When replaced
No adjustment required.
1. Y LEVEL adjustment
2. Color difference and TINT adjustment
1. Panel white balance adjustment
1. Panel white balance adjustment
101
Fig. 1 PC Board Location (rear side view)
DIGITAL VIDEO
Assy
X DRIVE
Assy
Video Card
(CMPAV05)
Y DRIVE
Assy
RGB Assy
SW POWER SUPPLY
Module
SERVICE PANEL Assy
When you replace service anel Assy
Adjustment 1: SUB-B Ground Timing Adjustment
Adjustment 2: VSUS Adjustment
All of service panels have a panel identification label (Vsus
data, Vo
f
s data). Please just input this V-SUS data on the label
to "V-SUS" on REF-DIG of service factory mode by remote
control.
(Please refer to the page 78 of S/M)
Adjustment 3: VOFS Adjustment
Please just input the V-OFS data on the label to "V-OFFSET"
on REF-DIG of service factory mode.
(Please refer to the page 78 of S/M)
Adjustment 4: Panel White Balance Adjustment
p