6.2 ADJUSTMENT REQUIRED WHEN THE SET IS REPAIRED OR REPLACED
RGB AssyY DRIVE Assy
When repairedWhen repaired
1. Adjustment is impossible when replaced the Matrix IC or1. VOFS/VH/IC5V voltage adjustment
AD/PLL/AMP IC.2. Timing adjustment of pulse module
2. Adjustment is unnecessary in case of others.
When replaced
When replaced
1. Panel white balance adjustment
White balance adjustment
SW POWER SUPPLY Module
X DRIVE Assy
When replaced
When repaired
No adjustment required.
1. VRN voltage adjustment
2. Timing adjustment of pulse module
DIGITAL VIDEO Assy
When replaced
When repaired
1. Panel white balance adjustment
No adjustment required.
When replaced
1. Adjustment is unnecessary when replaced only the DIGITAL
Video Card (CMPAV05)
VIDEO Assy.
When repaired
2. When replaced it with RGB Assy simultaneously, remove
IC1204 (24LC04(1) SN-TBB) from the former PC Board to 1. Y LEVEL adjustment
replace, and install it to the new PC Board.2. Color difference and TINT adjustment
3. When use new Assy which replaces it and recovered as
service parts once again, replace IC1204 with new IC.When replaced
No adjustment required.
SERVICE PANEL Assy
When you replace service panel Assy
Adjustment 1: SUB-B Ground Timing AdjustmentDIGITAL VIDEO
Adjustment 2: VSUS AdjustmentAssy
All of service panels have a panel identification label (Vsus
data, Vofs data). Please just input this V-SUS data on the label SW POWER SUPPLY
Module
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
Y DRIVE
X DRIVE
Assy
Assy
RGB Assy
Video Card
(CMPAV05)
Fig. 1 PC Board Location (rear side view)
101 |
ACEC
HITACHI
