Hitachi Director's P60X901, Service Manual

Page: 46 / 143

45
ADJUSTMENTS TABLE OF CONTENTS
1 Adjustment procedure start up....................................................................................................46
1.1 How to get into adjustment mode ................................................................................46
1.2 Changing data and selecting adjustment code............................................................46
2 Memory initialize ........................................................................................................................46
2.1 Memory initialize operation ..........................................................................................46
2.2 Factory and service adjustments ................................................................................47
3 Video Adjustment .......................................................................................................................47
3.1 Sub-Contrast & Clamp Adjustment ........................................................................................47
4 White balance adjustment ..........................................................................................................48
4.1 Video Color Temperature Adjustment (High) ...............................................................48
4.2 Video Color Temperature Adjustment (Medium)..........................................................48
4.3 Video Color Temperature Adjustment (Standard) ........................................................49
4.5 White Balance Adjustment OSD Flowchart Diagram ..................................................... 50
5 DIGITAL MAIN CHECK ............................................................................................................49
6 SCREEN CHECK .....................................................................................................................52
7 HDMI Adjustment ..................................................................................................................... 52
8 Factory Reset ........................................................................................................................... 52
TO GO TO A SECTION, CLICK ON ITS HEADING BELOW
DW3U
9 Settings for Delivery .............................................................................................................. 53
If it becomes necessary to replace the Power Supply PWB HA02001, the Vs and Va voltage
pots MUST be placed in the CENTER of their rotation. Adjustments will be made Automatically.
CN99
Pin 1 Va
Pin 3 Gnd
Pin 2 Vs
Vs Adj
Va Adj
Heat Run Full White
1 Minute before Adjustment
The Logic PWB will make the
appropriate Vs/Va adjustments
shortly after power on.
Center the Pot
Center the Pot
VR380
VR580
VR651 should be adjusted to the point when CNPPS connector Pin 13, 14 or 15 voltage is 13 V (+/-0.4V).
If the pots VR251 or VR151 are accidentally moved, please read below.
VR251 should be adjusted at the point when CNPPS connector Pin 1, 2 or 3 voltage is 5.4 V (+/- 0.0).
VR661 should be adjusted to the point when CN64 connector Pin 3 or 4 voltage is 5.1 V (+/-0.255V).
or CN68 connector Pin 10 or 11 voltage is 5.1 V (+/-0.255V).
If VR251, VR651 or VR661 is
accidentally moved, see below.
4.4 Video Color Temperature Adjustment (B/W ) ...............................................................49