Sharp XG-PH70X - XGA DLP Projector, Service Manual

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XG-PH70X/XG-PH70X-N (1st. Edition)
3 – 1
XG-PH70X
Service Manual
CHAPTER 3.
ELECTRICAL ADJUSTMENT
[1] ELECTRICAL ADJUSTMENT
– Turn on the power (lamp on state) and wait for 15 minutes for aging.
– Enter the adjustment process mode with S3602 (tact switch) on the main board.
In case that top cabinet covered S3602, you can enter by pushing key continuously in sequence.
* You can exit from factory mode by same method. (Or select "EXIT" in the process mode to exit.)
– Select the group to adjust with the DOWN key or the UP key, and enter the adjustment item with the ENTER key on the remote control or key pad.
– Select the adjustment item with the DOWN key or the UP key.
– Use the LEFT key or the RIGHT key for adjustment.
– To return from the adjustment item to the adjustment group, use the UNDO key or the MENU key.
– Change internal test pattern and input signal with the MUTE key
key pad On -> Up -> Down -> Up -> Down -> Enter -> Enter -> Menu
Remote controller On -> Vol up -> Vol down -> Vol up -> Vol down -> Enter -> Enter -> Menu
No. Adjusting point Adjusting conditions Adjusting procedure
1 Initialization of
EEPROM 1. Turn on the power (the lamp lights
up) and warm up the system for 15
minutes.
2. Select the following group and
subject.
Group : SSS
Subject: S2 1. Press S3602 to enter the process mode.
2. Execute the S2 command on the SSS menu.
* With the S2 command, all the circuit boards than the PC board will be ini-
tialized.
NOTE: Since the PC I/F unit is initialized with S1, do not carry out S1.
The PC I/F unit is already adjusted.
When the PC I/F unit must be adjusted, in such case as S1 is carried
out by mistake, adjust it according to the "PC I/F adjustment method"
at the end of this document.
3. Wait approximately 30 seconds and when "INPUT1" appears, turn off the
power.
4. After all the fans stop, turn the power back on.
2 Write MAC
address 1. Read a sticker which is written mac address on main board.
2. Write MAC address by 232c serial cable. (For the procedure, refer to the
attachment.)
3 Adjustment of
CW index 1. Signal input: 64 STEP color bar
signal.
2. Select the following group and
subjects.
Group : DLP
Subject : CW-INDEX 1. Feed the signal to INPUT 1.
2. Select subject and make adjustment so that the uniformity should be
smooth.
4 Adjustment of
DLP voltage 1. Read voltage rank of DLP
description.
2. Select the following group and
subjects.
Group : DLP
Subject : DMD-BIN 1. Adjust DMD-BIN corresponding to the rank which has been read. (on the
main board)
Rank / setting value
B / 0
C / 1
D / 2
E / 3
* Carry out adjustment when DLP chip or PC board has been replaced
5-1 Adjustment of
Video brightness 1. Select the following group and
subject.
Group : VIDEO
Subject : BRIGHT 1. Check that the value is 115.
5-2 Adjustment of
Video contrast 1. Select the following group and
subject.
Group : VIDEO
Subject : PICTURE-SUB 1. Check that the value is 157.
R
G
B