LC-42/46/52D85X
5 – 1
LC-42/46/52D85X
Service Manual
CHAPTER 5.
ADJUSTMENT PROCEDURE
[1] ADJUSTMENT PROCEDURE
1. Adjustment method after PWB and/or IC replacement due to repair
The unit is set to the optimum at the time of shipment from the factory. If any value should become improper or any adjustment is necessary due to
the part replacement, make an adjustment according to the following procedure.
1. Procure the following units in order to replace the main unit, IC3301, IC8101, IC3501, IC3502, IC8301, IC8302, IC8303, or IC8304.
NOTE: [Caution when replacing ICs in the main unit (IC1501/IC1502/IC1503/IC2002) or the mini av unit (IC802)]
The above ICs are EEPROMs storing the EDID data of HDMI and the monitor microcomputer. Before replacing the relevant part, procure the
following parts in which the data have been rewritten.
2. After replacing the LCD panel or LCD control PWB, check PANEL_SIZE in the following procedure.
1) Enter the process adjustment mode.
2) Use the cursor keys
/
and CH
/
of R/C to select the item [PANEL_SIZE] on the page 32/32.
3) Verify that the panel size is displayed.
4) If the size doesn't match, select the values of the panel size with the Vol +/- keys.
5) After selection in Step 4), press the ENTER key, and it is completed with OK displayed.
3. After replacing the LCD panel or LCD control PWB, adjust the VCOM in the following procedure.
1) Enter the process adjustment mode.
2) Use the cursor keys
/
and CH
/
of R/C to select the item [VCOM ADJ] on the page 9/32.
3) Press the ENTER key to verify that the adjustment pattern is displayed.
4) Use the +/- keys of VOL of L/C to adjust the flicker in the center of the screen to minimum.
5) When the optimal state is achieved in Step 4, press the ENTER key to turn the pattern to OFF.
4. After replacing LCD panel or LCD control PWB, perform the up/down brightness difference adjustment in the following procedure.
1) Enter the process adjustment mode.
2) Use the cursor keys
/
and CH
/
of R/C to select the item [LCD_LUMA_ADJ] on the page 9/32.
3) Press the ENTER key to verify that the adjustment pattern (all gray) is displayed.
4) Use the VOL +/- keys of R/C to adjust the upper/lower brightness difference in the center of the screen to minimum.
5) When the optimal state is achieved in Step 4, press the ENTER key to turn the pattern to OFF.
NOTE: LCD LUMA UD **
←
The value at the ** part is changed.
LCD LUMA DOWN 0 (Note that the value is changed if the CH
/
keys are pressed in Step 4 above.)
MAIN UNIT:
DUNTKE976FM01 (LC-42D85X)
DUNTKE976FM02 (LC-46D85X)
DUNTKE976FM03 (LC-52D85X)
IC2002
RH-IXB986WJNGQ
Monitor microcomputer
IC802
RH-IXC284WJQZS
INPUT3
IC1501
RH-IXC285WJQZS
INPUT2
IC1502
RH-IXC286WJQZS
INPUT1
IC1503
RH-IXC287WJQZS
INPUT7
Содержание AQUOS LC-42D85X
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