Read Sharp LC-121M2E (serv.man3) Service Manual online
7
LC-121M2E
LC-150M2E
LC-150M2E
LC-121M2E
LC-150M2E
LC-150M2E
The best adjustment is made before shipping. If any position deviation is found or after part replace is performed, adjust
as follows.
as follows.
5-1. Preparation for adjustment
(1)Use the exclusive-use AC adapter or stable DC power supply.
AC adapter: UADP-0181CEZZ
DC power supply: 12
DC power supply: 12
±
0.5V
5-2. Special mode setting procedure
(1)After initialization of E
2
PROM the mode is changed to the adjustment mode.
[Procedure]
Connect TP2007 and TP2008 to GND, and turn on the power.
[Description]
• The initialization of microcomputer is as follows.
• AV position, DAC data, G/A data, and video chroma data adjustment values are taken as defaults.
(2)Change to adjustment mode
[Procedure]
Short-circuit TP2007 to GND, and turn on the power.
Or short-circuit TP2008 to GND, and turn on the power.
Or holding down the [AV INPUT] key and [MENU] key, turn on the main power, and simultaneously press the (inspection
process) [SELECT
"
] key and [VOL– ] key to change the mode to the adjustment mode.
[Description]
The manual adjustment or adjustment through communication with the automatic machine is performed.
(3)Inspection mode
[Procedure]
Holding down the [AV INPUT] key and [MENU] key, turn on the power.
[Description]
• In the ordinary menu select “PICTURE” with the [SELECT] key, and decide with the [VOL] key. Then select
“CONTRAST”, “TINT (only NTSC)”, “COLOR”, “BLACK LEVEL”, “SHARPNESS”, “RED” , and “BLUE” with the
[SELECT] key, and decide with the [VOL] key. After that, adjust values with the [VOL] key.
• In the ordinary menu select “SOUND” with the [SELECT] key, and decide with the [VOL] key. Then, select “TREBLE”,
“BASS”, and “BALANCE” with the [SELECT] key, and decide with the [VOL] key. After that adjust values with the [VOL]
key.
• VOLUME, CONTRAST, TINT (only NTSC), COLOR, BLACK LEVEL, SHARPNESS, RED, BLUE, TREBLE, BASS,
and BALANCE change as follows.
(4)Shipping setting mode
[Procedure]
Holding down the [AV INPUT] key and [MENU] key, turn on the main power, and simultaneously press the (inspection
process) [SELECT
'
] key and [VOL+] key to change the mode to the adjustment mode.
[Description]
User adjustment and other values are taken as defaults.
If AV1 is indicated as SETTING COMPLETE, setting has been completed.
û
Min.
Û
û
Center
Û
û
Max.
Û
5. ADJUSTING PROCEDURE OF EACH SECTION
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