Sharp 21F-PA330I Manuale di servizio - Pagina 3

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Sharp 21F-PA330I Manuale di servizio

ADJUSTMENT PRECAUTIONS

This model's setting in two different ways: through the I2C bus control and in the convention analog manner.
The adjustments via the I2C bus control include preset - only items and variable data.
CAUTION: Make sore TV set in "Normal condition" before swich to Service Mode for adjustment.
1. Setting the service mode by the microprocessor.
(1).
Setting the service mode by the microprocessor to set the TV set to SERVICE mode position, and the
microprocessor is in input mode. (Adjustment trough the I2C bus control).
(2).
Press the MENU key on the remote controller to get ready to select the mode (Adjustment mode,
Setting mode, Check mode and Option mode) one by one.
(3).
Press the CH DOWN/UP key on the remove controller to select the item in Adjustment mode or Option
mode.
(4).
Using the VOLUME UP/DOWN key on the remote controller, the data can be modified. Please wait
approximately 200 msec for data storage in EEPROM before select to another mode.
(5).
In check mode the data cannot be changes.
(6).
Press the SERVICE key agian, it will swich to the NORMAL mode position, and the microprocessor is
out of the SERVICE mode.
2. Factory Presetting.
Power ON the set, press the SERVICE key on the remote controller, then press both CH UP and
(1).
VOL UP button on the set simultaniously for 5 secs. Intial values are automatically preset, only when
a new EPROM is used.
The inital data are preset as listed in page 5-1 to 7-1.
(2).
(3).
Make sure the data need modification or not (Initial data)
Precaution: If haven't done this initialization, it may possibly generate excessive Beam cerrent.
3. For reference please check with memory map RH - IXB225WJZZ (See attachment)
Note:
Presetting SERVICE mode (MANUAL)
(1).
Short JA301 & JA410, then TV set will switch to the service mode position, and the
microprocessor is in input mode. (Adjustment through the I2C bus control)
(2).
Press the MENU key on the remote controller to get ready to select the mode (Adjustment
mode, Setting mode, Check mode and Option mode) one by one.
(3).
Press the CH UP/DOWN key on the remote controller select the item in Adjustment mode,
Setting mode and Option mode.
(4).
Using the VOLUME UP/DOWN key on the remote controller, the data can be modified.
Please wait approximately 200 msec for data storge in the EEPROM before select to
another mode.
(5).
In check mode the data can not be changed.
(6).
Disable the short of JA301 & JA410, it will switch to the normal mode (OFF) position, and
the microprocessor is out of the sevice mode.
3-1
ADJUSTMENT ITEM
**Below are the adjustment items the should be done, PLS FOLLOW THE PROCEDURE. Otherwise
some adjustment items will not be accurate.
NO ***
ADJUSTMENT ITEM
1
BUS SETUP
2
OPTION SET UP
3
H - VCO
4
VIF - VCO
5
S - TRAP fo
6
RF - AGC
7
PURITY ADJ
8
CONVERGENCE ADJ
9
FOCUS ADJ
10
V - SHIFT (50 Hz)
11
H - SHIFT (50 Hz)
12
V - SIZE (50 Hz)
13
SCREEN
14
WHITE BALANCE
15
SUB - BRIGHTNESS
16
SUB - CONTRAST
17
BEAM CURRENT CHECK
18
SUB - TINT
19
SUB - COLOR
20
BEAM PROTECTOR CHECK
21
HV PROTECTOR CHECK
22
OTHER PROTECTOR CHECK
23
AV OUT CHECK
24
AV IN CHECK
25
COMPONENT IN CHECK
26
CONTRAST CONTROL CHECK
27
COLOR CONTROL CHECK
28
BRIGHTNESS CONTROL CHECK
29
TINT CONTROL CHECK
30
SHARPNESS CONTROL CHECK
31
CH DISPLAY COLOR CHECK
32
NORMAL DISPLAY CHECK
33
WHITE TEMP CONTROL CHECK
34
COLOR SYSTEM CHECK
35
SURROUND CHECK
36
TREBLE CHECK
37
BASS CHECK
38
BALANCE CHECK
39
SOUND SYSTEM CHECK
40
NOISE MUTE CHECK
41
OSD LANGUAGE QUANTITY CHECK
42
HEAD PHONE CHECK
43
BILINGUAL FUNCTION CHECK
44
SHOCK TEST CHECK
45
ROM CORRECTION CHECK
EFFECTIVE MODEL
REVISION
21F-PA330I
3-2