Sharp 14BM2 Service Manual download (Page 3 of 42)

Manual type:Service Manual
Pages:42
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Page 3 of 42
3-1
3-2
3
14BM2, 14BM2S/G
20BM2, 20BM2S/G
21BM2, 21BM2S/G
ADJUSTMENT PRECAUTIONS
This model’s setting are adjusted in two different ways: though the I
2
C bus control and in the
conventional analog manner. The adjustments via the I
2
C bus control include preset-only
items and variable data.
1.
Setting the service mode by the microprocessor.
1
Short JA122 & JA124 for 1 second and release to switch to the service mode position,
and the microprocessor is in input mode. (Adjustment through the I
2
C bus control). (Use
JWS Key to set as well).
2
Press the CH DOWN / UP key on the remote controller to get ready to select the mode
one by one.
3
Press the CH DOWN / UP key on the remote controller to select the modes reversibly
one by one.
4
Using the VOLUME UP/ DOWN key on the remote controller, the data can be modified.
5
Short JA122 & JA124 for 1 second and release to switch to the normal mode (OFF)
position, and the microprocessor is in out of the service mode.
2.
Factory Presetting.
1
Short JA122 & JA124 for 1 second and release to switch to the service mode position
and turn on the main power switch. Initial values are automatically preset, only when a
new EEPROM is used (Judge with the first 4 bytes).
2
The initial data are preset as listed in pages 4, 5 & 6.
3
Make sure the data need modify or not (Initial data).
Note:
Once the chassis has been assembly together and ready to be POWER ON for the
FIRST TIME, make sure to short JA122 & JA124 switch to the service mode posi-
tion first and then turn on the main power switch. (See 2-
1
above).
Precaution: If haven’t done this initiation, it may possibly generate excessive Beam
current.
3.
For reference please check with memory map
(UA1 Series type RH-IX3368CE Attachment)
Ë
SERVICE MODE
(1) In the Service Mode, Key is used to select the mode in the following order.
AGC &
GEOMETRIC
MODE
AGC TAKE OVER POINT (AGC)
VERTICAL SLOPE (V-LIN)
VERTICAL AMP (V-AMP)
VERTICAL SHIFT (V-CENT)
HORIZONTAL SHIFT (H-CENT)
S-CORRECTION (S-COR)
WHITE POINT
ADJ.
MODE
W.P. RED STD. W.T. (DRI-RS)
W.P. GREEN STD. W.T. (DRI-GS)
W.P.BLUE STD. W.P. (DRI-BS)
W.P. RED COOL W.P. (DRI-RC)
W.P. GREEN COOL W.P. (DRI-GC)
W.P. BLUE COOL W.P. (DRI-BC)
W.P. RED WARM W.P. (DRI-RW)
W.P. GREEN WARM W.P. (DRI-GW)
W.P. BLUE WARM W.P. (DRI-BW)
SUB
ADJ.
MODE
MAX VOLUME (SUB-VOL)
SUB CONTRAST (SUB-CON)
SUB COLOUR (SUB-COL)
SUB BRIGHTNESS (SUB-BRI)
SUB TINT (SUB-TINT)
SUB SHARPNESS (SUB-SHP)
MAX HOTEL VOLUME (HTL-VOL)
HOTEL PROGRAM NO (HTL-PRG)
OSD GRB REFERENCE (RGB)
BLACK LEVEL OFFSET R (CUT-R)
BLACK LEVEL OFFSET G (CUT-G)
CATHODE DRIVE LEVEL (CDL)
FORWARD : CH DOWN KEY
REVERSE
: CH UP
KEY
* (
)
means OSD display.
FORWARD : CH DOWN KEY
REVERSE
: CH UP
KEY
AGC &
GEOMETRIC
MODE
WHITE POINT
ADJ.
MODE
SUB
ADJ.
MODE
Y-DELAY
ADJ.
MODE
MISC.
OPTION
MODE
IC
OPTION
MODE
OFFSET
ADJ.
MODE
Sample