Read Sharp LC-15B2E (serv.man2) Service Manual online
26
LC-13B2H/M
LC-15B2H/M
LC-20B2H/M
LC-15B2H/M
LC-20B2H/M
Key operation: Basically the current operating method should be used.
However the cursor key should be used. The cursor “up/down” keys are used to select an item. The
cursor “right/left” keys are used to excute the item. When the cursor key is positioned at the top, the
cursor can be moved to the top item on the previous page through manual memory input.
cursor “right/left” keys are used to excute the item. When the cursor key is positioned at the top, the
cursor can be moved to the top item on the previous page through manual memory input.
Page Item
MIN value MAX value Initial value Initial value Initial value Description
Servicing
for 13
for 15
for 20
· Basic setting - Depending on destination
1
B-ADJ
0
255
122
122
122
5V adjustment
Must not be changed.
MODEL
B2H
B2H
B2H
Model name selection
Used in initializing. Must not
be changed in other than
initializing. If it is changed,
readjustment is needed.
be changed in other than
initializing. If it is changed,
readjustment is needed.
INCH SIZE
13
15
20
Inch size selection
Used in initializing. Must not
be changed in other than
initializing. If it is changed,
readjustment is needed.
be changed in other than
initializing. If it is changed,
readjustment is needed.
NTSC PWM FREQ
0
FFF
OCO
OCO
OCO
NTSC light control frequency setting
Must not be changed.
PAL PWM FREQ
0BD
0BD
0BD
PAL light control frequency setting
Must not be changed.
NTSC PWM DUTY
0
100
0
0
0
NTSC light control duty setting
Must not be changed.
PAL PWM DUTY
0
100
0
0
0
PAL light control duty setting
Must not be changed.
TV GAIN
OFF
OFF
OFF
Auto gain setting for TV
Must not be changed.
ERROR NO RESET
0
0
0
Lamp error count and reset
Refer to lamp error detection.
PUBLIC MODE
ON
ON
ON
Public mode setting
Must not be changed.
· Video adjustment (Common bias, AGC fixed gain, White balance)
2
COM BIAS
0
255
57
39
106
Opposite bias adjustment
Refer to the adjusting method.
NTSC TAMP
0
63
24
24
21
TAMP adjustment (NTSC)
Refer to the adjusting method.
PAL TAMP
0
63
24
24
21
TAMP adjustment (PAL)
Refer to the adjusting method.
SECAM TAMP
0
63
24
24
21
TAMP adjustment (SECAM)
Refer to the adjusting method.
PAL-M TAMP
0
63
24
24
21
TAMP adjustment (PAL-M)
Refer to the adjusting method.
PAL-N TAMP
0
63
24
24
21
TAMP adjustment (PAL-N)
Refer to the adjusting method.
RCUTOFF
-15
15
-5
-5
-5
White balance adjustment (red)
Refer to the adjusting method.
The adjustment value should
be an odd number.
The adjustment value should
be an odd number.
GCUTOFF
-15
15
0
0
0
Green cutoff adjustment
Must not be changed.
BCUTOFF
-15
15
-1
-1
3
White balance adjustment (blue)
Refer to the adjusting method.
The adjustment value should
be an odd number.
The adjustment value should
be an odd number.
G3
0
FF
READ value
Must not be changed
B3
0
FF
READ value
Must not be changed
R3
0
FF
READ value
Must not be changed
G1
0
FF
READ value
Must not be changed
B4
0
FF
READ value
Must not be changed
Y
0
FF
TAMP adjustment
Refer to the adjusting method.
TAMP H
0
FF
C2
C2
CA
Higher limit value of TAMP setting
Must not be changed.
TAMP L
0
FF
B8
B8
BB
Lower limit value of TAMP setting
Must not be changed.
· Video adjustment (Contrast)
3
TV NTSC CONT
0
63
48
48
51
NTSC video setting initial value (TV)
Must not be changed.
TV PAL CONT
48
48
48
PAL video setting initial value (TV)
Must not be changed.
TV SECAM CONT
48
48
48
SECAM video setting initial value (TV)
Must not be changed.
TV PAL-M CONT
48
48
48
PAL-M video setting initial value (TV)
Must not be changed.
TV PAL-N CONT
48
48
48
PAL-N video setting initial value (TV)
Must not be changed.
AV NTSC CONT
0
63
48
48
49
NTSC video setting initial value
Must not be changed.
(composite)
AV PAL CONTRAST
48
48
48
PAL-M video setting initial value
Must not be changed.
(composite)
AV SECAM CONTRAST
48
48
48
SECAM video setting initial value
Must not be changed.
(composite)
AV PAL-M CONTRAST
48
48
48
PAL-M video setting initial value
Must not be changed.
(composite)
AV PAL-N CONTRAST
48
48
48
PAL-N video setting initial value
Must not be changed.
(composite)
AV PAL60 CONTRAST
48
48
48
PAL60 video setting initial value
Must not be changed.
(composite)
G3
0
FF
READ value
Must not be changed.
B3
0
FF
READ value
Must not be changed.
R3
0
FF
READ value
Must not be changed.
G1
0
FF
READ value
Must not be changed.
B4
0
FF
READ value
Must not be changed.
Y
0
FF
READ value
Must not be changed.
5. DESCRIPTION OF ADJUSTING PROCEDURE
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