Read Sharp LC-37GA9EK (serv.man6) Service Manual online
17
LC-26GA5E
LC-32GA5E
LC-32GA9E/LC-32BV9E
LC-37GA9E/LC-37BV9E
4 Special Features
- ERROR STAND-BY CAUSE (Page 1/11)
When the unit enters standby due to operational error, total time before the error and the cause of error is recorded
on EEPROM, if possible. The values can be used to locate the fault for repair.
- EEP CLEAR (Page 10/11)
Restore NVM data to default values.
- EEP CLEAR B (Page 10/11)
Restore NVM data to default values except adjustment data.
5 Video Signal Adjustment Procedure
The adjustment process mode menu is listed in Section 3.
5.1. Signal check
Signal generator level adjustment check (Adjustment to the specified level).
- Composite signal PAL
: 0.7Vp-p ± 0.02Vp-p (Pedestal to white level)
- 15K Component signal
: Y level
0.7Vp-p ± 0.02Vp-p (Pedestal to white level)
(50Hz) (576i/50Hz)
PB, PR level
0.7Vp-p ± 0.02Vp-p
Page Line Item
Description
Remarks (Adjustment detail, etc.)
[ETC]
10/11
1
2
3
4
5
6
7
8
9
EEP CLEAR
EEP CLEAR B
STAND BY CAUSE RESET
AUTO INSTALLATION SW
OPTION
COUNTRY
L ERR RESET
L ERR STOP
I2C-OFF
OFF/ON
OFF/ON
OFF/ON
0/1
0
AUTO
0
0/1
ENTER
Restore NVM data to default values
Restore NVM data to default values except
adjustment data
Clearing of standby cause error list
0: unfinished 1:finish (The setting takes effect
the next time the power is turned on.)
AUTO: defects the actual region.
Lamp error counter
Stops Lamp Error feature (Not operative)
BUS STOP
LCD
11/11
1
2
3
4
5
6
7
OSC FREQ 50
OSC FREQ 60
PWM FREQ 50
PWM FREQ 60
PWM FREQ
PWM DUTY
PWM CTRL
144
144
1
1
424
227
0
5.2. Entering the adjustment process mode
Enter the adjustment process mode according to Section
1.
5.3. RF AGC Adjustment
LC-26P50E
LC-32P50E
LC-37P50E
29
6. Special features
`
ERROR STANDBY CAUSE (Page 1/12)
When the unit enters standby due to operational error, total time before the error and the cause of error is
recorded on EEPROM, if possible.The values can be used to locate the fault for repair.
When the unit enters standby due to operational error, total time before the error and the cause of error is
recorded on EEPROM, if possible.The values can be used to locate the fault for repair.
`
EEP SAVE (Page 12/12)
Storage of EEP adjustment value.
Storage of EEP adjustment value.
`
EEP RESTORE (Page 12/12)
Retrieval of EEP adjustment value from storage area.
Retrieval of EEP adjustment value from storage area.
7. Video signal adjustment procedure
* The adjustment process mode menu is listed in Section 5.
(1) Signal check
Signal generator level adjustment check (Adjustment to the specified level)
» Composite signal
: 0.714Vp-p ± 0.02Vp-p (Pedestal to white level)
» Composite signal PAL
: 0.7Vp-p ±0.02Vp-p (Pedestal to white level)
» RGB signal
: 0.7Vp-p± 0.02Vp-p
» 15K component signal : Y level
0.7Vp-p±0.02Vp-p (Pedestal to white level)
(50 Hz)
PB, PR level
0.7Vp-p ±0.02Vp-p
» 33K component signal : Y level
0.7Vp-p ± 0.02Vp-p (Pedestal to white level)
PB, PR level
0.7Vp-p ±0.02Vp-p
(2) Entering the adjustment process mode
Enter the adjustment process mode according to Section 3.
(3) RF AGC adjustment
Adjustment point Adjustment conditions
Adjustment procedure
1
Setting
[Signal]
PAL
Field Color Bar
RF signal UV
[Terminal]
TUNER
PAL
Field Color Bar
RF signal UV
[Terminal]
TUNER
2
Auto adjustment Adjustment process page 3
performance
performance
»
Feed the PAL color bar signal (E-12ch) to TUNER.
Signal level: 52
Signal level: 52
±
1 dB µV (75� LOAD)
Bring the cursor on [ËRF AGC ADJ] and press [OK].
[ËRF AGC ADJ OK] appears when finished.
[ËRF AGC ADJ OK] appears when finished.
[E-12CH]
�100% white
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