Read Sharp 37VT-26H Service Manual online
37VT-26H(GY)
10
Item-by-item control in the service mode
1. DIRECT mode
F-B/W
0 - > 1
(forced B/W)
2. DIRECT mode + HOR. POS. mode
DRV CNT
0 - > 1
(drive forced center)
SUB-BRIGHT
Initial value
R.G.B. CUTOFF
0 (E
2
PROM data resumed when any of the “0” thru
“9” keys on the remote controller is pressed)
3. R-Y Black Offset
CONTRAST
MAX
(USER-CONTROL)
BRIGHT
MAX
(USER-CONTROL)
COLOUR
CENTER
(USER-CONTROL)
R-MONITOR SW 0 - > 1
(MONITOR OUT)
MUTE MODE
Y-MUTE
4. B-Y Black Offset
CONTRAST
MAX
(USER-CONTROL)
BRIGHT
MAX
(USER-CONTROL)
COLOUR
CENTER
(USER-CONTROL)
B-MONITOR SW
0 - > 1
(MONITOR OUT)
MUTE MODE
Y-MUTE
5. SUB Tint
MUTE MODE
Y-MUTE
6. Unspecified items
PICTURE
NORMAL
(CONT. BRI. COL.)
Note :
All the settings will be back to the initial ones when shifting into any other mode or getting out of the
service mode.
service mode.
Allocation of special keys in the service mode
`
HORIZONTAL POSITION key
CONFIRM (SET -> S-PICTURE)
`
Y-MUTE KEY
SET
`
COLOUR MAX./MIN. select key
TIMER ON/OFF
`
DIRECT TUNING MODE KEY
RETURN
`
VCR SLOW TEST KEY
PROG
`
NVM MODE KEY
DISPLAY
Adjustment precautions
1) Basically follow the sequential order of adjustments.
(Unless otherwise specified, follow the adjustment procedures.)
2) The “
`
”-marked steps in the adjustment procedures are automatically taken when in the service mode. Leave
out these steps.
3) For adjustments in the service mode, it is necessary to have the remote controller at hand.
Trouble indicators
If the set is interrupted by the protectors, the following indicators work to identify a spot in trouble.
1)
1)
LED (red) flashing : Deflection system protector activated
(high-voltage or beam vert, out protector)
2) REC LED flashing
: IIC bus line error
(VCJ or tuner, EEPROM, TEXT, PDC)
3) LED off
: Power protector activated
(+B line short-circuited)
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