Fig. 30 - Display Backlight Inverter Board; Fig. 31 - Display Backlight Inverter Board - York MAXE OPTIVIEW YK Service Instructions Manual

Display Backlight Inverter Board
UPPER
500 - 1500 VAC
BACKLIGHT
LAMP
N.C.
1 2
CN3
CN1
CN2
1 2
N.C.
LOWER
500 - 1500 VAC
BACKLIGHT
LAMP
NOTES:
1. ON = 0VDC; OFF = +12VDC. Refer to Microboard Program Jumpers JP3 & JP4.
2. 0 - +2.5VDC. 0VDC = MAX (100%) Brightness; +2.5VDC = MIN (0%) Brightness.
Refer to Fig. 10 and Microboard Program Jumpers JP7 & JP8.
3. Refer to Microboard Program Jumper JP5.
4. N.C. = No Connection.
FIG. 30 – DISPLAY BACKLIGHT INVERTER BOARD (SHARP LQ10D421)
500 - 1500 VAC
BACKLIGHT
LAMP GND
1 2
CN2
CN1
CN3
NOTES:
1. ON = +5VDC; OFF = 0VDC. Refer to Microboard Program Jumpers JP3 & JP4.
2. 0 - 10K Ohms. 0 Ohms = MIN (0%) Brightness; 10K Ohms = MAX (100%) Brightness.
Refer to Fig. 10 and Microboard Program Jumpers JP7 & JP8.
3. Refer to Microboard Program Jumper JP5.
4. N.C. = No Connection.
FIG. 31 – DISPLAY BACKLIGHT INVERTER BOARD (NEC NL6448AC33-24)
58
DISPLAY BACKLIGHT INVERTER BOARD
TYPE: XENTEK LS520
3
PART NUMBER: NOT AVAILABLE
FOR: SHARP LQ10D421 DISPLAY
+12VDC (NOTE 3)
1
+12VDC (NOTE 3)
2
GND
3
GND
4
BACKLIGHT ENABLE (ON/OFF) (NOTE 1)
5
BRIGHTNESS CONTROL WIPER (NOTE 2)
6
BRIGHTNESS CONTROL ( - ) (GND)
7
3
DISPLAY BACKLIGHT INVERTER BOARD
TYPE: NEC 104PWBR1
3 PART NUMBER: NOT AVAILABLE
FOR: NEC NL6448AC33-24 DISPLAY
+12VDC (NOTE 3)
1
+12VDC (NOTE 3)
2
GND
3
GND
4
5 N.C.
BACKLIGHT ENABLE (ON/OFF) (NOTE 1)
1
BRIGHTNESS CONTROL WIPER (NOTE 2)
2
BRIGHTNESS CONTROL ( - ) (NOTE 2)
3
INVERTER CABLE
(NOT AVAILABLE)
INVERTER CABLE
(NOT AVAILABLE)
FORM 160.54-M1(503)
J6
1
2
3
MICRO
4
BOARD
5
6
N.C.
7
8
N.C.
9
N.C. 10
LD04072
J6
1
2
3
MICRO
4
BOARD
5
6
7
8
N.C.
N.C. 9
N.C. 10
LD04073
YORK INTERNATIONAL