Kurzweil K2600 Series - Backlight Inverter Board

Kurzweil K2600 Series Service Manual
7-17
Backlight Inverter Board
+
C1
25V
100uF
R3
15K
C2
25V
100uF
+
R2
15K
R4
3K
16VDC UNREG
J1
INPUT
1
2
1
2
2PIN,1ROW.,098SP
K2500R BACKLIGHT POWER SUPPLY
LM7805CTB
31
2
U2
R6
357
R1
499
R5
143
Q1
PN2222
C3
25V
100uF
+
CCFT-INV
3
1
2
U1
4
5
VIN
GND
OUT2
OUT1
GND
3
1
2
4
HI-VOLT
GND
SENSE-IN
SENSE-OUT
4PIN,1ROW,.200SP
YOUNG CHANG CO., LTD.
K2500R BACKLIGHT INVERTER
Filename:
Eng:
Mfg:
Doc#:
Date:
By:
Sht.:
Rev: C VER 1
021082C1.DS3
021082
10/4/95
H. Chamberlin
1 of 1
Duplication without the express written consent of
Young Chang Co., Ltd. is prohibited.
Young Chang R&D Inst. - Waltham, MA, USA
CBA DE
CBA DE
4
3
2
1
4
3
2
1
BKLITE
J2