Kurzweil CUP2 Service Manual page 78

CUP2 Service Manual
1 2
3 4
1 2 36VAC_HI
A F5
4A, SLO-BLO, 250V
C77
4
+
.047uF,250V,20%
3 4 100PIV, 8A
1 2 36VAC_LO D1
F6
4A, SLO-BLO, 250V
B
24VRTN {3}
24V/22V_A
J501
1 4 7
32V_A 24V_A 7V_A
7V_A
2 5 8
32V_CT 24V_CT 7V_CT
3 6 9
32V_B 24V_B 7V_B
7V_B
AC LOW 24V/22V_B
F1
2A, SLO-BLO, 250V 2A, SLO-BLO, 250V
C
XP3 XP1
In Front of D1 Lower Left
GJ1
1 1
24VRTN {3}
2 2
DGND TO Chassis GND 24VRTN to AGND
1
GJ2 36VRTN {3}
1 2
2
36VRTN to AGND
AGND TO Chassis GND
D
1 2
7- 10
3
+36V {3}
C4 +
10000uF,50V
C76
.047uF,250V,20%
AC
1
- ~36V {3}
AC
10000uF,50V
C5 +
36VRTN {3}
3 4
1 2 22VAC_HI
F4
2A, SLO-BLO, 250V
J510 AC
4 1
7V_A 22V_A
4 1
+ -
5 2
7V_CT 22V_CT
6 3 AC
7V_B 22V_B
DNS
3 4 100PIV, 8A
4700uF,35V
1 2 22VAC_LO D3
C2 +
F3
24VRTN {3}
2A, SLO-BLO, 250V
F2
D2
MBR1535
7VAC_HI A1
K
7VAC_LO A2
+ C3
22000uF,16V
+15V
R1
1.5K
TL072
2 U1
-
1
GJ3 3
+
R2
1K
GJ4 D8
1N4002
R82 6 U1
-
4 7
R3
2 5
1K +
TL072
100k Trimmer Top Adjust
1N5234B
D7 R4
4.7k,5%,1/8W,MF
3
4 5
2
DNS
R123
+15V
39k,1/8W,5%
20K
R10
1 3
IN OUT
C PN2907
GND
Q13
B C E
VR1 Q12
7815 PN2222
+ C1 + C10 E
4700uF,35V 100uF,25V
2.2K
R11
~15V
2 3
IN OUT
GND
VR2
7915
100uF,25V
C11 +
IRFZ20 DNS
VCC
Q2 Q16
D S S D
R5 R6 R7
2.2K 4.7k,5%,1/8W 100
1 2 1 2 1 2
E C PWR_OK
Q1
PN2907
C6
C7
0.1uF
470pF
VCC
1 2
JP2
1K
R9 C9 +
R8 C8
330 220uF,10V
0.1uF DNS
+15V
3
IN OUT
C83
ADJ
DNS
VR3
DNS
2
DNS
DNS
R99
4 5
6 7
1
+ C103
1N5231
10uF,35V,ELEC,20%
D4
R13
2 1 UNMUTE
4.7K
R12
+15V
~15V
C23 C25
1000pf,X7R,50V 1000pf,X7R,50V 1000pf,X7R,50V
C22 C24 C26
1000pf,X7R,50V 1000pf,X7R,50V 1000pf,X7R,50V
1
2
XP7
DNS
UNMUTE 1 Upper Right
UNMUTE
2 2
+9
3
AGND
4
DGND
J1
1
R100
JP3
1
2
3
DNS
6 7
8
A
AMPUNMUTE {3}
UNMUTE {2,3}
B
JP1
INSTALL FOR TEST ONLY!!
J502
UNMUTE 8
UNMUTE
PWR_OK 7
PWR_OK
+8UNR 6
+8UNR
5
+15V
4
-15V
3
AGND
2
VCC VCC
1
C
DGND
DC POWER
C27 C29
1000pf,X7R,50V XP2
C28
1000pf,X7R,50V Middle Bottom
J513
9
FCC_SHLD
UNMUTE 8
UNMUTE
PWR_OK 7
PWR_OK
+8UNR 6
+8UNR
5
+15V +15V
4
~15V -15V
3
AGND
2
VCC VCC
1
DGND
DNS
D
YOUNG CHANG CO., LTD.
Reproduction without the express written consent
of Young Chang Co., Ltd. is prohibited.
MARK 5/10 AUDIO PCB - MARK 112 VERSION
Power Supply and Reset, MIDI
Filename: 021179D1-112 Date: 2000/09/11
Eng: By: Bob Budd
Mfg: Sht 1 of 3
Doc: 021179-01 Rev: RDV1
8