JBL PSW-D112, Руководство по обслуживанию

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33
Amplifier/Subwoofer
PSW-D112/DPS-12
PWS-D112/DPS-12
PREAMP
SCHEMATIC
Rev1
U1
U2 U1
LM324
U1
LM324
R16
38k3
C9
68n
C8
68n
C7
0r Jump
R15
Not Used
R17
169k
R14
68k1
R35
137k
R13
33k2
R9
2k7
C5
220pF
C3 220pF
C2
200uF
C1
200uF
8
10
9
++
++
----
----
++
++
R27
604r
R34
20k
R24
604r
R32
20k
R28
20k
C19 330pF
C18 330pF
R10
20k
R11
68k
C6
220p
R Out
L Out
R In
GND
L In
R6
R5
R4
R3
100k
R8
2k7
C4
220pF
Phase Switch
SPDT
LEVEL
5k LOG
R12
45k3
U2
TLO 64
U2
TLO 64
C17
47nF
C16
47nF
C15
47nF
C14
47nF
High Level In
RCA Connector
High Level Out
R30
604r
R26
604r
R33
20k
R31
20k
1
3
2
2
3
1
R18
6k8
R20
6k8
U1
20k Lin #1
20k Lin #2
U2
C10
100nF
C12
100nF
C13
100nF
C11
100nF
R21
Not Used
R19
6k8
R22
6k8
R23
Not Used
LP DEF
Not Used
20k Lin #3
20k Lin #4
13
12
14
13
14
12
3
2
1 7
6
5
6
5
7
8
10
9
1
3
2
1
2
3
1
2
3
4
5
6
7
8
9
11
12
10
R1
4k7
R2
4k7
+15V
-15V
C21
100nF
C20
100nF
C23
100nF
C22
100nF
+15V
GND
GND
SIG
-15V
mute
To/From
PWRAMP
R25
20k
Control
20K HP POT
20k Lin #1
20K HP POT
20k Lin #2
20K HP POT
20k Lin #3
20K HP POT
20k Lin #4 RCA
Connector
++
++
----
----
++
++
Vol A
GND
Vol B
ADJ. 2nd Order HI-PASS LINE LEVEL O/P
Remote
Volume Control
CONNECTOR
HI-PASS / EQ
2nd Order LO-PASS 2nd Order LO-PASS
LINE LEVEL
1 2
J3
0-R Jumper
1 2
J2
NOT USED
1
2
J1
JUMPER
To Pin 4 U1/U2
To Pin 11 U1/U2
PWS-D112/DPS-12
Schematic
PREAMP Rev1
5 5
4 4
3 3
2 2
1 1
A
A
B
B
C
C
D
D
E
E
F
F
G
G