JBL DSC 1000 Service Manual - page 36
5
5
4
4
3
3
2
2
1
1
D
D
C
C
B
B
A
A
amber
amber
mute
unmute
unmute
mute
Standby
Work
Blue
Amber
blue
blue
BLUE
AMBER
VOLUME CONTROL
pin9 logic:
controlled by
main power
switch.
NA
NA
NA
pin8 logic:
1242C
2.4
DSC1000 FRONT PANEL 041005
B
14
22
Tuesday, November 30, 2004
Title
Size
Document Number
Rev
Date:
Sheet
of
Harman Kardon, Northridge, California 91329, USA
AMUTE
MUTE
IR_IN
VOL-
VOL+
VOL+
VOL-
standby
RES
IR_OUT
STANDBY
MCU-CLK
+5VDD
DGND
+5VDD
DGND
+5VDD
+5VDD
DGND
+VDD
+5VDD
DGND
DGND
+5VDD
DGND
DGND
+5VDD
DGND
DGND
DGND
DGND
DGND
3R
31
4.
7k
3J1
1
2
IN
OUT
3C16
22PF
3Y1
4M
3R9
4.7K
3R25
4.7k
3R26
4.7k
3R27
4.7k
3C17
22PF
3R3
4.7k
3R36
4.7k
3Q5
8550
3
2
1
3Q2
8050
3R4
1K
3Q3
8050
3R1
10K
3R2
10K
3CB2
2.2uF
+
3C2
47u
3IR1
IR
1
2
3
VCC
GND
IR
3R10
4.7K
3R7
470R
3R11
300R
3LD1
STANDBY
3CB1
104
3K3
Stop
1
2
3
4
3R5
15K
3K4
Prev
1
2
3
4
3D9
1N4148
1
2
3CB3
104
3K6
Display
1
2
3
4
3K2
Play
1
2
3
4
3U1
PIC16C56A
1
2
3
4
5
6
7
8
9
17
18
10
11
12
13
14
15
16
RA2
RA3
T0CKI
MCLK/VPP
VSS
RB0
RB1
RB2
RB3
RA0
RA1
RB4
RB5
RB6
RB7
VDD
OSC2/CLKOUT
OSC1/CLKIN
3K1
Open/close
1
2
3
4
3K5
Next
1
2
3
4
3Q1
8550
3
2
1
3R12
1K
3Q4
8550
3
2
1
3R
35
4.
7k
3R
34
4.
7k
3R16
NA
3R8 NA
+
3C5
100uF/16V
3LD2
STANDBY
3CB6
104
CON1
1
2
3
GN
D
VOL-
VOL+
3R38
100R
3J2
1
2
IN
OUT
3R40
0R
3J41
0R
3R42
0R
3J43
0R
3C24
820PF
3C23
820PF