4-1
SECTION 4BLOCK DIAGRAMPIN 14 = CHASSIS
3 = LO
2 = HI
1 = CHASSIS
NC
NC
NC
REMOTE
RT R
S
LT
L
C
POWER-ON
MODE SELECT
DOLBY
AUTO
MANUAL
11TO REMOTE FADER
1SELECT
FADER
CONTROL
VOLTAGE GEN
MUTE
A
19FADER
LOCAL
AND
LOGIC
SURROUND
DOLBY
MONO
22
OUTPUT
AMP
V
18
AMP
OUTPUT U
17
P501
2
3
1
CENTER
P502
2
3
1
RIGHT
AMP
OUTPUT T
16
P503
2
3
1
AMPOUTPUT15
S
SURROUND
P504
2
3
1
FLASHER
&
(CSCS FLASH)
MONO
STEREO
(LCRS FLASH)
W20LEFT
Y
CSCS
MONO
STEREO
MODE
SEQUENCER
8PSTEREO
SELECTION
J503
12DOLBY
SURROUND
C
NOISE
MONO
STEREO
LCRS
11J503
7M6REMOTE MODE SELECT
SURROUND
TRIM
LEVEL
TRIM
LEVEL
TRIM
LEVEL
TRIM
LEVEL
CAT.NO.344
LT
21
MONITOR POINTS
J503
RT
23
E
3
VCA
VCA
VCA
K
5
J503
VCA
SPKR SW
CENTER
3
H
F
2
C
L
J
4
LOOP
SWITCH
R
1
2
5
OFF
LEFT TOTAL
Z
RIGHT TOTAL
J502
2
3
1
21
VAR.
ATTEN. AMP
INPUT
4
S
SURROUND
DOLBY
DRIVER
LED
SDU4 BLOCK DIAGRAM
A3B3708 REV 2PINK
NOISE
GEN
AMP
INPUT
VAR.
ATTEN.
J501
2
3
1
(LEDS)
LEVEL
METERS
CAT. 150
10
7
14 15
4
5
6
1
SURRMONO