Yamaha DSP-A5 Service Manual page 34

A B
I SCHEMATIC DIAGRAM [INPUT (1/2)]
Q Q
1
3 7 6 3 1 5 1 5 0
PHONO (MM) EQ AMP
11.0
0
0
0
AUDIO
SIGNAL
2
0
0
0
–10.6
1
MAIN L
3
2
IN
3
(PLAY)
4
4 OUT
(REC)
T E
L 1 3 9 4 2 2 9 6 5 1 3
5
6
IN
OUT
7
MUTING
OUTPUT
SUB
WOOFER 0
-11.4
0
w w w
8
.
C D
E
TO DSP #6 page E-51/J-49 L-4
MAIN L MAIN L
(DSP)
MAIN/CENTER/LFE/FRONT AMP
CENTER
23.1
0
0.1
0
0.1
0.1
0.1
–23.2
LFE
FRONT L
INPUT
SELECTOR
MAIN LEVEL
CONTROL
MAIN L
0
11.4
0
0 0
0
0 0 0 0 0 0 0 0 0 0
0
0
0
0
0 0 0 0
0 0 0 0 0 0
0
0 0
0
0
–11.0
x a o
y
i
: NOT USED
IC BLOCK→See page E-49/J-47
PIN CONNECTION DIAGRAM→See page E-49/J-47
G
http://www.xiaoyu163.com F
TO INPUT(5) W103
page E-49/J-47 D-2
TO POWER(1) #401 page E-53/J-51 A-2
MAIN L
(DSP)
0
0 0
0 0 CENTER
0.1 0.1
0.3 0
0
0
FRONT
L
0
23.0
0
0
0 0 0 0
0 0
0
0
0
0 0
0
0 0
0 0
23.0
0
REAR L
0 0
0
0 0
0
0 0
0 –23.1
0 0
0
0
0
MAIN L 0
Q Q
3 7 6
(DSP)
0
0
0.1
0
0 0.1
0 –23.1
6-CH SELECTOR
u 1 6 3 TO OPE(1) #501 page E-50/J-48 A-5
TO DSP #3 page E-51/J-49 B-8
.
http://www.xiaoyu163.com
H I
2 4 TO OPE(3) #581
8 9 9
page E-50/J-48 H-5
MAIN L
CENTER/LFE/REAR
SPEAKER LEVEL CONTROL
REAE L
–11.5
0
0
0
0
0
0
12.0
REAE L
CENTER
–11.5
0
0
0
CENTER
0
0
0
12.0
LFE
EX PANSION
•
IC107: BU2090→See page 22(EX),20(J)
LFE
3 1 5 1 5 0 8 9 2
m
c o
Conditions (DSP-A5)
→ CD
• INPUT
→ minimum(–∞)
• VOLUME
• IMPEDANCE
→ Left
SELECTOR
• PRO LOGIC → On
J K
DSP-A5
2
8 9 9
–10dB CONTROL
DRIVE
4.9
4.9
–11.4
MUTING
0 0
MAIN
0 0
–11.4 –11.4
L
0 0
0
0
–11.4
–11.4
–11.4 –11.4
0 0 0
–11.4
0 0 0
LIMITTER
CONTROL
DRIVE
I/O
4.9
4.9
0
4.9
4.9
0
4 9 8 2 9 9
All voltages are measured with a 10M Ω /V DC electric volt meter.
#
# Components having special characteristics are marked and
must be replaced with parts having specifications equal to those
originally installed.
# Schematic diagram is subject to change without notice.
E-48/J-46