Sony SLV-ED100ME, Service Manual

Page: 69 / 135

SL
V
-ED100/EZ2000/K990/KH9
4-59
4-60
VR-74 (MIC/ECHO/PHONE LEVEL) PRINTED
WIRING BO
ARD AND SCHEMA
TIC DIA
GRAM
– Ref. No.:
VR-74 board; 3,000 series –
MIC/ECHO/PHONE LEVEL
VR-74
There are f
e
w cases that the par
t isn't mounted in this model is pr
inted on this diag
ram.
RF-46 (KH9) (RFMOD)
TU-170 (EXCEPT
KH9)
(TUNER, SIF)
RJ-84 (ED100/EZ2000) (ADDITIONAL
REAR IN/OUT)
SR-36 (SURROUND)
KR-33 (K990/KH9) (KARAOKE)
Power Block (HS-028SF) (POWER SUPPL
Y)
MA-361
VIDEO,
AUDIO, I/O,
SER
VO/SYSTEM CONTROL
(
)
FL-1
10
MODE CONTROL, IN/OUT
()
VR-74 MIC/ECHO/PHONE LEVEL
()
MJ-93 (ED100/EZ2000) MIC IN/HEADPHONE, MIC/HEADPHONE
AMP
MJ-94 (K990/KH9) (MIC IN, MIC
AMP)
()
FR-165 (MODE CONTROL)
SW
-329
(ROT
AR
Y
SWITCH)
NK-1
1 (ED100/EZ2000Y)
(NICAM) GK-12 (EZ2000S/K990) (ZVEI T
ONE)
25V 22u
C467
*
RV451
1k
R456
10k
RV450
22k
R455
0.1u
F
C451
220k R451
2SD601A-QRS-TX
Q450
0.1u
F
C450
1u
F
C455
17P
CN450
1
MIC
2
AGND
3
WL/HP IN L
4
AGND
5
ECHO LEVEL/HP IN R
6
AGND
7
MIC2
8
MIC1
9
AGND
10
HP OUT R
11
AGND
12
HP OUT L
13
AGND
14
A-8V
15
AGND
16
A+9V
17
AGND
1k
R457
22k
R453
10k
RV452
4700
R452
25V 22u
C460
0
JS452
0
JS456 JS463
0
JS460
0
JS453
0
JS458
0
JS459
0
R458
0
R459
1
A
ECHO
6
VR-74 BOARD
234
5
D C B
05
B+
MIX AMP
SIGNAL
PB
SIGNAL P
A
T
H
AUDIO
B-
NO MARK:REC/PB MODE
RV451 MIC VOL 2 PHONE LEVEL
:K990/KH9
:ED100/EZ2000
7
-1.3
9.2
-1.9
K990/KH9
K990/KH9
ED100/ EZ2000
K990/KH9
ED100/ EZ2000
K990/KH9
RV451
10k/10k:ED100/EZ2000
10k:K990/KH9
MIC VOL 1
:K990/KH9
MJ-94 BOARD
CN431
(SEE P
AGE 4-55)
(SEE P
AGE 4-58)
CN401
MJ-93 BOARD
:ED100/EZ2000