Emerson EWR20V4, Service Manual

Page: 25 / 91

1-10-1
BLOCK DIAGRAMS
Servo / System Control Block Diagram
E9400BLS
M
M
LOADING MOTOR
CYLINDER ASSEMBLY
SENSOR CBA SENSOR CBA
CAPSTAN MOTOR
DRUM MOTOR
PG SENSOR
CONTR
OL
HEAD
CL504
CN502
CN504
AC HEAD ASSEMBLY
MAIN CBA
KEY- 2
RF-SW
C-FG C-CONT D-PFG ST-S T-REEL C-F/R
KEY- 1
D-V SYNC
C-SYNC
V-ENV
DISPLAY-ENA CTL(+) RESET
C-ROTA
D-REC-H
D-REC-H
REC- SAF-SW PG-DELAY
A-MUTE-H
A-MUTE-H A-MUTE-H
RF-SW
D-V SYNC
C-SYNC
V-ENV
C-ROTA
END-S
IC501 (SERVO/SYSTEM CONTROL)
9
47 56
CTL
58
CTL(-)
57 28 49 69 62
3
20
27 65
18 78 64 19 41
2
24 26 66 67
LM-FWD/REV
21
D-CONT
29
(DECK ASSEMBLY)
END-S
T-REEL
T-REEL
ST-S
ST-S
Q504 Q503
Q501,Q502
RESET
Q506
SW-POINT
AL+5V
VR501
AL+5V
TP506
TP505
END-S TP507
P-ON-L
22
P-ON-L
H-A-SW
79
H-A-SW
H-A-COMP
80
H-A-COMP
46
OUTPUT-SELECT
YCA-SCL
YCA-SDA
YCA-CS
YCA-SCL
14
YCA-SDA
15
YCA-CS
16
YCA-SCL
YCA-SDA
YCA-CS
SW511
REC SW
TO VIDEO BLOCK DIAGRAM
S-DATA-OUT
S-CS
S-DATA-OUT
S-CS
8 1
S-DATA-IN
7
S-DATA-IN
S-CLK
6
S-CLK
TO SUB SYSTEM CONTROL BLOCK DIAGRAM
TO VIDEO OUTPUT SELECT BLOCK DIAGRAM TO AUDIO INPUT/OUTPUT SELECT BLOCK DIAGRAM
TO AUDIO BLOCK DIAGRAM TO Hi-Fi AUDIO BLOCK DIAGRAM
DVD-IND
71
D565
D
V
D
D564
VCR
PO
WER
CN1614
CN1613
D567
PO
WER
SW501
AL+5V
Q561 Q562
LD-SW
68
AL+12V(1)
AL+5V
VCR-IND
70
AL+5V
SW512
AL+18V P-ON+5V
LD-SW
AL+5V
D555 S-LED
TO POWER SUPPLY BLOCK DIAGRAM
IIC-BUS SCL
IIC-BUS SDA
12 13
IIC-BUS SCL
IIC-BUS SDA
NORMAL-L
59
Hi-Fi-H-SW
Hi-Fi/NOR-IN
Hi-Fi-H-SW
25
KEY SWITCH
KEY SWITCH
TP502
S-INH
M
CAPSTAN MOTOR
5
CTL(+)
6
CTL(-)
1
AL+12V(1)
2
P-ON+5V
3
C-FG
4
C-F/R
5
C-CONT
6
GND
7
LM-FWD/REV
8
D-CONT
9
D-PFG
10
GND
11
AL+12V(1)
12
AL+18V
TP513
CTL
POWER-IND
73
Q564
OUTPUT-SELECT OUTPUT-SELECT
22
KEY-1
11
POWER LED
POWER SW CBA
TO SUB SYSTEM CONTROL BLOCK DIAGRAM
DISPLAY-ENA
DISPLAY-DATA
10
DISPLAY-DATA
DISPLAY-CLK
11
DISPLAY-CLK
REMOTE-VIDEO
5
REMOTE-VIDEO