Mitsubishi Electric HS-U449, Service Manual

Page: 69 / 76

B-4
Q5A5
Q5A3
C5A0
BACKUP
37 34 85
STBY5
2
DEMO
3
Z5A0
Photo-recepter
14
REMO
79
80
SU-SENS
TU-SENS
PRT
29
Q5A0 Q5A1
Supply
Sensor
Take Up
Sensor
Protect of Power
(SW5,SW9)
PWSV Vcc
63
32
17
16
5
9
4
CP-REV
PC1
O-L
O-UL
RIS
SS
ES
IC5A4
Q5A7
Q5A6
9
1
7
3
PCB-MAIN
Q5A2
REC Inhibit
SW5
STBY5
2
1 LM
Loading
Motor
M571
ML
Mode SW
PC0 : Q5A8
PC1 : Q5A9
PC2 : Q5B0
CP-REV
CP-M-V
5
6
4
7
3
5
4 4
3
5
1
MC DC
7
Drum
Motor
CP-OUT
CP-FG
Capstan
Motor
MD DD
D-FG
D-PG
D-OUT
RESET
IC5A0
MICON
Start Sensor
End Sensor
1
IN 1
IN 2
OUT 1
OUT 2
(U44903014)
Power, Timer, Mechanical Control
HS-U449
5
6
4
7
BB
~
~
– +
D901
7
6
4
2
T901
10
11
13
14
15
D920
D927
D913
D910
Q906
Q910
Q905
Q904
Q909
Q907 D918
IC901
3
1
STBY5
1
2 3
4
Photo-coupler
PC901
2
D908
AC 120V
Q901
Q903
CP-MOTOR-V
MOTOR-V
PWV
SW5
STBY5
SW9
SW5
STBY5
To TUNER
TU01 16
M570
M572
64
67
65
66
FLDCS
Sub-CLK
Sub-DATA
Sub-SI
IC5A1
Memory
4
3
2
5
10, 21
VDD
STRB
SCLK
SIN
SOUT
IC8A0
STBY5
SG1 ~ SG10
+30V
D907
CTL+
CTL-
2
1
6
7
Control
Head
MA DA
33
PC0
31
PC2
D5D0
11 ~ 20
PWV
59
72
71
To IC3A0 42
To TU01 11
To IC3A0 43
To TU01 12
89
DR-FG
90
DR-PG
76
DR-OUT
77
CP-OUT
87
CP-FG
8
VENV
From
IC2A0
84
95
CTL(+)
94
CTL(-)
PCB-OPE
EJECT
POWER
KEY3
P12
OS
MS
FF STOP REW
CHANNEL CHANNEL
Front Key
SP/EP
REC PAUSE
GR1 ~ GR4
27 ~ 24
PLAY
Display
V8A0
DECK
5
6
KEY1 ~ KEY4
6 ~ 9
10 8 11 9
2 4 1 3
D917
D903
D905
KEY4 KEY2
CBV
(HS-U577 ONLY)
I C-DATA
I C-CLK
2
2
6
IC3A0
AMODE
56
28 7
A-ENV
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