Mitsubishi hs-u778 Service Manual page 73

T901 18
17
BB
~
10
D901
+
-
14
2
AC 120V
13
~
4
16
11
7
Regulator
Q901,Q903
15
6
D961 D960
4
3
PCB-OPE
Front Key
POWER
EJECT SP/EP
KEY4 KEY3 KEY2
P12
OS
MS
PAUSE /
Display
PLAY STOP START
V8A0
TIME
Front Key
STBY5
2
Q6305 Q6304
Q6303
J6014
REMO-IN Q6306
SYSTEM2
Q6302
J6015
REMO-OUT
B-4
D911
D913 D912
D910
Q908
D914
D909
D927
D908
D928
D907
D918
D917
D920
3
1
1
Photo-coupler
IC901 2
2
PC901
-30V
27
VEE
28~36
1G~9G
15~26
P1~P12
10~13
KEY1~KEY4
IC8A0
REC /
CH-
REC CH-UP FF REW
DOWN
LENGTH
3
1
DEMO.
Z5A0
Photo-recepter
+
HEATER
45
V8A0
-
HEATER
1,7 Display
+
30V
To TUNER
TU01 15
CP-MOTOR-V
MOTOR-V
Q906 SW12
Q910
Q905
D926
Q907
PWV
Q927
SW5-1
Q928
SW5-1
STBY5
STBY5
59
Q929
Q930
SW5-2
3
Protect of Power
(SW5-1,SW5-2,SW12)
6
From IC3A0 56
7
28
From IC3A0
To IC2A0 52
To IC6A0 14
To IC3A0 42
To TU01 10
6
71
IC5A1
14
5 72
Memory
VDD STBY5
To IC3A0 43
To TU01 11
To IC6A0 13
To IC2A0 53
9
63
STRB
To IC120 4
8
67
CLK
6
SIN
5 66
SOUT
14
REMO
10 62
Q6301
SCLK
J6012
24 12
RXD
IC6301
C-BOX
CABLE
BOX
65
To IC120 5
Power,Timer,Mechanical Control
HS-U778
PCB-MAIN
STBY5
D5D0
Q5B1
Q5A3
Q5A5
+
Back
C5A0
Up
From IC2A0 84
82 37 43
PWSV Vcc
PWV RESET
8
VENV
87
DR-FG
PRT
86
DR-PG
AMODE
77
DR-OUT
A-ENV
IC5A0
µ-COM
78
CP-OUT
85
CP-FG
I2C-CLK
I2C-DATA
61
CP-REV
46
PC0 STBY5
45
FLDCS
PC1
44
PC2
Sub-CLK
9
52
O-L IN 1
Sub-SI
1
51
IN 2
O-UL
SW5
5
BOXCLK RIS
92
CTL(+)
91
CTL(-)
9
SS
Q5A7
Sub-DATA 4
ES Q5A6
79
SU-SENS
80
TU-SENS
Q5A1 Q5A0
Take Up Supply
Sensor Sensor
DECK
MD DD
4 4
D-FG 5 3
Drum
Motor
D-PG 3 5
D-OUT 7 1
M570
MC DC
M572
4 5
CP-OUT
6 3
CP-FG
Capstan
Motor
5 4
CP-M-V
7 2
CP-REV
PC0 : Q5A8
PC1 : Q5A9
PC2 : Q5B0
Mode SW
ML
7 2
OUT 1
3 1 LM
OUT 2
IC5A4
Loading
Motor
M571
Q5A2
MA DA
Control
Head
REC Inhibit
CTL+ 2 6
CTL- 1 7
Start Sensor
End Sensor
(U77802044)