Mitsubishi Electric HS-U449 Service Manual page 75

Q5A8 Q5A9 Q5B0
D5B5
TP5P0 TP5P1 TP5P2
TP5LM R5B8 R5B9 R5C0
R5B7
R5G6
R5G7
R5G8
Q5A0 Q5A2 Q5A1
D5C0 D5A9
R5A1 R5A3 R5A0 R5A2
R5A5
TP5LS TP5LT
R5G1 R5G3
R5G2
TP5SU TP5RI TP5TU
Q5A6 Q5A7
TP5ES TP5SS R5S3 R5S4
D5B4
C5S3 C5S4
R5G5
R5G4
R5B4
R5B5
TP5LC R5B6
C5A6 C5A7
IC5A4
C5T3
R5T5 R5T6
JP5A1
MD
MC
CONNECTOR MD t PLAY CONNECTOR MD e PLAY CONNECTOR MC y PLAY
4.4V(p-p)(T=0.92ms) 4.4V(p-p)(T=33ms) 4.8V(p-p)(T=0.92ms)
DRUM MOTOR CAPSTAN MOTOR
MOTOR CURRENT OUT
4
IC M63012FP
180 180
0.1µ 0.1W 0.1W
25V 1 U+
Vcc 0.1µ 0.1µ
7
(+5V) 25V 25V HW 2 U-
108A
3 V+
B-0.01µ
GND 50V 4 V-
6 HW
108A 5 W+
36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19
6 W-
M56747AFP HW 7 N.C.
108A
8 MGND
9 MGND
VCTL
1
10 MGND
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
11 MGND
180
PG
5 0.47 12 U
0.5W
HE HE HE 13 V
180
14 W
0.1µ 0.1µ 0.1µ
25V 25V 25V
FG 15 N.C.
3 CORE
16 N.C.
MOTOR GND
2 17 N.C.
150 150 150
18 RS
12k 0.1W
0.47 0.5W
TP5F
R5A6
D5A2 C5C1
D5R0
R5R4
R5R5
R5S0 R5S1
C5S0 C5S1 TP5SP
R5Z0
R5S6 C5S6 C5T6 C5T5
IC5A0
M37760MCH4D2GP
C5S8
C5S9
R5L2
R5L4
C5S2 C5T8
C5L0
Q5L0
R5L0
R5R2
TP5C TP5A
C5R1
TP5B TP4C
R5R3
R5C6 C5S5
R5C7
TP5SSV
C5T7
R5S7
R5S8
JP5A6
TP5C1
F/R 36 7
F/R
Vcc 35 8
Vcc (5V)
FGOUT 34 6
FGOUT
470p 50V
AOUT 33 MR
56k 1µ
FGIN 32 3.9k
0.1W 16V
0.1W
OSC 31
1.8k 0.1W
9.1k
SGND 30
0.1W
MGND 29 1000p 1 SGND
50V
MGND 28 2 MGND
MGND 27
MGND 26 1µ 1µ
35V 35V
12k
OSCR 25
0.1W
VCTL 24 4 VCTL
N.C. 23
Vcod 22
VLIM 21
Vco 20 5 Vco (12V)
1000p
RSm 19 50V
R5F7 R5F8
C5J9
IC5A1
C5E1
L5A0 C5E0
C5E3
R5P1
C5E6
R5P0 Q5P0
C5E2 R5P2
C5E5
C5E4
R5P3
Q5P1
R5P8
C5D4
C5D3 Q5A3
R5P6
C5D2 R5B3
D5D0
R5B0
C5A9
R5A9
R5E5
C5B9 Q5A5
R5A8
X5A1
C5B8
Q5B1
R5D4
C5B7 C5A2
X5A0 R5D5
C5B6 R5D7
C5B5 R5D6
R5H0
R5Y0
TPPB
R5G9
C5V2
Q5Y0
TP5RM
IC5A1 24LC04BT*SN / M24C04-MN6T / CAT24WC
8
4
7
6
SCL START
STOP
5
SDA LOGIC
EN H.V.
SERIAL PUMP/TIMING
CONTROL
LOGIC
LOAD
DEVICE DATA
COMP
RECOVERY
ADDRESS
COMPARATOR LOAD INC
3
A2 R/W
DATA WORD 2
E PROM
TSREC 2 ADDR/COUNTER
A1
1
A0
Y DECODER SERIAL MUX
D IN DOUT/ACK
LOGIC
I2C-CLK D OUT
I2C-DATA
SAP
IC5A4 TA7291S
Vcc
V REF
2 8
6 INPUT
Vs
IN1
Reg.
0
7 1
OUT1
3
OUT2
0
R5B2
THERMAL
1
PROTECTION
∞ :
Note :
9 1 5
C5A0
IN1 IN2 GND
TP-RESET
Z5A0 GP1U293Q
Z5A0
GP1U293Q
AMP Limiter B.P.F Demodulator
JP5A3
Vcc
GND
WP
OUTPUT
MODE
IN2 OUT1 OUT2
0 ∞ ∞ STOP
CW/CCW
0 H L
1 L H CCW/CW
1 L L
BRAKE
High impedance
Input signal activate at "H"
V CC
R L
Integrator Comparator
3 2 1
GND V V
CC OUT
CONTENTS
PCB-INTERCONNECT ···················· C-1
(POWER) PCB-MAIN ························ C-2
(HIFI) PCB-MAIN ······························ C-3
(TIMER/OPEKEY) PCB-MAIN ·········· C-4
PCB-OPE ·········································· C-4
(Y/C/A) PCB-MAIN ···························· C-5
(CONT) PCB-MAIN ··························· C-6
C-6
HS-U449