N
8
HS-U748
OFF:VTR ON:TV
+
–
KEY No.
No.
10
9
8
7
6
5
4
3
2
1
BATT
1.5VX2
D1
EL-1L7
/SID303C
R1
1.8
R2
220
C1
6.3V
100
µ
Q1
2SD596
/2SC3440
C2
0.47
µ
C3
0.1
µ
JS1
JS2
JS3
SW
X1
4MHz
18
17
16
15
14
13
12
11
P21/INT
P20
D9/TOUT
D8
D7
D6
D5
D4
D3
D2
CARR
VDD
VDCE
VSS
XIN
XOUT
CNVSS
RESET
27
28
29
30
31
32
33
34
35
36
19
20
21
22
23
24
25
26
P00
P01
P02
P03
P10
P11
P12
P13
D0
D1
IC1
M34570M4-095FP
P30
P31
P32
P33
P40
P41
P42
P43
D6
D5
D4
D0
D1
D2
D3
K01
K02
K03
K07
K06
K05
K04
K09
K10
K11
K15
K14
K13
K12
K17
K18
K19
K23
K22
K21
K20
K41
K33
K25
K42
K34
K26
K43
K35
K27
K47
K46
K45
K44
K39
K31
K38
K30
K37
K29
K36
K28
KEY NO.
FUNCTION
K01
K02
K03
K04
K05
K06
K07
K08
K09
K10
K11
K12
K13
K14
K15
K16
K17
K18
K19
K20
K21
K22
K23
K24
K25
K26
K27
K28
K29
K30
K31
K32
K33
K34
K35
K36
K37
K38
K39
K40
K41
VCR POWER
EJECT
1
4
5
2
6
3
7
MUTE
TV POWER
QUICK PROGRAM
CH
10
VOL
9
CH
8
INPUT
REW
PLAY
PAUSE
STOP
REC
FF
X2
CANCEL
AUDIO/VIDEO
VCR/TV
ADJ +
INDEX +
INDEX –
MENU
DISPLAY
VOL
ENTER
K42
K43
K44
K45
K46
K47
K48
ADJ –
SP/EP
KEY NO.
FUNCTION
REMOTE HAND UNIT
<>
><
IC5A1 24LC04BT*SN
START
STOP
LOGIC
6
SCL
5
SDA
SERIAL
CONTROL
LOGIC
DEVICE
ADDRESS
COMPARATOR
LOAD
COMP
3
A2
2
A1
1
A0
DATA WORD
ADDR/COUNTER
LOAD
INC
Y DECODER
R/W
H.V.
PUMP/TIMING
DATA
RECOVERY
X DECODER
SERIAL MUX
E PROM
2
DOUT/ACK
LOGIC
D IN
D OUT
7
WP
4
GND
8
Vcc
EN
IC5A4 TA7291S
3
7
6
5
9
1
2
8
THERMAL
PROTECTION
Vcc
Vs
OUT1
OUT2
GND
IN2
IN1
V
REF
Reg.
INPUT
OUTPUT
MODE
IN1
IN2
OUT1
OUT2
0
1
H
L
∞
STOP
CW/CCW
CCW/CW
BRAKE
0
1
0
1
0
1
∞
L
L
L
H
∞
:
Note:
High impedance.
Input signal activate at "H".
Z5A0 TSOP1833XG1
GND
V
S
100k
Ω
3
2
1
CONTROL
CIRCUIT
BAND
PASS
DEMODU-
LATOR
AGC
INPUT
PIN
OUT
CAPSTAN MOTOR
DRUM MOTOR
HE
HE
HE
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
M56747AFP
4
6
1
5
2
3
7
Vcc
GND
VCTL
PG
FG
MOTOR GND
MOTOR CURRENT OUT
(+5V)
180
1/16W
180
1/16W
510
1/16W
0.47
1/2W
0.1
µ
25V
0.1
µ
25V
0.1
µ
25V
510
1/16W
510
1/16W
0.1
µ
25V
0.1
µ
25V
0.1
µ
25V
B0.01
µ
25V
CORE
1 U+
2 U-
3 V+
4 V-
5 W+
6 W-
7 N.C.
8 MGND
9 MGND
10 MGND
16 N.C.
17 N.C.
18 RS
F/R 36
Vcc 35
RSm 19
Vco 20
VLIM 21
MGND 27
MGND 28
MGND 29
SGND 30
OSC 31
FGIN 32
AOUT 33
FGOUT 34
IC M63102BFP
F/R
Vcc (5V)
SGND
VCTL
MGND
Vco (12V)
FGOUT
7
8
1
4
2
6
5
11 MGND
12 U
13 V
14 W
15 N.C.
Vcod 22
N.C. 23
VCTL 24
OSCR 25
MGND 26
1.8k 0.063W
56k
0.063W
1
µ
10V
470p 50V
HW
108A
HW
108A
HW
108A
180
0.063W
1000p
50V
180
0.063W
20k
0.063W
2200p
50V
MR
1
µ
35V
12k 0.063W
0.47 0.5W
V LIMIT
3
Q5P2
R5X9
R5X8
C5U0
C5U1
R5Z1
ETREC/CL-SYNC
C5S6
R5S6
SPPB
R5C0
R5G6
R5G7
R5B9
R5B8
Q5B0
R5G8
C5T6
R5B2
2H
Q5A9
Q5A8
C5S5
C5S2
EE
TPDAT
TPCLK
R5R3
C5R1
R5R2
R5B7
D5B5
REC2
I2C-DATA
I2C-CLK
VENV
VMUTE
CPMOTORV
R5G2
R5G3
R5G1
CTL+
R5S8
R5S7
S5B1
R5C1
C5E4
Z5A0
R5G9
C5E3
C5E2
C5T7
CTL-
FSC
R5P0
C5E6
R5P2
R5P1
C5E5
L5A0
I2C-CLK
R5Z0
R5P6
C5D3
C5D2
MUTE
R5L4
TP5SW
R5A2
Q5A1
C5D4
ML
FLDCS
R5D7
R5D6
Q5B1
R5D5
R5D4
C5A0
D5D0
R5A8
R5A9
R5B3
Q5A5
R5B0
Q5A3
R5H0
C5B9
C5B8
X5A1
C5B5
C5B7
C5B6
X5A0
R5E5
C5A2
R5W1
R5W0
DATAO
S5S0
R5F8
R5F7
C5J9
IC5A1
C5V2
R5R5
R5R4
SAP
AFF
C5C3
R5T5
R5L0
R5C7
R5C6
Q5L0
C5L0
C5S4
C5S3
R5S3
R5S4
MD
TP5P2
C5T4
TP5LM
R5D9
TP5P0
C5S9
DC
MC
C5S1
C5S0
R5S0
R5S1
TP5P1
STBY5
MOTORV
G12
C5E0
PRT
R5A6
PWV
SW5-1
TP5LS
MUTE
AFTV
R5E0
S
SSVSYNC
CSYNC
TP5SU
TP5RI
TP5LT
LMUTE
V-OUT
OSD
R5E1
C5T5
TP5SS
TP4C
AENV
AMODE
R5E7
R5E2
DD
C5E1
HSEL
C5S8
TP5C
TP5B
TP5A
TP5SSV
TP5C1
TP5RM
TP-RESET
JP5A1
R5L2
DFF
L5A1
C5C1
C5C0
C5C9
D5A0
C5C5
C5C2
Q5B4
S-DET
ET
D5A2
R5R9
C5T8
D5R0
JP5A3
I2C-CLK
TP5F
I2C-DATA
R5R6
DATAI
I2C-DATA
R5R1
TU-IN
CONVSW
CHSW
BB
L3
Q5P1
TPEE
EE
SUBCLK
2H
TP5TU
TP5ES
C5A7
TP5LC
C5A6
R5G5
R5G4
R5B6
R5B5
HFREC
R5T6
Q5A7
Q5A6
R5B4
D5B4
C5T3
IC5A4
R5A3
R5A1
R5A0
D5A9
Q5A2
Q5A0
R5A5
IC5A0
D5C0
CG-V
CONNECTOR MD
t
PLAY
4.4V(p-p)
(TIME/DIV 0.5ms)
(TIME/DIV 10ms)
CONNECTOR MD
e
PLAY
4.4V(p-p)
(TIME/DIV 0.2ms)
CONNECTOR MC
y
PLAY
4.6V(p-p)
