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IR7501
REMOTE CONTROL
RECEIVER
VDD
GND
CTL.
3
2
1
IC7505
(RESET)
X SW+5.2V
2
VDD
OUT
1
S7501
S7504
EXT LINK
OPEN/CLOSE
S7506
S7508
S7502
STOP
REC
CH-DOWN
S7505
S7507
S7503
SELECT
PLAY
CH-UP
S7002
POWER
P7001
P7506
4
FRONT(L) P.C.B.
IC7501
(TIMER)
MAIN P.C.B.
IR
3
REMOTE CTL.
74
SYS PFAIL
H
73
PFAIL
L
KEY IN1
86
KEY IN1
KEY IN2
87
KEY IN2
KEY IN3
88
KEY IN3
10
XCIN
X7502
32.768KHz
11
XCOUT
13
XOUT
X7501
10MHz
15
XIN
P SAVE
H
POWER SAVE
H
61
QR7508
X SW+12.4V
(
:ON)
H
Q7510
(
:OFF)
L
IC7502
(RESET)
RESET
L
12
4
VDD
5
X SW+5.2V
FL TXD 5
FL RXD
6
FL CLK
7
FL RESET
L
51
FL CS 45
IIC CLK
IIC CLK
29
IIC DATA
IIC DATA
30
PP7401
PS7801
7
PP7401 PS7801
8
XTMUTE
65
Q7503
SYNC IN
98
BUFFER
Q7501
CVIN1
89
BUFFER
DR POWER ON
42
H
DI POWER ON
H
44
TU POWER ON
H
43
G SCLK A
TBUS CLK
37
G SBPTM A
TBUS TXD
35
G SBMTP A
TBUS RXD
36
IC7507
X SW+12.4V
(FAN MOTOR DRIVE)
FAN PWM OUT 22
3
+
Q7511
1
-
(FAN MOTOR DRIVE)
2
P1501
23
P1501
FAN LOCK H 39
23
T7501
DISPLAY HEATER
POWER SWITCHING
TRANSFORMER
D7506
IP7501
HEATER+
+38V
(IC PROTECTOR)
9
7
+B
1
2
1
GND
3
6
D7505
-33V
8
5
HEATER-
IC7504
(DISPLAY DRIVE)
7
VCC
VP 15
FL29
12
FL28 13
10
S DATA
FL25 17
9
SCK
FL24 18
FL22 20
FL21 21
FL20 22
FL18 24
8
RESET
FL17 25
3
CS
FL15 27
FL14 28
5
VSS
FL11 31
FL04 38
FL03 39
FL01 1
FL00 2
IC7301
(NICAM/A2)
29
SCL
FL16 26
FL13 29
30
SDA
FL10 32
FL06 36
FL05 37
FL02 40
TU7801
U/V TUNER
12
SDA
11 SCL
XT MUTE
QR4003-
B
TO/FROM
ANALOG A/V SECTION
SLICER VIDEO
IC3001-
85
DR P ON
H
QR1501-
B
TO
P OFF
L
POWER SUPPLY SECTION
IC1506-
1
TU P ON
H
2
IC1510-
SCLK
P7402-
3
TO/FROM
SBPTM
DIGITAL P.C.B.
P7402-
7
SBMTP
P7402-
9
FAN MOTOR
P1102
P1103
M
23
1
P1102
P1103
DMR-EH55EC/EP,EH56EG
23
3
Timer Block Diagram
TO
UNREG.+38V
PP7401
PS7801
U/V TUNER
3
(
BTL+30V)
16
DP7501
45
F+
1
F-
41
P1
42
P2
37
P3
36
P4
34
P5
33
P6
32
P7
30
P8
TIMER
29
P9
DISPLAY
27
P10
26
P11
23
P12
13
P13
11
P14
9
P15
7
P16
28
2G
25
3G
22
4G
18
5G
15
6G
10
7G
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