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IR7501
REMOTE CONTROL
RECEIVER
VDD GND CTL.
3
2
1
IC7506
(RESET)
D+3.3V
2
VDD
OUT
1
IC7505
QR7506
(RESET)
(
H
:ON)
X SW+5.2V
2
VDD
OUT
1
S7504
OPEN/CLOSE
S7506
S7508
S7502
STOP
REC
CH-DOWN
S7501
S7505
S7507
S7503
EXT LINK
SELECT
PLAY
CH-UP
S7001
POWER
P7001
P7506
3
FRONT(L) P.C.B.
X SW+5.2V
HDD SEL
Q7103
D7107
(HDD SEL LED DRIVE)
(BLUE)
DVD SEL
Q7102
D7102
(DVD SEL LED DRIVE)
(AMBER)
SD SEL
Q7101
D7101
(SD SEL LED DRIVE)
(GREEN)
LED P.C.B.
IC7501
(TIMER)
MAIN P.C.B.
IR
2
REMOTE CTL.
81 SYS PFAIL
H
80
PFAIL
L
KEY IN1
101
KEY IN1
KEY IN2
102
KEY IN2
KEY IN3
104
KEY IN3
P7101
P7507
86
HDD SEL LED
H
2
P7101
P7507
87 DVD SEL LED
H
3
P7101
P7507
88 SD SEL LED
H
4
P SAVE
H
POWER SAVE H
78
QR7508
X SW+12.4V
(
H
:ON)
Q7510
(
L
:OFF)
TO
H
PWR SAVE
POWER SUPPLY
B
QR7401-
SECTION
IC7502
(RESET)
RESET L
11
4
VDD
5
X SW+5.2V
FL TXD
4
FL RXD
5
FL CLK
6
FL RESET L
93
FL CS
94
IIC CLK
IIC CLK
28
IIC DATA
IIC DATA
29
IC7503
(EEPROM)
XCIN
9
6
SCL
X7502
32.768KHz
5
SDA
XCOUT
10
IC3001
(A/V PROCESSOR)
XOUT
12
88
SCL
X7501
10MHz
89
SDA
XIN
14
XTMUTE
63
Q7503
SYNC IN
109
BUFFER
Q7501
CVIN1 113
BUFFER
HDD PFAIL L
47
DR POWER ON H
49
DI POWER ON H
51
JC POWER ON H
50
G SCLK A
G SBPTM A
TBUS CLK
44
G SBMTP A
TBUS TXD
42
TBUS RXD
43
IC7507
X SW+12.4V
(FAN MOTOR DRIVE)
FAN PWM OUT
23
3
+
Q7511
1
-
(FAN MOTOR DRIVE)
2
P7504
1
P7504
FAN LOCK H
52
3
T7501
DISPLAY HEATER
POWER SWITCHING
TRANSFORMER
IP7501
D7506
HEATER+
+38V
(IC PROTECTOR)
9
7
+B
1
2
1
GND
3
6
D7505
-33V
8
5
HEATER-
IC7504
(DISPLAY DRIVE)
8 VCC1
VP
64
18
VCC2
SEG00
44
4 S DATA
SEG25
19
3
SCK
SEG26 17
SEG35
45
SEG39 49
1 RESET
2 CS
DIG00
63
5 VSS
DIG07 56
PK7702 PK7302
1
PK7702
PK7302
2
<EEP ROM information>
1.Country & Language
2.Tuner preset
3.Timer REC info.
4.ROM Correction info.
PP7401 PS7801
7
PP7401
PS7801
8
XT MUTE
QR4002-
B
TO/FROM
ANALOG A/V SECTION
SLICER VIDEO
IC3001- 85
HDD PFAIL
L
IC1501- 4
DR P ON
H
P1501- 15
TO/FROM
DIP ON
H
POWER SUPPLY SECTION
P1501- 11
JC P ON
H
IC1510- 2
SCLK
P7402-
6
SBPTM
TO/FROM
P7402-
10
DIGITAL P.C.B.
SBMTP
P7402- 12
FAN MOTOR
M
TO
UNREG.+38V
PP7401 PS7801
U/V TUNER
3
(
16
BTL+30V)
DP7501
1
F+
47
F-
TIMER
DISPLAY
13
P1
44
P32
4
1G
5 2G
7
3G
12
8G
IC7301
(NICAM/A2)
29
SCL
30
SDA
TU7801
U/V TUNER
12
SDA
11
SCL
DMR-EH50GN
Timer Block Diagram
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