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1
3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM
3.1 BLOCK DIAGRAM
A
TUNER AMP UNIT
B
FM/AM TUNER UNIT
Q3
CN402
FM RF
FM/AM
25
ANTENNA
26
41
FM
34
OSC
Q201 Q202
AM RF/AGC
AM
AMTV
OSC
19
20
FMTV
AMIF
AMTV
PLL
9
29
AMTV
FMVCO
25
FMTV
AMVCO
IC501
PM2006A
38
37
PDI/PCK/PDO/PCE
X501
CN701
BUSL+
7
11
BUSL-
IP-BUS
5
BUS-
IP-BUS DRIVER
1
BUS+
5
Q701
6
8
CA0008AM
B.U
ASENBO
Q702
D
DECK UNIT
CN252
1
EQ AMP
FWD
L-ch
37
IC251
36
5
CXA2559Q
REV
39
L-ch
4
18
17
CN254
M2
MECHANISM
2
SUB
M
DRIVER
1
MOTOR
18
19
17
5
IC351
2
PA2020A
1
M1
CN255
MAIN
M
10
8
7
MOTOR
CN253
3
1
5
3
1
5
CN256
EGN1
REEL
SENSE
S2
MODE
E
REEL SENSE PCB
1
2
T31
Q31 CF51
CF52
CF53
FM MIX
FM IF
FM IF
FM IF
10
9
14
15
17
19
FM/AM PROCESSOR
PA4023B
IC1
25
6
38 32 36
16
18
23
31 30
CF232
AM IF
AMVCC
FMVCC
VCC
15
17
14
13
21
Q907
Q909
4
5
AM
FM
VCC
Q908
Q910
TUN-L
2
BUS-L1
5
BUS-L2
6
TAPE-L
3
1
TX
IC702
2
RX
8
ASENBO
VCC
VDD
2
CN251
VCC
4
4
5
TAPE+B
54
LOUT
56
7
TX
3
3
61
Lch
RX
1
ASEMBO
37
MUTE
MCMUTE
9
9
MCMUTE
B.U
20
B.U
20
STBY
48
STBY
19
STBY
19
MTL
MTL
38
MTL
8
8
LOAD
42
LDSW
LOADSW
11
11
CN602
6
6
S1
LOAD
2
3
KEH-P490,P4900,P4950
T51
47
1
2
19
FM PROCESSOR
7
IC2 PA4024A
28
40
43
FMSL
9
AMSL
18
6
SD
TUN-L
ELECTRONIC VOLUME
IC301
11
RL
PML003AM
10
FL
11
FL
15
RL
Q307
MUTE
MUTE
Q911
Q306
Q904
Q905
8V
B.U
REGULATOR
RESET
SYSPW
IC602
1
Q906
S-80734AN
B.U
66 65
60
70
X1
X601
SYSTEM
69
X2
CONTROLLER
IC601(2/2)
PE5086A
63
8
9
5
8
5
8
5
KEY MATRIX
LCD
C
KEYBOARD UNIT
3
4
TUNER Lch
Q903
B.U
Q921
Q920
SYSPW
55
74
76
SL
53
SD
SYSTEM
CONTROLLER
IC601(1/2)
PE5086A
29
FM
30
AM
Q309
CN301
MUTE
2
MUTE
1
Q310
POWER AMP
CN603
9
FL+
6
6
7
FL-
5
5
IC302
TDA7384
19
RL-
9
9
17
RL+
8
8
STBY
22
4
B.U
7
7
SYSPW
FUSE
Q901
10A
BSENS
Q902
ACC
ASENS
2
2
B REMOTE
IC901
1
5
1
1
TPD1018F
6
SYSPW
VDD
SWVDD
Q601
VDD SWITCH
SW5V
CN601
3
4
6
3
4
6
CN1901
REMOTE CONTROL
SENSOR
3
IC1902
1
56 10
RS-140
18
DPDT
17
20
REM
KYDT
LCD DRIVER
IC1901
PD6278C
22
23
X1901
4
A
VDD
68
B
FRONT-L
SPEAKER
REAR-L
SPEAKER
BACK UP
ACC
B.REMOTE
C
D
9
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