9
KEH-P690,P6950
1
3
4
1
3
4
D
C
B
A
3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM
3.1 BLOCK DIAGRAM
TUNER Lch
B.U
VDD
Q952
SYSPW
SYSPW
VDD
AV
D
D
51
82
19
SYSTEM
CONTROLLER
PE5084A
IC601(1/2)
TUN-L
TUN-L
ELECTRONIC VOLUME
PML003AM
IC201
11
10
2
5
6
4
BUS-L1
BUS-L2
TAPE-L
RL
FL
PEE
Q205
Q201
MUTE
MUTE
POWER AMP
PAL005A
IC301
11
15
MUTE
STBY
FL
RL
FL+
FL-
RL+
RL-
22
4
9
7
19
17
SYSPW
B.U
B.U
SYSPW
Q302
Q951
Q959
Q301
Q953
Q601
Q602
MUTE
8V
REGULATOR
RESET
IC604
S-80734AN
VCC
VDD
1
2
8
5
6
B.U
TX
TX
RX
RX
ASENBO
ASENBO
IP-BUS DRIVER
IC751
HA12187FP
BUSL+
BUSL-
BUS-
BUS+
Q751
Q752
8
1
5
11
7
86
85
47
100 33
11
1
2
92 93
16
15
65
55
64
MUTE
PEE
RESET
BSENS
ASENS
SWVDD
DPDT
KYDT
ILMPW
DSENS
ASEMBO
RIMUTE
STBY
MTL
LOADSW
X1
X2
SYSTEM
CONTROLLER
IC601(2/2)
PE5084A
X601
Q954
BSENS
ASENS
ACC
FUSE
10A
B.U
STBY
B.U
MUTE
MTL
LOAD
69
44 25 95 96 46
VDD
Q957
Q958
ILMPW
DSENSE
Q609
SWVDD
VDD
SW5V
ILL1
KYDT
DPDT
SW5V
VDD SWITCH
5
1
4
2
1
3
4
11
9
20
19
8
3
4
11
9
20
19
8
11
9
5
8
10
14
A
TUNER AMP UNIT
E
DECK UNIT
2
12 11
10
10
5
6
8
LCD DRIVER
IC901
PD6279A
DPDT
KYDT
VDD
LCDB
XO
XI
REM
IN
REMOTE CONTROL
SENSOR
IC902
RS-140
X901
53
52
50 10
4
1
60
57
58
IC251
CXA2560Q
EQ
MOTOR
CN251
CN252
CN254
7
5
TAPE+B
Lch
17
18
FWD
L-ch
REV
L-ch
37
36
39
19
17
5
6
5
6
S1
LOAD
S2
M
M2
SUB
MOTOR
CN602
CN751
IP-BUS
CN301
CN951
CN601
CN1901
VCK/VDT/VST
ACC
BACK UP
FL+
FL-
RL-
RL+
B.REMOTE
3
VCC
LOUT
RIMUTE
LDSW
MTL
STBY
KEY MATRIX
LCD
ANT1 TV
ANT2 TV
RF
TV
IC 3
BR9010FV
AM 2ND IF 450kHz
CN401
B
FM/AM TUNER UNIT
28
FM FRONT END
Q3
Q201 Q204
AM RF
FM/AM 1ST IF 10.7MHz
T51 Q51 CF51
CF52 CF53
MIXER.IF AMP DET
IC 1
PML002A
38
39
42
44
46
63
32
19
46
6
21
18
LDET
COMP
34 33 41 44 11 12 13
69
70
54
78
65
71
75
74
61
57
55
45
33
35
22
22
25
10 14
12 15 16
8
13
2
3
4
CF202
VDD
LOCL
VCC
Q401
VCC
VDDT
DI/DO
CE2
CK
CE1
SDBL
SL
FMSD
TUNPCE2
TUNPCK
TUNPCE
SDBW
SL
SD
PDIO
NL1
NL2
EEPROM
5
6
4
3
IC 2 PM4008A
FM MPX
25
24
NL
Q202
32
78
NL
SD
SL
SDBW
TUNPCE
TUNPCK
TUNPCE2
LOCL
31
75
22
99
97
52
49
4
4
S3
70
µ
S
S601
2
12 11
10
3
8
7
5
C
PANEL PCB UNIT
BZ601
ALARM
BUZZER
25
3
11
9
5
8
10
14
3
TUNPDI,O
94,98
ANTENNA
D
KEYBOARD UNIT
27
Q952
VDD
B.U
S-81250PGPD
VDDT
1
3
IC951
28
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