Block Diagram And Schematic Diagram - Pioneer KEH-P6900R Service Manual

1
KEH-P6900R,P6900R-B,P6910R

3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM

3.1 BLOCK DIAGRAM
- KEH-P6900R,P6900R-B
A
TUNER AMP UNIT
A B
FM/AM TUNER UNIT
FM FRONT END
Q3
ANTENNA
CN401
27
Q201 Q204
28 28
AM RF
CN751
B
BUSL+
7
11 BUSL-
IP-BUS 5
BUS-
1
BUS+
Q751
8
Q752
E
DECK UNIT
CN252
1
FWD
L-ch
37
36
5
REV 39
L-ch
4
CN254
C
M2
2
MOTOR
M
SUB
1
MOTOR
DRIVER
5
2
PA2020A
1
M1
CN255
MAIN M
8
MOTOR
CN253
CN256
EGN1
REEL
SENSE
F
REEL SENSE PCB
D
14
1
2
FM/AM 1ST IF 10.7MHz
T51 Q51 CF51 CF52 CF53
38 39 42 44 46 63
69
22
70
54
MIXER.IF AMP DET
IC 1
78
PML002A
65
71
35
33 32 45 55 57 61 74 75
CF202
EEPROM
5
IC 3
AM 2ND IF 450kHz 6
BR9010FV
Q202
VDD
VCC
25 22 10 14
Q401
LOCL
VCC
TUN-L
BUS-L1
BUS-L2
TAPE-L
IP-BUS DRIVER
1
5 TX
IC751
2 RX
6
HA12187FP
B.U
8
ASENBO
ASENBO
CN251
VCC
4 4
EQ
TAPE+B
5
IC251 LOUT 86
7
TX
3
3
CXA2560Q 85
Lch
RX
47
ASEMBO
18 17
MUTE RIMUTE 65
9
9 RIMUTE
B.U
20 20 B.U
19
18
17 STBY 55
STBY
19 STBY
19
IC351
MTL MTL 64
MTL
8 8
LOAD LDSW 69
7 10
LOADSW
11 11
CN602
3 1 5 4 6
3 1 5 4 6
S1
S2 S3
LOAD
MODE 70µS
2
3
FM MPX
25 24
32 19
IC 2 PM4008A 6
34 33 41 44 11 12 13 46
COMP
21
LDET
18
4
RDS
3
DECODER
24
IC 701
20
PM4009A
12 15 16 8 13 2 3 4
11 12
X701
VDDT
TUN-L
ELECTRONIC VOLUME
2
5
IC201
11
RL
6
PML003AM
10
4 FL
BZ601
ALARM
BUZZER
12
14
Q302
MUTE
Q959
Q951
VCC
Q953
8V
B.U
REGULATOR
VDD
RESET
1
IC604
Q954
2 S-80734AN
SYSPW
100 33 92 93
11
VDDT
16
X1
X601
SYSTEM
15
X2
CONTROLLER
42
IC601(2/2)
TELIN
PE5083A
44 25 95 96 46
VDD
Q957
S601
ILMPW
DSENSE
Q958
KEY MATRIX
LCD
3
Q703 Q705
TUNER Lch
Q952
B.U
TMUTE
LDET
Q707
Q702
SYSPW
51 82
Q701
45
VDD
TMUTE
88
LDET
fm/AM 1
FM/AM
SYSTEM
78
NL CONTROLLER
31
SD
75 IC601(1/2)
SL
22 PE5083A
SDBW
99
TUNPCE
97
TUNPCK
52
TUNPCE2
94,98
TUNPDI,O
49
LOCL
Q201
CN301
MUTE
MUTE
Q205
POWER AMP
CN952
5
FL+
2
3
FL- 1
IC301
FL
PAL005A
RL
21
RL- 7
23
RL+
8
MUTE STBY 25
22 4
Q301
B.U 13
SYSPW
FUSE
Q601
10A
BSENS
Q602
ACC
ASENS
11
8
Q952
VDD
B.U
3
IC951
S-81250PGPD 1
3
TEL MUTE
1
CN603
Q611
VDD
SWVDD Q609
VDD SWITCH
SW5V
CN601
12 11 10
2
12 11 10
2
C
PANEL PCB UNIT
3 8 7 5
D
KEYBOARD UNIT
6
10 5 8
CN1901 REMOTE CONTROL
4
1
50 10
53
DPDT
52 60
KYDT REM
IN
LCD DRIVER
IC901
PD6279A
58
57
X901
4
VDD
19
B5 FL+
FL-
B6
B7
RL-
RL+
B8
A4 BACK UP
ACC
A7
B.REMOTE
TEL MUTE
SENSOR
IC902
RS-140
4