Block Diagram And Schematic Diagram - Pioneer KEH-P8800R/EW Service Manual

1
KEH-P8800R,P8800R-W,P8850 KEH-P8800R,P8800R-W,P8850

3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM

3.1 BLOCK DIAGRAM
A
A
TUNER AMP UNIT
B
FM/AM TUNER UNIT
FM FRONT END FM/AM 1ST IF 10.7MHz
Q3
CN451
ANT
1 27
GND2
2
38
22
35
Q201 Q204
33 45
28
AM RF AGC
AM RF
VCC
VDD
VCC
VDD
CN101
IP-BUS
CONNECTOR
E
DECK UNIT
PB HEAD
FWD
CN252
LCH 4
EQ AMP/DOLBY NR B VCC
1
5
37
IC 251
REV 36 7
5 3
LCH CXA2560Q
39
Lch
4
2 4 3 18 17
CN251
M2 SUB
VR301
MUTE
MOTOR
9
CN254
1
M
MECHANISM
B.U
2 20
DRIVER
18 19
5
17 STBY
19
IC 351
2
M1 MAIN
PA2020A
MOTOR
CN255
1
METAL
M 8
10 9 8
LOAD
11
7 5 3 2 1
F
PCB UNIT
7 5 3 2 1
EGN1
MODE
SENSE
S2 S1
70µS LOAD
4 6
G
REEL PCB
4 6
EGN3
REV END
SENSE
D
EGN2
FWD END
SENSE
C
KEYBOARD UNIT
SWVDD
25
DATA ROM
IC 1902
PD8051A
KEY MATRIX
ILL, DUAL DRIVE
Q1901–1906
ILM H:ORANGE
L:PURE GREEN
ILB
12
1
2
FM MPX
T51 Q51 CF51 CF52 CF53
25 24
DI/DO 32
IC 2 PM4008A
39 42 44 46 63
34 33 41 44 11 12 13
69
70
54
MIXER.IF AMP DET
IC 1
78
PML002A
65
71
55 57 61 74 75
CF202
EEPROM
5 4
IC 3
AM 2ND IF 450kHz 6 3
BR9010FV
22 10 14 12 15 16 8 13 2 3 4
Q101
B.U
ASENBO
IP-BUS DRIVER
Q102
5 1 TX
IC 101
6 2 RX
CA0008AM
8
5 BUS–
8
IPPW
1 BUS+
7 BUS+L
11 BUS–L
4 SYS+B
3
BZ641
CN651
ALARM
BUZZER
RI MUTE
9
20 B.U
stby
19
MTL
8
LOADSW
11
Q851
FLAP MOTOR
CONTROL
4 5
M951 M CN851
AUTOMATIC
3 6
FIN
FLAP MOTOR 5 OUT1 IC 851
14 11
BA6288FS
OUT2 FIN
4
BLUE FCLSSW
S951
3
CLOSE
RED FOPNSW
2
S952
OPEN WHITE
1
SWITCH PCB
CN851
SHELL
2
1
S953
HALF LOADING
SWITCH
REMOTE CONTROL
SENSOR
IC 1903 4
CN1901 CN801
OPT IN
SWVDD
RS-140
DSENS
1 12
1
5 14 97
DATA
REM VDD AVCC
33
4 9
KYDT
34
5 8
DPDT
ADDRESS
RST
KEY AND
OEL MODULE
7 6
CONTROLLER S1925
11 2
IC 1901
PD5471A
32
2 11
ILMD
ILB 9 4
SWVDD 8 5
13 11
EW ONLY
X1901
CN1902
1-15 17 18
OEL MODULE
MXK8002
2
3
Q153 Q151
TMUTE RMUTE
19
6
Q154 Q155
46
LDET
TMUTE
COMP 82
tmute
21
19
LDET
ldet
18
Q501
VDD
24
FM/AM 81
FM/AM
IC 501
20
SYSTEM
PM4009A
CONTROL
11 12
IC 601(1/2)
RDS
PD5495A
DECODER
X501
95 PD5496A
NL
3.648MHz
89
SK
Q402
49
NL2 NL2 SD
97
/EW
SL
94
SDBW
4
tunpce@
3
TUNPCE
2
tunpck
1
TUNPDO
10
ASENBO
30
TX
29
RX1
7
IPPW
42
IN3_L
Frontout_L
43
ELECTRICAL VOLUME/
IN4+_L Rearout_L
SOURCE SELECTOR
44
IN4–_L Preout_L
41
IC 203
IN2_L Setout_L
PML004AF
40
IN1_L PV in_L
VST
VCK
VDT
Q641
24
PEE
LEVEL L
SYSTEM isens
CONTROL
asens
bsens
IC 601(2/2)
PD5495A
TELIN
PD5496A
DRSYS
DRSENS
DRELAY
XOUT
79
RIMUTE
63
stby
XIN
53
B.U metal
Q852
55
LOAD
FLPPW 26
FLPPW
Q853
FLPOPN 34
FLPOPN
FLPCLS
37
FLPCLS
40
fclssw
38
fopnsw
MOSENS
42
shell
DLSENS
47
DSENS
36
KYDT
35
DPDT
RESET
12
2 IC 961 1
RESET
VDD
S–80735ANDZI
VDD
Q962
Q803
B.U
Q808
46
OEL PW
Q806
B.U
Q801
44
B.U
ILMPW
Q802
Q807
45
SWVDD
3
4
Q911
VDD B.U
Q913
15V REG.
B.U
IC 911
TUN5V
S-81250SGUP
20
DALMON
43
Q805
FLPILM
HIGH OUT
9
16
FLI
FLO
11 IC 271
14
RLI RLO
PA2028A
7 18
IN1 SWLO
Q301 MUTE
Q261
B.U
27
MUTE
Q262
Q921 Q923
SYS+B
Q981
Q922
SYSPW
22
SYSPW
22 4
MUTE STBY
23
RL–
10 POWER AMP
12 21
FL RL+
11
14 3
FL IC 301 FL–
9 PAL005A
5
FL+
1
B.REM
2
25
B.U
LEVEL DET.
92 1 IC 231 3
NJM2068MD
Q932
23 isens
74
Q931
73
asens
11
87
bsens
B.U
86
Q951
76
TELIN
13
Q681
X601
B.U
10.000MHz
15
DRSYS
Q683
Q682
DRSENS
POWER DRIVE
/ES
DRELAY 6 IC 681 1
TPD1018F
Q684
5
DFS
Q685
6
4
B.U
CN351
FRONT
5
L CH
Q353
6
REAR
9
L CH
Q355
10
SUB
1
WOOFER
Q351 L CH
2
B.U /EW
RR RR
- +
BACK FR FR
UP - +
FL FL
ILL ANT
- +
RL RL
GND ACC
- +
CN901
RL–
9 RL–
RL+
11 RL+
FL–
10
FL–
FL+
12 FL+
B.REM
4
B.REM
FUSE
10A
BACKUP
1 BACKUP
2 GND
ILL1
3 ILL
ACC1
5
ACC
TEL1
8 MUTE
DOOR SW
7 DOOR SW
/ES
ALARM
6
CN681
MOSEN1
1 ALARM SENSOR
DLSEN1
2
DOOR LOCK