Block Diagram And Schematic Diagram - Pioneer KEH-P5900 Service Manual

1

3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM

3.1 BLOCK DIAGRAM
A
TUNER AMP UNIT
B
FM/AM TUNER UNIT
FM FRONT END FM/AM 1ST IF 10.7MHz
T51 Q51 CF51
Q3
ANTENNA
CN401
27
38 39
22
35
Q201 Q204
33 32 45
28
28
AM RF
Q202
25
Q401
LOCL
CN751
BUSL+
7
11 BUSL-
IP-BUS
5 BUS-
IP-BUS DRIVER
1 BUS+
5
Q751
6
8
B.U
ASENBO
Q752
E
DECK UNIT
CN252
1
EQ
FWD
L-ch
37
IC251
36
CXA2559Q(KEH-P5950)
5
REV 39
CXA2560Q(KEH-P5900)
L-ch
4
18
CN254
M2
2
M MOTOR
SUB
1
MOTOR
DRIVER
18 19
5
IC351
2
1 PA2020A
M1
CN255
MAIN M
8 7 10
MOTOR
CN253
3
1 5
3
1 5
CN256
EGN1
REEL
SENSE
S2
MODE
F
REEL SENSE PCB
1
2
CF52 CF53
25
32
IC 2 PM4008A
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 BR9010FV 3
VDD
VCC
22 10 14 12 15 16 8
VDDT
VCC
TUN-L 2
BUS-L1 5
BUS-L2
6
TAPE-L 4
1 TX
IC751
2 RX
HA12187FP
8
ASENBO
BZ601
ALARM
BUZZER
VCC
VDD
2
CN251
VCC
4
4
5 TAPE+B
100 33
LOUT
86
7
TX
3 3
85
Lch
RX
47
ASEMBO
17
MUTE RIMUTE 65
9 9 RIMUTE
B.U
20 B.U
20
STBY 55
17 STBY
19 19 STBY
MTL MTL
64
MTL
8
8
LOAD LDSW 69
LOADSW
11
11
CN602
4 6
4 6
S1
S3
LOAD
70µS
KEH-P5900/UC
only
2
3
FM MPX
24
19
6
46
COMP
21
LDET
18
13 2 3 4
TUN-L
ELECTRONIC VOLUME
IC201
11
RL
PML003AM
10
MUTE
FL
Q205
POWER AMP
11
FL
PAL005A
15
RL
Q302
MUTE
MUTE
22
Q959 Q301
Q951
BSENS
Q953
8V
B.U
REGULATOR
ASENS
RESET
IC604 1
Q954
S-80734AN
VDD
SYSPW
11 92 93
3
VDDT
S-81250PGPD
16
X1
X601
SYSTEM
15
X2
CONTROLLER
IC601(2/2)
PE5084A
44 25 95 96 46
VDD
Q957
S601
ILMPW
DSENSE
Q958
2 12 11
12 11
2
3 8
10 5
KEY MATRIX
LCD
3
4
KEH-P5900,P5950
TUNER Lch
Q952
B.U VDD
SYSPW
51 82 19
SYSTEM
78
NL CONTROLLER
31
SD
75 IC601(1/2)
SL
22 PE5084A
SDBW
99
TUNPCE
97
TUNPCK
52
TUNPCE2
94,98
TUNPDI,O
49
LOCL
Q201
CN301
MUTE
CN951
9
FL+ 9
9 FL+
7
FL-
FL-
IC301 8 8
19
RL-
11 11
RL-
17
RL+ RL+
10
10
STBY 25
4
B.U 14
SYSPW 14 BACK UP
FUSE
Q601
10A
3 3
B.REMOTE
Q602
ACC
5 5 ACC
Q952
B.U
IC951
1
VDD
SWVDD Q609
VDD SWITCH
SW5V
CN601
10
10
C
PANEL PCB UNIT
7 5
D
KEYBOARD UNIT
6 8
CN1901 REMOTE CONTROL
SENSOR
4
IC902
50 10 1
RS-140
53
DPDT
60
52
KYDT REM
IN
LCD DRIVER
IC901
PD6279A
57 58
X901
4
A
B
C
D
11