Service Manuals, User Guides, Schematic Diagrams or docs for : Pioneer KEH KEH-P4020 & 4022 & 4025 KEH-P4020_4022_4025
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1 2 3 4
3.2 OVERALL CONNECTION DIAGRAM
A
B
C
D
10
1 2 3 4
5 6 7 8
A
B
C
D
11
5 6 7 8
1 2 3 4
3.3 KEYBOARD UNIT
A
B
C
D
12
1 2 3 4
5 6 7 8
A
B
C
D
13
5 6 7 8
1 2 3 4
3.4 PANEL PCB UNIT
A
B
C
D
14
1 2 3 4
1 2 3 4
3.5 CASSETTE MECHANISM MODULE
A
D DECK UNIT
Vref
CN252
R302
16K
1/50
C271
R304
16K
C302
C256
R1
C252
390P
C254
R01
390P
29
28
27
30
26
25
23
24
22
21
Rev-L
NC
PBOUT(R)
NC
EQOUT(R)
MOUT(R)
NC
NC
Vref3
TAI(R)
RIP
RL
31 20
Rev-R 32
NFI(R) MUTE
19
RR Vref1 120/70
33 18
Fwd-R R-R
34
RIN(L)
IC251 ser/REP
17
NC f/R
35 16
C253
390P
B FR
36
RIN(R)
HA12229F MSOUT
15 C
GND VCC
Fwd-L 37 FIN(R) MSDET
14 R404 27
C251
390P
FL 38 MSI
13 C404 R01
Vref2
39 FIN(L) EQ AMP MAOUT
12
11
R403 910
HD1 40 MSGV(R)
HEAD ASSY NFI(L)
EQOUT(L)
PBOUT(L)
M-OUT(L)
MSGV(S)
EXA1589 N-L
TAI(L)
Vref4
BIAS
TEST TAPE
NC
NC
NC
R402
3R3K
NCT-150
10
2
3
4
1
5
6
8
7
9
C255
(400Hz, 200nWb/m)
C402
R33
C301
R01
R1
18K
R303
R401
16K
15K
R271
R301
16K
3900P
C401
C272
R1
C
0R0
R285
CN251
MUTE
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