PIONEER

PIONEER
CIRCUIT DIAGRAMS VOL. 2
FOR PIONEER AUDIO EQUIPMENTS

C O N T E N T S
§ 1 STEREO RECEIVERS
SX - 34B , SX - 34BK , 3
LX-34B
"'4
SX-34BS 6
SX - 410 8
LX-420A 10
SX - 800 , SX - 2000 , , , 12
SX - 600T 14
SX-1000TA 17
SX-300T 21
LX - SOOT. 28
SX - 700T , SX - 700T/F 3 2
LX - 800T. 37
SX - 1000TD/F , SX - 1000TW/FW 41
SX - 1500 T/F , SX - 1500 T 42
SX - 440/F 47
SX - 440/FVW , SX - 440/KC 56 51
LX - 440/FW '54
KX - 440/FW 57
KX-510 60
SX - 510T 66
SX - 770/FVW 68
SX - 990/FVW 72
SX - 1500TD/FW 78
§ 3 STEREO TAPE DECKS &
STEREO CARTRIGE TAPE PLAYERS
T-500/F 1 1 0
T - 600/F
11 •]
H -60© 112
H - 601©
H2
§ 4 STEREO SYSTEMS (COMPACT &
CONSOLE TYPE)
C - 2000 , S - 450 114
C - 2000s , S - 450s 117
C- 3500 , S - 4600 120
C - 3500s , S - 4600s 123
C - 6000 126
S - 5100 129
C - 5600/F 134
C- 5600/FSA 138
§ 2 STEREO AMPLIFIERS & STEREO
TUNERS
SA-400 85
SA-810/F,SA-810 86
SA - 500/F , SA - 500/KC 87 88
SA - 700/F , SA - 700/K 9091
SA - 900/F , SA - 900/KC
94^95
§ 5 OTHER AUDIO EQUIPMENT
IS-31 141
IS -80 '144
IS-70 145
SR-202 146
SC - 100 (Stereo Preamplifier) 98
SM - 100 (Stereo Power Amplifier) 99
TX-400 100
TX - 500/F , TX - 500/KC . 101 102
TX - 900/F , TX - 900/KC 104'105

SECTION 1
STEREO
RECEIVERS
MODEL SX-1500T

Model
SX-34B, SX-34BK

IVIodsl L X ~ 34B

FM FRONTEND AMOI!9
MPX UNIT AMO I 30

Model
SX-34Bs

FM FRONTEND AMOI 60
MPX UNIT AMO I 30

Model SX-4 I 0

FM FRONTEND W I 1-016

Model
LX-420A

FM FRONTEND AMOI 27
MPX UNIT AMO I 57

Model
SX-800A, SX-2000

FM FRONTEND AMOI 20
MPX UNIT AMO I 29

Model
SX-600T

AM TUNER UNIT AMO I 24
FM FRONTEND AMOI I 6

FM IF UNIT AM 0 I 23U
MPX UNIT AM 0 I I 4

Model SX- I OOOTA

AM TUNER UNIT WI 4-004
FM FRONTEND WI 1-013

FM IF UNIT WI 2-006
MPX UNIT W I 3-0 I 9

NOTE:
There to different circuit diagrams for SX-300T .
Make sure that you refer to the circuit diagram
for the model of your
SX-300T.
MODEL
SX-300T

Model
SX-300T

AM TUNER UNIT AMO I 43
FM FRONTEND AMOI 54

FM IF UNIT AMO I 64
MPX UNIT AMO I 55

Model SX-300T (New type)

PRE AMP UNIT W I 5-00 I CONTROL AMP UNIT Wl 5-0 I 3
MAIN AMP UNIT Wl 5-0 I 4
POWER SUPPLY
W I 6-002
UNIT

AM TUNER UNIT W14-003
FM FRONTEND WI 1-019

FM IF UNIT WI2-0I3
MPX UNIT Wl 3-020
SWITCHING UNIT WI3-0I7

Model
LX-300T

PRE AMP UNIT W I 5-00 I CONTROL AMP UNIT
WI5-0I3
MAIN AMP UNIT Wl 5-0 I 4
POWER SUPPLY
W I 6-002
UNIT

AM TUNER UNIT WI 4-009
FM FRONTEND WI 1-019

FM IF UNIT W I 2-02 I
MPX UNIT W I 3-020
SWITCHING UNIT W I 3-0 I 7
COIL UNIT W I 8-009

Model
SX-700T, SX-700 p

AM TUNER UNIT W14-004
FM FRONTEND
Wl I -02 I

FM IF UNIT WI 2-009
MPX UNIT W I 3-02 I

PRE AMP UNIT WI 5-005 CONTROL AMP UNIT W I 5-047
MAIN AMP UNIT WI 5-009
POWER SUPPLY UNIT
W I 6-008

NOTE:
If your set is provided with the CONTROL AMP UNIT and the FILTER UNIT separately, refer to
the following circuit diagrams.
CONTROL AMP UNIT WI 5-006
P.T.F. UNIT
WI5-0I0

IVI o d e I DC ~ 8^)^)T

AM TUNER UNIT WI 4-006
FM FRONTEND WI I -029

FM IF UNIT W12-020
MPX UNIT W I 3-02 I

HEAD AMP UNIT WI 5-048
CONTROL AMP UNIT W I 5-047
EUPHONIC UNIT W I 5-036
MAIN AMP UNIT WI 5-046
POWER SUPPLY UNIT
WI 6-0 I 3

Model SX- I OOOTD-, SX- I OOOTW/fw
(

Model SX- I 500T©, SX- I 500T

AM TUNER UNIT WI 4-004
FM FRONTEND Wl I -028

FM IF UNIT W12-020
MPX UNIT W I 3-02 I

HEAD AMP UNIT W I 5-089 CONTROL AMP UNIT Wl 5-090
MAIN AMP UNIT W I 5-09 I
POWER SUPPLY UNIT
Wl 6-0 I 0

NOTE:
If your set is provided with the CONTROL AMP UNIT and the FILTER UNIT
separately, refer to the following circuit diagrams.
CONTROL AMP UNIT Wl 5-031
FILTER UNIT W I 5-0 10

Model SX-440 F

TUNER UNIT W35-007

AUDIO UNIT W I 5-043
POWER SUPPLY UNIT W I 6-0 I 9

Model KX-440 / FVW

Model SX-440 KC

TUNER UNIT W35-007

AUDIO UNIT W I 5-073
POWER SUPPLY UNIT WI6-02I

Model LX-440 Vw

TUNER UNIT W35-009

AUDIO UNIT W I 5-073
AM UNIT W I 4-0 I 4
POWER SUPPLY
W I 6-02 I
UNIT

Model
KX-440/fw

TUNER UNIT W35-0 I 3

AUDIO UNIT W I 5-073
AM UNIT W I 4-0 I 3
POWER SUPPLY
Wl 6-02 I
UNIT

Model KX-5 10

AM FRONTEND W I 8-007
AM IF UNIT WI 4-007

FM FRONTEND Wl I -030
6
FM IF UNIT WI 2-024

MPX UNIT W I 3-024
POWER SUPPLY
WI6-0I I
UNIT

HEAD AMP UNIT WI 5-032
CONTROL AMP UNIT WI 5-033

MAIN AMP UNIT WI 5-034

Model
SX-5 I OT

NOTE:
When you check the circuit of any other unit than the FM IF UNIT, refer to the circuit diagrams for Model KX-510.
FM IF UNIT W I 2-0 I 9

Model
SX-770/FVW

FM FRONTEND Wl I -035
TUNER UNIT W35-0 I 2

MUTING UNIT W I 8-0 I I OR W I 8-026
MPX UNIT W I 3-024

HEAD AMP UNIT WI 5-032
CONTROL AMP UNIT
W I 5-033
MAIN AMP UNIT WI 5-085
POWER SUPPLY UNIT
W I 6-024

Model SX-990 / FVW

FM FRONTEND WI 1-028
FM IF UNIT WI 2-025

MUTING UNIT
OR W I 8-026
W I 8-0 I I
INDICATOR UNIT W I 8-0 I 2
MPX UNIT W I 3-024

AM TUNER UNIT WI 4-008
POWER SUPPLY UNIT WI 6-022

HEAD AMP UNIT WI 5-049
PUSH SWITCH UNIT W I 5-081
CONTROL
Wl 5-080
UNIT
CONTROL AMP UNIT
WI 5-079

PUSH SWITCH
Wl 5-082
UNIT
MAIN AMP UNIT WI 5-060

Model
SX- I 500TD/FW

AM TUNER UNIT WI 4-008
FM FRONTEND Wl I -028

FM IF UNIT WI 2-025
INDICATOR UNIT WI8-0I2
MUTING UNIT W I 8-026

FM MPX UNIT W13-024
PUSH SWITCH UNIT Wl 5-081
HEAD AMP UNIT W2I-00I

CONTROL AMP UNIT
W I 5-079
CONTROL UNIT W I 5-080
PUSH SWITCH UNIT Wl 5-082
MIC AMP UNIT WI5-I06

MAIN AMP UNIT W23-002
POWER SUPPLY UNIT
Wl 6-026

SECTION 2
STEREO AMPLIFIERS & STEREO TUNERS
MODEL SA-900
MODEL TX-900

STEREO AMPLIFIER Model
SA"400

Model
SA-8 10 f),SA-8I0

Model
SA-500/F

Model
SA-500/KC

HEAD AMP UNIT WI 5-032 CONTROL AMP UNIT
W I 5-033
MAIN AMP UNIT Wl 5-055
PUSH SWITCH UNIT WI 5-075

Model S A- 700/V

Model SA-700 K

MC AMP UNIT WI 5-068
HEAD AMP UNIT WI 5-049
CONTROL AMP UNIT WI 5-050
PUSH SWITCH UNIT WI 5-070

MAIN AMP UNIT WI 5-060
POWER SUPPLY UNIT W I 6-0 I 8

Model SA-900 f

Model
SA-900/KC

MC AMP UNIT WI 5-058 HEAD AMP UNIT WI 5-056
CONTROL AMP UNIT WI 5-050
DEMI-SWITCH UNIT W I 5-069

MAIN AMP UNIT WI 5-052
FILTER UNIT W I 5-059
POWER SUPPLY
Wl 6-0 I 7
UNIT

STEREO PREAMPLIFIER Model SO I 00

STEREO POWER AMPLIFIER Model SM" I 00

STEREO TUNER Model
TX-400

Model TX-500 F
AF UNIT W I 5-07 I

Model TK-500 kc

TUNER UNIT W35-007

Model TX- 900/F

Model
TX-900/KC

AM TUNER UNIT W 3 4-0 I I
FM FRONTEND WI I -033

FM IF UNIT WI 2-023
MPX UNITWI3-02I. Wl 3-025

INDICATOR UNIT WI8-0I0
DEMI-SWITCH UNIT W I 5-066
AF UNIT Wl 5-067
POWER SUPPLY UNIT
W I 6-020

SECTION 3
STEREO TAPE DECKS & STEREO CARTRIDGE
TAPE PLAYERS
MODEL H-60 E

STEREO TAPE DECK Model T"500 F

Model
T-600F

STEREO CARTRIDGE TAPE PLAYER Model
H"60©
Model
H-601 F