Pioneer SX-312R Service Manual

d) PIONEER
The Art of Entertainment
Service
PAZ ETE, anes
ARP2734
STEREO RECEIVER
SX=-312R......
@
Refer
to
the
service
manual
ARP2479
for
SX—311R/KUC
and
SD.
SX —312R HAS THE FOLLOWING :
[type | Power Requirement
AC120V only
AC120V only
AC110V, 120—127V, 220V, 240V (Switchable)
@
This
manual
is
applicable
to
SX—312R/KU,
KC
and
SD.
CONTRAST
OF
MISCELLANEOUS
PARTS
NOTES
:
e
Parts
marked
by
“NSP”
are
generally
unavailable
because
they
are
not
in
our
Master
Spare
Parts
List.
©
The
4,
mark
found
on
some
component
parts
indicates
the
importance
of
the
safety
factor
of
the
part.
Therefore,
when
replacing,
be
sure
to
use
parts
of
identical
designation.
@
Parts
marked
by
“®”
are
not
always
kept
in
stock.
Their
delivery
time
may
be
longer
than
usual
or
they
may
be
unavailable.
SX
—312R/KU,
KC,
SD
and
SX—311R/KUC
have
the
same
construction
except
for
the
following
:
Part No.
$X—311R/KUC| SX—312R/KU | SX-—312R/KC | SX—312R/SD
Symbol & Description
Remarks
COMPLEX assembly AWZ4023 AWZ4023 AWZ4023 AWZ4028 * 1
CONTROL assembly AWZ4019 AWZ4019 AWZ4019 AWZ4082 * 1
VR
assembly
AWZ4024
AWZ4021
AWZ4021
AWZ4021
9k
/10k
assembly
'
AWZ4027
*1
(Channel
step
selector)
Voltage selector AKX— 507
(AC 110V/120— 127V/220V/240V)
Voltage selector AKX1004
(AC110—127V/220—240V}
Note *1 : Refer to “Contrast of all PCB assemblies”.
PIONEER
ELECTRONIC
CORPORATION
4-1,
Meguro
1-Chome,
Meguro-ku,
Tokyo
153,
Japan
PIONEER
ELECTRONICS
SERVICE
INC.
P.O.
Box
1760,
Long
Beach,
California
90801
U.S.A.
PIONEER
ELECTRONICS
OF
CANADA,
INC.
300
Allstate
Parkway
Markham,
Ontario
L3R
0P2
Canada
PIONEER
ELECTRONIC
[EUROPE]
N.V.
Haven
1087
Keetberglaan
1,
9120
Meisele,
Belgium
PIONEER
ELECTRONICS
AUSTRALIA
PTY.
LTD.
178-184
Boundary
Road,
Braeside,
Victoria
3195,
Australia
TEL:
[03]
580-9911
©
PIONEER
ELECTRONIC
CORPORATION
1993

Pioneer SX-312R Specifications

Power

continuous_average_power_output	70 watts per channel
power_requirements_us_canadian	AC 120 Volts, 60 Hz
power_requirements_multi_voltage	AC 110 V/120 V/127 V/220 V/240 V, 50/60 Hz

Frequency Response

phono_riaa_equalization_frequency_response	20 Hz to 20, 000 Hz +0.5 dB
cd_vcr_ld_tape_frequency_response	10 Hz to 70, 000 Hz ±3 dB
fm_tuner_frequency_response	30 Hz to 15 kHz (+1 dB)

Tuner Specifications

fm_tuner_frequency_range	87.5 MHz to 108 MHz
am_tuner_frequency_range_10_khz_step	530 kHz to 1, 700 kHz
am_tuner_frequency_range_9_khz_step	531 kHz to 1, 602 kHz

Weight and Dimensions

weight_without_package	5.8 kg
dimensions_multi_voltage_model	420 (W) x 140 (H) x 289 (D) mm
dimensions_us_canadian_models	420 (W) x 135 (H) x 289 (D) mm

Summary

Contrast of Miscellaneous Parts

Safety Information

Safety Precautions

Checks for customer and service technician protection.

Product Safety Notice

Importance of using specified replacement parts.

Specifications

Amplifier Section

Power output, input, frequency response details.

FM Tuner Section

Reception sensitivity, selectivity, separation specs.

AM Tuner Section

Tuning range, sensitivity, selectivity specs.

Miscellaneous

Power requirements, dimensions, weight, furnished parts.

Exploded Views, Packing and Parts List

Parts list of Exterior and Packing

List of external and packing components with part numbers.

Schematic Diagrams and PCB Connection Diagram

Overall Schematic Diagram

General circuit diagram for the receiver.

Control Assembly, 9k/10k Assembly and VR Assembly

Detailed schematics for specific assemblies.

Complex Assembly (1/2) and SP Switch Assembly

Detailed schematics for complex and SP switch assemblies.

PCB Connection Diagram

Diagrams showing PCB component layouts and connections.

Complex Assembly (2/2) (Tuner Section)

Detailed schematics for the tuner section of the complex assembly.

PCB Parts List

Control Assembly (AWZ4019)

Parts list for the control assembly.

Complex Assembly (AWZ4023)

Parts list for the complex assembly.

Control Assembly (AWZ4082, AWZ4015, AWZ4026)

Parts list for alternative control assemblies.

Complex Assembly (AWZ4028, AWZ4022)

Parts list for alternative complex assemblies.

VR Assembly (SX-251R/KUC)

Parts list for the VR assembly.

SP Switch Assembly (SX-301/KUC, SX-201/KUC and SX - 201/SD)

Parts list for SP switch assemblies.

9k/10k Assembly (SX-311R/SD, SX-201/SD)

Parts list for the 9k/10k assembly.

Adjustments

AM Tuner Adjustment

Procedures for adjusting the AM tuner section.

FM Tuner Adjustment

Procedures for adjusting the FM tuner section.

For SX - 311R/SD, KUC/CA, SX-301/KUC, SX - 251R/KUC, KUC/CA, SX-201/KUC, SD AND KUC/CA Types

Contrast of Miscellaneous Parts

Compares parts across different model types.

Panel Facilities