Pioneer VSX-456 Service Manual

Service
ORDER NO.
RRV1713
AUDIO/VIDEO STEREO RECEIVER
VSX-D506S
VSX-456
THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).
Type Power Requirement
VSX-D506S VSX-456
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6.
ADJUSTMENT
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7.3
REMOTE
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8. PANEL FACILITIES AND SPECIFICATIONS . 65
PIONEER ELECTRONIC CORPORATION 4-1, Meguro 1-Chome, Meguro-ku, Tokyo 153, Japan
PIONEER ELECTRONICS SERVICE, INC. P.O. Box 1760, Long Beach, CA 90801-1760, U.S. A.
PIONEER
ELECTRONIC
(EUROPE)
N.V.
—_
Haven
1087
Keetbergiaan
1,
9120
Melsele,
Belgium
PIONEER
ELECTRONICS
ASIACENTRE
PTE.
LTD.
—_
501
Orchard
Road,
#10-00
Lane
Crawford
Place,
Singapore
0923

Pioneer VSX-456 Specifications

General

Channels	5.1
Type	AV Receiver
Power Output (per channel)	100 W
Total Harmonic Distortion (THD)	0.08%
Input Sensitivity	200 mV
Input Impedance	47 kΩ
Signal-to-Noise Ratio	98 dB
Tuner Type	AM/FM
Preset Stations	30
Frequency Response	5 Hz - 100 kHz (+0 dB, -3 dB)
Speaker Impedance	6-16 Ohms

Summary

1. SAFETY INFORMATION

1. SAFETY PRECAUTIONS

Safety precautions for customer and technician, including leakage current checks.

2. PRODUCT SAFETY NOTICE

Notice about special safety characteristics of parts and potential hazards.

2. EXPLODED VIEWS AND PARTS LIST

2.1 PACKING

Information regarding product packing and components.

2.2 EXTERIOR

Diagram showing external components and their assembly.

3. SCHEMATIC DIAGRAM

3.1 OVERALL CONNECTION DIAGRAM

Diagram showing interconnections between major circuit boards.

3.3 INPUT ASSY (1/3)

Schematic for the input assembly.

3.4 INPUT ASSY (2/3), TRANS ASSY AND MOS FET ASSY

Schematics for input, trans, and MOS FET assemblies.

3.5 INPUT ASSY (3/3), FRONT INPUT ASSY AND REG.1 ASSY

Schematics for input, front input, and regulator assemblies.

3.6 PRO LOGIC ASSY

Schematic for the Pro Logic assembly.

3.7 VOLUME ASSY

Schematic for the volume assembly.

3.8 R/C SPEAKER ASSY

Schematic for the R/C speaker assembly.

3.9 R/C AMP ASSY

Schematic for the R/C amplifier assembly.

3.10 VIDEO SR ASSY AND PRIMARY ASSY

Schematics for Video SR and Primary assemblies.

3.11 FM/AM TUNER MODULE

Schematic for the FM/AM tuner module.

4. PCB CONNECTION DIAGRAM

4.1 R/C SPEAKER ASSY AND MOS FET ASSY

PCB connection diagrams for R/C speaker and MOS FET assemblies.

4.2 POWER SWITCH ASSY AND FRONT INPUT ASSY

PCB connection diagrams for power switch and front input assemblies.

4.3 FL/U-COM ASSY

PCB connection diagram for the FL/U-COM assembly.

4.5 TRANS ASSY, REG.1 ASSY AND PRIMARY ASSY

PCB connection diagrams for Trans, Reg.1, and Primary assemblies.

4.6 VOLUME ASSY

PCB connection diagram for the volume assembly.

4.7 R/C AMP ASSY

PCB connection diagram for the R/C amplifier assembly.

4.8 PRO LOGIC ASSY

PCB connection diagrams for the Pro Logic assembly.

4.9 FM/AM TUNER MODULE

PCB connection diagram for the FM/AM tuner module.

4.10 VIDEO/SR ASSY

PCB connection diagrams for the Video/SR assembly.

5. PCB PARTS LIST

6. ADJUSTMENT

6.1 TUNER SECTION

Adjustment procedures for FM and AM tuner sections.

7. GENERAL INFORMATION

7.1 PARTS

Information on general parts and IC component details.

7.1.2 DISPLAY

Details of the FL display and its pin assignments.

7.2 BLOCK DIAGRAM

Block diagram illustrating the unit's functional sections and interconnections.

7.3.1 REMOTE CONTROL EXPLODED VIEW AND PARTS LIST

Exploded view and parts list for the remote control unit.

7.3.2 REMOTE CONTROL SCHEMATIC AND PCB DIAGRAMS

Schematic and PCB diagrams for the remote control unit.

7.3.3 REMOTE CONTROL PCB PARTS LIST

Parts list for the remote control unit's PCB.

8. PANEL FACILITIES AND SPECIFICATIONS

VSX-D506S and VSX-456 Panel Layout

Overview of front panel indicators and controls for both models.

VSX-D506S Front Panel Details

Detailed explanation of the VSX-D506S front panel controls and indicators.

VSX-456 Front Panel Details

Detailed explanation of the VSX-456 front panel controls and indicators.