SONY STR VX500 Service Manual

STR-VX500

SERVICE MANUAL

This set is the tuner and amplifier
section in MHC-VX500.

SPECIFICATIONS

Amplifier section

The following measured at AC 120, 220, 240V 50/60 Hz
DIN power output (Rated) (FRONT)

120 + 120W (6 Ω at 1kHz DIN)

Continuous RMS power output (Reference)

FRONT SPEAKER: 150 + 150W
(6 Ω at 1kHz, 10% THD)

Inputs MD/VIDEO 1 IN (phono jacks): voltage

450/250mV, impedance 47kΩ
AV INPUT AUDIO (phono jacks): voltage
250mV, impedance 47kΩ
MIX MIC 1/2 (phone jack): sensitivity 1mV,
impedance 10kΩ

Output MD/VIDEO 1 OUT (phono jacks): voltage

450/250mV, impedance 1kΩ
PHONES (stereo phone jack): accepts
headphones of 8Ω or more.
FRONT SPEAKER:
accepts impedance of 6 to 16Ω
REAR SPEAKER:
accepts impedance of 16Ω
SUPER WOOFER:
Voltage 1V, impedance 1kΩ

Tuner section

FM stereo, FM/AM superheterodyne tuner

FM tuner section

Tuning range 87.5 – 108.0MHz
Antenna terminals 75Ω unbalanced
Intermediate frequency 10.7MHz

AM tuner section

Tuning range MW: 531 – 1,602kHz (with the MW tuning

Intermediate frequency 450kHz
Antenna AM loop antenna External antenna terminal

General

Power requirements 120V, 220V or 230 – 240V AC, 50/60Hz

Power consumption 290W
Dimensions (w/h/d) Approx. 288 × 205 × 375mm
Mass Approx. 8.6kg

E Model

interval set at 9kHz)
530 – 1,710kHz (with the MW tuning
interval set at 10kHz)
SW: 5.95 – 17.90MHz (with the SW tuning
interval set at 5kHz)

Adjustable with voltage selector

MICROFILM

Design and specifications are subject to change without notice.

FM STEREO/FM-AM RECEIVER

STR-VX500

4-4. SCHEMATIC DIAGRAM MAIN (1/2) SECTION

• Refer to page 27 for IC Block Diagrams.

1414

STR-VX500

4-5. SCHEMATIC DIAGRAM MAIN (2/2) SECTION

• Refer to page 13 for Printed Wiring Board.

• Refer to page 27 for IC Block Diagrams.

The components identified by mark ! or dotted
line with mark ! are critical for safety.
Replace only with part number specified.

Q854

0.8
BN1F4M

R857
22k

0

0.1

Q855
2SC2958L
RELAY SWITCH

1515

STR-VX500

4-6. SCHEMATIC DIAGRAM POWER AMP SECTION

The components identified by mark ! or dotted
line with mark ! are critical for safety.
Replace only with part number specified.

1616