Sony STR-LV500 Service Manual ▷ View online
STR-LV500
AEP Model
UK Model
SERVICE MANUAL
FM STEREO
FM-AM RECEIVER
Sony Corporation
Home Audio Company
Published by Sony Engineering Corporation
9-877-452-02
2004C02-1
© 2004.03
SPECIFICATIONS
Ver 1.1 2004. 03
Manufactured under license from Dolby Laboratories.
“Dolby”, “Pro Logic” and the double-D symbol are
trademarks of Dolby Laboratories.
“Dolby”, “Pro Logic” and the double-D symbol are
trademarks of Dolby Laboratories.
Amplifier section
POWER OUTPUT
Rated Power Output at Stereo Mode
(8 ohms 1 kHz, DIN)
Rated Power Output at Stereo Mode
(8 ohms 1 kHz, DIN)
50 W + 50 W
Reference Power Output
(4 ohms 1 kHz, DIN)
(4 ohms 1 kHz, DIN)
FRONT
1)
: 75 W + 75 W
CENTER
1)
: 75 W
SURROUND
1)
: 75 W + 75 W
1) Depending on the sound field settings and the source, there may be
no sound output.
Frequency response
no sound output.
Frequency response
20 Hz – 20 kHz
Inputs (Analog)
Sensitivity: 500 mV
Impedance: 50 kilohms
S/N
Impedance: 50 kilohms
S/N
2)
: 84 dB
(A, 500 mV
3)
)
2) INPUT SHORT.
3) Weighted network, input level.
Inputs (Digital)
3) Weighted network, input level.
Inputs (Digital)
DVD (Coaxial)
Impedance: 75 ohms
S/N: 90 dB
(A, 20 kHz LPF)
DVD, TV/SAT,
S/N: 90 dB
HDD/MD (Optical)
(A, 20 kHz LPF)
Sampling frequency
COAX, OPT
COAX, OPT
96 kHz
Outputs
LINE (sub woofer)
LINE (sub woofer)
Voltage: 2 V
Impedance: 1 kilohms
Impedance: 1 kilohms
FM tuner section
Tuning range
87.5 - 108.0 MHz
Antenna terminals
75 ohms, unbalanced
Intermediate frequency
10.7 MHz
Sensitivity
Mono:
Mono:
18.3 dBf, 2.2
µ
V/75 ohms
Stereo:
38.3 dBf, 22.5
µ
V/75 ohms
Useable sensitivity
11.2 dBf, 1
µ
V/75 ohms
S/N
Mono:
Mono:
76 dB
Stereo:
70 dB
Harmonic distortion at 1 kHz
Mono:
Mono:
0.3%
Stereo:
0.5%
Separation
45 dB at 1 kHz
Frequency response
30 Hz – 15 kHz, +0.5/–2 dB
Selectivity
60 dB at 400 kHz
– Continued on next page –
STR-LV500
2
Unleaded solder
Boards requiring use of unleaded solder are printed with the lead-
free mark (LF) indicating the solder contains no lead.
(Caution: Some printed circuit boards may not come printed with
the lead free mark due to their particular size.)
Boards requiring use of unleaded solder are printed with the lead-
free mark (LF) indicating the solder contains no lead.
(Caution: Some printed circuit boards may not come printed with
the lead free mark due to their particular size.)
: LEAD FREE MARK
Unleaded solder has the following characteristics.
• Unleaded solder melts at a temperature about 40
• Unleaded solder melts at a temperature about 40
°C higher than
ordinary solder.
Ordinary soldering irons can be used but the iron tip has to be
applied to the solder joint for a slightly longer time.
Soldering irons using a temperature regulator should be set to
about 350
Ordinary soldering irons can be used but the iron tip has to be
applied to the solder joint for a slightly longer time.
Soldering irons using a temperature regulator should be set to
about 350
°C.
Caution: The printed pattern (copper foil) may peel away if the
heated tip is applied for too long, so be careful!
heated tip is applied for too long, so be careful!
• Strong viscosity
Unleaded solder is more viscous (sticky, less prone to flow) than
ordinary solder so use caution not to let solder bridges occur
such as on IC pins, etc.
ordinary solder so use caution not to let solder bridges occur
such as on IC pins, etc.
• Usable with ordinary solder
It is best to use only unleaded solder but unleaded solder may
also be added to ordinary solder.
also be added to ordinary solder.
Notes on chip component replacement
• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be dam-
• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be dam-
aged by heat.
TABLE OF CONTENTS
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE
WITH MARK 0 ON THE SCHEMATIC DIAGRAMS AND IN THE
PARTS LIST ARE CRITICAL TO SAFE OPERATION. REPLACE
THESE COMPONENTS WITH SONY PARTS WHOSE PART NUM-
BERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLE-
MENTS PUBLISHED BY SONY.
WITH MARK 0 ON THE SCHEMATIC DIAGRAMS AND IN THE
PARTS LIST ARE CRITICAL TO SAFE OPERATION. REPLACE
THESE COMPONENTS WITH SONY PARTS WHOSE PART NUM-
BERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLE-
MENTS PUBLISHED BY SONY.
Specifications ............................................................................ 1
1. GENERAL
...................................................................... 3
2. SERVICING NOTES
................................................... 4
3. TEST MODE
................................................................. 7
4. DIAGRAMS
4-1. IC Pin Function Descriptions .................................. 9
4-2. Block Diagrams – Tuner/DSP Section – ............... 14
Block Diagrams – Display/Power Section – ......... 15
4-3. Printed Wiring Boards
– Digital Section (Side A)– ................................... 16
Printed Wiring Boards
4-2. Block Diagrams – Tuner/DSP Section – ............... 14
Block Diagrams – Display/Power Section – ......... 15
4-3. Printed Wiring Boards
– Digital Section (Side A)– ................................... 16
Printed Wiring Boards
– Digital Section (Side B)– ................................... 17
4-4. Schematic Diagram – Digital Section (1/3)– ........ 18
4-5. Schematic Diagram – Digital Section (2/3)– ........ 19
4-6. Schematic Diagram – Digital Section (3/3)– ........ 20
4-7. Schematic Diagram – Power Section– .................. 21
4-8. Printed Wiring Boards
– Power Section (Side A)– .................................... 22
Printed Wiring Boards
4-5. Schematic Diagram – Digital Section (2/3)– ........ 19
4-6. Schematic Diagram – Digital Section (3/3)– ........ 20
4-7. Schematic Diagram – Power Section– .................. 21
4-8. Printed Wiring Boards
– Power Section (Side A)– .................................... 22
Printed Wiring Boards
– Power Section (Side B)– .................................... 23
4-9. Printed Wiring Boards
– Amp Section (Side A)– ....................................... 24
Printed Wiring Boards
– Amp Section (Side A)– ....................................... 24
Printed Wiring Boards
– Amp Section (Side B)– ....................................... 25
3-10. Schematic Diagram – Amp Section (1/2)– ........... 26
3-11. Schematic Diagram – Amp Section (2/2)– ........... 27
3-12. Printed Wiring Boards – Display Section– ........... 28
3-13. Schematic Diagram – Display Section– ............... 29
3-14. IC Block Diagrams ................................................ 30
3-11. Schematic Diagram – Amp Section (2/2)– ........... 27
3-12. Printed Wiring Boards – Display Section– ........... 28
3-13. Schematic Diagram – Display Section– ............... 29
3-14. IC Block Diagrams ................................................ 30
5. EXPLODED VIEWS
5-1. Front Panel Section ................................................. 31
5-2. Cabinet Section ........................................................ 32
5-2. Cabinet Section ........................................................ 32
6. ELECTRICAL PARTS LIST
.................................... 33
AM tuner section
Tuning range
Tuning range
531 – 1,602 kHz
Antenna
Loop antenna
Intermediate frequency
450 kHz
Usable sensitivity
50 dB/m (at 999 kHz)
S/N
54 dB (at 50 mV/m)
Harmonic distortion
0.5% (50 mV/m, 400 Hz)
Selectivity
At 9 kHz:
At 9 kHz:
35 dB
General
Power requirements
Power requirements
230 V AC, 50/60 Hz
Power consumption
95 W
Power consumption (during standby mode)
0.7 W
Dimensions
430 x 65 x 288 mm
including projecting parts and controls
including projecting parts and controls
Mass (Approx.)
2.7 kg
Supplied accessories
FM wire antenna (1)
AM loop antenna (1)
Remote commander (1)
R6 (size-AA) batteries (2)
Speaker plug (5)
Wrench (1)
FM wire antenna (1)
AM loop antenna (1)
Remote commander (1)
R6 (size-AA) batteries (2)
Speaker plug (5)
Wrench (1)
Design and specifications are subject to change without notice.
STR-LV500
3
SECTION 1
GENERAL
This section is extracted
from instruction manual.
from instruction manual.
Main unit
Display 2
INPUT SELECTOR 3
MUTING 6
PHONES jack 8
PRESET TUNING +/– 4
SOUND FIELD 7
INPUT SELECTOR 3
MUTING 6
PHONES jack 8
PRESET TUNING +/– 4
SOUND FIELD 7
VOLUME 5
?/1 (power) 1
List of button locations and reference pages
ALPHABETICAL ORDER
1
2
3
5
4
6
7
8
STR-LV500
4
SECTION 2
SERVICIN NOTE
1
Remove five screws
(+BVTP 3x8)
2
Isolation sheet
Power board
SERVICE POSITION
• POWER BOARD