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Front Speaker:
The following measured at AC 120/220/240 V,
50Hz
DIN power output (Rated)

150 + 150 watts
(6 ohms at 1 kHz, DIN)

Continuous RMS power output (Reference)

200 + 200 watts
(6 ohms at 1 kHz, 10%
THD)

Center Speaker:
DIN power output (Rated)

35 watts
(8 ohms at 1 kHz, DIN)

Continuous RMS power output (Reference)

50 watts
(8 ohms at 1 kHz, 10%
THD)

Rear Speaker:
DIN power output (Rated)

35 + 35 watts
(8 ohms at 1 kHz, DIN)

Continuous RMS power output (Reference)

50 + 50 watts
(8 ohms at 1 kHz, 10%
THD)

Inputs
PHONO IN (phono jacks):sensitivity 3 mV,

impedance 47 kilohms

MIC 1/2 (phone jack):

sensitivity 1 mV,
impedance 10 kilohms

VIDEO1 IN (phono jacks): sensitivity 250 mV,

impedance 47 kilohms

VIDEO2 IN (phono jacks): sensitivity 250 mV,

impedance 47 kilohms

MD IN (phono jacks):

sensitivity 450 mV,
impedance 47 kilohms

DVD INPUT
FRONT, REAR, CENTER, WOOFER (phono jacks):

sensitivity 450 mV,
impedance 47 kilohms

Outputs
PHONES (stereo phone jack):

accepts headphones of 8
ohms or more

VIDEO OUT (phono jack):

voltage 250 mV,
impedance 1 kilohm

MD OUT (phono jacks):

voltage 250 mV,
impedance 1 kilohm

WOOFER OUT (phono jack):

voltage 1 V, impedance
1 kilohm

FRONT SPEAKER:

accepts impedance of 6 to
16 ohms

CENTER SPEAKER:

accepts impedance of 8 to
16 ohms

REAR SPEAKER:

accepts impedance of 8 to
16 ohms

Inputs
VIDEO1 IN (phono jacks): 1 V p-p, 75 ohms
VIDEO2 IN (phono jacks): 1 V p-p, 75 ohms

Outputs
VIDEO OUT (phono jack):1 V p-p, 75 ohms
S-VIDEO OUT (4-pin/mini-DIN jack):

Y: 1V p-p, unbalanced,
Sync negative,
C: 0.286 V p-p,
load impedance 75 ohms

System

Compact disc and digital
audio system

Laser

Semiconductor laser
(  = 780 nm)
Emission
duration: continuous

Laser output

Max. 44.6  W*
* This output is the value
measured at a distance of
200 mm from the
objective lens surface on
the Optical Pick-up Block
with 7 mm aperture.

Wavelength

780 – 790 nm

Frequency response

2 Hz – 20 kHz (

±0.5 dB)

Signal-to-noise ratio

More than 90 dB

Dynamic range

More than 90 dB

Video color system format

NTSC, PAL

E Model

Manufactured under license from Dolby
Laboratories Licensing Corporation.
“DOLBY” and the double-D symbol ; are
trademarks of Dolby Laboratories Licensing
Corporation.

Model Name Using Similar Mechanism

HCD-VR90AV

CD

CD Mechanism Type

CDM37L-5BD34L

Section

Base Unit Name

BU-5BD34L

Optical Pick-up Name

KSS-213D/Q-NP

Tape deck

Model Name Using Similar Mechanism

NEW

Section

Tape Transport Mechanism Type

TCM-230PWR12

• HCD-LV100AV is the Amplifier, CD player,

Tape Deck and Tuner section in LBT-LV100AV.

— Continued on next page —

2

Recording system

4-track 2-channel stereo

Frequency response (DOLBY NR OFF)

40 – 13,000 Hz (

±3 dB),

using a Sony TYPE I
cassette
40 – 14,000 Hz (

±3 dB),

using a Sony TYPE II
cassette

FM stereo, FM/AM superheterodyne tuner

FM tuner section
Tuning range

87.5 – 108.0 MHz (50 kHz
step)

Antenna

FM wire antenna

Antenna terminals

75 ohm unbalanced

Intermediate frequency

10.7 MHz

AM tuner section
Tuning range
Middle Eastern model:

531 – 1,602 kHz
(with the tuning interval
set at 9 kHz)

Other models:

531 – 1,602 kHz
(with the tuning interval
set at 9 kHz)
530 – 1,710 kHz
(with the tuning interval
set at 10 kHz)

Antenna

AM loop antenna,
External antenna
terminals

Intermediate frequency

450 kHz

CD DIGITAL OUT
(square optical connector jack, rear panel)
Wave length:

660 nm

Output level:

–18 dBm

Power requirements

120 V, 220 V, or 230 –
240 V AC, 50/60 Hz
Adjustable with voltage
selector

Power consumption

230 watts

Dimensions (w/h/d)

Approx. 356 

× 423  × 446

mm incl. projecting parts
and controls

Mass

Approx. 15.7 kg

Supplied accessories

AM loop antenna (1)
FM wire antenna (1)
Speaker cords (2)
Remote (1)
R6 (size AA) batteries (2)

Design and specifications are subject to change
without notice.

1.

Check the area of your repair for unsoldered or poorly-soldered
connections.  Check the entire board surface for solder splashes
and bridges.

2.

Check the interboard wiring to ensure that no wires are
"pinched" or contact high-wattage resistors.

3.

Look for unauthorized replacement parts, particularly
transistors, that were installed during a previous repair.  Point
them out to the customer and recommend their replacement.

4.

Look for parts which, through functioning, show obvious signs
of deterioration.  Point them out to the customer and
recommend their replacement.

After correcting the original service problem, perform the following safety
checks before releasing the set to the customer.

5.

Check the B+ voltage to see it is at the values specified.

6.

Flexible Circuit Board Repairing

• Keep the temperature of the soldering iron around 270˚C

during repairing.

• Do not touch the soldering iron on the same conductor of the

circuit board (within 3 times).

• Be careful not to apply force on the conductor when soldering

or unsoldering.

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 NUMBERS
APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS
PUBLISHED BY SONY.

4-227-751-4

π MY, SP

4-227-751-5

π EA

4-227-751-7

π IA

PARTS No.

MODEL

• Abbreviation

EA

: Saudi Arabia model.

SP

: Singapore model.

MY

: Malaysia model.

IA

: Indonesian model.

3

......................................................................

4

.............................................................

7

.......................................................... 11

............................ 15

............................. 15

6-1. Circuit Boards Location ·············································· 20
6-2. Block Diagrams ··························································· 21
6-3. Schematic Diagram     Video Board (1/2) ··················· 25
6-4. Schematic Diagram     Video Board (2/2) ··················· 26
6-5. Printed Wiring Board     Video Board ························· 27
6-6. Printed Wiring Board     BD Board ····························· 28
6-7. Schematic Diagam     BD Board ································· 29
6-8. Printed Wiring Baord     CD Motor Section ················ 30
6-9. Schematic Diagram     CD Motor Section ··················· 31
6-10. Printed Wiring Board     Audio Board ························· 32
6-11. Schematic Diagram     Audio Board ···························· 33
6-12. Printed Wiring Board     Leaf SW Board ···················· 34
6-13. Schematic Diagram     Leaf SW Board ······················· 34
6-14. Printed Wiring Board     Main Board ·························· 35
6-15. Schematic Diagram     Main Board (1/3) ···················· 36
6-16. Schematic Diagram     Main Board (2/3) ···················· 37
6-17. Schematic Diagram     Main Board (3/3) ···················· 38
6-18. Printed Wiring Board     Panel FL Board ···················· 40
6-19. Schematic Diagram     Panel FL Board ······················· 41
6-20. Printed Wiring Board     Panel VR Board ···················· 42
6-21. Schematic Diagram     Panel VR Board ······················ 43
6-22. Printed Wiring Board

TC-A/TC-B/CD-L/CD-L2/CD-R/CD-R2 Boards ······· 44

6-23. Schematic Diagram

TC-A/TC-B/CD-L/CD-L2/CD-R/CD-R2 Boards ······· 45

6-24. Printed Wiring Board

Front Input/Headphone/MIC Boards ··························· 46

6-25. Schematic Diagram

Front Input/Headphone/MIC Boards ··························· 47

6-26. Printed Wiring Board     PA Board ······························ 48
6-27. Schematic Diagram     PA Board ································· 49
7-28. Printed Wiring Board     Surround Board ···················· 50
6-29. Schematic Diagram     Surround Board ······················· 51
6-30. Printed Wiring Board     Trans/Sub Trans Boards ······· 52
6-31. Schematic Diagram     Trans/Sub Ttrans Boards ········· 53
6-32. IC Block Diagrams ······················································ 54
6-33. IC Pin Function Description ········································ 56

................................................... 64

................................... 72

This appliance is classified as a CLASS 1 LASER product.
The CLASS 1 LASER PRODUCT MARKING is located on
the rear exterior.

Laser component in this product is capable of emitting radiation
exceeding the limit for Class 1.

The following caution label is located inside the unit.

The laser diode in the optical pick-up block may suffer electrostatic
break-down because of the potential difference generated by the
charged electrostatic load, etc. on clothing and the human body.
During repair, pay attention to electrostatic break-down and also
use the procedure in the printed matter which is included in the
repair parts.
The flexible board is easily damaged and should be handled with
care.

NOTES  ON  LASER  DIODE  EMISSION  CHECK
The laser beam on this model is concentrated so as to be focused on
the disc reflective surface by the objective lens in the optical pick-
up block. Therefore, when checking the laser diode emission,
observe from more than 30 cm away from the objective lens.

Notes on chip component replacement
• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be dam-

aged by heat.

Flexible Circuit Board Repairing
• Keep the temperature of the soldering iron around 270 ˚C dur-

ing repairing.

• Do not touch the soldering iron on the same conductor of the

circuit board (within 3 times).

• Be careful not to apply force on the conductor when soldering

or unsoldering.

CAUTION
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous
radiation exposure.

4

1

?/1 (POWER) button

2

DAILY button

REC button

SLEEP button

c

/CLOCK SET button

3

TUNER/BAND button

TUNING +/– button

ENTER/NEXT button

TUNER MEMORY button

STEREO/MONO button

TUNING MODE button

PTY button

4

Display

5

v/B/V/b button

6

SYNC EQ button

SYNC BASS button

SURROUND button

MIX GUITAR/KARAOKE button

7

KEY CONTROL #/2 button

8

FUNCTION button

9

VOLUME control

0

PHONES jack

qa

DECK B operating button

g button

G button

x button

m button

M button

X button

z REC button

HI SPEED DUB button

CD SYNC button

qs

. AMS > control

qd

CD operating button

G X button

x button

m button

M button

DISC SKIP button

qf

VIDEO 2 INPUT jack

qg

PLAY MODE button

REPEAT button

qh

ACTIVE button

SELECT button

RETURN button

PREV

button

NEXT

button

qj

DECK B

qk

Z A EJECT

Z B EJECT

ql

DECK A

w;

DISC1-5 button

wa

LOOP button

FLASH button

NON-STOP button

EDIT button

ws

SUPPER WOOFER MODE button

MIC LEVEL control

GUITAR LEVEL contro

wd

DECK A operating button

g button

G button

x button

m button

M button

DIRECTION button

DOLBY NR button

wf

MIC MIX jack

GUITAR jackl

wg

EFFECT button

GROOVE button

SUPER WOOFER button

wh

POWER SAVE/DEMO (STAND BY) button

DISPLAY button

SPECTRUM ANALYZER button

1

2

3

4

5

6

9

qa

0

qd

qf

8

7

qg

qj

qk

ql

wa

ws

wd

wf

wg

wh

qs

w;

qh