Sony TA-VE150 User manual

MICROFILM

SERVICE MANUAL

INTEGRATED AV AMPLIFIER

AEP Model

UK Model

Amplifier section

Power output

Stereo mode (DIN 1 kHz, 8 ohms)

25 W +25 W

Surround mode (DIN 1 kHz, 8 ohms)

Front: 25 W/ch

Centre: 25 W

Rear: 25 W/ch

5.1 CH (DIN 1 kHz, 8 ohms)

INPUT/DVD mode Front: 25 W/ch

Centre: 25 W

Rear: 25 W/ch

Frequency response TV, VIDEO, DVD-2CH,

5.1 CH INPUT/DVD:

20 Hz-50 kHz ±1 dB

Inputs

Sensitivity Impedance S/N

(weighting network, input level)

TV, VIDEO, DVD-2CH, 200 mV 50 82 dB*

5.1 CH INPUT/DVD kilohms (A, 150 mV)

*’78 IHF

Outputs VIDEO (AUDIO OUT):

Voltage 200 mV,

Inpedance 10 kilohms

WOOFER/AUDIO OUT:

Voltage: 2 V

Impedance: 1 kilohms

Muting Full mute

BASS BOOST +9 dB at 70 Hz

General

Power requirements 230 V AC, 50/60 Hz

Power consumption 115 W

Dimensions 430 ×274 ×64.5 mm

Mass (Approx.) 5.4 kg

Supplied accessories Remote controller

(remote) (1)

Size AA (R6) batteries (2)

Scart adaptor (1)

Design and specifications are subject to change without notice.

Specifications indicated are measured at 230VAC, 50 HZ.

SPECIFICATIONS

TA-VE150

This amplifier has the Dolby Surround system.

Manufactured under license from Dolby Laborato-

ries Licensing Corporation.

“Dolby”, the double-D symbol aand “Pro Logic”are

trademarks of Dolby Laboratories Licensing Corpo-

ration.

– 2 –

TABLE OF CONTENTS

1. GENERAL .................................................................. 3

2. DISASSEMBLY ......................................................... 4

3. TEST MODE.............................................................. 5

4. DIAGRAMS ................................................................. 6

4-1. Notes for Printed Wiring Board

and Schematic Diagram .................................................. 7

4-2. Printed Wiring Board – MAIN Section – ...................... 11

4-3. Schematic Diagram – MAIN Section (1/2) –................ 13

4-4. Schematic Diagram – MAIN Section (2/2) –................ 15

4-5. Printed Wiring Boards – PANEL Section – .................. 17

4-6. Schematic Diagram – PANEL Section – ....................... 19

4-7. Printed Wiring Boards – POWER Section – ................. 21

4-8. Schematic Diagram – POWER Section – ..................... 23

4-9. IC Pin Function Description ........................................... 25

5. EXPLODED VIEWS................................................ 27

6. ELECTRICAL PARTS LIST ............................... 29

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.

SAFETY-RELATED COMPONENT WARNING!!

COMPONENTS IDENTIFIED BY A !MARK ONTHE SCHEMATIC

DIAGRAMS, EXPLODED VIEWS AND IN THE PARTS LIST ARE

CRITICAL TO SAFE OPERATION. REPLACE THESE COMPO-

NENTSWITH SONY PARTSWHOSE PART NUMBERS APPEAR

AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUB-

LISHED BY SONY.

– 3 –

SECTION 1

GENERAL

1I /ubutton

23 STEREO indicator

3NORMAL indicator

4WIDE indicator

5PHANTOM indicator

6Remote sensor

7Display window

8SIMULATED indicator

9C. STUDIO indicator

!º PRO LOGIC indicator

15.1 CH INPUT/DVD jacks

2DVD 2 CH jacks

3VIDEO jacks

4TV jacks

Location of controls

— Front view —

— Rear view —

!¢ !∞ !§ !¶ !• !ª

2 3 4 5 6 7 8 9 !º !¡ !™ !£

!¡ BASS BOOST indicator

!™ MUTING indicator

!£ MASTER VOLUME dial

!¢ CENTER MODE button

!∞ TV button

!§ VIDEO button

!¶ DVD, 2 CH button

!• 5.1 CH INPUT, DVD button

!ª SURROUND MODE button

1 2 3 4 5 6 7 8

5WOOFER jack

6FRONT SPEAKERS terminals

7REAR SPEAKERS terminals

8CENTER SPEAKER terminals

– 4 –

CASE, FRONT PANEL SECTION

MAIN BOARD

Note: Follow the disassembly procedure in the numerical order given.

SECTION 2

DISASSEMBLY

case

tapping screws

three screws

(BVTP3 x8)

open the case

claw

flat wire

(CNS301)

two tapping screws

two tapping screw

flat wire

(CNS302)

claw

front panel section

5

Remove the

MAIN board

to direction of

the arrow

1

connector

(CNS800)

1

connector

(CNP802)

4

six screws

(BVTP3 x8)

2

two screws

(BVTP3 x8)

4

six screws

(BVTP3 x8

)

3

DC fan

1

connector

(CNS801)

– 5 –

SECTION 3

TEST MODE

This equipment is provided with a test mode built in the micro-

computer. The contents are described in the following.

[Initial Mode]

Press I/ubutton while pressing both [VIDEO] and

[5.1CHINPUT,DVD] buttons simultaneously.

2. “INITIAL” is displayed on the fluorescent indicator tube, and

the status of the unit is set in the following.

• All Memory is clear.

• Center, rear level set to 0.

• Center mode set to Phantom.

• DBFB clear.

• Muting clear.

• Volume level set to min.

[Factory Mode]

Press

button while pressing three buttons of

[TV]

[DVD,2CH]

, and

[5.1CHINPUT,DVD]

simultaneously.

2. Factory setting same as initial except center mode set to nor-

mal using jog can set to volume max or min directly.

[FL Check Mode]

1. Press

button while both

[

CENTERMODE

]

and

[VIDEO]

buttons simultaneously.

2. Fluorescent indicator tube and LED are checked, “FINISH” is

displayed and the status of the unit is set back in normal con-

dition.

[Gain Up Mode]

1. Press

button while pressing

[

SURROUNDMODE

]

but-

ton.

2. “GAIN UP” is displayed on the fluorescent indicator tube and

the rear is gained up 3 dB.

3. To exit from this mode, press two buttons in the same manner

as step1.

“NORMAL” is displayed on the fluorescent indicator tube and

the status of the unit is set back in normal condition.

[Version Mode]

1. Press

button while pressing both

[

CENTERMODE

]

and

[

SURROUNDMODE

]

buttons simultaneously.

2. Version of its destination is displayed on the fluorescent indi-

cator tube.

– 6 –

• Circuit Boards Location

SECTION 4

DIAGRAMS

POWER SW borad

DISPLAY board

JOG board

MAIN boar

STANDBY board

PRIMARY board

SECONDARY board

– 7 –

4-1. NOTES FOR PRINTED WIRING BOARD AND SCHEMATIC DIAGRAM

Note on Schematic Diagram:

• All capacitors are in µF unless otherwise noted. pF: µµF

50 WV or less are not indicated except for electrolytics

and tantalums.

• All resistors are in Ωand 1/4W or less unless otherwise

specified.

•¢: internal component.

•2: nonflammable resistor.

•C: panel designation.

Note on Printed Wiring Board:

•X: parts extracted from the component side.

•p: parts mounted on the conductor side.

•b: Pattern from the side which enables seeing.

• Indication of transistor.

•U: B+ Line.

•V: B– Line.

• Voltages and waveforms are dc with respect to ground

under no-signal conditions.

no mark :VIDEO

• Voltages aretakenwithaVOM(Input impedance10 MΩ).

Voltage variations may be noted due to normal produc-

tion tolerances.

• Waveforms are taken with a oscilloscope.

Voltage variations may be noted due to normal produc-

tion tolerances.

• Circled numbers refer to waveforms.

• Signal path.

F: FRONT/AUDIO IN

f: REAR

E: CENTER

j:WOOFER

Note: The components identified by mark !or dotted line

with mark !are critical for safety.

Replace only with part number specified.

BThese are omitted.

These are omitted.

– 8 –

• Waveforms

– MAIN Board –

1IC300 #¡ (OSC)

– DISPLAY Board –

1IC201 #¢ (X1)

3.4 Vp-p

8 MHz

4.3 Vp-p

4.19 MHz

– 9 –

V+

VSB/SESIN

VSA

RESET

GND

OUTC

VSC

VREF

+–

–+

–

R S

• IC Block Diagrams

– STANDBY Board –

IC950 NJM2103D

IC500 LC7822

– MAIN Board –

IC100 M62447SP

OUTPUT

PORT

MICRO

COMPUTER

INTERFACE

DVDD

CLK

DATA

LATCH

DGND

AGND

OUT4

OUT3

OUT2

OUT1

AVDD

SW IN

GND S

SR IN

SL IN

GND C

C IN

GND R1

GND R2

GND L1

GND L2

R IN

GND LR

L IN

SW OUT

SR OUT

SL OUT

C OUT

R OUT

L OUT

AVSS1

AVSS2

22 – 28

21 – 19

CONTROL

LATCH

SHIFT RESISTOR

LEVEL SHIFT

VEE

OUT

VSS

RESET

VDD

OUT

ININ

OUT

– 10 –

IC300 LV1035M

STRIM

OSC

VOL

VCA VCA A

VCA VCA

VCA VCA VCA VCA

DEV

NOISE

GEN

NOISE

FILTER

BPF

CONTROL

BPF

V REF

STRIM

MODE

RECT

CUT

B NR

OUT

FILTER

DATA

DECODER

VOL/

MUTE

BPF

RECT

LOGIC

FF RECT

C MODE

LOGIC LOGIC

AAS

VDD

PCM

CONTROL

SRAM

FILTER

R BPF2

R BPF1

S DC OUT

C DC OUT

R DC OUT

L DC OUT

V REF

VCC

C OUT

S OUT

R OUT

L OUT

GND

L IN

R IN

S IN

DELAY OUT

L BPF2

L BPF1

RT IN

LT IN

DC CUT

C MODE

GND

NS BPF1

OSC

NS BPF2

ENABLE

DATA

CLK

DATA

CLK

VSS

OSC

VDD

A/D

D/A

DC CUT

VCC

DET

IREF

GND

S-OUT

R-OUT

L-OUT

L RECT

DC CUT4

R RECT

DC CUT3

L BPF3

VLR TH

VLR 1

VLR 2

VCS 2

VCS 1

VCS TH

L+R RECT

DC CUT2

L-R RECT

DC CUT1

R BPF3

64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49

1817

19 20 21 22 23 24 25 26 27 28 29 30 31 32

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