Sony Ta-ve170 Manual de usuario

TA-VE170

AEP Model

UK Model

E Model

Australian Model

Chinese Model

SERVICE MANUAL

HOME THEATER SYSTEM

Manufactured underlicensefromDolbyLaboratories

Licensing Corporation.

“DOLBY”,“AC-3”,“ProLogic”andthedouble-Dsymbol

;and “Pro Logic” are trademarks of Dolby

Laboratories Licensing Corporation.

• This set is the Amplifier section in

HT-K170.

SPECIFICATIONS

(DIN1 kHz,8 ohms)

25 W + 25 W

(DIN1 kHz,8 ohms)

Front: 25 W /ch

Center: 25 W

Rear: 25 W /ch

TV, VIDEO, DVD2CH,

5.1 CH/DVD:

10 Hz- 50 kHz+0.5/–2 dB

WOOFER:

Voltage: 1 V

Impedance: 1 kilohms

Fullmute

220 - 230 V AC, 50/60Hz

115 W

430 x 274 x 64.5 mm

4.6 kg

Poweroutput

Rated Power

OutputatStereo

mode

Reference

PowerOutput

Frequency

response

Inputs

Outputs

Muting

Power

requirements

Power

consumption

Dimensions

Mass (Approx.)

TV,

VIDEO,

DVD 2CH,

5.1 CH/

DVD

Sensitivity

250 mV

Impedance

kilohms

S/N

(weighting

network,

inputlevel)

*78IHF

dB*

(A, 250 mV)

General

Design and specifications are subject to

change withoutnotice.

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SAFETY-RELATED COMPONENT WARNING!!

COMPONENTS IDENTIFIED BY MARK 0OR DOTTED LINEWITH

MARK 0ON THE SCHEMATIC DIAGRAMS AND INTHE 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.

Flexible Circuit Board Repairing

• Keep the temperature of 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.

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·················································· 6

4-2. Printed Wiring Board – MAIN Section – ······················ 9

4-3. Schematic Diagram – MAIN Section (1/2) – ·············· 10

4-4. Schematic Diagram – MAIN Section (2/2) – ·············· 11

4-5. Printed Wiring Boards – PANEL Section –················· 12

4-6. Schematic Diagram – PANEL Section – ····················· 13

4-7. Printed Wiring Boards – POWER Section – ··············· 14

4-8. Schematic Diagram – POWER Section –···················· 15

4-9. IC Pin Function Description ········································· 16

5. EXPLODED VIEWS····················································· 17

6. ELECTRICAL PARTS LIST····································· 19

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SECTION 1

GENERAL

This section is extracted

from instruction manual.

15.1 CH/DVD

2DVD2CH

3TV

7REAR SPEAKERS

8CENTER SPEAKER

9Mains lead

4VIDEO

5WOOFER

FRONT SPEAKER

15 7

8642

3 4 5 6 7 8

1?/1 button

2CENTER MODE button

3VIDEO button

4TV button

5DVD 2CH button

65-1 CH/DVD button

7SOUND FIELD button

8MASTER VOLUME knob

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CASE, FRONT PANEL SECTION

MAIN BOARD

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

case

screw (BVTP3 x8)

four screws

(BVTP3 x8)

claw

flat wire

(CNS301)

two tapping screws

two tapping screw

flat wire

(CNS302)

claw

front panel section

8

Remove the

MAIN board

to direction of

the arrow

6

connector

(CNS800)

5

connector

(CNP802)

7

six screws

(BVTP3 x8)

1

two screws

(BVTP3 x8)

3

six screws

(BVTP3 x8

)

2

DC fan

4

connector

(CNS801)

SECTION 2

DISASSEMBLY

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SECTION 3

TEST MODE

Thisequipmentisprovidedwithatestmode builtinthemicrocomputer.

The contents are described in the following.

[Initial Mode]

Press ?/1button while pressing both [TV] and

[5.1CH/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 NORMAL.

• Muting clear.

• Volume level set to min.

• FAN is on.

[Factory Mode]

Press

?/1

button while pressing three buttons of

[VIDEO]

[DVD2CH]

, and

[5.1CH/DVD]

simultaneously.

2. Factory setting same as initial except center mode set to normal

using jog can set to volume max or min directly.

[FL Check Mode]

1. Press

?/1

button while both

[

CENTERMODE

]

and

[TV]

buttons

simultaneously.

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

displayedandthestatusof the unitissetbackin normal condition.

[Gain Up Mode]

1. Press

?/1

button while pressing

[

SOUNDFIELD

]

button.

2. “NOMAL” 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.

“GAIN LOW” is displayed on the fluorescent indicator tube and

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

[Version Mode]

Press

?/1

buttonwhilepressingthree buttonsof

[CENTERMODE]

[

DVD2CH

]

and

[

SOUNDFIELD

]

buttons simultaneously.

2. Version of its destination is displayed onthefluorescentindicator

tube.

[FAN ON/OFF]

• Press ?/1button while pressing

[CENTERMODE]

button.

• “FAN ON” t fan always turn on.

• “FAN AUTO”t when micro computer detected enough input

signal fan turn on automatically. Normally fan is off.

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• Circuit Boards Location

SECTION 4

DIAGRAMS

PW.SW borad

DISPLAY board

JOG board

MAIN boar

STANDBY board

PRIMARY board

SECONDARY board

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 PrintedWiring Board:

•X: parts extracted from the component 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.

• Voltages are takenwithaVOM(Inputimpedance10MΩ).

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

BThese are omitted.

These are omitted.

• Waveforms

– MAIN Board –

1IC300 #¡ (OSC)

– DISPLAY Board –

1IC201 #¢ (X1)

3.4 Vp-p

8 MHz

4.3 Vp-p

4.19 MHz

Note:

The components identified

by mark0ordotted linewith

mark0arecriticalforsafety.

Replaceonlywithpart num-

ber specified.

Note:

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• IC Block Diagrams

– STANDBY Board –

IC950 NJM2103D

IC500 LC78212

– MAIN Board –

IC100 M62447SP

V+

VSB/SESIN

VSA

RESET

GND

OUTC

VSC

VREF

+–

–+

–

R S

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

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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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TA-VE170

D100 J-13

D310 C-6

D520 C-12

D521 J-13

D550 I-8

D620 C-11

D621 J-13

D720 C-8

D721 J-7

D731 J-6

D801 G-12

D810 H-12

D811 H-12

D812 H-11

D813 H-11

D814 D-4

D820 I-12

D821 I-12

D822 I-12

D823 I-12

D850 C-13

D853 C-13

IC100 I-2

IC300 E-3

IC302 E-6

IC401 C-4

IC500 G-3

IC501 I-10

IC502 F-6

IC503 F-5

IC601 F-10

IC651 D-10

IC701 E-9

IC751 H-9

IC801 I-6

IC802 I-7

IC803 E-5

Q150 I-5

Q151 I-5

Q152 I-4

Q153 I-4

Q154 I-4

Q155 I-4

Q367 C-6

Q520 D-12

Q550 I-8

Q551 I-9

Q620 D-12

Q720 C-8

Q730 I-7

Q731 I-6

Q732 J-7

Q851 C-13

Q853 B-13

Q854 C-12

Q855 B-13

4-2. PRINTED WIRING BOARD – MAIN Section –

• Semiconductor

Location

Ref. No. Location

• See page 6 for Circuit Boards Location. There are a few cases that the part printed on

this diagram isn’t mounted in this model.

(Page 12)(Page 12) (Page 12)

(Page 14)

(FAN1)

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TA-VE170

1010

4-3. SCHEMATIC DIAGRAM – MAIN Section (1/2) – • See page 6 for Waveform. • See page 7 for IC Block Diagrams.

R106 100k

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