Sony TA-FB930R Manuale utente

MICROFILM

AEP Model

SPECIFICATIONS

SERVICE MANUAL

INTEGRATED STEREO AMPLIFIER

TA-FB930R

Photo: BLACK model

SAFETY-RELATED COMPONENT WARNING !!

COMPONENTS IDENTIFIED BY MARK !OR DOTTED LINE

WITH MARK !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.

TABLE OF CONTENTS

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

2. ELECTRICAL ADJUSTMENT ..................................... 4

3. DIAGRAMS

3-1. Circuit Boards Location ........................................................ 5

3-2. Schematic Diagram – Input Section – .................................. 6

3-3. Printed Wiring Board – Input Section – ................................ 7

3-4. Schematic Diagram – Main Section – .................................. 8

3-5. Printed Wiring Board – Main Section – ................................ 9

3-6. Schematic Diagram – Panel Section – ................................ 10

3-7. Printed Wiring Board – Panel Section – ............................. 11

3-8. Schematic Diagram – Power Section –............................... 12

3-9. Printed Wiring Board – Power Section – ............................ 13

3-10. IC Block Diagrams............................................................ 14

3-11. IC Pin Function ................................................................. 14

4. EXPLODEDVIEW

4-1. Case Section........................................................................ 15

4-2. Front Panel Section ............................................................. 16

4-3. Chassis Section ................................................................... 17

5. ELECTRICAL PARTS LIST ........................................ 18

Front Panel Descriptions

SECTION 1

GENERAL

1PROTECTION indicator

2U(Power) button

3Remote sensor

4EON LINK indicator

5TAPE 1/DAT indicator

6TAPE 2/MD indicator

7AUX indicator

8CD indicator

9TUNER indicator

10 PHONO indicator

11 INPUT SELECTOR knob

12 VOLUME knob

13 SOURCE DIRECT button and indicator

14 TAPE MONITOR knob

15 SUBSONIC button

16 LOUDNESS button

17 BALANCE knob

18 TREBLE knob

19 BASS knob

20 SPEAKERS knob

21 PHONE jack

22 EON LINK button

23465110

1819

This section is extracted from

instruction manual.

SECTION 2

ELECTRICAL ADJUSTMENT

Bias Adjustment

NOTE:

1. Perform the adjustment after the unit has warmed up sufficiently.

2. Perform the bias adjustment if the power transistor has been

replaced.

Procedure:

1. Rotate fully the bias adjusting semi-fixed resistors (RV500,

RV600) to the MIN position (counterclockwise).

2. Connect a digital voltmeter to the CN500 and CN600.

1 pin 3 pin

–

CN500 (L-CH)

CN600(R-CH)

3. Set the slide regulator to 0V, and press the Ubutton (ON) on

the set.

4. Raise graduallythe slideregulatorvoltage upto the ratedvoltage.

5. At this time, confirm that the SP relay is turned on (it will click).

6. Adjust the RV500 and RV600 so that a reading of digital

voltmeter is 10 ± 1 mV.

7. Return the slidack to 0V, and press the Ubutton (OFF) on the

set.

Adjustment Location :

[MAIN BOARD] – COMPONENT SIDE –

CN600 (R-CH)

CN500 (L-CH)

RV600

Bias (R-CH)

RV500

Bias (L-CH)

DIGITAL

VOLTMETER DIGITAL

VOLTMETER

SECTION 3

DIAGRAMS

3-1. CIRCUIT BOARDS LOCATION THIS NOTE IS COMMON FOR PRINTED WIRING

BOARDS AND SCHEMATIC DIAGRAMS.

(In addition to this,the necessary note is printed

in each block.)

For schematic diagrams.

Note:

• 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.

•5: fusible resistor.

•C: panel designation.

For printed wiring boards.

Note:

•X: parts extracted from the component side.

•Y: parts extracted from the conductor side.

•b: Pattern from the side which enables seeing.

•U: B+ Line.

•V: B– Line.

•H: adjustment for repair.

• Voltages and waveforms are dc with respect to ground

under no-signal (detuned) conditions.

no mark : POWER ON

• Voltages aretakenwithaVOM(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:TUNER

• Abbreviation

G : German model.

EE : East European model.

AUS : Australian model.

SP : Singapore model.

MY : Malaysia model.

WAVEFORM

IC902 1XOUT

Note: The components identified by mark !or dotted line

with mark !are critical for safety.

Replace only with part number specified.

• Indication of transistor

CThese are omitted

4MHz

3.8Vp-p

PANEL board

TONE board INPUT board

MAIN board

SP-TM board

PHONO board

PS board OUTLET board

VOL board

SIRCS board

SIRCS SUB board

HP board

S-D LED board

TA-FB930R

3-2. SCHEMATIC DIAGRAM – INPUT SECTION –

(Page 8)

(Page 10)

TA-FB930R

3-3. PRINTEDWIRING BOARD – INPUT SECTION –

• See page 5 for Circuit Boards Location.

Ref. No. Location

• Semiconductor

Location

D100 A-8

D101 A-10

D102 B-10

D103 B-10

D104 C-10

D105 D-10

D106 D-10

D107 B-8

D108 B-6

D140 B-4

D240 B-4

Q100 B-7

Q101 B-7

Q102 B-7

Q103 B-7

Q104 B-6

Q105 B-6

Q140 C-4

Q240 B-4

(Page 11)

(Page 9)

TA-FB930R

3-4. SCHEMATIC DIAGRAM – MAIN SECTION –

• See page 14 for IC Block Diagrams.

(Page 10)

(Page

12)

(Page

10)

(Page 6)

(Page 12)

TA-FB930R

3-5. PRINTEDWIRING BOARD – MAIN SECTION –

• See page 5 for Circuit Boards Location.

Ref. No. Location

• Semiconductor

Location

D500 C-10

D501 C-10

D502 C-10

D503 D-11

D504 E-10

D505 E-10

D506 D-9

D507 D-4

D508 C-5

D600 F-10

D601 F-10

D602 F-10

D603 E-11

D604 E-10

D605 E-10

D606 F-9

D607 E-4

D608 C-4

D703 F-4

Q500 C-11

Q501 C-10

Q502 C-10

Q503 D-11

Q504 D-10

Q505 D-10

Q506 D-11

Q507 E-10

Q508 D-9

Q509 D-8

Q510 D-8

Q511 C-5

Q512 C-8

Q513 C-6

Q514 D-5

Q600 F-11

Q601 F-10

Q602 F-10

Q603 F-11

Q604 F-10

Q605 F-10

Q606 E-11

Q607 E-10

Q608 F-9

Q609 F-8

Q610 F-8

Q611 G-8

Q612 G-5

Q613 F-6

Q614 E-4

Q702 G-4

(Page 13)

(Page

11)

(Page

11)

(Page

11)

(Page 9)

Ref. No. Location

• Semiconductor

Location

D511 E-2

D512 E-2

D513 F-3

D700 A-1

D701 A-1

D702 A-1

IC700 B-2

Q700 A-3

Q701 B-1

10 10

TA-FB930R

3-6. SCHEMATIC DIAGRAM – PANEL SECTION –

• See page 5 forWaveform.

• See page 14 for IC Block Diagrams.

• See page 14 for IC Pin Function.

(Page 8)

(Page 6)

(Page 8)

(Page 10)

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