Sony TA-FB930R Manuel utilisateur
1
MICROFILM
AEP Model
SPECIFICATIONS
SERVICE MANUAL
INTEGRATED STEREO AMPLIFIER
TA-FB930R
Photo: BLACK model
2
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
3
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
9
78
23465110
11
13
12
14
15
16
17
1819
20
21
This section is extracted from
instruction manual.
22
4
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)
1
3
CN500 (L-CH)
1
3
RV600
Bias (R-CH)
RV500
Bias (L-CH)
DIGITAL
VOLTMETER DIGITAL
VOLTMETER
+
55
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
1
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
EB
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
66
TA-FB930R
3-2. SCHEMATIC DIAGRAM – INPUT SECTION –
(Page 8)
(Page 10)
(Page 10)
77
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 11)
(Page 9)
88
TA-FB930R
3-4. SCHEMATIC DIAGRAM – MAIN SECTION –
• See page 14 for IC Block Diagrams.
(Page 10)
(Page 10)
(Page
12)
(Page
10)
(Page 6)
(Page 12)
99
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 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 6)
(Page 8)
(Page 10)
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