Sony TA-FB730R Bedienungsanleitung
– 1 –
MICROFILM
AEP Model
UK Model
E Model
Australian Model
SPECIFICATIONS
SERVICE MANUAL
INTEGRATED STEREO AMPLIFIER
TA-FB730R
– 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 – .................................. 7
3-3. Printed Wiring Board – Input Section – ................................ 9
3-4. Schematic Diagram – Main Section – ................................ 11
3-5. Printed Wiring Board – Main Section – .............................. 13
3-6. Schematic Diagram – Panel Section – ................................ 15
3-7. Printed Wiring Board – Panel Section – ............................. 17
3-8. Schematic Diagram – Power Section –...............................19
3-9. Printed Wiring Board – Power Section – ............................ 21
3-10. IC Block Diagrams............................................................ 23
3-11. IC Pin Function ................................................................. 24
4. EXPLODEDVIEWS
4-1. Case and Back Panel Section .............................................. 25
4-2. Front Panel Section ............................................................. 26
4-3. Chassis Section ................................................................... 27
5. ELECTRICAL PARTS LIST ........................................ 28
– 3 –
Front Panel Descriptions
SECTION 1
GENERAL
Location of Parts and Controls
1PROTECTION indicator
2U(Power) button
3Remote sensor
4TAPE 1/DAT indicator
5TAPE 2/MD indicator
6AUX indicator
7CD indicator
8TUNER indicator
9PHONO indicator
10 INPUT SELECTOR knob
11 VOLUME knob
12 SUBSONIC button
13 SOURCE indicator
14 SOURCE DIRECT button and indicator
15 LOUDNESS button
16 TAPE MONITOR knob
17 BALANCE knob
18 TREBLE knob
19 BASS knob
20 SPEAKERS knob
21 PHONE jack
22 EON LINK button
23 EON LINK indicator
This section is extracted from
instruction manual.
22
23
13 12
1415
16
1718
19
20
21
3
2
1978465
10
11
– 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.
3. Set the slide regulator to 0V, and press the Ubutton (ON) on
the set.
4. Raise graduallytheslide regulatorvoltage up totherated voltage.
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 –
1 pin 3 pin
–
–
+
+
CN500 (L-CH)
CN600(R-CH)
+
CN600 (R-CH)
1
3
CN500 (L-CH)
1
3
RV600
Bias (R-CH)
RV500
Bias (L-CH)
DIGITAL
VOLTMETER DIGITAL
VOLTMETER
+
– 5 – – 6 –
SECTION 3
DIAGRAMS
3-1. CIRCUIT BOARDS LOCATION THIS NOTE IS COMMON FOR PRINTEDWIRING
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 are takenwith aVOM (Input impedance 10 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:TUNER
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
INPUT board
MAIN board
SP-TM board
PHONO boar
d
PS board OUTLET board
(EXCEPT UK, SP)
VOL board
SIRCS board
SIRCS SUB board
HP board
SP-SW board
• Abbreviation
G : German model
SP : Singapore model
MY : Malaysia model
AUS : Australian model
– 7 – – 8 –
TA-FB730R
3-2. SCHEMATIC DIAGRAM – INPUT SECTION –
• See page 23 for IC Block Diagrams.
(Page 12)
(Page 15)
(Page 15)
– 9 – – 10 –
TA-FB730R
3-3. PRINTEDWIRING BOARD – INPUT SECTION –
• See page 5 for Circuit Boards Location.
Ref. No. Location
• Semiconductor
Location
D101 B-7
D102 B-8
D133 C-9
D140 B-4
D240 B-4
IC101 B-9
Q101 C-7
Q102 C-7
Q103 C-8
Q140 C-4
Q240 B-4
(Page 18) (Page 17)
(Page 13)
EXCEPT UK, SP
EXCEPT UK, SP
EXCEPT UK, SP
EXCEPT UK, SP
EXCEPT UK, SP
EXCEPT UK, SP
EXCEPT
UK, SP
EXCEPT UK, SP
EXCEPT UK, SP
EXCEPT UK, SP
– 11 – – 12 –
TA-FB730R
3-4. SCHEMATIC DIAGRAM – MAIN SECTION –
• See page 23 for IC Block Diagrams.
(Page 16)
(Page 16)
(Page
20)
(Page
15) (Page 20)
(Page 8)
– 13 – – 14 –
TA-FB730R
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 E-11
D504 E-10
D505 E-10
D506 D-9
D511 E-2
D512 E-2
D513 F-3
D600 G-10
D601 G-10
D602 G-10
D603 E-11
D604 E-10
D605 E-10
D606 F-9
D700 A-1
D701 A-1
D702 A-1
D703 G-4
D720 E-7
D721 E-7
IC700 B-2
Q500 C-11
Q501 C-11
Q502 C-10
Q503 D-11
Q504 D-10
Q505 D-10
Q506 E-11
Q507 E-10
Q508 D-9
Q509 D-8
Q510 D-8
Q511 C-5
Q512 C-8
Q513 D-6
Q514 D-5
Q600 G-11
Q601 G-11
Q602 G-10
Q603 F-11
Q604 F-10
Q605 F-10
Q606 E-11
Q607 E-10
Q608 F-9
Q609 F-8
Q610 F-10
Q611 G-8
Q612 G-5
Q613 F-6
Q614 F-4
Q700 B-3
Q701 B-1
Q702 G-4
(Page
22)
(Page
10)
(Page 22)
(Page
18)
(Page
18)
(Page
17)
– 15 – – 16 –
TA-FB730R
3-6. SCHEMATIC DIAGRAM – PANEL SECTION –
• See page 5 forWaveforms.
• See page 23 for IC Block Diagram.
• See page 24 for IC Pin Function.
(Page 8)
(Page 12)
(Page 7)
(Page
11)
(Page
11)
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