DOWNLOAD Sony TA-FB920R Service Manual ↓ Size: 2.85 MB | Pages: 26 in PDF or view online for FREE

Model
TA-FB920R
Pages
26
Size
2.85 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
ta-fb920r.pdf
Date

Sony TA-FB920R Service Manual ▷ View online

– 1 –
MICROFILM
AEP Model
UK Model
E Model
Australian Model
SPECIFICATIONS
SERVICE MANUAL
INTEGRATED STEREO AMPLIFIER
TA-FB920R
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 ADJUSTMENTS
................................. 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. EXPLODED VIEW
4-1. Case and Back Panel Section .............................................. 25
4-2. Front Panel Section ............................................................. 26
4-3. Chassis Section ................................................................... 27
5. ELECTRICAL PARTS LIST
........................................ 28
PARTS No.
MODEL
MODEL IDENTIFICATION
— BACK PANEL —
4-999-451-0π
4-999-451-4π
AEP, G, EE, MY, SP, AUS
UK
Parts No.
NOTE:
• Abbreviation
G
: German model
EE
: East European model
SP
: Singapore model
MY : Malaysia model
AUS : Australian model
– 3 –
Front Panel Descriptions
SECTION 1
GENERAL
1
PROTECTION indicator
2
U (Power) utton
3
Remote sensor
4
EON LINK indicator
5
TAPE 1/DAT indicator
6
TAPE 2/MD indicator
7
AUX indicator
8
CD indicator
9
TUNER 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
7
8
2
3
4
6
5
1
10
11
13
12
14
15
16
17
18
19
20
21
22
This section is extracted from
instruction manual.
– 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  U  button (ON) on
the set.
4. Raise gradually the slide regulator voltage up to the rated 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 0 V, and press the  U  button (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
+
Page of 26
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Sony TA-FB920R Service Manual ▷ Download

  • DOWNLOAD Sony TA-FB920R Service Manual ↓ Size: 2.85 MB | Pages: 26 in PDF or view online for FREE
  • Here you can View online or download the Service Manual for the Sony TA-FB920R in PDF for free, which will help you to disassemble, recover, fix and repair Sony TA-FB920R Audio. Information contained in Sony TA-FB920R Service Manual (repair manual) includes:
  • Disassembly, troubleshooting, maintenance, adjustment, installation and setup instructions.
  • Schematics, Circuit, Wiring and Block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Exploded View and Parts List.