Sony XDRS-1 Service manual

XDR-S1

SERVICE MANUAL

Ver 1.0 2004. 09

SPECIFICATIONS

Time display UK 12-hour system Other countries/regions 24-hour system

Frequency range Band Frequency Channel step

DAB (L-Band) 1452.960

– 1490.624 MHz

DAB (Band-III) 174.928

– 239.200 MHz FM 87.5 – 108 MHz 0.05 MHz MW 531 – 1,602 kHz 9 kHz LW 153 – 279 kHz 3 kHz

AEP Model

UK Model

9-879-193-01

Speaker: 8 cm (3 Power output: 2.3 W+2.3 W (at 10% harmonic distortion) Output: Headphone jack (stereo mini jack) Power requirements: 230 V AC, 50 Hz Power consumption: 13 W Dimensions: Approx. 320 × 142 × 154 mm (w/h/d)

Mass: Approx. 2.5 kg (5 lb 8 oz) Supplied accessories: AC power cord (1),

Design and specifications are subject to change without notice.

1/4 inches) dia., 3.2 Ω

(Approx. 12 3/4 × 5 5/8 × 6 1/8 inches) incl.

projecting parts and controls

Remote control (RMT-CS1AD) (1)

Sony Corporation

Personal Audio Company Published by Sony Engineering Corporation

DAB/FM/MW/LW DIGITAL RADIO

XDR-S1

Flexible Circuit Board Repairing

•Keep the temperature of the 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.

Notes on Chip Component Replacement

•Never reuse a disconnected chip component.

• Notice that the minus side of a tantalum capacitor may be damaged by heat.

UNLEADED SOLDER

•

Boards requiring use of unleaded solder are printed with the leadfree mark (LF) indicating the solder contains no lead. (Caution: Some printed circuit boards may not come printed with the lead free mark due to their particular size.)

: LEAD FREE MARK

Unleaded solder has the following characteristics.

• Unleaded solder melts at a temperature about 40°C higher than ordinary solder. Ordinary soldering irons can be used but the iron tip has to be applied to the solder joint for a slightly longer time. Soldering irons using a temperature regulator should be set to about 350°C. Caution: The printed pattern (copper foil) may peel away if the heated tip is applied for too long, so be careful!

• Strong viscosity Unleaded solder is more viscous (sticky, less prone to flow) than ordinary solder so use caution not to let solder bridges occur such as on IC pins, etc.

• Usable with ordinary solder It is best to use only unleaded solder but unleaded solder may also be added to ordinary solder.

1. GENERAL

2. DISASSEMBLY

2-1. Cabinet (Rear) Assy ............................................................ 4

2-2. Wires ...................................................................................5

2-3. Cabinet Upper Assy ............................................................ 5

2-4. Key Board ........................................................................... 6

2-5. Tuner Board......................................................................... 6

2-6. Micon Board ....................................................................... 7

2-7. Power Board, Jack Board ....................................................7

3. ELECTRICAL ADJUSTMENTS................................... 8

4. DIAGRAMS

4-1. Printed Wiring Board –Tuner Section– .............................10

4-2. Printed Wiring Boards –Micon Section– .......................... 11

4-3. Schematic Diagram –Tuner, Micon Section– ................... 12

4-4. Printed Wiring Boards –Audio, Power Supply Section– .. 13

4-5. Schematic Diagram –Audio, Power Supply Section–....... 14

5. EXPLODED VIEWS

5-1. Cabinet (Rear) Section ...................................................... 17

5-2. Cabinet Front Section........................................................ 18

5-3. Chassis Section ................................................................. 19

6. ELECTRICAL PARTS LIST ........................................ 20

SAFETY-RELATED COMPONENT WARNING!!

COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE WITH MARK 0 ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESE COMPONENTS WITH SONY P ARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY.

• LOCATION OF CONTROLS

SECTION 1

GENERAL

XDR-S1

This section is extracted from instruction manual.

XDR-S1

)

SECTION 2

DISASSEMBLY

• The equipment can be removed using the following procedure.

SET

2-1. CABINET (REAR) ASSY

(Page 4)

2-2. WIRES

(Page 5)

2-3. CABINET UPPER ASSY

(Page 5)

2-4. KEY BOARD

(Page 6)

2-5. TUNER BOARD

(Page 6)

2-6. MICON BOARD

(Page 7)

2-7. POWER BOARD,

JACK BOARD (Page 7)

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

2-1. CABINET (REAR) ASSY

cabinet (rear) assy

four claws

four

screws

BV tapping (B3)

)

two

screws

BV tapping (B3)

)

two

screws

BV tapping (B3)

four

screws

net assy

BV tapping (B3)

)

2-2. WIRES

Put flat cable and wires between the cabinets and push them in the grooves located at A to D in the figure to prevent disconnection before assembling the set.

XDR-S1

front side

2-3. CABINET UPPER ASSY

CN304 (9P)

CN302 (4P)

AB CD

cabinet upper assy

two

screws

BV tapping (B3)

two

screws

BV tapping (B3)

)

telescopic antenn

)

cabinet front assy

CN301 (6P)

screw (M3x6 lock ace)

terminal (antenna)

XDR-S1

2-4. KEY BOARD

KEY board

five

screws

P tapping (B2.6)

)

CN702 (4P)

cabinet upper assy (SVX)

three

screws

P tapping (B2.6)

)

2-5. TUNER BOARD

two

screws

P tapping (B2.6)

CN704 (6P)

)

two

screws

CN502 (22P)

P tapping (B2.6)

)

CN501

CN504 (3P)

CN503 (9P)

TUNER board

two

screws

P tapping (B2.6)

two

)

screws

P tapping (B2.6)

)

2-6. MICON BOARD

three

screws

P tapping (B2.6)

screw (+

P tapping (B2.6)

)

helical antenna

)

XDR-S1

claw

green

red

Remove the five solderings.

black

yellow

natural

2-7. POWER BOARD, JACK BOARD

two

PWH tapping (B2.6)

screws

JACK board

three

screws

P tapping (B2.6)

)

MICON board

)

two

screws

BV tapping (B3)

)

two

screws

BV tapping (B3)

)

bracket (AC inlet)

chassis

POWER board

two

screws

BV tapping (B3)

)

XDR-S1

SECTION 3

ELECTRICAL ADJUSTMENTS

TRACKING ADJUSTMENT

This set has the calibration function for tracking adjustment. It is calibrated on each of LW and MW bands using frequencies at 7 points or 9 points.

Setting:

BAND: MW or LW

AM RF signal generator

Put the lead-wire antenna close to the set.

30% amplitude modulation by 400 Hz signal

• LW

1. With the power of f, press the 4 ke ys: [TIMER STANDBY], [SC], 0 and [DISPLAY] simultaneousl y for 3 seconds. The LCD display shows “Calibration Mode” on the top and “LW MW EXIT” on the bottom.

Calibration Mode

LW MW EXIT

2. Select “LW” using the TUNE/SET UP [+]/[--] key, and press the [MENU/ENTER] key.

3. The LCD display shows “Calibration” on the top and the frequency at 1st point “153 kHz” on the bottom.

• MW

1. Select “MW” using the TUNE/SET UP [+]/[--] key, and press the [MENU/ENTER] key .

2. The LCD display shows “Calibration” on the top and the frequency at 1st point “531 kHz” on the bottom.

3. Set the output frequency of the signal generator to 531 kHz.

4. When adjustment at 1st point is completed (it takes for about 3 seconds), press the [MENU/ENTER] key.

5. Repeat steps 2 to 4 until adjustment at 2nd point to 9th point is completed.

Frequency at each point: 1st point: 531 kHz 2nd point: 603 kHz 3rd point: 702 kHz 4th point: 801 kHz 5th point: 900 kHz 6th point: 999 kHz 7th point: 1305 kHz 8th point: 1503 kHz 9th point: 1602 kHz

6. Once adjustment at all the points is completed, the LCD display shows “Complete Cancel” on the top. Select either of the following options using the TUNE/SET UP [+]/[--] key and press the [MENU/ENTER] key .

Complete: Writes the data and returns to the menu. Cancel: Aborts the data and returns to the menu.

• Termination of Adjustment

1. Select “EXIT” using the TUNE/SET UP [+]/[--] key, and press the [MENU/ENTER] key .

2. The LCD display shows “Please Reset”. Press the [RESET] ke y to terminate the Calibration Mode.

Calibration

153kHz

4. Set the output frequency of the signal generator to 153 kHz.

5. When adjustment at 1st point is completed (it takes for about 3 seconds), press the [MENU/ENTER] key.

6. Repeat steps 3 to 5 until adjustment at 2nd point to 7th point is completed.

Frequency at each point: 1st point: 153 kHz 2nd point: 162 kHz 3rd point: 174 kHz 4th point: 186 kHz 5th point: 195 kHz 6th point: 243 kHz 7th point: 279 kHz

7. Once adjustment at all the points is completed, the LCD display shows “Complete Cancel” on the top. Select either of the following options using the TUNE/SET UP [+]/[--] key and press the [MENU/ENTER] key.

Complete: Writes the data and returns to the menu. Cancel: Aborts the data and returns to the menu.

SECTION 4

VIN1

VIN2

SEL2

SEL1

FILTER

GND

CAP

TNF1

TNF2

BNF2

BOUT2

BNF1

BOUT1

OUT1

OUT2

VCC

BASS1

=80Hz

BASS2

f0=80Hz

21 20 19 18 17 16 15 14 13

TREBLE2

=8kHz

TREBLE1

=8kHz

SURROUND

1 2 3 4

LOGIC

VCC/2

VCC/2 VCC/2

VCC/2

5 6 7 8 9 10 11 12

DIAGRAMS

• CIRCUIT BOARDS LOCATION • NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS

THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS. (In addition to this, the necessary note is

MICON board

JACK board

KEY board

AUDIO board

TUNER boar

POWER board

printed in each block.) for schematic diagram:

• All capacitors are in µF unless otherwise noted. (p: pF) 50 WV or less are not indicated except for electrolytics and tantalums.

• All resistors are in Ω and 1/ specified.

W or less unless otherwise

• C : panel designation.

Note: The components identified by mark 0 or dotted line

with mark 0 are critical for safety. Replace only with part number specified.

• A : B+ Line.

•Voltage and waveforms are dc with respect to ground under no-signal conditions. no mark : FM (): MW <>: LW

•Voltages are taken with a VOM (Input impedance 10 MΩ). Voltage variations may be noted due to normal production tolerances.

•Waveforms are taken with a oscilloscope. Voltage variations may be noted due to normal production tolerances.

• Circled numbers refer to waveforms.

• Signal path.

F : FM f : MW E : DAB j : LW

for printed wiring boards:

• X : parts extracted from the component side.

• Y : parts extracted from the conductor side.

• : Pattern from the side which enables seeing.

(The other layer’s patterns are not indicated.)

Caution: Pattern face side: Parts on the pattern face side seen from (Side B) the pattern face are indicated. Parts face side: Parts on the parts face side seen from (Side A) the parts face are indicated.

✩ When IC701 is damaged, replace the MICON board.

XDR-S1

• WAVEFORMS — MICON BOARD —

IC701 uk (XOA)

1.8Vp-p

32.768kHz

500 mV/DIV 0.1 msec/DIV

IC701

(XO)

1.3Vp-p

✩ When IC701 is damaged, replace the MICON board.

• IC BLOCK DIAGRAM

IC303 BD3870FS-E2 (AUDIO Board)

XDR-S1

4.19MHz

500 m V/DIV 0.5

sec/DIV

+ 19 hidden pages

Sony XDRS-1 Service manual

TABLE OF CONTENTS

GENERAL

DISASSEMBLY

cabinet (rear) assy

cabinet upper assy

KEY board

TUNER board

MICON board

ELECTRICAL ADJUSTMENTS

DIAGRAMS