Sony HCD-D590, HCD-XB4 Service Manual

HCD-D590/XB4

SERVICE MANUAL

HCD-D590, HCD-XB4 is the tuner, deck,
CD and amplifier section in LBT-D590,
LBT-XB4.

Photo: HCD-D590

CD
Section

Tape deck
Section

US Model

Canadian Model

HCD-D590

E Model

Australian Model

PX Model

HCD-XB4

Model Name Using Similar Mechanism NEW
CD Mechanism Type
Base Unit Name BU-5BD29AL
Optical Pick-up Name
Model Name Using
T ape Transport Mechanism T ype TCM-220WR2

Similar Mechanism HCD-H881

CDM37L-5BD29AL

KSS-213D/Q-NP

SPECIFICATIONS

For the U.S. model
AUDIO POWER SPECIFICATIONS

POWER OUTPUT AND TOTAL HARMONIC DISTORTION:
With 8 ohm loads, both channels driven, from 70-20,000 Hz; rated 100 watts
per channel minimum RMS power, with no more than 0.9 % total harmonic
distortion from 250 milliwatts to rated output.

Amplifier section

Continuous RMS power output
(HCD-D590)
Canadian model: 100+100 watts

(8 ohms at 1 kHz, 5%)

(HCD-XB4) 80+80 watts

(5 ohms at 1kHz, 10% THD)
Peak music power output
(HCD-XB4) 1200 watts

Inputs
PHONO IN (phono jack): sensitivity 3 mV, impedance 47 kilohms
VIDEO (AUDIO) IN (phono jack):sensitivity 250 mV, impedance 47 kilohms
MIX MIC (phono jack): sensitivity 1 mV, impedance 10 kilohms
Outputs
PHONES (stereo phone jack): accepts headphones of 8 odms or more
SPEAKER:
(HCD-D590) accepts impeadance of 8 to 16 ohms.
(HCD-XB4) accepts impeadance of 5 to 16 ohms.
SURROUND SPEAKER:
(HCD-D590) accepts impeadance of 16 ohms.

– Continued on next page –

COMPACT DISC DECK RECEIVER

MICROFILM

CD player section

System compact disc and digital audio system
Laser Semiconductor laser (λ = 780nm).

Emission
duration: continuous

Laser output Max. 44.6µF*

*This output is the value measured at a distance of
200 mm from the objective lens surface on the

Optical Pick-up block with 7 mm aperture.
Wavelength 780 - 790 nm
Frequency response 2 Hz - 20 kHz (±0.5 dB)
Signal-to-noise ratio More than 90 dB
Dynamic range More than 90 dB

Tape player section

Recording system 4-track 2-channel stereo
Frequency response (DOLBY NR OFF)

60 - 13,000 Hz (±3 dB), using a Sony

TYPE I cassette

60 - 14,000 Hz (±3 dB), using a Sony

TYPE II cassette
Wow and flutter ±0.15% W. Peak (IEC)

0.1% W. RMS (NAB)

±0.2% W. Peak (DIN)

Tuner section

FM stereo, FM/AM superheterodyne tuner

FM tuner section

Tuning range
(HCD-D590): 87.5 - 108.0 MHz (100kHz) step
(HCD-XB4): 87.5 - 108.0 MHz (50kHz) step
Antenna FM wire antenna
Antenna terminals 75 ohm unbalanced
Intermediate frequency 10.7 MHz

AM tuner section

Tuning range
(HCD-D590): 530 - 1,710 KHz (with the tuning interval set at 10

kHz)

531 - 1,710 KHz (with the tuning interval set at 9

kHz)
(HCD-XB4): 531 - 1,602 kHz

(with the tuning interval set at 9 kHz)

530 - 1,710 KHz

(with the tuning interval set at 10 kHz)
Antenna AM loop antenna, External antenna terminals
Intermediate frequency 450 kHz

General

Power requirements
US, Canadian models: 120 V AC, 60 Hz
Mexican model: 120 V AC, 50/60 Hz
Australian model: 220 - 240 V AC, 50/60 Hz
Other models: 110 - 120 V or 220 - 240V AC, 50/60 Hz Adjust-

able with voltage selector
Power consumption
(HCD-D590) 198 watts
(HCD-XB4) 165 watts
Dimensions (w/h/d) Approx. 355 x 425 x 435 mm (14 x 16 3/4 x 17 1/

4 in) incl. projecting parts and controls
Mass
(LBT-D590) Approx. 12.3 kg (27 lb 2 oz.)
(LBT-XB4) Approx. 11.5 kg (25 lb 6 oz.)

Supplied accessories: AM loop antenna (1)

Remote RM-SD70 (1)

Sony SUM-3 (NS)

batteries (2)

FM wire antenna (1)

Speaker cords (2)

Design and specifications are subject to change without notice.

– 2 –

CAUTION

1.5 k

Ω

0.15 µF

AC
voltmeter
(0.75 V)

To Exposed Metal
Parts on Set

Earth Ground

Use of controls or adjustments or performance of
procedures other than those specified herein may
result in hazardous radiation exposure.

Notes on chip component replacement

• Never reuse a disconnected chip component.

• Notice that the minus side of a tantalum capacitor may be dam-

aged by heat.

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.

This appliance is classified as a CLASS 1 LASER product.
The CLASS 1 LASER PRODUCT MARKING is located on
the rear exterior.

SAFETY CHECK-OUT

After correcting the original service problem, perform the follow­ing safety check before releasing the set to the customer:
Check the antenna terminals, metal trim, “metallized” knobs, screws,
and all other exposed metal parts for AC leakage.
Check leakage as described below.

LEAKAGE TEST

The AC leakage from any exposed metal part to earth ground and
from all exposed metal parts to any exposed metal part having a
return to chassis, must not exceed 0.5 mA (500 microampers.). Leak­age current can be measured by any one of three methods.

1. A commercial leakage tester, such as the Simpson 229 or RCA
WT-540A. Follow the manufacturers’ instructions to use these
instruments.

2. A battery-operated AC milliammeter. The Data Precision 245
digital multimeter is suitable for this job.

3. Measuring the voltage drop across a resistor by means of a V OM
or battery-operated A C v oltmeter . The “limit” indication is 0.75
V, so analog meters must have an accurate low-voltage scale.
The Simpson 250 and Sanwa SH-63Trd are examples of a pas­sive VOM that is suitable. Nearly all battery operated digital
multimeters that have a 2 V AC range are suitable. (See Fig. A)

Laser component in this product is capable of emitting radiation
exceeding the limit for Class 1.

The following caution label is located inside the unit.

Dolby noise reduction manufactured under license from Dolb y
Laboratories Licensing Corporation.
“DOLBY” and the double-D symbol a are trademarks of Dolb y
Laboratories Licensing Corporation.

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.

Fig. A. Using an AC voltmeter to check AC leakage.

ATTENTION AU COMPOSANT AYANT RAPPORT

À LA SÉCURITÉ!

LES COMPOSANTS IDENTIFIÉS P AR UNE MARQUE !
SUR LES DIAGRAMMES SCHÉMATIQUES ET LA LISTE
DES PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ
DE FONCTIONNEMENT. NE REMPLACER CES COM­POSANTS QUE PAR DES PIÈCES SONY DONT LES
NUMÉROS SONT DONNÉS DANS CE MANUEL OU
DANS LES SUPPLÉMENTS PUBLIÉS PAR SONY.

– 3 –

TABLE OF CONTENTS

1. GENERAL

Getting Started.................................................................. 5

Basic Operations............................................................... 8

The CD Player .................................................................. 12

The Tape Deck .................................................................. 14

DJ Effects ......................................................................... 15

Sound Adjustment ............................................................ 16

Other Features .................................................................. 18

2. DISASSEMBLY........................................................... 21

SERVICING NOTES

NOTES ON HANDLING THE OPTICAL PICK-UP
BLOCK OR BASE UNIT

The laser diode in the optical pick-up block may suffer electrostatic
break-down because of the potential difference generated by the
charged electrostatic load, etc. on clothing and the human body.
During repair, pay attention to electrostatic break-down and also
use the procedure in the printed matter which is included in the
repair parts.
The flexible board is easily damaged and should be handled with
care.

3. TEST MODE ................................................................ 29

4. MECHANICAL ADJUSTMENTS.......................... 31

5. ELECTRICAL ADJUSTMENTS

DECK Section .................................................................. 31

Tuner Section.................................................................... 34

CD Section........................................................................ 35

6. DIAGRAMS

6-1. Block Diagrams

Tuner Section.................................................................... 39

CD Section........................................................................ 40

Main Section..................................................................... 41

6-2. Schematic Diagram – BD Section –................................. 43

6-3. Printed Wiring Board – BD Section – .............................. 45

6-4. Schematic Diagram – CD Motor Section –..................... 47

6-5. Printed Wiring Boards – CD Motor Section –................. 49

6-6. Schematic Diagram – Tuner Section – ............................ 51

6-7. Printed Wiring Board – Tuner Section – ......................... 53

6-8. Printed Wiring Boards – Deck Section –......................... 55

6-9. Schematic Diagram – Deck Section –............................. 57

6-10. Schematic Diagram – Main Section – ............................. 61

6-11. Printed Wiring board – Main Section –........................... 65

6-12. Schematic Diagrm – Panel Section – ............................... 68

6-13. Printed Wiring Boards – Panel Section – ......................... 71

6-14. Printed Wiring Boards – Power Section – ........................ 75

6-15. Schematic Diagram – Power Section – ............................ 77

6-16. IC Pin Function Description ............................................. 82

NOTES ON LASER DIODE EMISSION CHECK

The laser beam on this model is concentrated so as to be focused on
the disc reflective surface by the objective lens in the optical pick­up block. Therefore, when checking the laser diode emission, ob­serve from more than 30 cm away from the objective lens.

MODEL IDENTIFICATION

– BACK PANEL –

PARTS No.

MODEL PARTS No.
D590: US model 4-987-043-7π
D590: Canadian model 4-987-043-8π
XB4 4-987-927-0π

7. EXPLODED VIEWS .................................................. 86

8. ELECTRICAL PARTS LIST ................................... 95

– 4 –

SECTION 1

GENERAL

This section is extracted
from instruction manual.

– 5 –

– 6 –

– 7 –

– 8 –

– 9 –

– 10 –

– 11 –

– 12 –

– 13 –

– 14 –

– 15 –

– 16 –

– 17 –

– 18 –

– 19 –

– 20 –

• This set can be disassembled in the order shown below.

(Pag

)

SECTION 2

DISASSEMBLY

CASE
(Page 21)

FRONT PANEL
SECTION
(Page 22)

MAIN
SECTION
(Page 23)

CD MECHANISM
DECK SECTION
(Page 23)

TAPE MECHANISM
DECK SECTION
(Page 24)

CD LID ASS’Y
SECTION
(Page 25)

MAIN BOARD

e 22

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

CASE

AUDIO BOARD
(Page 28)

CASSETTE
LID ASS’Y
(Page 24)

PANEL (A)/(B)
SUB ASS’Y
(Page 25)

3

case

BASE UNIT
(Page 26)

DISC TABLE
(Page 26)

CAPSTAN MOTOR
(Page 28)

1

three screws
(case 3 point)

BD BOARD
(Page 27)

OPTICAL
PICK-UP
(Page 27)

SLED
MOTOR
(Page 27)

1

three screws
(case 3 point)

– 21 –

2

seven screws
(BVTT 3

×

6)

FRONT PANEL SECTION

3

front panel section

1

three frat wires
(CN102, 205, 206)

2

four screws
(BVTP 3

×

8)

MAIN BOARD

3

connector
(CN901)

5

power cord

6

back panel

IC201

8

4

ereven scre ws
(BVTP 3

1

two flat wires
(CN1, 202)

9

MAIN board

connector
(CN101)

×

8)

2

connector
(CN203)

– 22 –

7

two screws
(BVTP 3

×

8)

MAIN SECTION

3

two screws
(BVTP 3

2

connector
(CN203)

×

8)

1

flat wire (CN202)

4

main section

3

screw
(BVTP 3

3

two screws
(BVTP 3

×

8)

×

8)

CD MECHANISM DECK SECTION

4

CD mechanism
deck section

3

five screws
(BVTP 3

×

8)

2

flat wire
and lead wire

– 23 –

1

Open the clamp.

TAPE MECHANISM DECK SECTION

4

three screws
(BVTP 2.6

3

two flat wires
(CN601, 1001)

×

8)

A

4

three screws
(BVTP 2.6

5

×

8)

Remove the tape mechanism
deck section to direction of the arrow

A

.

2

Open the
cassette lids.

CASSETTE LID ASS’Y

1

two springs

1

Push the
two buttons.

3

two bracket

2

two screws
(BVTP 2.6

×

8)

– 24 –

CD LID ASS’Y SECTION

5

connector
(CN671)

6

four screws
(BVTP 2.6

×

8)

7

CD lid ass’y

4

2

3

CD-B1 SW board

connector
(CN661)

four screws
(BVTP 2.6

×

8)

PANEL (A) / (B) SUB ASS’Y

3

two claws

1

connector
(CN642)

1

2

four screws
(BVTP 2.6

connector
(CN612)

×

8)

4

panel (A) sub ass’y

5

two claws

6

panel (B) sub ass’y

– 25 –

BASE UNIT

DISC TABLE

2

boss

3

base unit

1

yoke bracket

Note:

When the disc table is installed, adjust the positions
of roller cam and mark z as shown in the figure, then
set to the groove of disc table.

A

2

bracket (BU)

1

screw
(BVTP 3

×

8)

1

screw
(BVTP 3

3

step screw

×

8)

4

disc table

– 26 –

A

BD BOARD

6

Removal
the four solders.

1

3

5

screw
(BVTP 2.6

two screws
(PTPWH M2.6

two springs

×

8)

1

×

6)

two screws
(PTPWH M2.6

2

optical pick-up
section

3

4

flat wire
(CN101)

7

BD board

limit switch

two springs

×

6)

OPTICAL PICK-UP, SLED MOTOR

2

sled shaft

3

optical pick-up

1

claw

5

sled motor

4

two screws
(P2

×

3)

– 27 –