Sony HCD-DX6AV, HCD-BX6AV Service Manual

HCD-BX6AV/DX6AV

SERVICE MANUAL

Ver 1.1 2001.07

HCD-BX6AV/DX6AV is the Amplifier, CD player, Tape player and Tuner section in MHC-BX6AV/DX6AV.

Manufactured under license from Dolby Laboratories Licensing Corporation. Additionally licensed under Canadian patent 1,037,877. “Dolby”, the double-D symbol ; and “PRO LOGIC” are trademarks of Dolby Laboratories Licensing Corporation.

AUDIO POWER SPECIFICATIONS: (US model only)

POWER OUTPUT AND TOTAL HARMONIC DISTORTION:

with 6 ohm loads both channels driven, from 120-10,000 Hz; rates 10 watts per channel minimum RMS power, with no more than 10% total harmonic distortion from 250 milliwatts to rated output.

Amplifier section

US model Center Speaker:

Continuous RMS power output (reference)

Rear Speaker:

Continuous RMS power output (reference)

Canadian model Front Speaker:

Continuous RMS power output (reference)

Total harmonics distortion

Center Speaker:

Continuous RMS power output (reference)

Rear Speaker:

Continuous RMS power output (reference)

AEP, UK models Front Speaker:

DIN power output (rated) 40 + 40 watts

Continuous RMS power output (reference)

Music power output (reference)

40 watts (6 ohms at 1 kHz, 10% THD)

40 + 40 watts (6 ohms at 1 kHz, 10% THD)

60 + 60 watts (6 ohms at 1 kHz, 10% THD)

Less than 0.07% (6 ohms at 1 kHz, 30 W)

40 watts (6 ohms at 1 kHz, 10% THD)

40 + 40 watts (6 ohms at 1 kHz, 10% THD)

(6 ohms at 1 kHz, DIN)

50 + 50 watts (6 ohms at 1 kHz, 10% THD)

100 + 100 watts (6 ohms at 1 kHz, 10% THD)

9-929-250-12 Sony Corporation

2001G0500-1 Home Audio Company C 2001.7 Shinagawa Tec Service Manual Production Group

Photo: HCD-BX6AV

CD Section

Tape deck Section

SPECIFICATIONS

Center Speaker:

DIN power output (rated) 25 watts

Continuous RMS power output (reference)

Music power output (reference)

Rear Speaker:

DIN power output (rated) 25 + 25 watts

Continuous RMS power output (reference)

Music power output (reference)

Other models:

The following measured at AC 120/240 V, 50/60 Hz

Front Speaker:

DIN power output (rated) 45 + 45 watts

Continuous RMS power output (reference)

Center Speaker:

DIN power output (rated) 30 watts

Continuous RMS power output (reference)

Rear Speaker:

DIN power output (rated) 30 + 30 watts

US Model

Canadian Model

AEP Model

UK Model

HCD-BX6AV

E Model

Australian Model

HCD-DX6AV

Model Name Using Similar Mechanism HCD-BX2/DX2 CD Mechanism Type EXL-M7 Optical Pick-up Name OPTIMA-7 Model Name Using Similar Mechanism HCD-RXD6AV Tape Transport Mechanism Type CWL-44-RR

(6 ohms at 1 kHz, DIN)

35 watts (6 ohms at 1 kHz, 10% THD)

70 watts (6 ohms at 1 kHz, 10% THD)

(6 ohms at 1 kHz, DIN)

35 + 35 watts (6 ohms at 1 kHz, 10% THD)

70 + 70 watts (6 ohms at 1 kHz, 10% THD)

(6 ohms at 1 kHz, DIN)

60 + 60 watts (6 ohms at 1 kHz, 10% THD)

(6 ohms at 1 kHz, DIN)

40 watts (8 ohms at 1 kHz, 10% THD)

(6 ohms at 1 kHz, DIN)

Continuous RMS power output (reference)

Inputs MD/VIDEO IN: voltage 250/450 mV, (phono jacks) impedance 47 kilohms DVD INPUT:

FRONT IN: voltage 450 mV, (phono jacks) impedance 47 kilohms REAR IN: voltage 450 mV, (phono jacks) impedance 47 kilohms CENTER IN: voltage 450 mV, (phono jacks) impedance 47 kilohms WOOFER IN: voltage 450 mV, (phono jacks) impedance 47 kilohms

Outputs PHONES: accepts headphones of (stereo mini jack) 8 ohms or more FRONT SPEAKER: accepts impedance of 6 to

REAR SPEAKER: accepts impedance of 6 to

CENTER SPEAKER: accepts impedance of 6 to

WOOFER: Voltage 1 V, impedance

CD player section

System Compact disc and digital

Laser Semiconductor laser

Laser output Max. 44.6

40 + 40 watts (6 ohms at 1 kHz, 10% THD)

16 ohms

1 kilohms

audio system (λ=780nm)

Emission duration: continuous

µ

W* *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.

– Continued on next page –

COMPACT DISC DECK RECEIVER

Wavelength 780 – 790 nm Frequency response 20 Hz – 20 kHz (±0.5 dB) Signal-to-noise ratio More than 90 dB Dynamic range More than 90 dB CD OPTICAL DIGITAL OUT (Square optical connector jack, rear panel) Wavelength 660 nm Output Level –18 dBm

Tape player section

Recording system 4-track 2-channel stereo Frequency response 40 – 13,000 Hz (±3 dB),

Tuner section

FM stereo, FM/AM superheterodyne tuner

FM tuner section

Tuning range 87.5 – 108.0 MHz Antenna FM lead antenna Antenna terminals 75 ohm unbalanced Intermediate frequency 10.7 MHz

AM tuner section

Tuning range US, Canadian models: 530 – 1,710 kHz

AEP, UK and Middle Eastern models:

Other models: 531 – 1,602 kHz

Antenna AM loop antenna Antenna terminals External antenna terminal Intermediate frequency 450 kHz

General

Power requirements US, Cnadian models: 120 V AC, 60 Hz AEP, UK models: 230 V AC, 50/60 Hz Australian model: 220 – 240 V AC, 50/60 Hz Mexican model: 120 V AC, 60 Hz Other models: 110 – 120 V or 220 – 240 V AC, 50/

Power consumption US model: 160 watts Canadian model: 180 watts AEP, UK models: 160 watts Other models: 160 watts

Dimensions (w/h/d)

Mass US model: Approx. 9.2 kg Canadian model: Approx. 9.2 kg AEP, UK models: Approx. 9.2 kg Other model: Approx. 9.1 kg

Supplied accessories: AM loop antenna (1)

Design and specifications are subject to change without notice.

using Sony TYPE I cassette

(with the interval set at 10 kHz) 531 – 1,710 kHz (with the interval set at 9 kHz)

531 – 1,602 kHz (with the interval set at 9 kHz)

(with the interval set at 9 kHz) 530 – 1,710 kHz (with the interval set at 10 kHz)

60 Hz Adjustable with voltage selector

Approx. 280 x 325 x 390 mm

FM lead antenna (1) Remote Commander (1) Speaker cords (2) Center speaker pads (4)

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 PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY.

ATTENTION AU COMPOSANT AYANT RAPPORT

À LA SÉCURITÉ!

LES COMPOSANTS IDENTIFIÉS P AR UNE MARQUE 0 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.

SERVICING NOTES

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 A C leaka ge from an y e xposed metal part to earth gr ound and from all exposed metal parts to any exposed metal part having a return to chassis, must not exceed 0.5 mA (500 microamperes.). 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. Follo w 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 VOM or battery-operated AC voltmeter. The “limit” indication is 0.75 V, so analog meters must have an accurate lowvoltage scale. The Simpson 250 and Sanwa SH-63T rd are e xamples of a passive VOM that is suitable. Nearly all battery operated digital multimeters that have a 2 V A C range are suitable. (See Fig. A)

To Exposed Metal Parts on Set

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.

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 pick-up block. Therefore, when checking the laser diode emission, observe from more than 30 cm away from the objective lens.

• MODEL IDENTIFICATION – Rear Panel –

1.5 k

0.15 µF

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

Ω

Earth Ground

The following caution label is located inside the unit.

AC voltmeter (0.75 V)

Power Voltage Indication

Model Power Voltage Indication

US model AC: 120 V - 60 Hz 160 W Canadian model AC: 120 V - 60 Hz 180 W AEP, UK models AC: 230 V - 50/60 Hz 160 W Australian model AC: 220 – 240 V - 50/60 Hz 160 W Mexican model AC: 120 V - 50/60 Hz 160 W Other models AC: 110 – 120 V/220 – 240 V - 50/60 Hz 160 W

3

• LOCATION OF CONTROLS

SECTION 2

GENERAL

– Front View –

1 TIMER indicator 2 I/1 button and indicator 3 DISPLAY button 4 SPECTRUM button 5 GROOVE button and indicator 6 FILE SELECT button 7 PHONES jack 8 ENTER button 9 –, . button 0 DISC SKIP EX-CHANGE button qa x button qs DISC 1 button qd h H button and indicator qf DISC 2 button qg DISC 3 button qh X button qj Z OPEN/CLOSE button qk >, + button

1 2

3 4 5 6

7 8

9

qa

0 qf

qs qh qk

qgqd

qj

ql w; wa

ws

wd wf

wg

wh

wl

ea edwj

eswk e; ql PLAY MODE, DIRECTION button

(US, Canadian, E, Australian models) PLAY MODE, PTY/DIRECTION button (AEP, UK models)

w; REPEAT, STEREO/MONO button wa EDIT, TUNER MEMORY button ws VOLUME knob wd j J button wf REC button and indicator wg REC PAUSE button and indicator wh CD SYNC button wj MD (VIDEO) button and indicator wk DOLBY PRO LOGIC button and indicator wl TAPE A/B button and indicator e; DVD 5.1CH button and indicator ea CD button and indicator es DSP button and indicator ed TUNER/BAND button and indicator

– Rear View –

4

1 3 876542

0

9

1 FM ANTENNA jack or terminals 2 AM ANTENNA terminals 3 WOOFER OUT jack 4 MD/VIDEO IN jacks 5 DVD INPUT jacks 6 CENTER SPEAKER terminals 7 REAR SPEAKER terminals 8 FRONT SPEAKER terminals 9 CD DIGITAL OUT (OPTICAL) connector 0 VOLTAGE SELECTOR switch (E model)

Step 3: Setting the time

You must set the time before using the timer functions.

The clock uses a 24-hour system on the European model, and a 12-hour system on other models.

The 12-hour system is used for illustration purposes.

2,4

2

Press . or > repeatedly to set the hour.

3

Press ENTER.

The minute indication flashes.

4

Press . or > repeatedly to set the minute.

This section is extracted from instruction manual.

1

Press CLOCK/TIMER SET.

The hour indication flashes.

3,5 1

5

Press ENTER.

The clock starts working.

Tip

If you make a mistake, start over from step 1.

To change the time

The previous explanation shows how to set the time while the power is off. To change the time while the power is on, do the following:

1 Press CLOCK/TIMER SET. 2 Press . or > repeatedly to select SET

CLOCK.

3 Press ENTER. 4 Perform steps 2 through 5 above.

Notes

• The clock settings are canceled when you disconnect the power cord or if a power failure occurs.

• For MHC-BX6AV, you cannot set the time in the Power Saving Mode (see page 12).

9

5

SECTION 3

DISASSEMBLY

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

CD DOOR

2 five claws

3 CD door

1 Pull out the CD tray. 4 Push the CD tray.

CD ASS’Y

6 wire (flat type) (22core)

(CN705)

1 screw

(M3 ×12)

4 four claws

8 CD ass'y

CD TRAY (page 9)

3

2 two screws

(BVTP3 × 12)

5 connector

(CN703)

7 harness (6core)

(CN304)

1 screw

(M3 ×12)

6

FRONT PANEL SECTION

)

1 two connectors

(CN302, 305)

1 connector

(CN301)

4 screw (M3 × 12)

1 connector

(CN502)

3 ten screws

(BVTP3 × 10

4 screw (M3 × 12)

5 front panel section

MAIN BOARD

4 connector

6 main PC holder (L)

(CN101)

2 three screws

(BVTP3 × 12)

3 two screws

(BVTP3 × 12)

5 two claws

9 MAIN board

2 harness (5core)

(CN303)

3 two screws

(BVTP3 × 12)

7 two claws

8 main PC holder (R)

1 two connectors

7

FRONT BOARD AND CENTER/REAR BOARD SECTION, DC FAN (M505)

)

3 four screws

(BVTP3 × 10)

qs FRONT board and

CENTER/REAR board section

7 connector

(CN505)

9 holder

8 four screws

(3 × 30)

4

1 connector

9 holder

qa DC fan

(M505)

0 main chassis holder

(CN501)

5 three screws

(BVTP3 × 6)

3 eight screws

(BVTP3 × 10

6 rear cover

5 three screws

(BVTP3 × 6)

2 three screws

(PTPWH4 × 10)

MECH DECK (CWL-44-RR)

1 six screws

(BVTP3 ×8)

2 harness

3 mech deck (CWL-44-RR)

8

CD TRAY

)

1 two screws

5 bracket

2 top cabinet

(KTP3 × 8)

1 two screws

(KTP3 × 8)

4 screw

(BTP3 × 10)

3 wire (flat type) (5core

(CN06)

6 screw (BTP3 × 10)

7 bracket

DECORD BOARD

8 CD tray

6 DECORD board

1 wire (flat type) (5core)

(CN706)

3 connector

(CN707)

5 connector

(CN702)

4 three screws

(BTP2.6 × 6)

2 wire (flat type) (15core

(CN701)

9

BASE UNIT

)

4 screw

(PTPWH3 × 8)

2 flange screw

5 UD-cam

3 UD-gear

7 spring

6 spring

CASSETTE LID

8 spring

9 base unit

1 two screws

(PTPWH3 × 10

10

cassette door (Note: Four claws are used.)

SECTION 4

d

DIAGRAMS

4-1. NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS

Note on Printed Wiring Board:

• Y : parts extracted from the conductor side.

• b : Pattern from the side which enables seeing. (The other layers' patterns are not indicated.)

Note on Schematic Diagram:

• All capacitors are in µF unless otherwise noted. U: µF, pF: µµF 50 WV or less are not indicated except for electrolytics and tantalums.

• If a numeric value of capacitor is a decimal function, the preceding zero may be omitted. (For example, .1 expresses 0.1)

• All resistors are in Ω and 1/ specified.

f

•

• 2 : nonflammable resistor.

• C : panel designation.

• U : B+ Line.

• V : B– Line.

• H : adjustment for repair.

• Voltages are taken with a V OM (Input impedance 10 MΩ).

• Waveforms are taken with a oscilloscope.

• Circled numbers refer to waveforms.

• Signal path.

• Abbreviation

: internal component.

Note:

The components identified by mark 0 or dotted line with mark 0 are critical for safety. Replace only with part number specified.

Voltage variations may be noted due to normal production tolerances.

F : FM f : AM E : TAPE PLAY (DECK A) d : TAPE PLAY (DECK B) G : TAPE REC J : CD PLAY (ANALOG OUT) c : CD PLAY (DIGITAL OUT)

CND : Canadian model

4

W or less unless otherwise

Note:

Les composants identifiés par une marque 0 sont critiques pour la sécurité. Ne les remplacer que par une pièce portant le numéro spécifié.

• Circuit Boards Location

SW D board

SW B board

SW C board

DECORD board

MOTOR boar

SW A board

PHOTO SOCKET board

MAIN board

FRONT board

PANEL board

H/P board

CENTER/REAR board

BACK UP board

1111

HCD-BX6AV/DX6AV

4-2. SCHEMATIC DIAGRAM – CD Section (1/4) – • See page 28 for Waveforms. • See page 29 for IC Block Diagram.

1

2 3 4 5 6 7 8 9 10 11 12 13 14

15 16

A

DECORD BOARD

(1/4)

B

C

B+

109

B+ B+

Q701

AUTOMATIC POWER

CONTROL

2.4

5

4.8

C701

47

16V

D

8

76

CN701

15P

E

2.5

4.8

B+

0

2.5

C704

0.033 100V

100V

2.6

1.8 1.8

2.5

1.2

100V

1.6

4.3

0.1

2.8

F

100V

5

0

5

0

5

4.9

1.3

2.5

B+

1

DECORD

BOARD

(2/4)

(Page 13)

2.5

2

G

2.5

100V

1.8

2.5

1.9

2.4

2.3

2.5

1.9

100V

0

OPTICAL PICK-UP

H

I

J

BLOCK

(OPTIMA-7)

100V

C737 .01U

3

RF AMP, FOCUS/TRACKING

1

2.2

2.4

2.3

2.6

0.1 100V

IC701

ERROR AMP

2.5 2.5

50V

100V

2.7

2.5

0.8

2.5

0.033 100V

2.4

2.5

K

05

DECORD

2

BOARD (3/4)

(Page 14)

• Voltages and waveforms are dc with respect to ground under no-signal conditions. no mark : CD PLAY

The components identified by mark 0 or dotted line with mark 0 are critical for safety.

1212

Replace only with part number specified.

Les composants identifiés par une marque 0 sont critiques pour la sécurité. Ne les remplacer que par une pièce portant le numéro spécifié.

4-3. SCHEMATIC DIAGRAM – CD Section (2/4) –

HCD-BX6AV/DX6AV

1

A

B

C

D

2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17

DECORD

BOARD

(2/4)

SW D BOARD

S01

OPTICAL PICK-UP

UP/DOWN DETECT

CN05_

5P

CN707

7P

CN16_

3P

35V

CN16

3P

SW C

BOARD

S02

OPEN/CLOSE

DETECT

DISC TRAY

B+

M104

SLIDE

SW A

BOARD

S04

TURN TABLE

OPERATION

DETECT

CN18

2P

MOTOR BOARD

C01

50

CN18

2P

CN706

5P

CN19

M103

DISC

TABLE TURN

2P

CN06_

5P

CN19

2P

TURN TABLE

POSITION

SW B

BOARD

S03

DETECT

B+

E

CLOK

F

(Page 23)

A

PANEL

BOARD

1

CN605

G

1

DECORD

BOARD

(1/4)

(Page

12)

H

B+

I

12K

0

5

0

J

0

5.7

K

3

DECORD

BOARD

L

(3/4)

(Page

14)

05

B+

5.7

DISC TRAY SLIDE/

DISC TRAY TURN MOTOR

IC704

CONTROL

0

4.3

0.6

0

B+

4.9

0

D706

Q712

REGULATOR

CONTROL SWITCH

Q704

REGULATOR

0

UDZ-5.6B2S

B+

8

B+

0.022

B+

CN705

22P

CN704

6P

+7.5V

PIC DOWN DISC COUNT

B

BOARD (3/4)

CN304

(Page 20)

MAIN

M

DECORD

BOARD (4/4)

(Page 15)

• Voltages are dc with respect to ground under no-signal conditions. no mark : CD PLAY

4

1313

HCD-BX6AV/DX6AV

4-4. SCHEMATIC DIAGRAM – CD Section (3/4) – • See page 29 for IC Block Diagram.

1

2 3 4 5 6 7 8 9 10 11 12 13 14

(Page 12)

DECORD

2

A

DECORD BOARD

(3/4)

BOARD (1/4)

B

DECORD

BOARD

3

(2/4)

B+

C740B

0.0047

C740A

0.0047

2.8

2.5

B+

2.8

0

4

18K

C

D

CN702_

6P

E

M101

(SPINDLE)

CN702

6P

(Page 13)

8

F

M102

(SLED)

S05

(LIMIT)

G

IC703

FOCUS/TRACKING

COIL DRIVE,

SPINDLE/SLED/

DISC TABLE SLIDE/

DISC TRAY TURN

MOTOR DRIVE

PHOTO SOCKET

H

I

J

BOARD

2.6

3

PH701

TOTX178

CD DIGITAL

OUT (OPTICAL)

OPTICAL TRANSCEIVER

4.9

2

1

PH701

CN703_

3P

B+

CN703

3P

8

B+

0

2.8

2.5

5

DECORD

BOARD

(4/4)

(Page 15)

2.8

8

2.5

2.8

C740D

0.0047

C740C

0.0047

B+

100V

B+

K

05

• Voltages are dc with respect to ground under no-signal conditions. no mark : CD PLAY

1414

4-5. SCHEMATIC DIAGRAM – CD Section (4/4) – • See page 28 for Waveforms. • See page 29 for IC Block Diagram.

HCD-BX6AV/DX6AV

A

B

C

D

E

F

G

H

1

5

DECORD

BOARD

(3/4)

(Page 14)

2 3 4 5 6 7 8 9 10 11 12 13 14 15 15 16

DECORD

BOARD (2/4)

(Page 13)

4

DECORD

BOARD

B+

5

(4/4)

B+

0.1

4.9

2.4

4

4.8

2.5

2.6

2.5

2.6

4.9

2.5

0.8

2.5

2.6

2

0

0.1

5

4.8

5

0.1

IC702

DIGITAL SIGNAL PROCESSOR,

CLV SERVO, D/A CONVERTER

0

6

2.5

4.9

0

2.6

B+

2.6

C780

B+

0

5

0

7

0

4.9

2.2

2.8

2.1

4.9

2.2

2.1

4.9

0.022

5

0

B+

0.022

I

B+

J

05

• Voltages and waveforms are dc with respect to ground under no-signal conditions. no mark : CD PLAY

1515

HCD-BX6AV/DX6AV

4-6. PRINTED WIRING BOARDS – CD Section – • See page 11 for Circuit Boards Location.

1

2 3 4 5 6 7 8 9 10 11 12

SW D BOARD SW C BOARD

A

B

MOTOR BOARD

M103

(DISC TABLE TURN)

M

_

CN19

CN18

C01

24

CN06

51

1-674-792-

12

2 1

11

(11)

C

SW B BOARD

CN19

12

1-674-789-

TURN TABLE

POSITION

DETECT

S03

11

(11)

SW A BOARD

CN18

21

1-674-788-

S04

TURN TABLE OPERATION

DETECT

11

(11)

DECORD BOARD

3 1

CN16

51

CN05

S01

OPTICAL PICK-UP

UP/DOWN

DETECT

11

(11)

A

PANEL BOARD

CN605

1-674-791-

(Page 22)

22

21

CN705

2

1

7

D

5

1

• Semiconductor

2

4

Location

Ref. No. Location

E

D703 G-7 D706 F-6

R788

CN703

CN16

1 3

S02

1-674-790-

MM

(DISC TRAY SLIDE)

13

M104

OPEN/CLOSE

DETECT

11

(11)

CD DIGITAL OUT (OPTICAL)

PHOTO SOCKET BOARD

1

3

PH701

1

3

IC701 H-9 IC702 E-10 IC703 I-6 IC704 F-7

F

G

H

I

PH701 D-11

Q701 I-8 Q704 F-6 Q712 F-6

05

MAIN BOARD

CN304

(Page 17)

CD

MECHANISM

BLOCK

B

E C B

6

B C E

• Semiconductor Location

1

Ref. No. Location

D001 G-14 D002 G-14 D101 B-14 D102 A-14 D103 C-14 D104 C-14 D106 C-12 D107 D-13 D201 H-4 D202 H-4 D203 H-4 D204 H-4 D205 I-7 D303 E-8 D305 D-9 D306 D-8 D307 E-11 D308 E-11

C740C

6

1

E C B

2

1

14

15

1-678-510-

11

(11)

D309 C-6

OPTICAL PICK-UP

BLOCK

(OPTIMA-7)

D402 F-13 D403 H-13 D405 J-9 D407 J-8 D409 G-9 D410 G-9 D411 H-11 D412 I-11 D417 E-9 D418 G-3 D419 I-3

1616

D420 J-13

Ref. No. Location

D421 J-13 D422 J-12 D423 J-10

IC102 C-11 IC103 A-11 IC201 I-6 IC301 E-6 IC302 C-5 IC303 E-3 IC304 D-13 IC305 E-4 IC306 H-8 IC307 E-11

Q101 B-12 Q103 B-13 Q104 D-13 Q109 B-8 Q110 B-8 Q201 I-4 Q202 I-4 Q203 I-4 Q204 I-4 Q205 I-4 Q206 I-4 Q207 I-4 Q208 H-4 Q209 H-4 Q210 G-6 Q211 G-5

Ref. No. Location

Q213 I-7 Q214 I-7 Q251 J-5 Q252 J-8 Q253 I-8 Q303 E-13 Q304 E-13 Q305 D-9 Q308 G-4 Q309 G-4 Q312 F-3 Q313 F-4 Q316 D-8 Q317 D-7 Q319 D-9 Q320 D-8 Q321 D-14 Q401 I-9 Q403 I-8 Q405 I-8 Q406 H-9 Q411 E-10 Q412 J-9 Q413 J-9 Q414 J-9 Q415 I-9 Q416 J-9 Q419 J-3 Q420 J-3

4-7. PRINTED WIRING BOARDS – MAIN Section – • See page 11 for Circuit Boards Location.

HCD-BX6AV/DX6AV

12345678910111213

TP1

MAIN BOARD

FOR

ADJUSTMENT

A

2

13

45

1

ECB

R130

81

C356A

C355A

B

(AEP, UK)

C

PANEL BOARD

CN102

(Page 22)

2 1

BCE

D

8

E

1

8

1

BCE

ECB

BCE

1365

24

81

DSC

13

15

12

17 18

13

11

141619

BCE

14 15 16

(AEP, UK)

8541

4

1

6 7910

2 358

BCE

FM 75Ω

75Ω

(EXCEPT AEP, UK)

JK303

WOOFER OUT

R

L

R

L

R

L

FM

AM

MD/VIDEO IN

FRONT

REAR

JK101

ANTENNA

JK301

DVD INPUT

F

1

2

1234

9

WOOFER

CENTER

1

ECB

BCE

6

1

G

D

PANEL BOARD

CN101

ECB

D002

(Page 22)

29

30

1

ECB

1

234

H

BCE

ECB

2 1

HRPE201

ECB

8

ECB

GSD

11

112

CENTER/REAR

BOARD CN302

(Page 24)

FRONT

BOARD

CN301

(Page 24) (Page 24)

68

CENTER/REAR

BOARD

CN305

43

1

2

5

6

443

2

5

1

3

2

5

6

ECB

BCE

ECB

BCE

B E F G

DECORD BOARD

CN704

1

CN201

3

BCE

1

5

BCE

HP201

(PB)

112

1324

R251

ECB

(Page 16)

H/P BOARD

653

5

I

1

J

K

2

4

1

JK403

PHONES

5

ECB

1

BCE

05

BCE

ECB

(REC/PB/ERASE)

H

+

– +

–

+

– +

–

BACK UP

BOARD

(Page 24)

CN502

(IMPEDANCE USE 6-16Ω)

R

(IMPEDANCE USE 6-16Ω)

L

R

(IMPEDANCE USE 6-16Ω)

L

CENTER SPEAKER

JK402

REAR SPEAKER

JK401

FRONT SPEAKER

1717

HCD-BX6AV/DX6AV

4-8. SCHEMATIC DIAGRAM – MAIN Section (1/4) – • See page 28 for Waveform. • See page 29 for IC Block Diagram.

(Page 23)

• Voltages and waveforms are dc with respect to ground under no-signal (detuned) conditions. no mark : FM (): AM

(Page 19)

(Page 20)

1818

4-9. SCHEMATIC DIAGRAM – MAIN Section (2/4) – • See page 28 for Waveforms. • See page 29 for IC Block Diagram.

HCD-BX6AV/DX6AV

(Page 18)

(Page 20)

(Page 23)

(Page 21)

• Voltages and waveforms are dc with respect to ground under no-signal (detuned) conditions. no mark : FM [ ] : TAPE PLAY (DECK A) < > : TAPE PLAY (DECK B)

1919

〈〈 〉〉 : TAPE REC

HCD-BX6AV/DX6AV

4-10. SCHEMATIC DIAGRAM – MAIN Section (3/4) –

(Page 13)

(Page 18)

(Page 19)

• Voltages are dc with respect to ground under no-signal (detuned) conditions. no mark : FM

(Page 21)

2020

Sony HCD-DX6AV, HCD-BX6AV Service Manual

TABLE OF CONTENTS

SERVICING NOTES

GENERAL

DISASSEMBLY

DIAGRAMS

4-1. NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS

4-3. SCHEMATIC DIAGRAM – CD Section (2/4) –