Sony HCD-VX550 Manuel utilisateur

HCD-VX550

Chinese Model

SERVICE MANUAL

MINI Hi-Fi COMPONENT SYSTEM

MICROFILM

HCD-VX550 is the Amplifier, Video

CD player, Tape Deck and Tuner

section in MHC-VX550.

Continued on next page

SPECIFICATIONS

Dolby noise reduction manufactured under license

from Dolby Laboratories Licensing Corporation.

“DOLBY” and the double-D symbol aare trade-

marks of Dolby Laboratories Licensing Corporation.

Model Name Using Similar Mechanism NEW

CD Mechanism Type CDM38LH-5BD36L

Base Unit Name BU-26BD36L

Optical Pick-up Name KSS-213D/Q-RP

Model Name Using Similar Mechanism HTC-V5550

Tape Transport Mechanism Type TCM-230AWR2

Section

Tape deck

Section

Amplifier section

The following measured atAC 120, 220, 240 V 50/60

DIN power output (rated)110 + 110 W

(8 Ωat 1 kHz, DIN)

Continuous RMS power output (reference)

140 + 140 W

(8 Ωat 1 kHz, 10% THD)

Inputs

MD IN: voltage 450 mV,

(phono jacks) impedance 47 kΩ

VIDEO (AUDIO) IN: voltage 250 mV,

(phono jacks) impedance 47 kΩ

MIC 1/2 (phone jack): sensitivity 1 mV, impedance

10 kΩ

Outputs

MD OUT (phono jacks): voltage 250 mV

impedance 1 kΩ

VIDEO OUT (phono jack):

max,output level

1Vp-p, unbalanced, Sync

negative, load impedance

75 Ω

S-VIDEO OUT (4-pin/ mini-DIN jack):

Y: 1Vp-p, unbalanced,

Sync negative,

C: 0.286Vp-p,

load impedance 75 Ω

PHONES (stereo phone jack):

accepts headphones of 8 Ω

or more

SPEAKER: accepts impedance of 8 to

16 Ω

SUPER WOOFER Voltage 1 V, impedance1

kΩ

SUPERVIDEO CD/VIDEO CD

/CD player section

System Compact disc and digital

audio and video system

Laser Semiconductor laser

(λ=780nm)

Emission duration:

continuous

Laser output Max. 44.6 µW*

*This output is the value

measured at distance of 200

mm from the objective lens

surface on the Optical Pick-up

Block with 7 mm aperture.

Frequency response 2 Hz - 20 kHz (±0.5 dB)

Wavelength 780 -790 nm

Signal-to-noise ratio More than 90 dB

Dynamic range More than 90 dB

Video color system format

NTSC, PAL

HCD-VX550

2525

7-4. SCHEMATIC DIAGRAM BD BOARD • Refer to page 29 for Waveforms. • Refer to page 45, 46 for IC Block Diagrams.

• Voltages and waveforms are dc with respect to ground

under no-signal conditions.

no mark : CD STOP

( ) : CD PLAY

The components identified by

mark !or dotted line with mark

!are critical for safety.

Replace only with part number

specified.

(Page 26)

HCD-VX550

2626

7-5. SCHEMATIC DIAGRAM VIDEO (1/2) BOARD • Refer to page 29 forWaveforms. • Refer to page 52 for IC Pin Function Description. • Refer to page 28 for Printed Wiring Board.

• Voltages and waveforms are dc with respect to ground

under no-signal conditions.

no mark :VIDEO CD PLAY

(Page 25)

(Page 36)

HCD-VX550

2727

7-6. SCHEMATIC DIAGRAM VIDEO (2/2) BOARD • Refer to page 29 for Waveforms. • Refer to page 54 for IC Pin Function Description. • Refer to page 47 for IC Block Diagram. • Refer to page 28 for Printed Wiring Board.

• Voltages and waveforms are dc with respect to ground

under no-signal conditions.

no mark :VIDEO CD PLAY

∗: Impossible to measure

IC504

+3.3V REG

HCD-VX550

3131

7-9. SCHEMATIC DIAGRAM CD MOTOR SECTION • Refer to page 46 for IC Block Diagrams.

• Voltages are dc with respect to ground under no-signal

conditions.

no mark : CD STOP

DISC TRAY

ADDRESS DETECT

DISC TRAY SLIDE

OPEN

(DISC TRAY SLIDE)

DISC IN DETECT

SENSOR DISC TRAY

SENSOR

DISC

TRAY

TURN

DISC TRAY TURN

MOTOR DRIVER

LEVEL SHIFT

(Page 36)

HCD-VX550

3333

• Voltages are dc with respect to ground under no-signal

conditions.

no mark :TAPE PLAY

( ) : RECORD

PB LEVEL (L)

(DECK A)

PB LEVEL (R)

(DECK A)

PB LEVEL (L)

(DECK B)

PB LEVEL (R)

(DECK B)

PB EQ AMP

(DECK A)

PB EQ AMP

(DECK B)

SWITCHING

REC BIAS (L)

(DECK B)

REC BIAS (R)

(DECK B)

BIAS OSC

REC BIAS

-6.8

(PLAYBACK)

(Page 38)

7-11. SCHEMATIC DIAGRAM AUDIO BOARD • Refer to page 48 for IC Block Diagram.

The components identified by

mark !or dotted line with mark

!are critical for safety.

Replace only with part number

specified.

HCD-VX550

3434

DECK B

PLUNGER DECK A

PLUNGER

(CAPSTAN)

(DECK A 120/70)

(DECK A HALF)

(DECK A REC)

(DECK B HALF)

(DECK B REC)

(DECK B 120/70)

ROTATION DETECT SENSOR

(DECK A)

ROTATION DETECT

SENSOR (DECK B)

(DECK A PLAY) (DECK B PLAY)

CONTROL SWITCH

(Page 38)

7-12. PRINTED WIRING BOARD LEAF SW BOARD • Refer to page 23 for Circuit Boards Location.

7-13. SCHEMATIC DIAGRAM LEAF SW BOARD

• Voltages are dc with respect to ground under no-signal

conditions.

no mark :TAPE PLAY

( ) : RECORD

∗: Impossible to measure

Ref. No. LocationRef. No. Location

• Semiconductor Location

D141 E-10

D191 D-12

D331 E-1

D333 F-1

D334 E-1

D335 F-1

D401 G-11

D403 F-12

D405 H-6

D406 I-4

D407 I-2

D411 G-1

D501 D-7

D502 E-6

D503 D-6

D504 D-7

D505 D-7

D506 D-7

D507 E-6

D509 F-2

D607 E-5

D644 C-8

D801 I-11

D802 G-9

D803 G-11

D831 I-6

D832 I-7

D851 I-10

D852 G-9

D881 H-9

D901 I-4

D902 I-4

D903 I-4

D904 I-4

D905 I-1

D906 H-1

D907 I-5

D908 I-5

D909 I-5

D910 I-5

D915 I-4

D917 F-4

D919 H-3

D921 H-4

D922 G-4

D923 G-4

D924 F-2

IC101 C-10

IC301 B-3

IC381 A-12

IC501 D-5

IC502 D-7

IC801 H-10

IC901 G-6

IC902 G-4

IC903 H-4

IC904 H-3

Q111 D-10

Q112 D-10

Q113 E-9

Q161 C-9

Q162 C-9

Q163 E-9

Q191 D-12

Q192 E-10

Q201 D-9

Q251 C-9

Q331 C-1

Q332 C-2

Q333 C-2

Q334 C-2

Q335 D-1

Q336 F-1

Q337 F-1

Q338 F-1

Q339 F-1

Q340 E-1

Q341 E-1

Q342 F-1

Q343 E-1

Q401 F-12

Q402 E-12

Q411 G-1

Q412 G-1

Q431 G-12

Q432 G-11

Q433 F-11

Q434 F-11

Q435 F-11

Q436 F-11

Q437 G-12

Q439 F-12

Q471 F-2

Q501 D-7

Q508 D-7

Q509 E-7

Q801 H-10

Q803 G-10

Q804 G-9

Q831 G-10

Q832 G-10

Q851 I-10

Q881 I-9

Q901 H-2

Q902 I-1

Q903 H-1

Q904 G-4

Q905 G-4

Q909 I-4

Q911 G-3

Q912 G-4

Q913 H-1

Q914 G-2

Q923 H-1

Q951 G-2

Q952 H-1

DECK A

PLUNGER

DECK B

PLUNGER

(DECK A PLAY)

(DECK A HALF) (DECK A 120/70) (DECK A REC)

(DECK B HALF)

(DECK B PLAY)

(DECK B 120/70)

(DECK B REC)

()

(Page 35)

HCD-VX550

3636

7-15. SCHEMATIC DIAGRAM MAIN (1/4) BOARD • Refer to page 35 for Printed Wiring Board.

(Page 38)

(Page 39)

(Page 37)

(Page 44)

(Page 26)

(Page 31)

• Voltages are dc with respect to ground under no-signal

(detuned) conditions.

no mark :TUNER (FM/AM)

( ) : CD PLAY

HCD-VX550

3737

7-16. SCHEMATIC DIAGRAM MAIN (2/4) BOARD • Refer to page 35 for Printed Wiring Board.

• Voltages are dc with respect to ground under no-signal

(detuned) conditions.

no mark :TUNER (FM/AM)

(Page 38)

(Page 39)

(Page 43)

(Page 36)

D3001

11ES2 D3002

11ES2

The components identified by

mark !or dotted line with mark

!are critical for safety.

Replace only with part number

specified.

HCD-VX550

3838

7-17. SCHEMATIC DIAGRAM MAIN (3/4) BOARD • Refer to page 35 for Printed Wiring Board.

• Voltages are dc with respect to ground under no-signal

conditions.

no mark :TUNER (FM/AM)

( ) : CD PLAY

{} : PLAYBACK (DECK A)

[ ] : PLAYBACK (DECK B)

〈〈 〉〉 : RECORD

CN371

15P

(Page 34)

(Page 39)

(Page 41)

(Page 43)

(Page 39)

(Page 37)

(Page 36)

(Page 33)

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