Sony Hcd-n555avk User manual

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SERVICE MANUAL

MICROFILM

COMPACT DISC DECK RECEIVER

E Model

Model Name Using Similar Mechanism HCD-N355/N355K

CD Mechanism type CDM37-5BD19

Base Unit Type BU-5BD19

Optical Pick-up type KSS-213BA/S-N

Model Name Using Similar Mechanism HCD-N355/N355K

Tape Transport Mechanism Type TCM-220WR2E

HCD-N555AVK

TAPE

DECK

SECTION

* Manufactured under license from Dolby Laboratories

Licensing Corporation.

DOLBY, the double-D symbol aand “PRO LOGIC”

are trademarks of Dolby Laboratories Licensing Corpo-

ration.

SPECIFICATIONS

AM tuner section

Tuning range

Saudi Arabia model:

MW: 531-1,602 kHz (with the MW tuning interval set at 9 kHz)

SW: 5.95-17.90 MHz

Other models:

AM: 531-1,602 kHz (with the AM tuning interval set at 9 kHz)

530-1,710 kHz (with theAM tuning interval set at 10 kHz)

Aerial AM loop aerial

External aerial

terminals

Intermediate frequency

450 kHz

SECTION

– Continued on next page –

CD player section

System Compact disc and

digital audio system

Laser Semiconductor laser

(λ=780nm)

Emission duration:

continuous

laser output Max 44.6 µW*

* This output is the value measured at a distance of 200 mm from the objec-

tive 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

Tuner section

FM stereo, FM/AM superheterodyne tuner

FM tuner section

87.5-108.0 MHz (50 kHz step)

Aerial FM wire aerial

Aerial terminals 75 ohm unbalanced

Intermediate frequency

10.7 MHz

HCD-N555AVK is the tuner, deck, CD

and amplifier section in LBT-N555AVK.

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Tape player section

Recording system

4-track 2-channel stereo

Frequency response

40-13,000 Hz (±3 dB), using

SONY TYPE I cassette

40-14,000 Hz (±3 dB), using

SONY TYPE II cassette

Wow and flutter

± 0.15% W.Peak (IEC)

0.1% W.RMS (NAB)

± 0.2% W.Peak (DIN)

Amplifier section

Peak music power output:

1,400 W (6 a t 1 kHz, 10% THD)

Continuous RMS power output:

FRONT SPEAKER

45 W + 45 W (6 ohms, at 1 kHz, 5% THD)

SUPER WOOFER

45 W + 45 W (6 ohms, 5% THD)

SURROUND CENTER SPEAKER

40 W (8 ohms, at 1kHz 5% THD)

SURROUND REAR SPEAKER

20 W + 20 W (16 ohms, at 1 kHz, 5% THD)

Inputs

PHONO (phono jack):

Sensitivity 3 mV, impedance 47 kilohms

LD/VIDEO (AUDIO) (phono jack):

Sensitivity 250 mV, impedance 47 kilohms

MIC (phone jack):

Sensitivity 1 mV, impedance 10 kilohms

Outputs

PHONES (phone jack):

accept headphones of 6 to 16 ohms

FRONT SPEAKER: accept impedance of 6 to 16 ohms

SURROUND SPEAKER CENTER:

accept impedance of 8 to 16 ohms

SURROUND SPEAKER REAR:

accept impedance of 16 ohms

SUPER WOOFER:

accept impedance of 6 to 16 ohms

General

Power requirements

Malaysia model:

220-240 V AC, 50/60 Hz

Other models:

110-120 V or 220-240 V AC

adjustable, 50/60 Hz

Power consumption

240 W

Dimensions

Approx. 355 x 425 x 400 mm (w/h/d)

incl. projecting parts and controls

Mass

Approx. 13 kg

Design and specifications subject to change without notice.

Laser component in this product is capable of emitting radiation

exceeding the limit for Class 1.

This appliance is classified as a

CLASS 1 LASER product.

TheCLASS 1LASER PRODUCT

MARKING is located on the rear

exterior.

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.

Flexible Circuit Board Repairing

• Keep the temperature of 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.

CAUTION

Use of controls or adjustments or performance of

procedures other than those specified herein may result in

hazardous radiation exposure.

Thiscaution label

is located inside

the unit.

SAFETY-RELATED COMPONENTWARNING !!

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.

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SERVICING NOTE

NOTES ON HANDING 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.

FL DisplayTube, LED All Lit and Key Check mode

When the TUNER/BAND , DISPLAY/DEMO , and FILE 2 but-

tons are pressed simultaneously, the FL display tube and LEDs will

all light up. Press any button to enter the key check mode.

When the key check mode is entered, the FL display tube displays

“K 1 J0 V0”. Each time a button is pressed, the counter increases in

the following order, K 2 nK 3 nK 4.

If buttons already pressed once are pressed again, the counter will

not increase. When the VOLUME knob is rotated in the + direction,

the count increases in the following order.

V1 nV2 nV3.

When rotated in the – direction, it decreases in the following order.

V0 nV9 nV8.

When the AMS dial is rotated in the clockwise direction, the count

increases in the following order.

J1 nJ2 nJ3.

When rotated in the counterclockwise direction, it decreases in the

following order.

J0 nJ9 nJ8.

To exit form the test mode, press the TUNER/BAND , DISPLAY/

DEMO , FILE 2 buttons simultaneously again.

How to switch LD/VIDEO which is the function name of

external input

The LD/VIDEO display which is the function name of external input

is set to "LD" on shipment. The display can be changed as below:

When the power is turned off, pressing the POWER and FUNC-

TION buttons simultaneously, "VIDEO" is displayed on the FL dis-

play tube. In this operation, the function name of external input is

switched to "VIDEO". Turn the power off in the same way, pressing

the POWER and FUNCTION buttons simultaneously again, "LD"

is displayed on the FL display tube. In this operation, the function

name of external input is switched to "LD". The function names of

external input can be changed at will by the way of the above.

How to reset all

Pressing the TUNER/BAND , DISPLAY/DEMO and FILE 3 buttons

simultaneously , all are reset and returned to as when the unit was

shipped.

Switching the channel step 9 kHz/10 kHz

Press ENTER/NEXT button and POWER button simultaneously

to switch the AM channel step 9 kHz and 10 kHz. Be sure not to

change with carelessness.

MODEL

E, Indonesian model

Saudi Arabia model

Singapore (SP2) model

Singapore (SP4) model

Malaysia model

PARTS No.

4-978-194-5π

4-978-194-6π

4-978-194-7π

4-978-194-8π

4-978-194-9π

Parts No.

NOTE: The difference between SP2 and SP4 is the back panel only.

MODEL IDENTIFICATION

– BACK PANEL –

123456789

2345678

123456789

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6. EXPLODED VIEWS

6-1. Case and Back Panel Section ............................................... 88

6-2. Panel Board Section ............................................................. 89

6-3. Front panel Section .............................................................. 90

6-4. Chassis Section .................................................................... 91

6-5. TC Mechanism Section 1 (TCM-220WR2E) ...................... 92

6-6. TC Mechanism Section 2 (TCM-220WR2E) ...................... 93

6-7. TC Mechanism Section 3 (TCM-220WR2E) ...................... 94

6-8. CD Mechanism Section(CDM37-5BD19)........................... 95

6-9. Base Unit Section (BU-5BD19)........................................... 96

7. ELECTRICAL PARTS LIST ......................................... 97

• Abbreviation

EA : Saudi Arabia model

SP : Singapore model

MY : Malaysia model

IA : Indonesian model

TABLE OF CONTEMTS

1. GENERAL ............................................................................ 5

2. DISASSEMBLY

2-1. Front Panel Assembly, Main Board and Key Con Board....... 7

2-2. TC Mechanism Deck ............................................................. 7

2-3. CD Mechanism Deck ............................................................. 8

2-4. BU Bracket Assy .................................................................... 8

2-5. Disc Table .............................................................................. 9

3. MECHANICAL ADJUSTMENTS ........................... 10

4. ELECTRICAL ADJUSTMENTS

DECK Section ............................................................................. 10

TUNER Section........................................................................... 13

CD Section................................................................................... 15

5. DIAGRAMS

5-1. Circuit boards location ........................................................ 17

5-2. IC Pin Functions .................................................................. 18

• IC501 Graphic Control (ASD0204) .................................. 18

• IC701 Master Control (TMP87CS64YF) .......................... 19

5-3. Block Diagrams

• Main Section...................................................................... 22

• Tuner Section

(E, SP, MY, IA Model) ....................................................... 25

• Tuner Section

(EA Model) ........................................................................ 27

• DECK Section ................................................................... 29

• CD Section......................................................................... 31

5-4. Schematic Diagram — Tuner Section —

(E, SP, MY, IA Model) ......................................................... 34

5-5. Printed Wiring Board — Tuner Section —

(E, SP, MY, IA Model) ......................................................... 36

5-6. Schematic Diagram — Tuner Section —

(EA Model) ......................................................................... 38

5-7. Printed Wiring Board — Tuner Section —

(EA Model) ......................................................................... 40

5-8. Schematic Diagram — CD Panel Section — ...................... 41

5-9. Printed Wiring Board — CD Panel Section —.................... 42

5-10. Schematic Diagram — CD Section — .............................. 45

5-11. Printed Wiring Board — CD Section —............................ 47

5-12. Printed Wiring Board — Deck Section — ......................... 49

5-13. Schematic Diagram — Deck Section —............................ 51

5-14. Printed Wiring Board — Main Section — ......................... 57

5-15. Schematic Diagram — Main Section —............................ 59

5-16. Schematic Diagram — Panel Section — ........................... 64

5-17. Printed Wiring Board — Panel Section — ........................ 69

5-18. Printed Wiring Board — Power Section — ....................... 73

5-19. Schematic Diagram — Power Section — .......................... 77

5-20. Schematic Diagram — CD Motor Section — ................... 80

5-21. Printed Wiring Board — CD Motor Section —................. 81

5-22. Schematic Diagram — Key Control Section — ................ 83

5-23. Printed Wiring Board — Key Control Section —.............. 85

5-24. IC Block Diagrams — CD Section — ............................... 86

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SECTION 1

GENERAL This section is extracted from

instruction manual.

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Remove the connectors.

• Main board (six connectors)

• power amplifier board (one connector)

2-2.TC MECHANISM DECK

SECTION 2

DISASSEMBLY

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

2-1. FRONT PANEL ASSEMBLY, MAIN BOARD AND KEY CON BOARD

Screw (BVTP3 X 8)

Screw (BVTP 3x8)

Key con board

Button (eject-L)

Three screws

(BVTP 2.6X8)

Four screws

(BVTP 2.6X8)

TC mechanism deck

Button (eject-R)

Push the eject button.

Remove the two cassette lids

direction of arrow.

CN1301

CN250

CN201

Two earth wire

Two screws

(BVTP 3X8)

Main board

CN701

CN203

CN402

CN401

Power amplifier board

Front panel assembly

Three screws

(BVTP 3X8)

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2-3. CD MECHANISM DECK

2-4. BU BRACKET ASSEMBLY

BU bracket assembly

Yoke bracket

Screw (BVTP 3x8)

Two screws

(BVTP 3x8)

CD mechanism

deck

Two screws

(BVTP 3x8)

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Disc table

Step screw

Screw (BVTP 3x8)

Bracket (BU)

2-5. DISCTABLE

Note:

When the Disc table is installed, adjust the positions

of Roller cam and mark (as shown in the figure,

then set to the groove of disc table.

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SECTION 3

MECHANICAL ADJUSTMENTS SECTION 4

ELECTRICAL ADJUSTMENTS

PRECAUTION

1. Clean the following parts with a denatured alcohol-moistened

swab :

record/playback heads pinch rollers

erase head rubber belts

capstan idlers

2. Demagnetize the record/playback head with a head demagnetizer.

3. Do not use a magnetized screwdriver for the adjustments.

4. The adjustments should be performed with the rated power sup-

ply voltage unless otherwise noted.

Torque Measurement

Torque

FWD

back tension

REV

back tension

FWD tension

REV tension

FF/REW

Torque meter

CQ-102C

CQ-102RC

CQ-201B

CQ-403A

CQ-403R

Meter reading

36 to 61g • cm

(0.5–0.84 oz • inch)

2 to 6g • cm

(0.02–0.08 oz • inch)

36 to 61g • cm

(0.5–0.84 oz • inch)

2 to 6g • cm

(0.02–0.08 oz • inch)

61 to 143g • cm

(0.85–1.99 oz • inch)

100g or more

(3.53 oz or more)

100g or more

(3.53 oz or more)

DECK SECTION 0 dB=0.775V

1. Demagnetize the record/playback head with a head damagnetizer.

2. Do not use a magnetized screwdriver for the adjustments.

3. After the adjustments, apply suitable locking compound to the

parts adjusted.

4. The adjustmetns should be performed with the rated power sup-

ply voltage unless otherwise noted.

5. The adjustments should be performed in the order given in this

service manual. (As a general rule, playback circuit adjustment

should be completed before performing recording circuit adjust-

ment.)

6. The adjustments should be performed for both L-CH and R-ch.

7. Switches and controls should be set as follows unless otherwise

specified.

Tape

P-4-A100

WS-48B

P-4-L300

Signal

10 kHz, –10 dB

3 kHz, 0 dB

315 Hz, 0 dB

Used for

Azimuth Adjustment

Tape Speed Adjustment

Level Adjustment

Record/Playback Head Azimuth Adjustment

DECK A DECK B

Note : Perform this adjustments for both decks.

Procedure :

1. Mode : Playback (FWD)

level meter

main board

CN403

(L-CH)

(R-CH)

test tape

P-4-A100

(10kHz, –10dB)

set

main board

CN403

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