Sony HCD-VP11 Service manual

HCD-VP11

SERVICE MANUAL

Note

CD block, tape dec k block and tuner pack are supplied with the assembled block.

HCD-VP11 is the Amplifier, CD player , Tape Deck and Tuner section in CMT-VP11.

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

CD Section

Tape deck Section

E Model

Model Name Using Similar Mechanism NEW CD Mechanism Type CDM55-K5BD42 Base Unit Name BU-K5BD42 Optical Pick-up Name KSM-213CKP Model Name Using Similar Mechanism HCD-CP11 Tape Transport Mechanism Type TCB-020

SPECIFICATIONS

Amplifier section

The following measured at 230 V AC, 60 Hz

DIN power output (rated): 30 + 30 W

Continuous RMS power output (reference):

The following measured at 220 V AC, 60 Hz

DIN power output (rated): 24 + 24 W

Continuous RMS power output (reference):

Inputs MD IN (phono jacks): Sensitivity 500 mV, impedance

VIDEO IN (phono jacks): Sensitivity 250 mV, impedance

MIC (mini jack): sensitivity 1 mV,

Outputs LINE OUT (phono jacks): Sensitivity 250 mV, impedance

OPTICAL DIGITAL OUT (CD):

VIDEO OUT (phono jack):

PHONES (stereo phone jack):

(6 Ω at 1 kHz, DIN)

35 + 35 W (6 Ω at 1 kHz, 10% THD)

(6 Ω at 1 kHz, DIN)

27 + 27 W (6 Ω at 1 kHz, 10% THD)

47 k

Ω Ω

47 k

impedance 10 k

Ω

1 k

Optical

max. output level 1 Vp-p, unbalanced, Sync negative, load impedance 75

Accepts headphones with an impedance of 8

Ω

or more

VIDEO CD/CD player section

System Compact disc and digital audio and

Laser Semiconductor laser

Laser output MAX 44.6

Wavelength 780 - 790 nm Video color system format

OPTICAL DIGITAL OUT (CD) (Square optical connector jack, rear panel) Wavelength 660 nm Output Level –18 dBm

video system

(λ=780 nm) Emission duration: continuous

* 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.

NTSC, PAL

— Continued on next page —

MICRO Hi-Fi COMPONENT SYSTEM

Tape player section

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

50 - 13,000 Hz (±3 dB), using a Sony TYPE I cassette 50 - 14,000 Hz (±3 dB), using a Sony TYPE II cassette

Tuner section

FM stereo, FM/AM superheterodyne tuner

FM tuner section

Tuning range 87.5 - 108.0 MHz

Antenna FM wire antenna Antenna terminals 75 Ω unbalanced Intermediate frequency 10.7 MHz

AM tuner section

Tuning range Middle Eastern model: 531 - 1,602 kHz

Other models: 530 - 1,710 kHz

Antenna AM loop antenna, external antenna

Intermediate frequency 450 kHz

(50-kHz step)

(with the tuning interval set at 9 kHz)

(with the tuning interval set at 10 kHz) 531 - 1,602 kHz (with the tuning interval set at 9 kHz)

terminal

General

Power requirements 220 - 240 V AC , 50/60 Hz

Power consumption 75 W

Dimensions (w/h/d) Approx. 190 × 252 × 310 mm

Mass Approx. 5.7 kg

Supplied accessories Remote commander (1)

Adjustable with voltage selector

incl. projecting parts and controls

AM loop antenna (1) FM wire antenna (1) Batteries (2) Video connecting cord (1)

Design and specifications are subject to change without notice.

SAFETY CHECK-OUT

After correcting the original service problem, perform the following safety checks before releasing the set to the customer.

1. Check the area of your repair for unsoldered or poorly-soldered connections. Check the entire board surface for solder splashes and bridges.

2. Check the interboard wiring to ensure that no wires are "pinched" or contact high-wattage resistors.

3. Look for unauthorized replacement parts, particularly transistors, that were installed during a previous repair . Point them out to the customer and recommend their replacement.

4. Look for parts which, through functioning, show obvious signs of deterioration. Point them out to the customer and recommend their replacement.

5. Check the B+ voltage to see it is at the values specified.

6. 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.

TABLE OF CONTENTS

SECTION 1

SERVICING NOTES

1. SERVICING NOTES······················································3

2. GENERAL·········································································· 4

3. DISASSEMBLY ································································ 6

4. SERVICE MODE··························································· 10

5. ELECTRICAL ADJUSTMENTS······························· 11

6. DIAGRAMS

6-1. Circuit Boards Locations ··················································· 13 6-2. Block Diagram – MAIN Section – ···································· 14 6-3. Block Diagram

– DISPLAY/POWER SUPPLY Section – ························· 15 6-4. Printed Wiring Board – MAIN Section – ·························· 16 6-5. Schematic Diagram – MAIN Section (1/2) – ···················· 17 6-6. Schematic Diagram – MAIN Section (2/2) – ···················· 18 6-7. Printed Wiring Boards

– LCD/HEADPHONE/LOADING/SPEAKER Section –

····· 19

6-8. Schematic Diagrams

– HEADPHONE/SPEAKER Section – ····························· 19 6-9. Printed Wiring Boards – CONTROL Section –·················20 6-10.Schematic Diagram – CONTROL Section –····················· 21 6-11.Printed Wiring Board – POWER Section – ······················· 22 6-12.Schematic Diagram – POWER Section –··························23 6-13.IC Block Diagrams ···························································· 24 6-14.IC Pin Function Description ·············································· 25

7. EXPLODED VIEWS····················································· 27

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

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 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.

8. ELECTRICAL PARTS LIST·····································32

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 .

CAUTION

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

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

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.

CAUTION :

INTERLOCKS DEFEATED. AVOID EXPOSURE TO BEAM.

ADVARSEL :

SIKKERHEDSAFBRYDERE ER UDE AF FUNKTION. UNDGÅ UDSAETTELSE FOR STRÅLING.

VORSICHT :

ABDECKUNG GEÖFFNET UND SICHERUEITSVERRIEGELUNG ÜBERBRÜCKT. NICHT DEM STRAHL AUSSETZEN.

VARO!:

TIINA NÄKYMÄTTÖMÄLLE LASERSÄTEILYLLE. ÄLÄ KATSO SÄTEESEEN.

VARNING :

OCH SPÄRREN ÄR URKOPPLAD. BETRAKTA EJ STRÅLEN.

ADVERSEL :

SIKKERHEDSLÅS BRYTES. UNNGÅ EKSPONERING FOR STRÅLEN.

VIGYAZAT!:

GÁRVESZÉLY

INVISIBLE LASER RADIATION WHEN OPEN AND

USYNLIG LASERSTRÅLING VED ÅBNING NÅR

UNSICHTBARE LASERSTRAHLUNG, WENN

AVATTAESSA JA SUOJALUKITUS OHITETTAESSA OLET ALT-

OSYNLING LASERSTRÅLING NÄR DENNA DEL ÄR ÖPPNAD

USYNLIG LASERSTRÅLING NÅR DEKSEL ÅPNES OG

A BURKOLAT NYITÁSAKOR LÁTHATATLAN LÉZERSU-

KERÜLJE A BESUGÁRZÁST!

SECTION 2

GENERAL

LOCATION OF CONTROLS

• Front View

ql w; wa

wd wf

wg wh



wk wl eh ej

• Rear View



1 TAPE deck 2 Liquid crystal display 3 TAPE X button

6543

7 8 9

qs qd

qh qj



ef eg

edese;wj

4 TAPE m button 5 TAPE Y button 6 TAPE Z button 7 TAPE x button 8 TAPE M button 9 TAPE REC z button 0 CD SYNC button and indicator qa BAND button qs TUNING + button qd TUNING – button qf TUNING MODE button qg CD EJECT Z button qh CD x button qj CD > button qk CD REPEAT button ql DSG button and indicator w; TUNER button and indicator wa CD button and indicator ws STANDBY ?/1 button and indicator wd MD/VIDEO button and indicator wf TAPE button and indicator wg BASS knob wh TREBLE knob wj PHONES jack wk MIC IN jack wl MIC VOL knob e; CD disc tray ea VOLUME knob es CD u button ed CD . button ef CD PLAY MODE button eg SELECT button eh PREV button ej RETURN button ek NEXT button

4 5

1 ANTENNA terminals 2 SPEAKER terminals 3 VIDEO OUT jack 4 LINE OUT jacks 5 MD IN jacks 6 VIDEO IN jacks 7 CD DIGITAL OUT OPTICAL connector

Step 2: Setting the time

Before you can use the system’s timer functions, set the internal clock.

.> z

mM y

3,5

+ –

2,4

Press TIMER SET.

The hour indication flashes.

AM1200

Press ENTER.

The clock will begin operating.

To reset the system clock

You can reset the system clock even when the system is on or off. To reset the time while the system is on, do the following:

1 Press TIMER SET. 2 Press +/– repeatedly until “SET CLOCK”

appears, then press ENTER.

3 Repeat steps 2 to 5 in “Step 2: Setting the

time”.

Tip

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

This section is extracted from instruction manual.

Press +/– repeatedly to set the hour.

AM1100

Press ENTER.

The minute indication flashes.

AM1100

Press +/– repeatedly to set the minute.

AM1110

SECTION 3

)

DISASSEMBLY

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

3-1. COVER (UPPER)

Cover (upper)

Two screws (case3 TP2)

Four screws (BTP3

Two screws (case3 TP2

3-2. TAPE MECHANISM DECK

Tape mechanism deck

Connector

Two screws

(BTP3

Flat wire (12 core)

Two screw (BTP3 × 8)

3-3. FRONT PANEL SECTION

Connector

Screw (TP3

Flat wire

Connector (CN303)

Two claws

Two screws (BTP3

(There is a claw.)

Screw (KTP3

Front panel section

3-4. CD MECHANISM DECK

Screw (BTP3 × 8)

flat wire (19 core) (CN805)

connecto

3-5. UPPER CHASSIS

Upper chassis

CD mechanism deck

Scre

3-6. TRA Y

Pull the tray

Belt

Rotate the control cam in

the direction of arrow

3-7. CAM

SW lever

Torsion spring

Two screws

Gear

Spacer (55)

Pulley

Gear

Motor board

Roller

Cam

SECTION 4

SERVICE MODE

[Liquid Crystal Display All Lit Check Mode]

Procedure:

1. Set to standby state.

2. Press three buttons of x (TAPE), x (CD), and MD/VIDEO simultaneously.

3. Liquid crystal display are all turned on.

4. T o exit from this mode, press the ?/1 button to turn the power OFF .

[Tape Deck Aging Mode]

This mode can be used for operation check of tape deck section.

Procedure:

1. Set a tape in the tape deck.

2. Set to standby state.

3. Press three buttons of x (TAPE), x (CD), and TAPE simultaneously.

4. The aging is executed in bellow sequence.

5. T o exit from the aging mode, press the ?/1 button to turn the power OFF.

Aging mode sequence:

Start

[CD Aging Mode]

This mode can be used for operation check of CD section.

Procedure:

1. Load a CD disc.

2. Set to standby state.

3. Press three buttons of x (TAPE), x (CD), and TUNER simultaneously.

4. The aging is executed in bellow sequence.

5. T o exit from the aging mode, press the ?/1 button to turn the power OFF.

Aging mode sequence:

Start

Open the disc tray

Close the disc tray

Play the last track

FWD Play

1 minute

REC pause for 3 seconds

FWD REC

3 minutes

Fast forward

REV Play

1 minute

REC pause for 3 seconds

REV REC

3 minutes

Shut off

Rewind

SECTION 5

ELECTRICAL ADJUSTMENTS

DECK SECTION

Note: Confirm each contents of this section first of all. If the results are

not satisfied, do the adjustment.

0 dB=0.775 V

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

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

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

4. The adjustments should be performed with the rated power supply 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 adjustment.)

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

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

• Test T ape

Tape Signal Used for

P-4-A100 10 kHz, –10 dB Azimuth Adjustment

WS-48B 3 kHz, 0 dB Tape Speed Check

P-4-L300 315 Hz, 0 dB Level Adjustment

Record/Playback Head Azimuth Adjustment

Procedure:

1. Mode: Playback

3. Mode: Playback

MAIN board test tape P-4-A100 (10 kHz, –10 dB)

L-CH

MAIN board CN301 set

R-CH

in phase 45°90°135°180

LINE OUT jack (PJ301)

L-CH

R-CH

waveform of oscilloscope

good

oscilloscop

wrong

4. Repeat step 1 to 3 in playback (REV) mode.

5. After the adjustments, apply suitable locking compound to the pats adjusted.

Adjustment Location:

reverse

forward

test tape P-4-A100 (10 kHz, –10 dB)

MAIN board LINE OUT jack (PJ301) L-CH, R-CH

set

level mete

+ –

2. Turn the adjustment screw and c heck output peaks. If the peaks do not match for L-CH and R-CH, turn the adjustment screw so that outputs match within 1dB of peak.

Output level

within 1dB

L-CH peak

R-CH peak

within 1dB

Screw position

L-CH peak

Screw position

R-CH peak

Tape Speed Adjustment

Procedure :

Mode : Playback

test tape WS-48B (3kHz, 0dB)

set

LINE OUT

digital frequency counter

Ω

+ –

Adjust the tape speed adjustment control inside motor, so that the frequency counter reading becomes 3,000 ±90 Hz.

Sample Value of Wow and flutter

W.RMS (JIS) less than 0.3% (test tape : WS-48B)

Playback Level Adjustment

Record Level Adjustment

Procedure:

Mode: FWD playback

test tape

P-4-L300

(3kHz, 0dB)

frequency counte

set

LINE OUT

Adjust R V101 (L-CH) and R V201 (R-CH), so that adjustment within the following adjustment level.

Adjustment level:

LINE OUT level: –7.7 ± 0.5 dB (301.5 to 338.5 mV) Level difference between the channels: within ± 0.5 dB Confirm that the LINE OUT level does not change even though play and stop are repeated.

Record Bias Adjustment

Procedure:

1. Record mode.

LINE IN

1) 315 Hz

2) 10 kHz

AF OSC

attenuator

600

Ω

} 50 mV (–23.8 dB)

blank tap CS-123

set

Procedure:

1. Record mode.

LINE IN 315Hz 50 mV (–23.8 dB)

AF OSC

attenuator

600

Ω

set

blank tap CS-123

2. Playback mode.

recorded

position

set

LINE OUT

level mete

3. Confirm playback the signal recorded in step 1 become adjustment level as follows.

4. If these levels do not adjustment level, adjust the RV103 (LCH) and RV203 (R-CH), on the MAIN board to repeat steps 1 to 3.

Adjustment level:

LINE OUT level: –23.8 dB ± 0.5 dB (47.2 to 53.0 mV)

Adjustment Location: TC board

2. Playback mode.

recorded

position

set

LINE OUT

level mete

3. Confirm playback the signal recorded in step 1 become adjustment level as follows.

4. If these levels do not adjustment level, adjust the RV102 (LCH) and RV202 (R-CH), to repeat steps 1 to 3.

Adjustment level:

The playback outpout of 10 kHz level difference adjust 315 Hz reference should be 0 dB ± 0.5 dB.

Play back level

RV201 RV101

RV203 RV103

RV102 RV202

Record level

Record bias

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