Sony HCD-RB5 Service manual

HCD-RB5

SERVICE MANUAL

Ver 1.1 2001. 12

• This set is the Amplifier and CD player section in CMT-RB5.

SPECIFICATIONS

Main Unit

Amplifier section

For the U.S. model

AUDIO POWER SPECIFICATIONS

POWER OUTPUT AND TOTAL HARMONIC DISTORTION:

With 4-ohm loads, both channels driven, from 120 – 10,000 Hz; rated 15 watts per channel minimum RMS power, with no more than 10% total harmonic distortion from 250 milliwatts to rated output.

US, Canadian and Mexican models:

Continuous RMS power output (reference):

European and Australian models:

DIN power output (Rated):12 + 12 watts

Continuous RMS power output (Reference):

Music power output (Reference):

Other models:

The following measured at 220 V AC, 50/60 Hz

DIN power output (rated): 10 + 10 watts

Continuous RMS power output (reference):

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

DIN power output (rated): 12 + 12 watts

Continuous RMS power output (reference):

15 + 15 watts (4 ohms at 1 kHz, 10% THD)

(4 ohms at 1 kHz, DIN)

15 + 15 watts (4 ohms at 1 kHz,

10% THD)

28 + 28 watts

(4 ohms at 1 kHz, DIN)

12 + 12 watts (4 ohms at 1 kHz, 10% THD)

(4 ohms at 1 kHz, DIN)

15 + 15 watts (4 ohms at 1 kHz, 10% THD)

Inputs MD/VIDEO (AUDIO) IN (phono jacks):

Outputs MD/VIDEO (AUDIO) OUT (phono jack):

PHONES (stereo minijack):

SPEAKER: accepts impedance of 4 to

CD DIGITAL OUT OPTICAL:

CD player section

System Compact disc and digital audio Laser Semiconductor laser (λ=780 nm)

Laser output MAX. 44.6 µW*

Frequency response 2 Hz – 20 kHz

Tuner section

FM stereo, FM/AM superheterodyne tuner

FM tuner section

Tuning range US, Canadian model: 87.5 – 108.0 MHz

Other models: 87.5 – 108.0 MHz

Antenna FM lead antenna Antenna terminals 75 ohms unbalanced Intermediate frequency 10.7 MHz

voltage 500/250 mV, impedance 47 kilohms

voltage 250 mV, impedance 1 kilohm

accepts headphones of 8 ohms or more.

16 ohms.

Optical

system

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.

(100 kHz step)

(50 kHz step)

US Model

Canadian Model

AEP Model

UK Model

E Model

Australian Model

Chinese Model

Model Name Using Similar Mechanism NEW

CD Mechanism Type CDM55C-K6BD38

Base Unit Name BU-K6BD38

Optical Pick-up Name KSM-213DCP

AM tuner section

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

European model: 531 – 1,602 kHz

Other models: 531 – 1,602 kHz

Antenna AM loop antenna

Intermediate frequency 450 kHz

General

Power requirements US, Canadian model: 120 V AC, 60 Hz European model: 230 V AC, 50/60 Hz Australian model: 220 – 240 V AC, 50/60 Hz Korea, Chinese model: 220 V AC, 50/60 Hz Mexican model: 120 V AC, 60 Hz Other models: 110 – 120 V or 220 – 240 V AC,

Power consumption US, Canadian and Mexican models:

Other models: 45 watts Dimensions (w/h/d) Approx. 180 × 130 × 315 mm

Mass Approx. 4.0 kg Supplied accessories Remote (1)

Design and specifications are subject to change without notice.

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

External antenna terminals

50/60 Hz Adjustable with voltage selector

50 watts

incl. projecting parts and controls

Size AA (R6) batteries (2) AM loop antenna (1) FM lead antenna (1) Speaker cords (2)

9-929-526-12

2001L1600-1

MICRO Hi-Fi COMPONENT SYSTEM

Sony Corporation

Home Audio Company

Published by Sony Engineering Corporation

Ver 1.1 2001.12

TABLE OF CONTENTS

1. GENERAL ·········································································· 4

2. DISASSEMBLY ································································ 6

3. SERVICE MODE ······························································ 9

4. ELECTRICAL ADJUSTMENTS ······························· 10

5. DIAGRAMS

5-1. Waveforms··································································· 11 5-2. Circuit Boards Location ·············································· 11 5-3. PRINTED WIRING BOARD –BD SECTION– ·······12 5-4. SCHEMATIC DIAGRAM –BD SECTION–············ 13 5-5. PRINTED WIRING BOARDS

–MAIN SECTION– ··················································· 14

5-6. SCHEMATIC DIAGRAM

–MAIN SECTION(1/2)– ··········································· 15

5-7. SCHEMATIC DIAGRAM

–MAIN SECTION(2/2)– ··········································· 16

5-8. PRINTED WIRING BOARDS

–POWER SECTION– ················································ 17

5-9. PRINTED WIRING BOARD

–PANEL SECTION– ················································· 18

5-10. SCHEMATIC DIAGRAM

–PANEL SECTION– ················································· 19

5-11. SCHEMATIC DIAGRAM

–LOADING SECTION–············································ 20

5-12. PRINTED WIRING BOARDS

–LOADING SECTION–············································ 20 5-13. IC Pin Function ·························································· 20 5-14. IC Block Diagrams····················································· 22

6. EXPLODED VIEWS ................................................... 23

7. ELECTRICAL PARTS LIST ................................... 28

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 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.

Unleaded solder

Boards requiring use of unleaded solder are printed with the leadfree mark (LF) indicating the solder contains no lead. (Caution: Some printed circuit boards may not come printed with the lead free mark due to their particular size.)

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.

: LEAD FREE MARK

Unleaded solder has the following characteristics.

• Unleaded solder melts at a temperature about 40°C higher than ordinary solder. Ordinary soldering irons can be used but the iron tip has to be applied to the solder joint for a slightly longer time. Soldering irons using a temperature regulator should be set to about 350°C. Caution: The printed pattern (copper foil) may peel away if the heated tip is applied for too long, so be careful!

• Strong viscosity Unleaded solder is more viscous (sticky , less prone to flow) than ordinary solder so use caution not to let solder bridges occur such as on IC pins, etc.

• Usable with ordinary solder It is best to use only unleaded solder but unleaded solder may also be added to ordinary solder.

CAUTION

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

SAFETY CHECK-OUT

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

LEAKAGE

The A C leakag e from any exposed metal part to earth g round 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. F ollow the manufactur ers’ instructions to use these instruments.

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

MODEL IDENTIFICATION – Back Panel –

Power Voltage Indication

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

To Exposed Metal

Parts on Set

0.15 µF

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

1.5 kΩ

Earth Ground

Voltmeter (0.75 V)

Model

US, CND, MX models

AEP, UK, AED, EE models

AUS, CIS, CH, models

AC: 220 – 240V 50/60 Hz 45 W

E, AR, HK, MY,

SP, TW models

• Abbreviation CND : Canadian model. AUS : Australian model. SP : Singapore model. MY : Malaysia model. AR : Argentine model. AED : North European model. MX : Mexican model. KR : Korean model. EE : East European model. HK : Hong Kong model. TW : Taiwan model. CH : Chinese model.

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.

Power Voltage

Incdication

AC: 120 V 60 Hz 50 W

AC: 230 V 50 Hz 45 W

AC: 110 – 120/

220 – 240 V 50/60 Hz 45 W

AC: 220 V – 60 Hz 45 W

ATTENTION AU COMPOSANT AYANT RAPPORT

LES COMPOSANTS IDENTIFÉS PAR 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 PIÈSES SONY DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU DANS LES SUPPÉMENTS PUBLIÉS PAR SONY.

À LA SÉCURITÉ!

LOCATION OF CONTROLS – Front Panel –

SECTION 1

GENERAL

3q;495

1 ?/1 button 2 DISPLAY button 3 TUNER/BAND button 4 7 button 5 FUNCTION button 6 Z button 7 VOLUME knob 8 J L button 9 s button q; l j button qa PHONE jack qs t indicator

Step 2: Setting the time

You must set the time beforehand to use the timer functions. The clock is on a 24-hour system for the European model, and a 12-hour system for other models. The 24-hour system is used for illustration purposes.

DISPLAY

?/1

1 4,6

NX x

This section is extracted from instruction manual.

If you made a mistake

Press m/M repeatedly until the incorrect item flashes, then set it again.

To change the preset time

You can change the preset time while the system is off.

1 Press DISPLAY to display the clock. 2 Press CLOCK/TIMER SET. 3 Repeat steps 3 to 6 of “Setting the time.”

Tips

• The upper dot of the colon flashes for the first 30 seconds, and the lower dot flashes for the last 30 seconds of each minute.

• Each time you press DISPLAY while the system is off, the display switches between no display and the clock display.

Turn on the system.

Press CLOCK/TIMER SET.

The clock appears and the hour indication flashes.

0:00

Press ./> to set the hour.

Press ENTER or M.

The minute indication flashes.

11:00

Press ./> to set the minute.

3,5

Press ENTER.

The clock starts.

SECTION 2

)

DISASSEMBLY

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

2-1. CASE (TOP)

two case screws

four screws

plate top

case (left)

one screw (BVTP3

10)

case (top)

one screw (BVTP3

10)

back panel

eight screws (BVTP3

one screw (BVTP3

10)

2-2. FRONT PANEL ASSY

connector (CN202)

one screw (BVTP3

case (right)

two case screws

lug

two screws (BVTP3

front panel assy

wire (flat type)(23 core) (CN441)

2-3. CD MECHANISM DECK (CDM55C-K6BD38)

CD mechanism deck (CDM55C-K6BD38)

screw (BVTP3 × 8)

wire (flat type)

(19 core)(CN401)

2-4. BASE UNIT (BU-K6BD38)

base unit (BU-K6BD38)

connector (CN1)

floating screw (PTPWHM2.6)

2-5. LOADING BOARD

)

Pull the tray pushing B.

belt (CDM55)

Rotate the gear(B) in the direction of arrow

2-6. CAM (CDM55C-K6BD38)

torsion spring

lever (SW)

two screws (BTP2.6

gear (B)

spacer (55)

LOADING board

pulley (LDG)

gear (A)

roller

cam (CDM55

SECTION 3

SERVICE MODE

[Panel Test Mode]

Procedure:

1. Set to standby state.

2. Press three buttons of s , ?/1 , and 7 simultaneously.

3. Liquid crystal display and LED are all turned on.

4. Pless Z to enter the version display mode.

5. Press 7 to enter the KEY, VOL, check mode. ( l j and J L must be pressed for several seconds.)

6. To exit from this mode, press the buttons in the same way as step 2.

[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 s , DISPLAY , and 7 simultaneously .

4. The aging is executed in bellow sequence.

5. To exit from the aging mode, press the ?/1 b utton to turn the power OFF.

[Cold Reset]

Clears all the memories and starts up the machine again.

Procedure:

1. Set to standby state.

2. Press three buttons of s , ?/1 , and FUNCTION simultaneously.

[Hot Reset]

Starts up the machine again holding the memory data.

Procedure:

1. Set to standby state.

2. Press three buttons of s , ?/1 , and FUNCTION simultaneously.

TP(TEO) TP(VC)

BD board

Oscilloscope

)

SECTION 4

ELECTRICAL ADJUSTMENTS

CD SECTION

Note :

1. CD Block is basically designed to operate without adjustment. Therefore, check each item in order given.

2. Use YEDS-18 disc (3-702-101-01) unless otherwise indicated.

3. Use an oscilloscope with more than 10MΩ impedance.

4. Clean the object lens by an applicator with neutral detergent when the signal level is low than specified value with the following checks.

S-Curve Check

Oscilloscope

BD board

TP(FEO) TP(VC)

Procedure :

1. Connect oscilloscope to TP (FEO).

2. Connect between TP (FEI) and TP (VC) by lead wire.

3. Connect between TP (AGCCON) and TP (DGND) by lead wire.

4. Turn Power switch on.

5. Load a disc (YEDS-18) and actuate the focus search. (In consequence of open and close the disc tray, actuate the focus search)

6. Confirm that the oscilloscope waveform (S-curve) is symmetrical between A and B. And confirm peak to peak level within 4 ±1 Vp-p.

Note : Clear RF signal waveform means that the shape “ ◊ ” can be clearly

distinguished at the center of the waveform.

RF signal waveform

VOLT/DIV : 200mV TIME/DIV : 500ns

Level : 1.45 ± 0.3Vp-p

E-F Balance (1 Track jump) Check

Procedure :

1. Connect oscilloscope to TP (TEO) and TP (VC).

2. Turned Power switch on.

3. Load a disc (YEDS-18) and playback the number five track.

4. Press the X button. (Becomes the 1 track jump mode.)

5. Confirm that the level B and A (DC v oltage) on the oscilloscope waveform.

1 track jump waveform

Center of waveform

S-curve waveform

Symmetry

Wthin 4 ±1Vp-p

7. After check, remove the lead wire connected in step 2 and 3.

Note : • Try to measure several times to make sure than the ratio

of A : B or B : A is more than 10 : 7.

• Take sweep time as long as possible and light up the brightness to obtain best waveform.

RF Level Check

Oscilloscop

BD board

TP(RF) TP(VC)

Procedure :

1. Connect oscilloscope to TP (RF).

2. Connect between TP (AGCCON) and TP (DGND) by lead wire.

3. Turned Power switch on.

4. Load a disc (YEDS-18) and playback.

5. Confirm that oscilloscope waveform is clear and check RF signal level is correct or not.

6. After check, remove the lead wire connected in step 2.

0 V

Level=1.3 ±0.6 Vp-p

Specified level: –– × 100 = less than ± 22 %

A B

Symmetry

A (DC voltage

6. After check, remove the lead wire connected in step 1.

Adjustment Location:

[BD BOARD] (Conductor Side)

(XPCK)

IC101

2021

(TEO)

(FEO)

(VC)

(AGCCON)

IC103

(FEI)

(RF)

(DGND)

SECTION 5

DIAGRAMS

HCD-RB5

NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS

Note on Printed Wiring Board:

• X : parts extracted from the component side.

•

• b : Pattern from the side which enables seeing.

Caution: Pattern face side: Parts on the pattern face side seen from (Side B) the pattern face are indicated. Parts face side: Parts on the par ts face side seen from (Side A) the parts face are indicated.

• Indication of transisitor.

: internal component.

These are omitted.

Note on Schematic Diagram:

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

• All resistors are in Ω and specified.

•

• 2 : nonflammable resistor.

• 5 : fusible resistor.

• C : panel designation.

• U : B+ Line.

• V : B– Line.

• H : adjustment for repair.

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

• Waveforms are taken with a oscilloscope.

• Circled numbers refer to waveforms.

• Signal path.

• Abbreviation

: internal component.

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 : TUNER (FM/AM) J : CD PLAY (ANALOG OUT) c : CD PLAY (DIGITAL OUT)

CND : Canadian model. AUS : Australian model. SP : Singapore model. MY : Malaysia model. AR : Argentine model. AED : North European model. MX : Mexican model. KR : Korean model. EE : East European model. HK : Hong Kong model. TW : Taiwan model. CH : Chinese model.

W or less unless otherwise

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

5-1. Wavefoarms

– BD BOARD – – MAIN BOARD –

IC101 yj

CD PLAY MODE

16.9344MHz

IC101 ta

CD PLAY MODE

400nsec/div

CD PLAY MODE

6.4Vp-p

CD PLAY MODE

1.2Vp-p

IC101 ra

approx 200mVp-p

IC101 el

approx 170mVp-p

IC601 qa

STOP MODE

32.768kHz

IC601 qd

STOP MODE

16MHz

5-2. CIRCUIT BOARDS LOCATION

TUNER (FM/AM) UNIT

LED board

PANEL board

3.0Vp-p

3.4Vp-p

BACK PANEL board

H.P. board

MAIN board

BD board

LOADING board

1111

+ 25 hidden pages