Sony HCDRG-270 Service manual

HCD-GX355/GX555/

RG270/RG475/RG575

SERVICE MANUAL

Ver. 1.4 2005.10

• HCD-GX355 is the amplifier, CD player, tape deck and tuner section in MHC-GX355.

• HCD-GX555 is the amplifier, CD player, tape deck and tuner section in MHC-GX555.

• HCD-RG270 is the amplifier, CD player, tape deck and tuner section in MHC-RG270.

• HCD-RG475 is the amplifier, CD player, tape deck and tuner section in MHC-RG475S.

• HCD-RG575 is the amplifier, CD player, tape deck and tuner section in MHC-RG575S.

Model Name Using Similar Mechanism NEW

CD Mechanism Type CDM74KF-K6BD83S (US, Canadian, AEP, UK, East European, CD Russian, E2, E51 models)/CDM74KFS-F1BD84 (Mexican model) Section BU-F1BD81C (Except Mexican model) or

Base Unit Name BU-K6BD83S-WOD (US, Canadian, AEP, UK, East European,

Optical Pick-up Block Name KSM-215DCP or KSM-213DCP TAPE Model Name Using Similar Mechanism NEW Section Tape Transport Mechanism Type CWM43FF13

• Abbreviation

E2 : 120V AC Area in E model E51: Chilean and Peruvian models

Photo: HCD-RG575

CDM74KFS-F1BD81C (Except Mexican model) or

Russian, E2, E51 models)/BU-F1BD84 (Mexican model)

US Model

Canadian Model

HCD-GX355/GX555

AEP Model

UK Model

Australian Model

HCD-RG270/RG475

E Model

HCD-RG270/RG475/RG575

Amplifier section AUDIO POWER SPECIFICATIONS

(HCD-GX555/GX355 USA model only)

HCD-GX555 POWER OUTPUT AND TOTAL HARMONIC

DISTORTION:

With 6 ohm loads, both channels driven, from 120 – 10,000 Hz: rated 145 watts per channel minimum RMS power, with no more than 10% total harmonic distortion fro m 250 mill iwatts to rated output.

HCD-GX355 POWER OUTPUT AND TOTAL HARMONIC

DISTORTION:

With 6 ohm loads, both channels driven, from 120 – 10,000 Hz: rated 150 watts per channel minimum RMS power, with no more than 10% total harmonic distortion fro m 250 mill iwatts to rated output.

9-879-533-05

Sony Corporation

Personal Audio Group Published by Sony Engineering Corporation

SPECIFICATIONS

North American model: HCD-GX555

Front speaker Continuous RMS power output (reference):

145 + 145 watts (6 ohms at 1 kHz, 10% THD)

Total harmonic distortion less than 0.07% (6 ohms at

1kHz, 80 W) Sub woofer Continuous RMS power output (reference):

170 watts (6 ohms at

80 Hz, 10% THD) Total harmonic distortion less than 0.07% (6 ohms at

80 Hz, 90 W)

HCD-GX355

Continuous RMS power output (reference):

150 + 150 watts (6 ohms at

1 kHz, 10% THD) Total harmonic distortion less than 0.07% (6 ohms at

1kHz, 80 W)

COMPACT DISC DECK RECEIVER

European and Russian models: HCD-RG475

Front speaker DIN power output (rated): 110 + 110 watts (6 ohms at

1 kHz, DIN)

Continuous RMS power output (reference):

140 + 140 watts (6 ohms at 1 kHz, 10% THD)

Music power output (reference):

280 + 280 watts (6 ohms at

1 kHz, 10% THD) Sub woofer DIN power output (rated): 130 watts (6 ohms at

80 Hz, DIN) Continuous RMS power output (reference):

160 watts (6 ohms at

80 Hz, 10% THD) Music power output (reference):

320 watts (6 ohms at

80 Hz, 10% THD)

– Continued on next page –

HCD-GX355/GX555/RG270/RG475/RG575

HCD-RG270

DIN power output (rated): 80 + 80 watts (6 ohms at

Continuous RMS power output (reference):

Music power output (reference):

1kHz, DIN)

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

200 + 200 watts (6 ohms at 1kHz,

10% THD)

Other models: HCD-RG575

The following measured at AC 120, 127, 220, 240 V 50/60 Hz Front speaker DIN power output (rated): 100 + 100 watts (6 ohms at

Continuous RMS power output (reference):

Sub woofer DIN power output (rated): 120 watts (6 ohms at

Continuous RMS power output (reference):

1kHz, DIN)

125 + 125 watts (6 ohms at 1kHz, 10% THD)

80 Hz, DIN)

150 watts (6 ohms at 80 Hz, 10% THD)

HCD-RG475

Front speaker The following measured at AC 120, 127, 220, 240 V 50/60 Hz DIN power output (rated): 100 + 100 watts (6 ohms at

Continuous RMS power output (reference):

Sub woofer DIN power output (rated): 120 watts (6 ohms at

Continuous RMS power output (reference):

1kHz, DIN)

120 + 120 watts (6 ohms at 1kHz, 10% THD)

80 Hz, DIN)

150 watts (6 ohms at 80 Hz, 10% THD)

HCD-RG270

The following measured at AC 120, 127, 220, 240 V 50/60 Hz DIN power output (rated): 100 + 100 watts (6 ohms at

Continuous RMS power output (reference):

Inputs AUDIO IN (stereo mini jack):

MIC (phone jack) (Latin American model onl y) :

Outputs PHONES (stereo mini jack):

VIDEO OUT (phono jack) (Mexican model only):

SPEAKER: accepts impedance of 6 to

SUBWOOFER OUT (HCD-GX555/RG575/ RG475 only): accepts impedance of 6 to

1kHz, DIN)

125 + 125 watts (6 ohms at 1kHz, 10% THD)

voltage 250 mV, impedance 47 kilohms

sensitivity 1 mV, impedance 10 kilohms

accepts headphones of 8ohms or more

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

16 ohms

CD player section

System Compact disc and digit al

Laser Diode Properties Emission duration:

*This output is the value measurement at a dist ance of

200mm from the objective lens surf ace on the Optical Pick-up Block with 7mm aperture.

Frequency response 2 Hz – 20 kHz (±0.5 dB) Signal-to-noise ratio More than 90 dB Dynamic range More than 90

audio system

continuous Laser Output*: Less than 44.6µW

dB

Tape deck section

Recording system 4-track 2-channel, stereo Frequency response 50 – 13,000 Hz (±3 dB),

using Sony TYPE I cassettes

Tuner section

FM stereo, FM/AM superheterodyne tuner

FM tuner section

Tuning range North American 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

AM tuner section

Tuning range Pan-American models: 530 – 1,710 kHz

European, Russian and Saudi Arabian models:

Other models: 530 – 1,710 kHz

Antenna AM loop antenna Intermediate frequency 450 kHz

(100 kHz step)

(50 kHz step)

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

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

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

General

Power requirements North American model: 120 V AC, 60 Hz European and Russian models:

Australian model: 230 – 240 V AC, 50/60 Hz Argentine model: 220 V AC, 50/60 Hz Mexican model: 127 V AC, 60 Hz Saudi Arabian model: 120 – 127, 220 or

Other models: 120 V, 220 V or

Power consumption USA model: HCD-GX555: 285 watts HCD-GX355: 210 watts Canadian model: HCD-GX555: 380 VA HCD-GX355: 290 VA European and Russian models: HCD-RG475: 300 watts

HCD-RG270: 190 watts

Other models: HCD-RG575: 300 watts HCD-RG475: 300 watts

HCD-RG270: 210 watts

Dimensions (w/h/d) (excl. speakers)

Mass (excl. speakers) North American models: HCD-GX555: Approx. 10.5 kg HCD-GX355: Approx. 10.0 kg Canadian model: HCD-GX555: Approx. 10.5 kg HCD-GX355: Approx. 10.0 kg European and Russian models: HCD-RG475: Approx. 10.5 kg HCD-RG270: Approx. 8.7 kg Other models: HCD-RG575: Approx. 10.5 kg HCD-RG475: Approx. 10.5 kg HCD-RG270: Approx. 10.0 kg

Design and specifications are subject to change without notice.

230 V AC, 50/60 Hz

230 – 240 V AC, 50/60 Hz Adjustable with voltag e selector

0.25 watts (at the Power Saving Mode)

Approx. 280 × 325 430 mm

2

HCD-GX355/GX555/RG270/RG475/RG575

r

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 AC leakage from any exposed metal part to earth ground 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. Follow the manuf acturers’ instructions to use these instruments.

2. A battery-operated A C 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 low-voltage scale. The Simpson 250 and Sanwa SH-63Trd are examples 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 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.

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. This marking is located on the rear exterior.

AC

0.15 µF

1.5 k

Ω

Earth Ground

voltmete (0.75 V)

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

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

LES COMPOSANTS IDENTIFIÉS P AR UNE MARQ UE 0 SUR LES DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT. NE REMPLACER CES COM- POSANTS QUE PAR DES PIÈCES SONY DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU DANS LES SUPPLÉMENTS PUBLIÉS PAR SONY.

À LA SÉCURITÉ!

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)

: 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 viscou-s (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.

3

HCD-GX355/GX555/RG270/RG475/RG575

Ver. 1.1

SERVICING NOTES

Ver. 1.1

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.

LASER DIODE AND FOCUS SEARCH OPERATION CHECK

Carry out the “S curve check” in “CD section adjustment” and check that the S curve waveforms is output three times.

• MODEL IDENTIFICATION – Back Panel –

Model number labe

Label indication Model

2-348-857-01 CA GX355: CND 2-560-970-01 U GX555: US 2-560-971-01 CA GX555: CND 2-560-972-01 CED RG475: AEP, UK, EE, RU 2-560-974-01 E3 RG475: E3 2-560-975-01 AU RG475: A US 2-560-979-01 U GX355: US 2-560-980-01 CED RG270: AEP, UK, EE, RU 2-560-982-01 E3 RG270: E3 2-560-982-11 E2 RG270: E2 2-560-983-01 EA3 EA 2-560-984-01 SP2 RG475: SP 2-560-985-01 AU RG270: A US 2-560-986-01 E51 RG270: E51 2-560-987-01 MX4 2-560-987-11 MX4 2-560-988-01 AR RG270: AR 2-560-995-01 SP2 RG575: SP 2-580-005-01 E2 2-580-005-11 E3 2-580-007-01 E51 RG575: E51 2-580-008-01 MX4 2-580-008-11 MX4 2-580-009-01 AR RG575: AR

RG270: MX

RG575: E2

RG575: MX

• Abbreviation

AR : Argentine model AUS: Australian model CND : Canadian model E2 : 120V AC Area in E model E3 : 240V AC Area in E model E51 : Chilean and Peruvian models EA : Saudi Arabia model EE : East European model MX : Mexican model RU : Russian model SP : Singapore model

5

HCD-GX355/GX555/RG270/RG475/RG575

123456789q

SECTION 2

GENERAL

• Location of Controls

Main unit

ALPHABETICAL ORDER

A – O P – Z

ALBUM +/– qs AUDIO IN wl AUDIO IN jack wf CD es CD SYNC wj Deck A wg Deck B qk DISC 1 – 3 qa DISC SKIP/EX-CHANGE qd

Disc tray 0 DISPLAY 3 Display window 5 ECHO LEVEL EFFECT ON/OFF 4 ENTER 4 EQ BAND qs GROOVE 4 ILLUMINATION 2 MIC jack MIC LEVEL MULTIPLEX Operation Dial

(– EQ +/l L/ – TUNING +) qj

2)

wd

2)

ws

1)

6

wa

P FILE 4 PHONES jack w; PLAY MODE 8 Power illuminator qg PRESET EQ 4 REC PAUSE/START wl Remote sensor 7 SUBWOOFER ON/OFF

SURROUND 4 TA P E A/B e; TUNER/BAND ea TUNING MODE 8 VOLUME control ql

es ea e; wl wk wj wh wg

wf

This section is extracted from instruction manual.

NS

3)

9

BUTTON DESCRIPTIO

?/1 (power) 1

X (pause) qs x (stop) qs M (fast forward) qs N (play) qs m (rewind) qs Z (eject) qf PUSH Z (deck B) (eject) qh Z PUSH (deck A) (eject) wh

1)

Mexican model only

2)

Latin American model only (Mexican model comes with 2microphone jacks)

3)

HCD-GX555/RG575/ RG475 only

;

L

l

j

A

H

S

s

B

qa qs qd qf qg qh qj qk ql w;

6

wd

ws

wa

Remote control

HCD-GX355/GX555/RG270/RG475/RG575

ALPHABETICAL ORDER

A – E

ALBUM + qa ALBUM – qd CD qk CLEAR qg CLOCK/TIMER SELECT 2

CLOCK/TIMER SET 3 DISC SKIP q; DISPLAY wa ENTER 9 EQ qf

F – Z

FM MODE 4 FUNCTION 6

PLAY MODE w; REPEAT 4 SLEEP ws TAPE qj TUNER BAND 5 TUNER MEMORY ql TUNING MODE w; VOLUME +/– qs

ws wa w; ql qk qj

qh

BUTTON DESCRIPT

?/1 (power) 1 m/M (rewind/fast forward)

7

N (play) 8 X (pause) 8 x (stop) 8

+/– (tuning) qh ./> (go back/go forward)

qh

IONS

1 2 3 4 5 6

7

qg qf

qd

8

9 q;

qa qs

7

HCD-GX355/GX555/RG270/RG475/RG575

Ver. 1.1

SECTION 3

DISASSEMBLY

• This set can be disassembled in the order shown below.

3-1. DISASSEMBLY FLOW

SET

3-2. CASE (TOP)

(Page 9)

3-3. DOOR (CD)

(Page 9)

3-4. FRONT PANEL SECTION

(Page 10)

3-6. CD MECHANISM DECK

(CDM74KFS-F1BD81C (EXCEPT MX MODEL)/ CDM74KFS-F1BD84 (MX MODEL)) (Page 11)

3-7. BACK PANEL SECTION

(Page 11)

3-8. MAIN BOARD

(Page 12)

3-5. MECHANICAL DECK

3-9. BD BOARD/

CD BOARD (Page 12)

3-10. DRIVER BOARD,

(CWM43FF13) (Page 10)

3-11. OPTICAL PICK-UP BLOCK

SW BOARD (Page 13)

(KSM-215DCP) (Page 13)

3-12. SENSOR BOARD

(Page 14)

3-13. MOTOR (TB) BOARD

(Page 14)

3-14. MOTOR (LD) BOARD

(Page 15)

8

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

3-2. CASE (TOP)

0

5

6

case (side-R)

two screws (B3)

HCD-GX355/GX555/RG270/RG475/RG575

case (top)

7

two screws

8

4

three screws (case 3 TP2)

3-3. DOOR (CD)

9

3

two claws

9

3

case (side-R)

8

1

three screws (case 3 TP2)

2

two screws (B3)

4

door (CD)

–BOTTOM VIEW– CD mechanism deck

1

Turn the pulley in the direction of the arrow.

Front panel side

2

Pull-out the disc tray.

9

HCD-GX355/GX555/RG270/RG475/RG575

)

3-4. FRONT PANEL SECTION

•

Abbreviation AR : Argentina model E2 : 120V AC Area in E model E51 : Chilean and Peruvian models MX : Mexican model

1

connector (CN061)

(E2, E51, AR, MX)

5

connector (CN066)

8

screw (B3)

9

front panel section

6

four screws (B3)

3-5. MECHANICAL DECK (CWM43FF13)

•

Abbreviation MX : Mexican model

(MX)

7

cover (TCM)

7

screw (B3)

2

3

coating clip

connector (CN203)

4

3

connector (CN201)

(except MX)

2

harness

connector (CN065)

1

screw (+BVTP 2.6 (+BVTP 2.6 × 10) (MX)

5

two screws (+BVTP 2.6 (+BVTP 2.6

4

two screws (+BVTP 2.6

×

8) (except MX)

×

8) (except MX)

×

10) (MX)

×

8)

10

8

mechanical deck (CWM43FF13)

6

screw (+BVTP 2.6 × 8) (except MX (+BVTP 2.6 × 10) (MX)

HCD-GX355/GX555/RG270/RG475/RG575

3-6. CD MECHANISM DECK

(CDM74KFS-F1BD81C (EXCEPT MX MODEL)/CDM74KFS-F1BD84 (MX MODEL))

7

CD mechanism deck

(MX)

6

connector (CN1004)

2

(CDM74KFS-F1BD81C (except MX)/CDM74KFS-F1BD84 (MX))

1

three screws (B3)

5

wire (flat type) (13 core) (CN331)

Ver. 1.1

(MX)

3

wire (flat type) (13 core) (CN701)

3-7. BACK PANEL SECTION

2

connector (CN903)

1

connector (CN906)

4

wire (flat type) (27 core) (CN201) (Except MX) wire (flat type) (31 core) (CN201) (MX)

3

connector (CN901)

•

Abbreviation MX : Mexican model

8

back panel section

4

wire (flat type) (15 core) (CN381)

5

connector (CN041)

6

two screws (B3)

7

two screws (B3)

11

HCD-GX355/GX555/RG270/RG475/RG575

)

3-8. MAIN BOARD

5

MAIN board

4

connector (CN441)

MAIN

board

1

connector (CN907)

3-9. BD BOARD/CD BOARD

•

Abbreviation MX : Mexican model

4

Remove soldering from the four points.

2

connector (CN905)

3

gap tube

3

two screws (B3)

2

screw

(+BVTP 2.6)

5

BD

board (MX)/

CD

board (except MX)

1

wire (flat type) (16 core) (CN101

12

3-10. DRIVER BOARD, SW BOARD

1

two

screws

(+BTTP (M2.6))

4

DRIVER

2

wire (flat type) 5p (CN702)

board

HCD-GX355/GX555/RG270/RG475/RG575

Ver. 1.1

3

connector

4p (CN703)

5

screw

(+BTTP (M2.6))

6

SW board

3-11. OPTICAL PICK-UP BLOCK (KSM-215DCP)

•

Abbreviation MX : Mexican model

2

h

older (213) ASSY

qg

optical pick-up block

(KSM-215DCP)

8

two

insulators

7

two

coil springs

(insulator)

6

two floating

(+PTPWH M2.6)

qs

Remove the four solders of motor.

screws

9

5

qd

qf

qa

gap tube

0

s

crew (+BVTP

1

floating

insulators

two

coil springs

(flat type)

2.6 × 8

screw

screws

)

(+PTPWH M2.6)

two

4

(insulator)

3

two floating

(+PTPWH M2.6)

wire

(CN101)

B

D board (MX)/

C

D board (except MX)

13

HCD-GX355/GX555/RG270/RG475/RG575

3-12. SENSOR BOARD

1

floating

screw

8

(+BTTP (M2.6))

screw

ear (geneva)

s

crew

2

t

ray

(+PTPWH M2.6)

6

floating

(+PTPWH M2.6)

7

g

0

SENSOR board

9

connector

(

CN731)

3

b

elt (table)

4

floating

(+PTPWH M2.6)

5

screw

p

ulley (table)

3-13. MOTOR (TB) BOARD

2

stopper

4

1

stopper

5

t

able motor assy (M741)

3

wire (flat type) 5 core (CN742)

7

MOTOR (TB) board

6

Remove the two solderings of motor.

14

5

two

screws

(+BTTP (M2.6))

3-14. MOTOR (LD) BOARD

4

Remove the two solderings of motor.

5

l

oading motor assy (M751)

HCD-GX355/GX555/RG270/RG475/RG575

2

two

screws

(+BTTP (M2.6))

3

MOTOR (LD) board

1

b

elt (loading)

15

HCD-GX355/GX555/RG270/RG475/RG575

[ --- EQ + ]

Ll

SECTION 4

TEST MODE

MC COLD RESET

The cold reset clears all data including preset data stored in the RAM to initial conditions. Execute this mode when returning the set to the customer.

Procedure:

1. Press three buttons of x , [ILLUMINATION] and [DISC 1] simultane-ously.

2. The message “COLD RESET” is displayed on the fluorescent indicator tube momentarily, then becomes standby states.

AM TUNING INTERVAL CHANGE-OVER (Except AEP, UK, East European, Russian models)

A step of AM tuning interval can be changed over between 9 kHz and 10 kHz.

Procedure:

1. Press the I/1 button to turn the power on.

2. Press the [TUNER/BAND] button to select “AM”.

3. Press the I/1 button to turn the power off.

4. Press two buttons of [PLAY MODE/TUNING MODE] and I/1 simultaneously.

5. The message “AM 9K STEP” or “ AM 10K STEP” is displayed on the fluorescent indicator tube, and thus the channel step is changed over.

CD SHIP (LOCK) MODE

This mode moves the optical pick-up to the position durable to vibration. Use this mode when returning the set to the customer after repair.

Procedure:

1. Press the I/1 button to turn the power on.

2. Press the [CD] button to select “CD”.

3. Press two buttons of [CD] and [POWER] simultaneously.

4. The message “LOCK” is displayed on the fluorescent indicator tube, and the CD ship mode is set.

AMP TEST MODE

This mode is used to display the parameter of amplifier IC and display the VACS status.

Procedure:

1. Press the I/1 button to turn the power on.

2. Press three buttons of x , [ILLUMINATION] and [PRESET EQ] simultaneously.

3. When the AMP test mode is activated, the message “AMP TEST IN” is displayed on the fluorescent indicator tube momentarily, then amplif ier adjustment mode is displayed on the fluorescent indicator tube.

4. Press the [DISPLAY] button to changed over between VACS status display mode and the amplifier IC parameter display mode.

5. In this mode, press the [GROOVE] button to changed over DBFB on/off, and “DBFB ON” or “DBFB OFF” is displayed on the fluorescent indicator tube.

6. In this mode, press the [SURROUND] button to changed over surround on/off, and “SURROUND ON” or “SURROUND OFF” is displayed on the fluorescent indicator tube.

7. In this mode, press the [EQ BAND] button to enter the equalizer adjustment mode. In the equalizer adjustment mode, press the [EQ BAND] button to change over the adjustment band as LO W/MID/HIGH. And turn the each bands.

8. To release the amplifier IC parameter display mode or equalizer adjustment mode, press the I/1 button to the power off.

knob to adjust the equalizer level of

CD SHIP (LOCK) MODE & COLD RESET

This mode is used to perform CD chip (lock) mode and cold reset simultaneously.

Procedure:

1. Press the I/1 button to turn the power on.

2. Press the [CD] button to select “CD”.

3. Press three buttons of x , [CD] and [DISPLAY] simultaneously.

4. The message “COLD RESET” is displayed on the fluorescent indicator tube momentarily, then becomes standby states.

CD TRAY LOCK MODE

This mode is used to unable to take sample disc out of tray in the shop.

Procedure:

1. Press the I/1 button to turn the power on.

2. Press the [CD] button to select “CD”.

3. Load a disc and press two buttons of x and Z for 5 seconds.

4. The message “LOCKED” is displayed on the fluorescent indicator tube and the CD tray is locked. (Even if pressing the Z button, the message “LOCKED” is displayed on the fluorescent indicator tube and the CD tray is locked)

5. To release this mode, press two buttons of x and Z for 5 seconds.

6. The message “UNLOCKED” is displayed on the fluorescent indicator tube and the CD tray is unlocked.

16

HCD-GX355/GX555/RG270/RG475/RG575

AGING MODE

This mode can be used for operation check of CD section and tape deck section. CD section and tape deck section work in parallel.

If an error occurred:

The aging operation stops only an error occurred sections and display then status.

If no error occurs:

The aging operation continues repeatedly.

Procedure:

1. Press the I/1 button to turn the power on.

2. Press the [CD] button to select “CD”.

3. Load three discs and insert two tape to the deck A and B.

4. Press three buttons of x , [ILLUMINATION] and [DISC SKIP/EX- CHANGE] simultaneously.

5. Aging operations of CD and tape are started at the same time.

6. To release this mode, press the I/1 button to turn the power off or press the function buttons to change the function.

1. Display at the Aging Mode

Display operating state of CD section and tape deck section alternately. If an error occurred, stop display which that section.

2. CD Section

The sequence during the aging mode is following as below. Display at the aging mode is the same as the normal operation.

Aging mode sequence (CD section) :

3. Tape Deck Section

The sequence during the aging mode is following as below. If an error occurred, stop display that step.

Aging mode sequence (tape deck section) :

Rewind the tape A and B

“TAPE AAG-1 or TAPE BAG-2”

Shut off

FWD play the tape A

“TAPE AAG-3”

2 minutes

Rewind the tape A

“TAPE AAG-6”

Shut off

FWD play the tape B

“TAPE BAG-3”

2 minutes

Rewind the tape B

“TAPE BAG-6”

Shut off

Start (from disc 1)

Disc chucking

TOC read

Play first track for 2 seconds

Play last track for 2 seconds

EX-change open/close

Open the disc tray

Disc skip

Close the tray

Change the next disc.

Note: “TAPE *AG-*” is display of each step.

PANEL TEST MODE

This mode is used to check the fluorescent indicator tube, LEDs and buttons.

Procedure:

1. Press the I/1 button to turn the power on.

2. Press three buttons of x , [ILLUMINATION] and [GROOVE] simultaneously.

3. Fluorescent indicator tube and LEDs are all turned on.

4. Press two buttons of [ALBUM ---] and [ENTER] simultaneously, mode is changed over.

5. In the key check mode, press each key , the defined key number of every each key list is displayed on the fluorescent indicator tube.

6. In the key count check mode, “KEYCNT 0” is displayed on the fluorescent indicator tube. Each time a key is pressed, “K” value increases. Howe ver , once a key is pressed, it is no longer taken into account.

7. In the headphone input check mode, connect the headphone, the message “H_P ON” is displayed on the fluorescent indicator tube, and disconnect the headphone, the message “H_P OFF” is displayed on the fluorescent indicator tube.

8. In the volume check mode, “VOLUME FLAT” is displayed on the fluorescent indicator tube. Turn the [MASTER VOLUME] knob clockwise, the message “VOLUME UP” is displayed on the fluorescent indicator tube momentarily and turn the [MASTER VOLUME] knob counterclockwise, the message “VOLUME DOWN” is displayed on the fluorescent indicator tube momentarily.

17

HCD-GX355/GX555/RG270/RG475/RG575

MC TEST MODE

This mode is used to check operations of microprocessor.

Procedure:

1. Press the I/1 button to turn the power on.

2. Press three buttons of x , [ILLUMINATION] and [DISC 3] simultane-ously.

3. When the MC test mode is activated, VACS level is displayed on the fluorescent indicator tube momentarily.

4. Turn the

[ --- EQ + ]

Ll

knob clockwise, the message “ALL EQ MAX” is displayed on the fluorescent indicator tube momentarily and turn the

[ --- EQ + ]

Ll

knob counter-clockwise, the message “ALL EQ MIN” is displayed on the fluorescent indicator tube momentarily.

5. Press the [PRESET EQ] button, the message “ ALL EQ FLAT” is displayed on the fluorescent indicator tube momentarily.

6. Turn the [MASTER VOLUME] knob clockwise, the message “VOLUME MAX” is displayed on the fluorescent indicator tube momentarily and turn the [MASTER VOLUME] knob counterclockwise, the message “VOLUME MIN” is displayed on the fluorescent indicator tube momentarily.

7. Press the [GROOVE] button to changed over VACS on/off.

8. When the [CD SYNC] key is pressed with the test tape (AMS- 100, AMS-110A) in the deck, number of space between tunes is counted, then if AMS-110A is set, “OK” is displayed on the fluorescent indicator tube and if AMS-100 is set, “NG” is displayed on the fluorescent indicator tube.

9. Press the I/1 button to release from this mode, then cold reset is performed.

VERSION DISPLAY MODE

This mode is used to check the model, destination and software version.

Procedure:

1. Press the I/1 button to turn the power on.

2. Press three buttons of x , [ILLUMINATION] and [DISC 2] simultane-ously.

3. When this mode is activated, model and destination is displayed on the fluorescent indicator tube.

4. Press the [DISPLAY] button to changed ov er between software version and year, month, day of the software creation display mode and model and destination display mode.

5. To release this mode, press three buttons of x , [ILLUMI NATION] and [DISC 2] simultaneously.

CD ERROR CODE DISPLAY MODE

This mode can be used for error code display of CD section.

Procedure:

1. Press the I/1 button to turn the power on.

2. Press the [CD] key to select “CD”.

3. Press three buttons of x , [CD] and [DISC 1] simultaneously.

4. When this mode is activated, mechanism deck error code is displayed on the fluorescent indicator tube.

5. Press the [GROOVE] button to changed over between optical pick-up error code display mode and mechanism deck error code mode.

6. Turn the

[ --- EQ + ]

history.

7. To release this mode, press the I/1 button to turn the power off.

Ll

knob to change o ver display of error

1. Mechanism Deck Error Code Mode

When this mode is entered, mechanism deck error code is displayed with the 10-character format on the fluorescent indicator tube.

The first digit from the left indicates:

The first digit from the left indicates which mode the error history is. In the mechanism deck error code mode, “M” is displayed on the fluorescent indicator tube.

The second digit from the left indicates:

(Error history number display) The second digit from the left indicates which order the error history is. “1” indicates the latest error history, and each time the number increases by one, the error history goes back to one-previous error.

The third and 4th digit from the left indicates: (Error status display)

The third and 4th digit from the left indicates which error status is indicated.

Display Status

00 No error 08 Table operation time-out (Table does not mo ve to the target

position within the specified time)

16 In the chucking down operation, the operation was retried

by the maximum number of times but the operation could not be completed

17 In the chucking up and down operation, the reverse

recovery processing was attempted but it could not be recovered

18 In the chucking up operation, the operation was retried by

the maximum number of times but the operation could not be completed

20 Loading operation time-out (Table does not move to the

target position within the specified time)

22 As the chuck was in the ex-open status at the initialization,

the closing was attempted but could not be completed

The 5th and 6th digit from the left indicates: (Present status display)

The 5th and 6th digit from the left indicates which operating status when an error occurred is indicated.

Display Status

01 Open completion status 02 From open status, the movement to c hucking down position

is under way

03 From chucking down position, the open operation is under

way 04 Chucking down completion status 10 The chucking down operation is under way 11 The chucking up operation is under way 12 Close completion status 13 From close status, the ex-open operation is under way 14 From ex-open status, the close operation is under way 18 Ex-pen completion status

18

HCD-GX355/GX555/RG270/RG475/RG575

The 7th and 8th digit from the left indicates: (Motor status display)

The 7th and 8th digit from the left indicates which motor output status when an error occurred is indicated.

Display Status

× 0 No table motor output × 1Table motor forward output × 2Table motor backward output × 3Table motor break output

0 × No loading motor output 1 × Loading motor forward output 2 × Loading motor backward output 3 × Loading motor break output

The 9th and 10 th digit from the left indicates: (Tray status display)

The 9th and 10th digit from the left indicates which target processing when an error occurred is indicated.

Display Status

01 Open operation 12 Close operation 18 Ex-open operation

2. Optical Pick-up Error Code Mode

When this mode is entered, optical pick-up error code is displayed with the 8-character format on the fluorescent indicator tube.

The first digit from the left indicates:

The first digit from the left indicates which mode the error history is. In the optical pick-up error code mode, “D” is displayed on the fluorescent indicator tube.

The second digit from the left indicates: (Error history No. display)

The second digit from the left indicates which order the error history is. “1” indicates the latest error history, and each time the number increases by one, the error history goes back to one-previous error .

The 5th and 6th digit from the left indicates: (Error step display)

The 5th and 6th digit from the left indicates which processing when a trouble occurred

Display Contents

01 Power OFF in progress 02 Initialize in progress 03 Oscillation stopping 04 From oscillation stop, oscillation starting 05 Stopping 06 Stop operation is under way 07 Start operation in progress 08 TOC read in progress 09 Search operation is under way 0A Playback operation is under way 0B Pause operation is under way 0C Playback manual search operation is under way 0D Pause manual search operation is under way 0E —

The 7th and 8th digit from the left indicates:

The 7th and 8th digit from the left indicates which operation in progress when a trouble occurred. (Step of each processing of the 5th and 6th digits is indicated)

5 REPEAT LIMIT CANCEL MODE

Number of repeat for CD playback is 5 times when the repeat mode is “REPEAT”. This mode is used to enables CD to repeat playback for limitless times.

Procedure:

1. Press the I/1 button to turn the power on.

2. Press the [CD] button to select “CD”.

3. Press three buttons of x , [CD] and [PLAY MODE/TUNING MODE] simultaneously.

4. The message “LIMIT OFF” is displayed on the fluorescent indicator tube momentarily, CD repeat 5 limit is cancelled.

The third and 4th digit from the left indicates: (Error status display)

The third and 4th digit from the left indicates which error status is indicated.

Display Status

01 Not focused (TOC read without a disc) 02 GFS NG (TOC read with a disc chucked) 03 Start operation time-over 04 Defocused continuously (Defocused during TOC reading) 05 Q code not entered for specified time 06 Tracking not turned ON 07 Blank disc (Blank disc TOC read)

19

HCD-GX355/GX555/RG270/RG475/RG575

e

p

SECTION 5

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 (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.

• Abbreviation MX: Mexican model

S-CURVE CHECK

CD board (except MX) BD board (MX)

TP(FE) TP(VC)

Procedure:

1. Connect an oscilloscope to TP (FE) and TP (VC) on the CD board (except MX) or BD board (MX).

2. Press the I/1 button to turn the power on.

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

4. Confirm that the oscilloscope waveform (S-curve) is symmetrical between A and B. And conf irm peak to peak level within 3 ± 0.5 Vp-p.

oscilloscop

RF signal waveform

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

level : 1.3

±

0.3 Vp-

– CD BOARD (Conductor Side) (except MX) – – BD BOARD (Conductor Side) (MX) –

TP

(VC)

S-curve waveform

symmetry

A

within 3

±

0.5 Vp-

B

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.

Connecting Location: CD board (except MX)

BD board (MX)

RFAC LEVEL CHECK

CD board (except MX) BD board (MX)

TP(RFACO) TP(VC)

Procedure:

1. Connect an oscilloscope to TP (RFACO) and TP (VC) on the CD board (except MX) or BD board (MX).

2. Press the I/1 button to turn the power on.

3. Load the disc (YEDS-18) and playback.

4. Confirm that oscilloscope waveform is clear and check if RF A C signal level is correct or not.

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

distinguished at the center of the waveform.

oscilloscope

TP

(FE)

IC101

TP

(RFACO)

Connecting Location: CD board (except MX)

BD board (MX)

20

SECTION 6

DIAGRAMS

6-1. BLOCK DIAGRAM – CD SERVO Section –

HCD-GX355/GX555/RG270/RG475/RG575

Ver. 1.1

DETECTOR

A

B

C

D

F

E

OPTICAL PICK-UP

BLOCK

(KSM-215DCP)

LASER DIODE

PD

I-V AMP

LD

CD +3V

AUTOMATIC

POWER

CONTROL

Q10

CD DSP

IC101 (1/2) (EXCEPT MX)

IC101 (1/2) (MX)

A

26

B

27

C

28

D

29

F

20

E

19

LD

36

SUMMING

AMP

FOCUS

ERROR

TRACKING

ERROR AMP

APC LD

AMP

RF

AMP

AC_

SUM

FEO

TEO

EQ_

IN

34

24

22

PD

37

RFAC

35

VCA

RFACO

EQ

41

42

45

46

RFACI

ASYI

ASYO

DIGITAL

CLV

PROCESSOR

MDP

6

ASYMMETRY

CORRECTOR

XRST

100

FILTER

51 53

FILI

PCO

FILO

CLTV

DIGITAL PLL

TO SERVO AUTO

SEQUENCER

CPU INTERFACE

DATA

CLOCK

XLAT

31

33 45

32 19

1125052

XPCK

SCOR

SENS

SBSO

98 99115107102 105 104 110 111

SCOR

SBSO

EFM

DEMODULATOR

SUBCODE

PROCESSOR

SQCK

SQSO

EXCK

96 97

EXCK

WFCK

XUGF

INTERNAL BUS

GFS

EMPH

68

113

32K

RAM

ERROR

CORRECTOR

D/A

DIGITAL

INTERFACE

117 93

C4M

GENERATOR

D/A

CONVERTER

SELECTOR

LRCK

BCK

PCMD

63 66 65

XTSL

CLOCK

LRCKI

BCKI

62 60 61

PCMDI

XTAO

XTAI

XTACN

AOUT1

AOUT2

77

78

95

81

86

R-CH

X171

16.9344MHz

SCOR, SBSO,

EXCK, WFCK

CD-L

A

B

(Page 22)

2-AXIS

DEVICE

(TRACKING)

(FOCUS)

M101

(SPINDLE)

M102

(SLED)

O-XLT

I-SCOR

47

O-CD-CLK

O-CD-DATA

SYSTEM CONTROLLER

O-XRST

I-CD-SENS

IC901 (1/4)

MOTOR/COIL DRIVE

IC251 (EXCEPT MX)

IC251 (MX)

CH4OUTF

16

M

15

17

18

14

13

12

11

CH4OUTF

CH3OUTF

CH3OUTR

CH1OUTF

CH1OUTR

CH2OUTF

CH2OUTR

MOTOR

DRIVE

MOTOR

DRIVE

COIL

DRIVE

COIL

DRIVE

MUTE

20

(MX)

(EXCEPT MX)

CH4IN

CH3FIN

CH3RIN

CH1FIN

CH1RIN

CH2FIN

CH2RIN

SWITCHING

IC501

OPIN+

24

23

21

4

5

7

OPOUT

27

9

10

11

12

13

14

2

CD DSP

IC101 (2/2) (EXCEPT MX)

IC101 (2/2) (MX)

SFDR

SRDR

TFDR

TRDR

FFDR

FRDR

PWM GENERATOR

FOCUS/TRACKING/SLED

S101

(LIMIT)

21 23

FEI

TEI

A/D

CONVERTER

FOCUS/

TRACKING/SLED

SERVO DSP

SSTP

7

MIRR,

DFCT, FOK

DETECTOR

SERVO

INTERFACE

SERVO AUTO

SEQUENCER

TO CPU INTERFACE

FOK

MIRR

DFCT

COUT

SCLK

3 1 2

119

108

I-MP3-DI

O-MP3-DATA

O-MP3-CLK

O-MP3-CS I-MP3-ACK I-MP3-REQ

O-MP3-LP

O-MP3-RESET

O-MP3-STB

O-XTCN

I-E-1 – I-E-3

29 30 28 39 40 43 44 38 42

34

49O-LM-F 48O-LM-R

51O-TM-F 50O-TM-R

73I-CD-NUMBER-SENS

56I-OPEN-SW

52 – 54

MIDIO

6

MICK

7

MICS

4

MIACK

8

PO11/BUCK/AD14

36

MILP

5

RESET

2 3

STANDBY

LOADING MOTOR DRIVE

IC701

7 FIN 9 RIN

TABLE MOTOR DRIVE

IC712

7 FIN 9 RIN

LEVEL SHIFT

Q731

ROTARY

ENCODER

S711

ADDRESS DETECT

OPEN

CLOSE

4OUT1 2OUT2

TABLE ADDRESS

SENSOR

IC731

DISC TRAY

OPEN/CLOSE

DETECT

M

S751

16

19

18 14

SBSY/BCKIB

SFSY/LRCKIB

M751

(LOADING)

M741

(TABLE)

15

SDI0

BCKIA

LRCKIA

MP3 DECODER

IC301 (EXCEPT MX)

IC301 (MX)

11

SDO0

• Abbreviation

MX : Mexican model

• R-ch is omitted due to same as L-ch.

• SIGNAL PATH

: CD PLAY

: VIDEO

HCD-GX355/GX555/RG270/RG475/RG575

2121

HCD-GX355/GX555/RG270/RG475/RG575

Ver. 1.1

6-2. BLOCK DIA GRAM – A UDIO/VIDEO Section –

(Page 23)

(Page 21)

E

A

HP1 (PB)

(DECK-A)

(MX)

JK801

MIC 1

JK802

MIC 2

JK802

MIC

(E2, E51, AR)

J751

AUDIO IN

HP IN

CD-L

L-CH

R-CH R-CH

FM 75Ω

COAXIAL

AM

+9V

(E2, E51, AR)

R-CH

FM/AM TUNER PACK

FM ANT

ANT GND

AM ANT

ANT GND

LC72121 DI

LC72121 DO

LC72121 CLK

LC72121 CE

BIAS OSC

L201

TUNER-L

TUNER-R

TUNED

STEREO

TU MUTE

RDS DATA

RDS CLK

MUTING

Q801

TU-MUTING

(AEP, UK, EE)

R-CH

CLK

TUNED

STEREO

R-D R-C

MIC AMP

IC801 (1/2)

VR851

ECHO LEVEL

DO

DI

CE

MIC LEVEL

MIC IN

HP/AUX IN

VR801

ECHO AMP

IC802

MIC AMP

IC801 (2/2)

(MX)

63

1

61

3

7

9

11

MD L

CD L

TUNER L

TAPE L

PB OUT1

TAPE A1 TAPE B1

58

MIC

TONE OUT1

37

36

INPUT SELECT,

TONE CONTROL,

ELECTRICAL VOLUME

IC101

SI

AMS OUT

SC

19

40

18

VIN1

SAOUT1

55

35

BBIN1

VOL OUT1

SW OUT

REC OUT1

(MX)

DBFB

VOL OUT1

SW OUT

SBSO WFCK SCOR EXCK

G

C

D

SCHMIT

TRIGGER

IC1005

D-RAM

IC1002

DQ1 – DQ4

A0 – A7

WE

OE

RAS

CAS

(Page 23)

1, 2, 24, 259 – 12, 14 – 17

3

22

4

23

B

(Page 21)

R-CH

FEED BACK

SWITCH

Q141

33

25

(GX555/RG475/RG575)

CD GRAPHICS

DECODER

IC1001

6

VIDEO AMP

VIDEO MUTING

X1002

14.31818 MHz

NTSC/PAL

SWITCH

Q1001

LEVEL SHIFT Q1005, 1009

LEVEL SHIFT Q1002, 1006

3 5 4 2

25, 27, 29, 3015 – 22

13 28 14 26

DATA SFSY SBSY CLCK

VD0 – VD3

VA0 – VA 7

WE OE RAS CAS

VOUT

XO1

GDET

DEN

MUTE

RESET

44

5960XI1

37

52

54

• Abbreviation

AR : Argentine model E2 : 120V AC Area in E model E51 : Chilean and Peruvian models EE : East European model MX : Mexican model

• R-ch is omitted due to same as L-ch.

IC1006

Q1010

J803

VIDEO OUT

VMUTE

CDG-DET

CDG/_BGC

MUTE_DATA

CDG-RST

• SIGNAL PATH

: TUNER

: CD PLAY

: TAPE PLAY (DECK-A)

: TAPE PLAY (DECK-B)

: REC

: AUX IN

15

: MIC

: VIDEO

L-CH

HRPE1

(REC/PB/ERASE)

(DECK-B)

R-CH R-CH

ERASE

PB MUTING

Q209

R-CH

REC MUTING

Q205, 207

HCD-GX355/GX555/RG270/RG475/RG575

Q203

90

O-REC/PB

R-CH

BIAS OSC

Q201

REC BIAS

SWITCH

Q231, 232

91

O-BIAS

+9V

DI

DO

CLK

66

65

67

I-LC72121-DI

O-LC72121-DO

O-LC72121-CLK

CE

TUNED

STEREO

68

69

70

I-TUNED

I-STEREO

O-LC72121-CE

R-D

TU-MUTING

71

72

O-ST-MUTE

(AEP, UK, EE)

R-C

18

I-RDS-CLK

I-RDS-DATA

MIC IN

HP/AUDIO IN

82

81

I-MIC

I-HP/AUDIO IN

1

2

92

O-BD3401-CLK

O-BD3401-DATA

BAND-PASS

FILTER

Q111, 112

D923 D921

93

94

I-VACS

I-STREAM

I-TAPE-AMS

SYSTEM CONTROLLER

IC901 (2/4)

2222

(MX)

VMUTE

63

60

O-VMUTE

CDG-DET

CDG/_BGC

59

I-CDG-DET

I-CDG-BGC

MUTE_DATA

57

CDG-RST

58

0-CDG-RST

I-CDG-MUTE-DATA

86

85

O-MOTOR

87

O-B-SOL

O-A-SOL

CAPSTAN/REEL

MOTOR DRIVE

Q341, 342

PLUNGER DRIVE

(DECK-A)

Q345, 346

PLUNGER DRIVE

(DECK-B)

Q343, 344

I-TAPE-A-STAT

I-TAPE-B-STAT

I-REEL-A

I-REEL-B

TAPE MECHANISM

DECK BLOCK

MM

(CAPSTAN/REEL)

(DECK-A)

(DECK-B)

A-HALF

A-MODE

88

89

83

84

REC (REW)

B-HALF

B-MODE

REC (FWD)

A-PHOTO

B-PHOTO

6-3. BLOCK DIAGRAM – AMP Section –

HCD-GX355/GX555/RG270/RG475/RG575

(Page 22)

(GX555/RG475/RG575)

G

C

D

(Page 22)

DBFB

VOL OUT1

SW OUT

BUFFER

IC251

MUTING

Q251

MUTING

CONTROL

Q261

R-CH

POWER

AMP

IC441

STANDBY

SWITCH

Q489

AMP ON/OFF

Q933

OVER LOAD

DETECT

R-CH

(GX555/RG475/RG575)

TEMPERATURE

DETECT

Q503, 507

BUFFER

Q271

Q441

+

POWER

AMP

IC501

R-CH

DC DETECT

Q481, 482

+

OVER LOAD

DETECT

Q501

TEMPERATURE

DETECT

Q483, 484

+

DC DETECT

Q505, 506

+

PROTECTOR

R-CH

TH441

Q485

R-CH

D035

RELAY DRIVE

Q486

PROTECT

DETECT

Q487

R-CH

RY B+

RELAY SWITCH

Q488

+

RY441

FAN ON/OFF

Q044

RY501

R-CH

FAN DETECT

Q045

HP IN

JK441

+ –

M001

MM

(FAN)

JK501

+ –

(Page 22)

E

PHONES

L

FRONT SPEAKER

IMPEDANCE USE 6 – 16Ω

R

SUB WOOFER OUT

IMPEDANCE

USE 6 – 16Ω

J701

23

O-SYS-MUTE

24

O-STK-MUTE

SYSTEM CONTROLLER

IC901 (3/4)

95

I-PROTECTOR

RELAY DRIVE

Q502

SUB WOOFER

ON/OFF

Q274

25

O-SWR

(GX555/RG475/RG575)

• R-ch is omitted due to same as L-ch.

• SIGNAL PATH

: TUNER

HCD-GX355/GX555/RG270/RG475/RG575

2323

HCD-GX355/GX555/RG270/RG475/RG575

Ver. 1.1

6-4. BLOCK DIAGRAM – PANEL, POWER SUPPLY Section –

D601 – 606

(FRONT PANEL LED)

(GX555/RG475/RG575)

D608

(FRONT PANEL LED)

FLUORESCENT

S611 – 617, S621 – 626, S631 – 638, S641 – 648,

SW601

FL701

INDICATOR

TUBE

LED DRIVE Q601 – 606

LED DRIVE

Q608

FL/LED DRIVER

S1 – S21

61 – 67

45 – 58,

G1 – G13

68 – 80

STREAN LED1 – STREAN LED6

26 – 31

32

SW LED

KEY1 – KEY4

19 – 22

IC701

SO1

X2

X1

D611

STANDBY

SYSTEM CONTROLLER

IC901 (4/4)

• Abbreviation

E2 : 120V AC Area in E model E3 : 240V AC Area in E model E51 : Chilean and Peruvian models EA : Saudi Arabia model MX : Mexican model

MAIN POWER

TRANSFORMER

PT901

F907

F904

F905

D908

D301, 302

RY B+

+9V

(MX)

+9V

REGULATOR

IC021

B+ SWITCH

Q041, 042

+9V

REGULATOR

IC011

+16V

AMP B+

AMP B–

VP

RECT

D021 – 024

RECT

D011 – 014

REGULATOR

RECT D401

B–

Q902

9 8SI1 7SCK1

16CE

6RESET

4

X701

4.19MHz

3

36 I-VFD-DATA 35 O-VFD-DATA 37 O-VFD-CLK

4 O-VFD-CE 3 O-VFD-RESET

22

O-STBY-LED

O-CDG-POWER

O-FRONT-SP-RELAY

CDG +5V

61

27

+5V

REGULATOR

IC1003

FAN B+

B+ SWITCH

Q1007, 1008

M+7V

M+9V

REGULATOR

Q043

S601, 602

S660

VOLUME

REMOTE CONTROL

RECEIVER

IC610

ROTARY

ENCODER

I-SIRCS-IN

7

74 I-KEY0 97 I-POWER, DISPLAY

6 I-VOL-A

21 I-VOL-B

I-AC-PULSE

I-RESET

I-AC-CUT

O-POWER-RELAY

VF1

VF2

20

+3.3V

MP3 +1.5V

12

5

26

RESET SWITCH

Q901

VREF, VDD

VOLTAGE DETECT

IC902

+1.5V

REGULATOR

IC303 (EXCEPT MX)

IC303 (MX)

D902

VCC

D903

Q902

UNREG

+3.3V

REGULATOR

IC006

EVER +10V

REGULATOR

Q903, 904

D007, 008

D001 – 004

D006

D902 – 905

RECT

F906

SUB POWER

TRANSFORMER

PT902

(EXCEPT E2, E3, E51, EA)

(E2, E3, E51, EA)

S901

VOLTAGE

SELECTOR

240V

220V

120V

(EXCEPT E2, E3, E51, EA)

RY901

RELAY DRIVE

Q002

W001

(AC IN)

HCD-GX355/GX555/RG270/RG475/RG575

2424

HCD-GX355/GX555/RG270/RG475/RG575

d

Ver. 1.1

• Note For Printed Wiring Boards and Schematic Diagrams

Note on Printed Wiring Board:

• X : parts extracted from the component side.

• Y : parts extracted from the conductor side.

• f : internal component.

• : Pattern from the side which enables seeing.

(The other layers' patterns are not indicated.)

Caution: Pattern face side: Parts on the pattern face side seen from (Conductor Side) the pattern face are indicated. Parts face side: Parts on the parts face side seen from (Component Side) the parts face are indicated.

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 parts face side seen from (Side A) the parts face are indicated.

• Indication of transistor

C

Q

B

E

Q

CE

These are omitted.

Note on Schematic Diagram:

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

• All resistors are in Ω and 1/ specified.

• f : internal component.

• 2 : nonflammable resistor.

• 5 : fusible resistor.

• C : panel designation.

Note:

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

• A : B+ Line.

• B : B– Line.

• Voltages and waveforms are dc with respect to ground

under no-signal conditions. – CD/BD Section – no mark :CD PLAY – CD-G Section – no mark : CD-G PLAY – Other Sections – no mark : FM (): CD PLAY 〈〈 〉〉 : TAPE PLAY []: T APE REC

∗ : Impossible to measure

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

Voltage variations may be noted due to normal production tolerances.

• Waveforms are taken with a oscilloscope. Voltage variations may be noted due to normal production tolerances.

• Circled numbers refer to waveforms.

• Signal path.

F : TUNER (FM/AM) E : TAPE PLAY (DECK A) d : TAPE PLAY (DECK B) G : REC J : CD PLAY

f : AUX IN N : MIC L : VIDEO

• Abbreviation

AR : Argentine model AUS: Australian model CND : Canadian model E2 : 120 V AC Area in E model E3 : 240 V AC Area in E model E51 : Chilean and Peruvian models EA : Saudi Arabia model EE : East European model MX : Mexican model RU : Russian model SP : Singapore 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 board

MOTOR (LD) board

MIC board (E2, E51, MX)

TRANSFORMER board

PANEL board

VOL board

CD-G board (MX)

SUB TRANS board

AC1 board

BD board (MX)/ CD board (EXCEPT MX)

SENSOR board

DRIVER board

MOTOR (TB) boar

VIDEO OUT board (MX)

MAIN board

SUB WOOFER board (GX555/RG475/RG575)

HCD-GX355/GX555/RG270/RG475/RG575

POWER board

AUDIO IN board

HEADPHONE board

MAIN board

2525

HCD-GX355/GX555/RG270/RG475/RG575

Ver. 1.1

6-5. PRINTED WIRING BOARD – CD Board – (Except MX model)

1 2 3 4 5 6 7 8 9

A

CD BOARD

(COMPONENT SIDE)

R121

C123

C195

R352 R353

C501 R501

B

C

D

FB301

R201

R205

C201

C203

C302

C303

C305

C210

R313

C315 C316

C314

C312

R162

165

R

171

X

405

R

351

R

R354

R302

C308

R191

173

R

C174

C196

C172

R172

171

C

R

C134

C125

C318

C184

C183

C182

C209

C151

• See page 25 for Circuit Boards Location.

C255

IC501

C257

C258

C259

C14

C10

C15

11

12

R

C18

R

C11

C16

R13

Q10

R10

E

C260

R253

C116

C12

C13

C17

1-860-502-

: Uses unleaded solder.

CD BOARD

(CONDUCTOR SIDE)

C252

IC251

R252

C251

TP (VC)

113 C

R

113

C112 C111

114

R

TP (FE)

PICK-UP BLOCK

112

R

CN101

OPTICAL

(KSM-215DCP)

C114

251 R

13

(13)

C320

C115

R111

M101

(SPINDLE)

M

S101

(LIMIT)

R411

C307

C309

C122

TP (RFACO)

C306

17

307 R

IC301

32

R303

R407

IC101

C124

R132

C163

IC303

13

54

R404

R403

R419

C313

116

4833

C310

C212

R163

132

133

C

141 R

143

R133

R

131

C131

R

R301

64

R306

49

R409

C211

C143

R142

C141

C142

C311

C317 R305

R402

R401

213 C

410 R

408 R

412

C194

R

406 R

182 R

C181

C162

181

C161

151

R

R203

R

161

R

M102

M

(SLED)

186 C

R204

C185

CN201

CN202

1-860-502-

MAIN BOARD

A1

CN301

(Page 32)

13

(13)

E

HCD-GX355/GX555/RG270/RG475/RG575

2626

HCD-GX355/GX555/RG270/RG475/RG575

Ver. 1.1

6-6. SCHEMATIC DIAGRAM – CD Board – (Except MX model)

R307

C307

10k

0.1

MP3REQ

R303 100k

C310

0.1

(Page 35)

FB301

C314

TP433

MP3VDD

WE/SDO1

SDO2

CS/RAS/

PO12

AD15/CAS/

PIO7/BUS3/IO7

SDO3/OE

PO9/AD12

PO08/AD11

VDDM

SRMSTB

VDDT

AD10

AD9

AD8

PO07/AD7

PO06/AD6

PO05 AD5/

47 4V

CN201

27P

M+7V

M-GND

MP3-STB

MP3-REQ

MP3-ACK

MP3-CLK

MP3-DIO

MP3-LP

MP3-CS

MP3(3.3V)

MP3-RST

MP3-GND

SCOR

CD-SENS

CD-CLK

XLT

CD-DATA

XRST

XTCN

AVDD(3.3V)

R-CH

A-GND

L-CH

D-GND

DOUT

DVDD(3.3V)

PIO6/FI3/BUS2/IO7

PIO4/FI1/BUS0/IO4

PIO5/FI2/BUS1/IO5

PO11/BUCK/AD14

PO10/CCE/AD13

AD0/PO00

AD1/PO01

AD3/PO03

AD2/PO02

AD4/PO04

C312C313

C311 C309

0.10.1

0.1 0.1

VOUT

C305 TP422

C302 C303

220

0.1 0.1 4V

TP186

TP187

TP401

TP402

TP403

TP404

TP405

TP406

TP407

TP408

R205

TP417

TP416

TP415

TP414

TP413

TP412

TP419

TP434

TP410

TP411

TP409

R204

PIO3/IO3

PIO2/IO2

MP3 DECODER

TC94A34FG-002

VDD

VSS

C308

47 4V

STBY

NC

MVDD

MGND

MP3STB

MP3REQ

MIACK

MICK

MIDIO

MILP

MICS

MP3RST

0

SCOR

SENS

CLK

XLT

DATA

XRST

XTCN

AVDD

ROUT

LOUT

DOUT

PIO0/SDI2/IO0

PIO1/SDI3/IO1

IC301

VDDX

CKO/PO13/AD16

R306

VIN

GND

VSS

IRQ/FIO

XO

0

CKI/CLOCK/

XI

+1.5V REGULATOR

VDD

VSSX

IC303

BH15FB1WG

R411

R410

R409

R408

R407

R406

R412

TXO

TEST

SBSY/BCKIB

SFSY/LRCKIB

VSSP

MIMD

MP3GND

MP3STB

MP3REQ

MIACK

MIDIO

MP3RST

100

SDI1/

DATA

LRCKIA

BCKIA

SDI0

LRCKO

BCKO

SDO0

MICK

MILP

MICS

STANBY

VCOI

CLOCK

XTACN

MIACK

RESET

R313

VSS

VDDT

MICK

MIDIO

MILP

MICS

VDDP

220

C316C315

0.00220.1

SCOR

C212

SENS

22p

XLT

C211

DATA

220p

XRST

AOUT2

AOUT1

C306

R405

R404

R419

R403

R402

R401

R301 100k

R305 100k

C317

0.01

DOUT

• See page 50 for Waveforms. • See page 50 for IC Block Diagrams.

C142

C151

R203

0

R354

100

R352

100

R351

100

0.1

MIACK

100

MICK

100

MIDIO

MILP

100

MICS

100

MP3STB

100

MP3RST

100

C318

0.01

C213

22p

C320

0

TP435

DVDD

R353

100

10k

R302

R201

AVDD

TP436

C161

0.1

C181

0.1

0

R173

C185 470p

C182

0.1

C186 470p

C201

100 10V

AGND

TP420

C209

0.01

DOUT

C171 R171

22p 470

C172

27p

AOUT1

AOUT2

DGND

TP421

TP427

PCMDI

TP103

LRCK

TP104

PCMD

TP105

BCK

R161

100

C174X171

R172

1M

C183

R181

22

100

6.3V

C184

R182

22

100

6.3V

C203

C162

100

0.1 10V

BCKI

PCMDI

LRCKI

LRCK

VSS

PCMD

BCK

VDD

EMPH

EMPHI

IOVDD2

DOUT

TEST

TEST1

IOVSS2

NC

0.116.9344MHz

XVSS

XTAO

XTAI

XVDD

AVDD1

AOUT1

VREFL

AVSS1

AVSS2

VREFR

AOUT2

AVDD2

NC

IOVDD0

RMUT

LMUT

C501

IC501

TC7S08FU

C143

100

0.1

10V

R151

0

NC

DDCR

XTSL

NC

R165

0

0.1

R501

100

C141

R141

4.7k

AVSS5

VRSEN

AVDD5

DD

DDVROUT

SQCK

SQSO

IOVSS0

XTACN

R162

47k

C210

0.1

C194

0.1

N C

TA X

GND

VCCSWITCHING

100p

C133

0.01

R133 180k

R132

10k

VCTL

AVSS3

VSS

DATA

C196

0.1

A T

T

A

L X

D

MDP

C131

C125 R121

R131C134

0.1 15k

1M0.1

TP125

0.47

C132

BIAS

ASYI

ASYO

VPCO

CXD3059AR

XLAT

K C O L C

CD DSP

AVDD3

IC101

SCLK

SENS

VDD

CLOCK

R191

S N E S

MOTOR/COIL

DRIVE

IC251

BA5947FM

TP

RFACI

(RFACO)

330p

C124

RFACI

AVSS4

RFACO

FCK

XUGF

W

ATSK

0

C122C123

0.10.1

LD

PD

NC

_IN

RFC

EG

VDD

SCOR

C2PO

GFS

XPCK

R O C S

JPO004C251R252R251

MDP6800p22k10k

SW PINO

OPIN+

OUTVREF

OPOUT

PREVCC

R D F T

AC_SUM

C4M

R D R T

CH1FIN

CH4CAPA

PDSENS

DCK W

1RIN

CH

CH4IN

NC

AVDD4

RFDCO

D

C

B

A

VC

FEO

FEI

TEO

TEI

F

E

NC

AVSS0

AVDD0

IOVDD1

FRDR

FFDR

TRDR

TFDR

SRDR

SFDR

IOVSS1

SSTP

MDP

LOCK

VSS

FOK

DFCT

MIRR

COUT

NC

R

D

FR

FF

CH2FIN

CH2RIN

CH3FIN

CH3RIN

R

D R

FD S

S

1500p

R143

3.3k

0.1

1k

R142

FILI

PCO

FILO

CLTV

SYSM

XRST

EXCK

SBSO

0.1

100

C163

R163

T S R X

JPO10 R11

APC 0

R253TP418

10kGAIN_SW

C259

0.1

TP423

IOP1

C17 220

4V

R111

1k

(FE)

TP

R113

1k

JPO103

TP428

TP429

TP430

TP431

TP425

TP432

GND

CNF4

MUTE

GND

AUTOMATIC

C18

1000p

R112

TEI

R114

FRDR

FFDR

TRDR

TFDR

SW+

MDP

F-

VCC

POW

VCC

POW

2SB1690K

POWER

CONTROL

2OUTR

CH

CH3OUTR

C16R12

F+T+T

1100k

Q10

15k

TF

CH2OU

CH3OUTF

+

R13

R10

3.3

C111

C112

C113

C114

C115

0.1

T-

CH1OUTR

CH4OUTF

FRDR

FFDR

TRDR

TFDR

SRDR

SFDR

CH1OUTF

CH4OUTR

3300p

1

TP424

IOP2

D

C

B

A

470p

F

E

MDP

C15

C10

0.1

10

E

C11

10

D

A

B

C

F

TP102

F+

C14

0.1 T-

C116

C195

0.1

C258

0.1

C257

0.1

C252

0.1

C255

0.1

C260

220 10V

F-

100 10V

TP

(VC)

SP-

TP250

SP+

TP251

SL+

TP252

SL-

TP253

VC

VCC

E

TP10

E

D

TP11

D

A

TP12

A

B

TP13

B

C

TP14

C

F

AGND

F

LD

VR

PD

TP15

PD

F+

TP16

F+

T+

TP17

F-

T-

TP18

T-

F-

TP19

F-

CN101

16P

TP426

SW-

S101

(LIMIT)

M101

(SPINDLE)

M102

(SLED)

HCD-GX355/GX555/RG270/RG475/RG575

2727

HCD-GX355/GX555/RG270/RG475/RG575

6-7. PRINTED WIRING BOARD – BD Board – (MX model only)

1 2 3 4 5 6 7 8 9

A

BD BOARD

(COMPONENT SIDE)

R162

C314

C174

R313

R302

C312

C308

R191

R173

C196

C172

R172

171

171 C

R

C134

C195

C125

R121

C123

D

B

C

FB301

R205

R201

C201

C203

C182

C184

C183

C303

C302

C209

C151

C318

X171

C305

C210

C315

C316

165

R

• See page 25 for Circuit Boards Location.

C255

C257

C260

C258

C259

C10

C15

C18

C11

C16

E

Q10

R253

C116

C14

12

11

R

C17

R13

R10

1-864-566-

: Uses unleaded solder.

M101

M

C320

R353

R354

R352

(SPINDLE)

C307

R351

17

R307

32

C309

R411

C122

TP (RFACO)

C306

16

IC301

124 C

S101

(LIMIT)

C310

R303

R407

IC101

132 R

R404

1

4833

R133

131 R

C133

R163

C163

C313

131 C

R405

64

49

R419

C132

13

IC303

54

R403

R301

R306

R406

R412

R408

R203

C213

C162

C194

C181

C161

R151

R401

1-864-566-

C317

R305

R402

R182

R161

C186

R181

R204

R423

11

(11)

C311

R410

R409

C211

C212

C143

141 R

R142

C141

143 R

C142

M102

M

(SLED)

CN201

C185

421 R

R422

A2

MAIN BOARD

CN301

(Page 32)

BD BOARD

(CONDUCTOR SIDE)

C251

IC251

C114

112

R

R111

CN101

OPTICAL

(KSM-215DCP)

C115

C113

113 R

TP (VC)

114 R

C112 C111

TP (FE)

PICK-UP BLOCK

C252

252

R

251

R

11

(11)

E

HCD-GX355/GX555/RG270/RG475/RG575

2828

HCD-GX355/GX555/RG270/RG475/RG575

6-8. SCHEMATIC DIAGRAM – BD Board – (MX model only)

R307

C307

10k

0.1

VDD

CKI/CLOCK/

VSSX

BH15FB1WG

SDI1/

DATA

TXO

LRCKIA

BCKIA

SBSY/BCKIB

SFSY/LRCKIB

SDI0

LRCKO

BCKO

SDO0

VSS

VDDT

MIACK

MICK

MIDIO

MILP

MICS

STANBY

RESET

VDDP

VCOI

VSSP

MIMD

TEST

R313 220

C316C315

0.00220.1

IC303

MP3GND

MP3STB

MP3REQ

MIACK

MICK

MIDIO

MILP

MICS

MP3RST

R411

100

SCOR

CLOCK

XTACN

C212

SENS

22p

XLT

C211

DATA

220p

XRST

WFCK

SBSO

EXCK

R410

100

R409

100

R408

100

R407

100

R406

100

R412

100

R423

100

R421

100

R422

AOUT2

AOUT1

R301 100k

R305 100k

C317

0.01

DOUT

MP3REQ

R303 100k

C310

0.1

(Page 35)

WE/SDO1

SDO2

CS/RAS/

PO12

AD15/CAS/

PIO7/BUS3/IO7

SDO3/OE

PO9/AD12

PO08/AD11

VDDM

SRMSTB

VDDT

AD10

AD9

AD8

PO07/AD7

PO06/AD6

PO05 AD5/

C314

47 4V

TP433

MP3VDD

FB301

CN201

31P

M+7V

M-GND

MP3-STB

MP3-REQ

MP3-ACK

MP3-CLK

MP3-DIO

MP3-LP

MP3-CS

MP3(3.3V)

MP3-RST

MP3-GND

SCOR

CD-SENS

CD-CLK

XLT

CD-DATA

XRST

XTCN

AVDD(3.3V)

R-CH

A-GND

L-CH

D-GND

DOUT

DVDD(3.3V)

D-GND

WFCK

SBSO

EXCK

C311 C309

0.1 0.1

PIO4/FI1/BUS0/IO4

PIO5/FI2/BUS1/IO5

PIO6/FI3/BUS2/IO7

PO11/BUCK/AD14

PO10/CCE/AD13

AD0/PO00

AD3/PO03

AD1/PO01

AD4/PO04

AD2/PO02

C312C313

0.10.1

VOUT

C305 TP422

C302 C303

220

0.1 0.1 4V

TP186

TP187

TP401

TP402

TP403

TP404

TP405

TP406

TP407

TP408

R205

TP417

TP416

TP415

TP414

TP413

TP412

TP419

TP434

TP410

TP411

TP409

R204

PIO2/IO2

PIO3/IO3

MP3 DECODER

TC94A34FG-002

VDD

VSS

C308

47 4V

STBY

NC

MVDD

MGND

MP3STB

MP3REQ

MIACK

MICK

MIDIO

MILP

MICS

MP3RST

0

SCOR

SENS

CLK

XLT

DATA

XRST

XTCN

AVDD

ROUT

LOUT

DOUT

0

PIO0/SDI2/IO0

PIO1/SDI3/IO1

IC301

VDDX

CKO/PO13/AD16

VIN

GND

VSS

R306

0

IRQ/FIO

XI

XO

+1.5V REGULATOR

• See page 50 for Waveforms. • See page 50 for IC Block Diagrams.

C151

R203

0

R354

100

R352

100

R351

100

0.1

C306

MIACK

100

R405

R404

R419

R403

R402

R401

MICK

100

MIDIO

MILP

100

MICS

100

MP3STB

100

MP3RST

100

C318

0.01

C213

22p

C320

1000p

TP435

DVDD

R353

100

10k

R302

R201

AVDD

TP436

C161

0.1

C181

0.1

0

R173

C185 470p

C182

0.1

C186 470p

C201

100 10V

AGND

DGND

TP420

TP421

C209

0.01

PCMDI

TP427

LRCK

TP103

PCMD

TP104

BCK

TP105

DOUT

R161

100

C171 R171

22p 470

R172

C172

27p

AOUT1

AOUT2

1M

C183

R181

22

100

6.3V

C184

R182

22

100

6.3V

C203

C162

100

0.1 10V

C174X171

BCKI

PCMDI

LRCKI

LRCK

VSS

PCMD

BCK

VDD

EMPH

EMPHI

IOVDD2

DOUT

TEST

TEST1

IOVSS2

NC

0.116.9344MHz

XVSS

XTAO

XTAI

XVDD

AVDD1

AOUT1

VREFL

AVSS1

AVSS2

VREFR

AOUT2

AVDD2

NC

IOVDD0

RMUT

LMUT

T S

XR

C143

100

0.1

10V

R151

0

NC

DDCR

AVSS5

DDVRSEN

IOVSS0

XTSL

XTACN

NC

R162

47k

C210

0.1

C194

R165

C163R163

0.1

0

0.1100

TACN

X

DDVROUT

SQSO

AVDD5

SQCK

100p

C133

0.01

R133 180k

R132

10k

VCTL

AVSS3

VSS

DATA

C196

0.1

TA A D

XLT

MDP

C131

R131C134

C125 R121

0.1 15k

0.47

C132

BIAS

ASYI

ASYO

VPCO

AVDD3

CD DSP

IC101

CXD3059AR

SCLK

SENS

VDD

CLOCK

XLAT

R191

CK

S

LO

SEN

C

MOTOR/COIL

DRIVE

BA5947FM

1M0.1

TP

TP125

RFACI

(RFACO)

330p

C124

RFACI

AVSS4

RFACO

XUGF

WFCK

ATSK

0

FCK W

IC251

C122C123

0.10.1

LD

PD

NC

RFC

EG_IN

VDD

SCOR

C2PO

GFS

XPCK

R

SCO

JPO004C251R252R251

MDP6800p22k10k

SW

OPIN-

OPIN+

OUTVREF

OPOUT

PREVCC

TFDR

AC_SUM

C4M

R D

TR

CH1FIN

CH4CAPA

PDSENS

WDCK

CH1RIN

CH4IN

NC

RFDCO

AVDD4

D

C

B

A

VC

FEO

FEI

TEO

TEI

F

E

NC

AVSS0

AVDD0

IOVDD1

FRDR

FFDR

TRDR

TFDR

SRDR

SFDR

IOVSS1

SSTP

MDP

LOCK

VSS

FOK

DFCT

MIRR

COUT

NC

R

DR

FR

FFD

CH2FIN

CH2RIN

CH3FIN

CH3RIN

R D

SFDR

SR

C142

1500p

R143

3.3k

C141

0.1

R141

4.7k

1k

R142

FILI

PCO

FILO

CLTV

SYSM

XRST

EXCK

SBSO

O

K

BS

XC

S

E

JPO10 R11

APC 0

R253TP418

10kGAIN_SW

C259

0.1

TP423

IOP1

C17 220

4V

1k

R111

(FE)

TP

R113

1k

JPO103

TP428

TP429

TP430

TP431

TP425

TP432

GND

CNF4

MUTE

GND

AUTOMATIC

C18

1000p

R112

TEI

R114

FRDR

FFDR

TRDR

TFDR

SW+

MDP

F-

POWVCC

C16R12

Q10

2SB1690K

POWER

CONTROL

F+T+T

CH2OUTR

CH3OUTR

1100k

15k

CH2OUTF

CH3OUTF

+

R10

3.3

C111

C112

C113

C114

C115

0.1

T-

CH1OUTR

CH4OUTF

R13

CH1OUTF

CH4OUTR

1

TP424

IOP2

D

C

B

A

3300p

470p

3300p

470p

F

E

FRDR

FFDR

TRDR

TFDR

SRDR

SFDR

MDP

C15

C10

0.1

10

E

C11

10

D

A

B

C

F

TP102

F+

C14

0.1 T-

C116

C195

0.1

C258

0.1

C257

0.1

C252

0.1

C255

0.1

C260

220 10V

F-

100 10V

TP

(VC)

SP-

TP250

SP+

TP251

SL+

TP252

SL-

TP253

VC

VCC

E

TP10

TP11

TP12

TP13

TP14

E

D

A

B

C

F

AGND

F

LD

VR

PD

TP15

PD

F+

TP16

F+

F-

TP17

T+

T-

TP18

T-

F-

TP19

F-

CN101

16P

TP426

SW-

S101

(LIMIT)

M101

(SPINDLE)

M102

(SLED)

HCD-GX355/GX555/RG270/RG475/RG575

2929

HCD-GX355/GX555/RG270/RG475/RG575

• Semiconductor Location

Ref. No. Location

D701 D-5 D711 C-5

IC701 D-6 IC712 C-6 IC731 A-2

Q731 B-4

6-9. PRINTED WIRING BOARDS – CHANGER Section –

1 2 3 4 5 6 7

SW BOARD

OPEN/CLOSE

CLOSE

OPEN

A

SENSOR BOARD

AK

IC731

EC

B

1-687-132-

CN731

11

(11)

MOTOR (TB) BOARD

13

CN741

C

M741

(TABLE)

M

D

MOTOR (LD) BOARD

• See page 25 for Circuit Boards Location.

CN751

1 2

S751

DETECT

DRIVER BOARD

12

1-687-669-

CN742

1-687-134-

(12)

CN705

CN702

C751

12

(12)

CN704

R733

R732

R734

R735

C737

: Uses unleaded solder.

E

Q731

C736

C735

JW710

R751

JW711

R723

C752

C741

R722

CN703

R721

JW712

JW707

JW708

JW709

JW706

C715

JW705

R713

D711

R701

D701

R702

(Page 32)

MAIN BOARD

C

CN391

CN701

C731

R731

JW702

JW703

JW704

19

R711

R712

19

JW713

IC712

JW701

IC701

JW714

1-866-201-

11

(11)

HCD-GX355/GX555/RG270/RG475/RG575

S711

ROTARY ENCODER

DISC TRAY

ADDRESS DETECT

E

F

M751

(LOADING)

M

CN721

2 1

1-687-133-

12

(12)

3030

Sony HCDRG-270 Service manual

TABLE OF CONTENTS

SERVICING NOTES

GENERAL

DISASSEMBLY

3-1. DISASSEMBLY FLOW

3-2. CASE (TOP)

3-3. DOOR (CD)

3-4. FRONT PANEL SECTION

3-5. MECHANICAL DECK (CWM43FF13)

3-7. BACK PANEL SECTION

3-8. MAIN BOARD

3-9. BD BOARD/CD BOARD

3-10. DRIVER BOARD, SW BOARD

3-11. OPTICAL PICK-UP BLOCK (KSM-215DCP)

3-12. SENSOR BOARD

3-13. MOTOR (TB) BOARD

3-14. MOTOR (LD) BOARD

TEST MODE

ELECTRICAL ADJUSTMENTS

CD SECTION

DIAGRAMS

6-1. BLOCK DIAGRAM – CD SERVO Section –

6-2. BLOCK DIA GRAM – A UDIO/VIDEO Section –

6-3. BLOCK DIAGRAM – AMP Section –

6-4. BLOCK DIAGRAM – PANEL, POWER SUPPLY Section –

6-5. PRINTED WIRING BOARD – CD Board – (Except MX model)

6-6. SCHEMATIC DIAGRAM – CD Board – (Except MX model)

6-7. PRINTED WIRING BOARD – BD Board – (MX model only)

6-8. SCHEMATIC DIAGRAM – BD Board – (MX model only)

6-9. PRINTED WIRING BOARDS – CHANGER Section –