Sony HCDXGR-66 Service manual

HCD-XGR66/XGR600

SERVICE MANUAL

Ver 1.0 2003.03

• HCD-XGR66/XGR600 are the Amplifier, CD player, tape deck and tuner in LBT- XGR66/XGR600.

PHOTO :HCD-XGR66

Model Name Using Similar Mechanism HCD-XGR6/XGR60

CD CD Mechanism Type CDM37B-30BD60C

Section Base Unit Name BU-30BD60C

Optical Pick-up Name A-MAX.3

TAPE Model Name Using Similar Mechanism NEW

Section Tape Mechanism Type CWM43RR23

US Model

HCD-XGR600

E Model

HCD-XGR66

SPECIFICATIONS

AUDIO POWER SPECIFICATIONS (LBT-XGR600 USA model only) POWER OUTPUT AND TOTAL HARMONIC DISTORTION:

With 6 ohm loads, both channels driven, from 120 – 10,000 Hz: rated 160 watts per channel minimum RMS power, with no more than 10% total harmonic distortion from 250 milliwatts to rated output.

Amplifier section LBT-XGR600

Front speaker Continuous RMS power output (reference):

175 + 175 watts (6 ohms at 1 kHz, 10% THD)

Total harmonic distortion less than 0.07% (6 ohms at 1 kHz, 80 W)

LBT-XGR66

The following measured at AC 120, 220, 230 – 240 V 50/60 Hz DIN power output (rated):220 + 220 watts (6 ohms at 1 kHz, DIN) Continuous RMS power output (reference):

250 + 250 watts (6 ohms at 1 kHz, 10% THD) Inputs PHONO IN (phono jacks):

sensitivity 3 mV, impedance 47 kilohms MIC (phone jack): sensitivity 1 mV, impedance 10 kilohms GAME INPUT AUDIO L/R (phono jacks):

sensitivity 250 mV, impedance 47 kilohms GAME INPUT VIDEO (phono jack):

1Vp-p, 75 ohms

MD (VIDEO) IN L/R (phono jacks):

sensitivity 450 mV (250 mV),

impedance 47 kilohms Outputs PHONES (stereo phone jack): accepts headphones of 8 ohms or more MD (VIDEO) OUT L/R (phono jacks):

voltage 250 mV, impedance 1 kilohms VIDEO OUT (phono jack): max. output level 1Vp-p,

load impedance 75 ohms FRONT SPEAKER: accepts impedance of 6 to 16 ohms

CD player section

System Compact disc digital audio system Laser Semiconductor laser

(λ=795 nm)

Emission duration: continuous Frequency response 2 Hz – 20 kHz (±0.5 dB) Signal-to-noise ratio More than 90 dB Dynamic range More than 90 dB CD OPTICAL DIGITAL OUT (square optical connector jack, rear panel) Wavelength 660 nm Output level –18 dBm

— Continued on next page —

9-877-213-01

2003C0200-1

COMPONENT Hi-Fi STEREO SYSTEM

Sony Corporation

Home Audio Company

Published by Sony Engineering Corporation

HCD-XGR66/XGR600

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 (100 kHz step) Other models: 87.5 – 108.0 MHz (50 kHz step) 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

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

Other models: 530 – 1,710 kHz

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

(with the tuning interval set at 9 kHz) Antenna AM loop antenna Antenna terminals External antenna terminal Intermediate frequency 450 kHz

General

Power requirements North American models: 120 V AC, 60 Hz Other models: 120 V, 220 V or

230 – 240 V AC, 50/60 Hz

Adjustable with voltage selector Power consumption LBT-XGR600: 190 watts LBT-XGR66: 290 watts Dimensions (w/h/d) (Main Unit) Approx. 355 x 425 x 451 mm

Notes on chip component replacement

• Never reuse a disconnected chip component.

• Notice that the minus side of a tantalum capacitor may be damaged by heat.

Flexible Circuit Board Repairing

• Keep the temperature of soldering iron around 270˚C during repairing.

• Do not touch the soldering iron on the same conductor of the circuit board (within 3 times).

• Be careful not to apply force on the conductor when soldering or unsoldering.

CAUTION

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

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

Mass (Main Unit) LBT-XGR600: Approx. 13.0 kg LBT-XGR66: Approx. 15.1 kg

Supplied accessories: AM loop antenna (1)

Design and specifications are subject to change without notice.

FM lead antenna (1) Speaker cords (2) Speaker pads (8) Remote Commander (1) Batteries (2)

HCD-XGR66/XGR600

PART No.

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 AC leakage. Check leakage as described below.

LEAKAGE

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 microampers). 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 manufacturers’ instructions to use these instruments.

2. A battery-operated AC 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 2V AC range are suitable. (See Fig. A)

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 – Rear Panel –

To Exposed Metal

Par ts on Set

0.15 µF

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.

1.5 kΩ

Earth Ground

Voltmeter (0.75 V)

MODEL

E2 model

E51 model

US model

• Abbreviation E2 : Central and South America E51 : Chilean and Peruvian

PARTS No.

4-244-927-1s

4-244-927-2s

4-244-927-3s

HCD-XGR66/XGR600

TABLE OF CONTENTS

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

2. DISASSEMBY ··································································· 7

3. TEST MODE ···································································· 16

4. MECHANICAL ADJUSTMENTS ····························· 18

5. ELECTRICAL ADJUSTMENTS ······························· 18

6. DIAGRAMS

6-1. Circuit Board Location ······················································ 21 6-2. Block Diagram – CD Servo Section – ······························· 22

Block Diagram – Tuner/Tape Deck Section – ··················· 23 Block Diagram – Main Section – ······································ 24 Block Diagram

– Display/Key Control/Power Supply Section – ·········· 25 6-3. Printed Wiring Board – BD Section – ······························· 26 6-4. Schematic Diagram – BD Section – ·································· 27 6-5. Printed Wiring Board – Motor LED Section – ·················· 28 6-6. Schematic Diagram –Motor LED Section – ······················ 28 6-7. Schematic Diagram – Main (1/4) Section – ······················ 29 6-8. Schematic Diagram – Main (2/4) Section – ······················ 30 6-9. Schematic Diagram – Main (3/4) Section – ······················ 31 6-10. Schematic Diagram – Main (4/4) Section – ······················ 32 6-11.Printed Wiring Board – Main Section – ····························· 33 6-12. Printed Wiring Board – CD-L, CD-R Section – ················ 34 6-13. Schematic Diagram – CD-L, CD-R Section – ··················· 35 6-14. Printed Wiring Board – TC-A, TC-B Section – ················ 36 6-15. Schematic Diagram – TC-A, TC-B Section – ··················· 37 6-16.Printed Wiring Board – Panel VR, Key Section – ············· 38 6-17. Schematic Diagram – Panel VR, Key Section – ················ 39 6-18.Printed Wiring Board – Panel FL Section – ······················· 40 6-19. Schematic Diagram – Panel FL Section – ························· 41 6-20. Printed Wiring Board – Power Amp Section – ·················· 42 6-21. Schematic Diagram – Power Amp Section –····················· 43 6-22. Printed Wiring Board – Mic Section – ······························ 44 6-23. Schematic Diagram – Mic Section – ································· 44 6-24. Printed Wiring Board – Power Supply Section – ·············· 45 6-25. Schematic Diagram – Power Supply Section – ················· 45 6-26. IC Pin Function Description ············································· 46 6-27. IC Block Diagram ····························································· 47

7. EXPLODED VIEWS

7-1. Case,Back Panel Section ··················································· 54 7-2. Front Panel Section-1 ························································ 55 7-3. Front Panel Section-2 ························································ 56 7-4. Chassis Section ·································································· 57 7-5. CD Mechanism Deck Section (CDM-30BD60C) ······························································· 58 7-6. Base Unit Section (BU-30BD60C) ···································· 59

8. ELECTRICAL PARTS LIST ······································· 60

Main unit

ALPHABETICAL ORDER

SECTION 1

GENERAL

HCD-XGR66/XGR600

This section is extracted from instruction manual.

A – E F – O

CD SYNC Deck A Deck B DIRECTION DISC 1 – 5 DISC SKIP Disc tray DISPLAY Display window EDIT EFFECT ENTER

BUTTON DESCRIPTIONS

?/1 (power)

c/CLOCK SET

z REC x (stop) m/M (rewind/fast forward) NX (play/pause) h/H (play) qd x (stop) qd X (pause) .m/M> (rewind/fast

forward) ./> (go back/go forward)

M/m/</,

A EJECTZ/Z B EJECT

qf wa ql

ej wj

qd wj

FM MODE qs FUNCTION

GAME GAME INPUT AUDIO L/R jacks

GAME INPUT VIDEO jack qj GAME MIXING

ILLUMINATION MEMORY MIC-1/MIC-2 jacks MIC LEVEL

P – Q

PARTY* PARTY MODE

P FILE PHONES jack PLAY MODE Power illuminator 5 PRESET EQ

PUSH OPEN

SAMBA* DISCO* TECHNO*

SALSA/REGGAE/TANGO/ MOVIE/GAME SAMBA* DANCE*

/ROCK*2/

/BALLAD*2/

qg wd

/ROCK*1/JAZZ*1/

/POP*

R – Z

Remote sensor REPEAT SLEEP 9 SURROUND* SURROUND*1 TIMER SELECT TUNER ENTER TUNER/BAND TUNING +/– TUNING MODE VOLUME control X-GROOVE

e; ea

*1 LBT-XGR600 only

Except for LBT-XGR600

wl wk

wj wh

wg wf

23 745 8690qa1

ea es edefege;

qd qf

qg qh

qjqkw; qlwaws

ejeh

HCD-XGR66/XGR600

Remote control

This section is extracted from instruction manual.

ALPHABETICAL ORDER

A – E

CLEAR 4 CLOCK/TIMER SELECT ws

CLOCK/TIMER SET 1 DISC SKIP w; DISPLAY qa EFFECT 9 ENTER 0

F – Z

FILE SELECT +/– qd FUNCTION 3

PRESET +/– ql SLEEP wa SURROUND 5 TUNER/BAND qf TUNING +/– qk VOL +/– 6

wa w; ql qk

qj qh

qg qf

BUTTON DESCRIPTIONS

?/1 (power) 2 m/M (rewind/fast forward)

./> (go back/go forward)

X (pause) qj x (stop) qh

M/m/</, (cursor) qs

CD N (play) qg TAPE AY (play) 8 TAPE BY (play) 7

2 3 4

7 8

9 q;

SECTION 2

)

DISASSEMBLY

• The equipment can be removed using the following procedure.

Set Case Front panel section Tape mechanism deck

Back panel, DC fan, MAIN board

CD mechanism deck (CDM37B-30BD60C)

HCD-XGR66/XGR600

PANEL FL board, GAME board, TC-A board, TUNER board, TC-B board

KEY board

PANEL VR board

HEADPHONE board, MIC VR board, MIC board

FRONT INPUT board

CD-L board, DOOR SW board, CD-R board

Base unit-1 (BU-30BD60C)

Disc table

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

2-1. CASE

Case

Three screws (CASE3 TP2)

Base unit-2 (BU-30BD60C) BD board

Five screws (BVTT 3x6)

Tw o screws (BVTP 3x8

Three screws (CASE3 TP2)

HCD-XGR66/XGR600

)

2-2. FRONT PANEL SECTION

Screw (BVTP 3x8)

Connector (CN311)

Lugs

Connector (CN903)

Connector (CN722)

Flat type wire (CN371

Flat type wire (CN431)

Screw (BVTP 3x8)

Front panel section

2-3. TAPE MECHANISM DECK

Connector (B deck)

Four screws (BVTP 3x8)

Flat type wire (13 core)

Screw (BVTP 3x8)

Claw

Lug

Connector (CN806)

Two screws (BVTP 2.6x8)

Front panel

Two screws (BVTP 2.6x8

Tape mechanism deck

HCD-XGR66/XGR600

)

2-4. PANEL FL BOARD, GAME BOARD, TC-A BOARD, TUNER BOARD, TC-B BOARD

Five screws (BVTP 2.6x8)

Flat type wire

(CN601)

Bracket (TA)

Two claws

Screw (BVTP 2.6x8)

qh Two

claws

GAME board

TC-A board

Four screws

(BVTP 2.6x8)

(CN700)

board

Four screws

(BVTP 2.6x8)

Connector

Three claws

PANEL FL

Screw (BVTP 2.6x8)

Bracket (MAIN)

Four screws (BVTP 2.6x8)

TUNER board

Four screws

(BVTP 2.6x8)

Three claws

2-5. KEY BOARD

Three claws

Front panel

Three claws

Screw (BVTP 2.6x8)

Bracket (TA)

TC-B board

Connector (CN600)

Three screws (BVTP 2.6x8

OPERATION PANEL ASSY

KEY board

Flat type wire (CN801)

Five screws (BVTP 2.6x8)

Front panel

HCD-XGR66/XGR600

)

2-6. HEADPHONE BOARD, MIC VR BOARD, MIC BOARD

MIC VR board

Knob (MIC)

Three screws (BVTP 2.6x8)

Connector (CN812)

Two screws (BVTP 2.6x8)

1 S

crew (BVTP 2.6x8)

2 Bracket HP PWB

MIC board

9 S

crew (BVTP 2.6x8

2-7. PANEL VR BOARD

Front panel

HEADPHONE board

Flat type wire (CN601)

Six screws (BVTP 2.6x8)

Flat type wire (CN801

P ANEL VR board

Nut (Supplied with S700)

Volume knob

Front panel

)

2-8. FRONT INPUT BOARD

Front panel

FRONT INPUT board

J500

Front panel

HCD-XGR66/XGR600

Five screws (BVTP 2.6x8

Bumper ASSY

2-9. CD-L BOARD, DOOR SW BOARD, CD-R BOARD

Connector (CN700)

Sub panel CD ASSY

DOOR SW

board

Froating screw

(DIA.12)

Five claws

FRONT INPUT board

Front panel

Five screws (BVTP 2.6x8

Connector (CN600)

CD-L board

BRACKET (S/P) (L)

Screw (BVTP 2.6x8)

Four screws

(BVTP 2.6x8)

Four screws (BVTP 2.6x8)

CD-R board

BRACKET (S/P) (R)

Screw (BVTP 2.6x8)

Four screws (BVTP 2.6x8)

HCD-XGR66/XGR600

2-10. BACK PANEL, DC FAN, MAIN BOARD

Back panel

(M901)

Flat type wire

(CN401)

DC FAN

Flat type wire (CN441)

Eight screws

(BVTP 3 X 8)

Two screws

(BVTP 3 X 8)

Two screws

(BVTP 3 X 8)

Four screws

(BVTP 3 X 8)

Three screws

(BVTP 3 X 8)

Connector (CN961)

Connector (CN411)

MAIN board

Two screws

(BVTP 3 X 8)

Two connectors

(CN901, 902)

2-11. CD MECHANISM DECK (CDM37B-30BD60C)

Flat type wire

(CN401)

Three screws

(BVTP 3 X 8)

Connector

(CN411)

Tw o screws (BVTP 3 X 8)

HCD-XGR66/XGR600

Four screws (BVTP 3 X 8)

Wire holder

Tw o screws

(BVTP 3 X 8)

CD mechanism deck

(CDM37B-30BD60C)

Five screws (BVTP3 × 8)

Remove two cables fro

wire holder.

HCD-XGR66/XGR600

)

2-12. BASE UNIT-1 (BU-30BD60C)

CD mechanism deck (CDM37B-30BD60C)

Base unit (BU-30BD60C)

2-13. BASE UNIT-2 (BU-30BD60C)

Two floating screws (DIA.12)

Boss

BU fitting screw

Base unit (BU-30BD60C)

Two screws

(BVTP 2.6 X 8)

Two stoppers

(BU)

Two coil springs

(insulator)

Holder (BU30) assy

Two coil springs (insulator

2-14. BD BOARD

BD board

Rivet

BU-30BD60C

Flat type wire (CN102)

Remove the two solders.

HCD-XGR66/XGR600

2-15. DISC TABLE

Note: When the disc table is installed, adjust the positions of roller cam and mark B as shown in the figure, then set to the groove of disc table.

Screw (BVTP 3

Bracket (BU)

Remove the two solders.

Step screw

Disc tabl

HCD-XGR66/XGR600

SECTION 3

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. Turn the power ON or set to the DEMO mode.

2. Press three buttons of x (TC-B) , TUNER ENTER , and \/1 simultaneously.

3. The set is reset, and displays “COLD RESET”, then becomes DEMO mode.

[Change-over the AM Tuning Interval]

•The AM tuning interval can be changed over 9 kHz or 10 kHz.

Procedure:

1. Press the \/1 button to turn the power ON.

2. Select the function “TUNER”, and press the TUNER/BAND button to select the BAND “AM”.

3. Press the \/1 button to turn the power OFF.

4. Press the ENTER and \/1 buttons simultaneously, and the display on the fluorescent indicator tube changes to “AM 9 K STEP” or “AM 10 K STEP”, and thus the tuning interval is changed over.

[CD Ship Mode] (No memory clear)

•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 \/1 button to turn the power ON.

2. Press the EDIT and

3. A message “LOCK” is displayed on the fluorescent indicator tube, and the CD delivery mode is set.

[LED and Fluorescent Indicator Tube All Lit, Key Check Mode]

Procedure:

1. Press three buttons of x (TC-B) , TUNER ENTER ,and DISC 2 simultaneously.

2. LEDs and fluorescent indicator tube are all turned on.

3. Press the DISC 1 button, the MODE and DESTINATION are displayed fluorescent indicator tube.

4. Each time the DISC 1 button is pressed, the MC/GC category version is displayed in the following order.

5. Press the DISC 2 button, and the key check mode is acti-vated.

NR MC GC CD CDDM CDMA

6. In the key check mode, the fluorescent indicator tube displays “K 0 J0 V0”. Each time a button is pressed, “K” value in-creases to “K69”call the button is pressed.However, once a button is pressed, it is no longer taken into account. “V” value increases like 1, 2, 3 ... if turn the VOLUME dial clockwise (“+” direction), or it decreases like 0, 9, 8 ... if turn the VOLUME dial counterclockwise (“–” direction).

7. To release from this mode, press three buttons in the same manner as step 1, or disconnect the power cord.

buttons simultaneously.

\/1

BDABDBSTTATMTC

CDM

[Sled Servo Mode] (CD service mode)

• This mode can run the CD sled motor freely. Use this mode, for instance, when cleaning the pick-up.

Procedure:

1. Select the function “CD”.

2. Press three buttons x (TC-B) , TUNER ENTER , and DISC 5 simultaneously.

3. The Sled Servo mode is selected, if “CD” is blanking on the fluorescent indicator tube.

4. With the CD in stop status, press M button in CD section to move the pick-up to outside track, or m button to inside track.

5. To exit from this mode, press OFF.

Note:

•Always move the pick-up to most inside track when exiting from this mode. Otherwise, a disc will not be unloaded.

• Do not run the sled motor excessively, otherwise the gear can be chipped.

[Change-over of FUNCTION Name]

•The FUNCTION name of external input terminal can be changed over to VIDEO or MD. With the FUNCTION selected to “MD”, about 5dB mute is applied to the input gain.

Procedure:

1. Press \/1 button to turn the power OFF.

2. Press several seconds, and the power is turned on, the display of fluorescent indicator tube changes to “MD” or “VIDEO” instantaneously, and thus the FUNCTION is changed over.

[Aging Mode]

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

• If an error occurred: The aging operation stops and display then status.

• If no error occurs: The aging operation continues repeatedly.

Procedure:

1. Load the tapes into the decks A and B respectively.

2. Press the FUNCTION button to select the function “CD”.

3. Press the PLAY MODE button to set the “ALL DISCS” mode, and press the REPEAT button to “REPEAT” off.

4. Press three buttons of x (TC-B) , TUNER ENTER ,and DISC 4 simultaneously.

5. The aging mode is activated, if the indicator of disc tray number on the fluorescent indicator tube is blinking.

6. To release from the aging mode, press the \/1 button to turn the power OFF and operate the cold reset. (Refer to the “MC Cold Reset”)

1. Display at the Aging Mode

• Display operating state of tape deck section alternately.

• If an error occurred, stop display.

button together with FUNCTION button for

\/1

button turn to the power

\/1

HCD-XGR66/XGR600

2. 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

“TAPE A AG-1”

Shut off

FWD the tape A

“TAPE A AG-2”

2 minutes

Fast forward the tape A

“TAPE A AG-3”

Shut off or 20 seconds

RVS the tape A

“TAPE A AG-4”

2 minutes

Rewind the tape A

“TAPE A AG-5”

Shut off

3. CD Section

• The sequence during the aging mode is following as below.

• If an error occurred, stop display that step.

Aging mode sequence (CD section):

Tray Turn

DISC 1

chucking

TOC Read

Track 1 Play

2 seconds

Last Track Play

2 seconds

FWD the tape B

“TAPE B AG-2”

2 minutes

Fast forward the tape B

“TAPE B AG-3”

Shut off or 20 seconds

RVS the tape B

“TAPE B AG-4”

2 minutes

Rewind the tape B

“TAPE B AG-5”

Shut off

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

Tray Tun

DISC 4

Chucking

TOC Read

Track 1 Play

2 seconds

Last Track play

[VACS ON/OFF]

•The volume control by VACS is turned ON/OFF.

Procedure:

1. Press the \/1 button to turn the power ON.

2. Press the PLAY MODE and \/1 buttons simultaneously.

3. The reaction display appears when switcing ON/OFF.

HCD-XGR66/XGR600

SECTION 4

MECHANICAL ADJUSTMENTS

Precaution

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

record/playback heads pinch rollers erase head rubber belts capstan idlers

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

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

4. After the adjustments, apply suitable locking compound to the parts adjusted.

5. The adjustments should be performed with the rated power supply voltage unless otherwise noted.

Torque Measurement

Mode Torque Meter Meter Reading

2.9~6.9 mN•m

FWD (30 to 70 g•cm)

CQ-102C

FWD

back tension (2 to 6 g•cm)

FF/REW CQ-201B (80 to 170 g•cm)

(0.42 – 0.97 oz•inch)

0.19~0.59 mN•m

(0.03 – 0.08 oz•inch)

7.8~16.7 mN•m

(1.11 – 2.36 oz • inch)

SECTION 5

ELECTRICAL ADJUSTMENTS

DECK SECTION 0 dB = 0.775 V

Precaution

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 R-CH.

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

8. Set to the DOLBY NR OFF.

9. Set to the test mode. (1) Press the \/1 button to turn the power ON. (2) Select the function “TAPE A or B”. (3) Press the button of x (TC-B) , ENTER ,and DISC 3 simultaneously, to set the tape deck test mode

and displays “TEST MODE” on the fluorescent indicator tube.

(4) To release from the test mode, press the \/1 button.

• Test Tape

Tape Signal Used for

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

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

HCD-XGR66/XGR600

)

Record/Playback Head Azimuth Adjustment DECK A DECK B

Note: Perform this adjustments for both decks

Procedure:

1. Mode: Playback (FWD)

test tape P-4-A100 (10 kHz, – 10 dB)

MAIN board MD (VIDEO) OUT jack (J701 L-CH, R-CH

level meter

set

2. Turn the adjustment screw and check 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

Adjustment Location: Playback Head (Deck A).

Record/Playback/Erase Head (Deck B).

forward

reverse

R-CH

Screw position

peak

L-CH peak

R-CH peak

Screw position

3. Mode: Playback

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

L-CH

set

R-CH

in phase 45°90°135°180

MD (VIDEO) OUT jack (J701)

L-CH

R-CH

waveform of oscilloscope

good

oscilloscope

wrong

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

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

HCD-XGR66/XGR600

)

CD SECTION

Note :

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

2. Use LUV-P01 (4-999-032-01) unless otherwise indicated.

3. Use an oscilloscope with more than 10M 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(FE) TP(DVC)

Procedure :

1. Connect oscilloscope to TP (FE).

2. Connect between TP (FE) and TP (DVC ( 1.65 V) by lead wire.

3. Press the \/1 button to turn the power ON.

4. Load a disc (LUV-P01) and actuate the focus search. (In consequence of open and close the disc tray, actuate the focus search)

5. Confirm that the oscilloscope waveform (S-curve) is symmetrical between A and B. And confirm peak to peak level within 2 ±0.5 Vp-p.

S-curve waveform

symmetry

within 4

1Vp-p

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

clearly distinguished at the center of the waveform.

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

level : 1.45

0.3Vp-p

E-F Balance (1 Track jump) Check

oscilloscop

BD board

TP(TE) TP(DVC)

Procedure:

1. Connect oscilloscope to TP (TE) and TP (DVC) board.

2. Press the \/1 button to turn the power ON.

3. Load a disc (LUV-P01) and playback the number nine track.

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

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

center of waveform

B=1.3 ± 0.6Vp-p

Specified level: × 100=less than – 22%

A B

symmetry

A (DC voltage

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

oscilloscope

BD board

TP(RFDC) TP(RFAC)

Procedure :

1. Connect oscilloscope to TP2 (RFDC) and TP1 (RFAC).

2. Press the \/1 button to turn the power ON.

3. Load a disc (LUV-P01) and playback.

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

6. Adjust RV101 so that A (DC voltage) becomes 0.

Checking Location:

[BD BOARD]

DVC

RFAC

SE TE

RFDC

RV101

Five screws (BVTT 3x6)

6-1. CIRCUIT BOARD LOCATION

HCD-XGR66/XGR600

SECTION 6 DIAGRAMS

GAME board

TC-A board

CD-L board

TRANS board

PANEL FL board

FRONT INPUT board

SUB TRANS board

TUNER PACK (FM/AM TUNER UNIT)

TC-B board

HEADPHONE board

CD-R board

MAIN board

PA board

TUNER board

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 1/ specified.

• f : internal component.

•

• 5 : fusible resistor.

• C : panel designation.

• A : B+ Line.

• B : B– Line.

• H : adjustment for repair.

•Voltages and waveforms are dc with respect to ground

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

•Waveforms are taken with a oscilloscope.

• Circled numbers refer to waveforms.

• Signal path.

: nonflammable resistor.

Note:

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

under no-signal conditions. BD board section no mark: CD PLAY Other board section no mark: TUNER (FM/AM) ( ): TAPE PLAY < >: TAPE REC [ ]: CD PLAY

Voltage variations may be noted due to normal production tolerances.

F : TUNER (FM/AM) E : TAPE PALY (DECK A) d : TAPE PALY (DECK B) G : RECORD J : CD PALY (ANALOG OUT) c : CD PALY (DIGITAL OUT) N : MIC INPUT

W or less unless otherwise

Note on Printed Wiring Boards:

• X : parts extracted from the component side.

• : Pattern from the side which enables seeing.

(The other layers´ Patterns are not indicated.)

• Indication of transistor.

These are omitted.

KEY board

PANEL VR board

MIC board

MIC VR board

DOOR SW board

MOTOR board

SENSOR board

BD board

LED board

HCD-XGR66/XGR600

6-2. BLOCK DIAGRAMS

– CD SERVO SECTION –

CD D+5V

OPTICAL PICK-UP BLOCK

(A-MAX.3)

LASER DIODE

PD1

PD2

I-V AMP

I1-6

I5-10

M101

SPINDLE

MOTOR

M102 SLED

MOTOR

DRIVE

RF AMP,

FOCUS/TRACKING ERROR AMP

IC103

F I-V AMP

E I-V AMP

Q101

FOCUS/TRACKING COIL DRIVE,

SPINDLE/SLED MOTOR DRIVE

SUMMING

APC LD

AMP

IC102

CH4OUTF

CH4OUTR

CH3OUTF

CH3OUTR

MOTOR

DRIVE

CH4SIN

CH3FIN

CH3RIN

AMP

∑

A-D

RF EQ

AMP

FOCUS

ERROR AMP

TRACKING

ERROR AMP

APC PD

AMP

RFAC

RFDCO

RFDCI

FEI

FILTER

54 56

FILO

RFAC

ASYMMETRY CORRECTION

ASYI

ASYO

DIGITAL

CLV

MDP

DIGITAL SERVO

PROCESSOR

IC101 (2/2)

XRST

BUFFER

Q451-454

28 29

16 17

RFDC

A/D

CONVERTER

PWM3

PWM1

PWM2

DIGITAL

SUBCODE

PROCESSOR

XLON

XLAT

DATA

14 5 6

X-LAT

CD-DATA

PCO

CLTV

PLL

CPU INTERFACE

CLOK

SENS

CD-CLK

DIGITAL SIGNAL PROCESSOR,

DIGITAL FILTER, D/A CONVERTER

IC101 (1/2)

FILI

SERVO AUTO

SEQUENCER

16K

RAM

EFM

DEMODULATOR

SQSO

SQCK

SCOR

1 2

CD-DATA

INTERNAL BUS

ERROR

CORRECTOR

SERVO

INTERFACE

SSTP

SCLK

COUT

9 21

NCNC NC NC NC

When the optical pick-up

ON :

is inner position.

33 32

CD-CLK

X-LAT

36 35

PWM1

PWM2

PWM3

D/A

INTERFACE

EMPH

WFCK

64 15

(LIMIT)

SQ-CLK SQ-DATA

SCOR

SENS

CD-CLK XLT CD-DATA

HOLD

BU-PWM1 BU-PWM2 BU-PWM3

GFS

S101

PCMD

BCK

LRCK

C2PO

SERIAL

INTERFACE

DIGITAL

OUT

CD-MUTE

TBL-SENS

BU UP/DW SW

LED-DISK

NC NC NC NC

DOUT

DIGITAL

FILTER,

NOISE SHAPER

TO MIRR/DFCT/ FOK DETECTOR

(UP SWITCH)

DISC TABLE

SENSOR

IC202

S201

LED DRIVE

Q201

PWM

INTEGRATOR

AOUT1

AOUT2

(DISC No.)

D201

CLOCK

GENERATOR

AIN1

AIN2

BUFFER

TIMING

LOGIC

LOUT1

LOUT2

XTAI

XTAO

R-CH

MUTE

Q401

X101

16.9344MHz

CD-L

(Page 24)

CD DIGITALOUT

OPTICAL

TRANSCEIVER

IC451

Q809,810

LEVEL SHIFT

TRACKING

COIL

FOCUS

COIL

SFDR

SRDR

T+

T-

F+

F-

CH2OUTF

CH2OUTR

CH1OUTF

CH1OUTR

COIL

DRIVE

COIL

DRIVE

CH2FIN

CH2RIN

CH1FIN

CH1RIN

MUTE

TFDR

TRDR

FFDR

FRDR

PWM GENERATOR

FOCUS/TRACKING/SLED

SERVO DSP

FOCUS/TRACKING/SLED

MIRR/DFCT/

FOK

DETECTOR

TO SERVO INTERFACE

FOK

MIRR

DFCT

NC NC

SYSTEM CONTROLLER

(CD MECHANISM CONTROL)

IC501 (1/4)

XRST

MTR-CTRL1

MTR-CTR2

TABLE MOTOR DRIVER

IC201

Q412

Q411

IN2

MOTOR

IN1

DRIVE

OUT2

OUT1

M201

(TABLE)

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

• SIGNAL PATH

: CD PLAY (ANALOG OUT)

: CD PLAY (DIGITAL OUT)

–TUNER/TAPE DECK SECTION –

HCD-XGR66/XGR600

HEAD

REC/PB

HEAD

ERASE

HEAD

DECK-A

DECK-B

R-CH

T331

Q323,325

BIAS OSC

Q331

SWITCH

Q321,322,327

TC A+10

Q334,335

REC-OUT

R-CH

120

DECK A/B SELECT

PB/REC EQUALIZER AMP

IC301

28 27 26

A/B

NORM/HIGH

13 12 11 15 14

HPF

Q341,342,344

ALC ON/OFF

REC MUTE ON/OFF

AMS DETECT

PB-OUT1

ALC1

MUTE ON/OFF

Q343

SYSTEM CONTROL

(CD MECHANISM CONTROL)

IC501(2/4)

AMS-IN

TC-MUTE

REC-MUTE

ALC

PB-L

REC-L

(Page 24)

75Ω

TC BLOCK

REC(REW) REC(FWD)

B-PHOTO A-PHOTO

B-MODE A-MODE

B-HALF A-HALF

A-SOL

B-SOL

CAP M+

CN371

ANTENNA

FM/AM TUNER UNIT

ST-LOUT

FM ANT

AM ANT

ST-ROUT

ST-MUTE

STEREO

TUNED

OUT(ST-DIN) IN(ST-DOUT)

ST-CLK

ST-CE

R-CH

ST-MUTE STEREO TUNED

ST-DIN ST-DOUT ST-CLK ST-CE

ST-L

(Page 24)

Q383,384

A TRIG

DRIVE

Q381,382

B TRIG

DRIVE

Q385,386

CAP MOTOR

DRIVE

PB-A/B BIAS

REC-B

REC-A

B-SHUT A-SHUT

89 57

B-PLAY SW

A-PLAY SW B-HALF

A-HALF

70 69

TC-RELAY

A-TRIG

B-TRIG

CAPM-CTRL

ST-MUTE

STEREO

TUNED

ST-DIN

ST-DOUT

23 27

ST-CLK ST-CE

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

• SIGNAL PATH

: TUNER (FM/AM)

: PLAYBACK (DECK A)

: PLAYBACK (DECK B)

: RECORD

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