Sony HCDRG-22 Service manual

HCD-GX30/RG22/RG33

SERVICE MANUAL

Ver 1.0 2002. 04

•HCD-GX30/RG22/RG33 are the tuner, deck, CD and amplifier section in MHCGX30/RG22/RG33.

Canadian Model

HCD-GX30

AEP Model

UK Model

E Model

HCD-RG22/RG33

Australian Model

HCD-RG22

	CD	Model Name Using Similar Mechanism	HCD-DX10
		CD Mechanism Type	CDM58F-K6
	Section
		Optical Pick-up Name	KSM-213DCP/Z-NP
	Tape deck	Model Name Using Similar Mechanism	NEW
	Section	Tape Transport Mechanism Type	CWL43FF48

Amplifier section

North American models: HCD-GX30

Continuous RMS power output (reference)

75 + 75 watts (6 ohms at

1 kHz, 10% THD) Total harmonic distortion less than 0.07%

(6 ohms at 1 kHz, 40 W)

European models: HCD-RG33

DIN power output (rated) 60 + 60 watts

(6 ohms at 1 kHz, DIN) Continuous RMS power output (reference)

75 + 75 watts (6 ohms at

1 kHz, 10% THD) Music power output (reference)

150 + 150 watts (6 ohms at 1 kHz, 10% THD)

HCD-RG22

DIN power output (rated) 50 + 50 watts

(6 ohms at 1 kHz, DIN) Continuous RMS power output (reference)

60 + 60 watts (6 ohms at

1 kHz, 10% THD) Music power output (reference)

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

SPECIFICATIONS

Other models: HCD-RG33

The following measured at AC 120, 220, 240 V, 50/60 Hz

DIN power output (rated) 60 + 60 watts

(6 ohms at 1 kHz, DIN) Continuous RMS power output (reference)

75 + 75 watts (6 ohms at

1 kHz, 10% THD)

HCD-RG22

The following measured at AC 120, 220, 240 V 50/60 Hz

DIN power output (rated) 50 + 50 watts

(6 ohms at 1 kHz, DIN) Continuous RMS power output (reference)

60 + 60 watts (6 ohms at

1 kHz, 10% THD)

Inputs

AUDIO INPUT (phono jack):

voltage 450 mV, impedance 47 kilohms

Outputs

PHONES (stereo mini jack):

accepts headphones of 8 ohms or more

Front speaker: accepts impedance of 6 to 16 ohms

Sub woofer speaker (MHC-GX40 only):

accepts impedance of 12 to 16 ohms

CD player section

System	Compact disc and digital
	audio system
Laser	Semiconductor laser
	(λ=780 nm)
	Emission duration:
	continuous
Frequency response	2 Hz – 20 kHz (±0.5 dB)
Wavelength	780 – 790 nm
Signal-to-noise ratio	More than 90 dB
Dynamic range	More than 90 dB

Tape deck section

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

Tuner section

FM stereo, FM/AM superheterodyne tuner

FM tuner section
Tuning range	87.5	– 108.0 MHz
Antenna	FM lead antenna
Antenna terminals	75 ohms unbalanced
Intermediate frequency	10.7	MHz

— Continued on next page —

MINI HI-FI COMPONENT SYSTEM

9-874-001-01 Sony Corporation

2002D1600-1 Home Audio Company

© 2002.04

Published by Sony Engineering Corporation

HCD-GX30/RG22/RG33

AM tuner section

Tuning range
Pan-American models:	530 – 1,710 kHz (with the
	interval set at 10 kHz)
	531 – 1,710 kHz (with the
	interval set at 9 kHz)
European and Middle Eastern models:
	531 – 1,602 kHz (with the
	interval set at 9 kHz)
Other models:	530 – 1,710 kHz (with the
	interval set at 10 kHz)
	531 – 1,602 kHz (with the
	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
European models:	230 V AC, 50/60 Hz
Australian model:	230 – 240 V AC,
	50/60 Hz
Argentine models:	220 V AC, 50/60 Hz
Mexican 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
Canadian models:
MHC-GX30:	125 watts
European models:
MHC-RG33:	125 watts
	0.5 watts (at the Power
	Saving Mode)
MHC-RG22:	105 watts
	0.5 watts (at the Power
Other models:	Saving Mode)
MHC-RG33:	125 watts
MHC-RG22:	105 watts
Dimensions (w/h/d)	Approx. 280 × 325 × 412 mm
Mass
North American models:
HCD-GX30:	Approx. 9.0 kg
European models:
HCD-RG33:	Approx. 9.0 kg
HCD-RG22:	Approx. 8.5 kg
Other models:
HCD-RG33:	Approx. 9.5 kg
HCD-RG22:	Approx. 9.0 kg
Supplied accessories:	Remote Commander (1)
	Batteries (2)

AM loop antenna (1)

FM lead antenna (1)

Front speaker pads (8)

Design and specifications are subject to change without notice.

SAFETY CHECK-OUT

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

To Exposed Metal

Parts on Set

								AC
0.15 µF				1.5 kΩ				Voltmeter
								(0.75 V)

Earth Ground

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

2

HCD-GX30/RG22/RG33

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 component in this product is capable of emitting radiation exceeding the limit for Class 1.

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

CAUTION

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

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.

SAFETY-RELATED COMPONENT WARNING!!

COMPONENTS IDENTIFIED BY MARK 0OR 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.

TABLE OF CONTENTS

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

2.DISASSEMBLY ································································ 6 2-1. Case (Top) ····································································· 6 2-2. CD Door ········································································ 7 2-3. Front Panel Section ······················································· 7 2-4. CD Mechanism Deck (CDM58F-K6) ·························· 8 2-5. Tape Mechanism Deck (CWL43FF48) ························· 8 2-6. REM Board and PANEL Board ···································· 9 2-7. KEY Board ··································································· 9 2-8. Back Panel Section ····················································· 10 2-9. SUB TRANS Board, VIDEO OUT Board and

SENSOR Board ·························································· 10 2-10. MAIN Board ······························································· 11 2-11. POWER Board ···························································· 11 2-12. TRANS Board ···························································· 12 2-13. CD Board and DRIVER Board ··································· 12 2-14. SPDL Board ································································ 13 2-15. Optical Pick-up (KSM-123DCP) ································ 13 2-16. MOTOR Board, ADDRESS SENSOR Board ············ 14 2-17. Table (New), Cam (Control) and DC Motor ··············· 14

3.TEST MODE ···································································· 15

4.ELECTRICAL ADJUSTMENTS ······························· 17

5.DIAGRAMS ······································································ 19 5-1. Circuit Boards Location ·············································· 19 5-2. Block Diagrams ·························································· 20 5-3. Printed Wiring Boards – CD Section (1/2) – ·············· 22 5-4. Printed Wiring Boards – CD Section (2/2) – ·············· 23 5-5. Schematic Diagram – CD Section – ··························· 24 5-6. Printed Wiring Board – MAIN Board – ····················· 25 5-7. Schematic Diagram – MAIN Board (1/4) – ··············· 26 5-8. Schematic Diagram – MAIN Board (2/4) – ··············· 27 5-9. Schematic Diagram – MAIN Board (3/4) – ··············· 28 5-10. Schematic Diagram – MAIN Board (4/4) – ················ 29 5-11. Printed Wiring Boards – PANEL Section – ················ 30 5-12. Schematic Diagram – PANEL Section – ···················· 31 5-13. Printed Wiring Boards – POWER/TRANS Section – 32 5-14. Schematic Diagram – POWER/TRANS Section – ····· 33 5-15. IC Pin Function Description ······································· 36

6.EXPLODED VIEWS ······················································ 38 6-1. Main Section ······························································· 38 6-2. Front Panel Section ····················································· 39 6-3. MAIN Board Section ·················································· 40 6-4. CD Mechanism Deck Section (CDM58F-K6) ··········· 41

7.ELECTRICAL PARTS LIST ······································· 42

ATTENTION AU COMPOSANT AYANT RAPPORT

À LA SÉCURITÉ!

LES COMPOSANTS IDENTIFÉS PAR UNE MARQUE 0 SUR LES

DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT. NE REMPLACER CES COMPOSANTS QUE PAR DES PIÈSES SONY DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU DANS LES SUPPÉMENTS PUBLIÉS PAR SONY.

3

HCD-GX30/RG22/RG33

SECTION 1

GENERAL

This section is extracted from instruction manual.

Main unit

ALPHABETICAL ORDER

A – E

AUDIO jacks ws (24) CD wj(11, 12, 18) CD SYNC 7(18) Deck A w;(16, 17) Deck B qh (16 – 19) DISC 1 – 3 0(11, 12)

DISC SKIP/EX-CHANGE qa(10, 11)

Disc tray 9(10) DISPLAY 2(16, 21) EFFECT ON/OFF qj (20)

G – Z

GAME wf (22, 24) GAME EQ ql (20, 24) GAME MIXING 4 (22) GROOVE 6(20) MOVIE EQ 5(20) MUSIC EQ 9(20) PHONES jack qf

REC PAUSE/START 8(18) TAPE A/B wg(16, 18) TUNER/BAND wh(13 – 15, 18) VIDEO jack wd (24)

VOLUME control qd

BUTTON DESCRIPTIONS

?/1 (power) 1

ZOPEN/CLOSE qs Z(deck B) qg

M qk

.qk >qk Xqk N qk x qk m qk

Z(deck A) wa

12 3 4 5 678 9

wj		0
wh		qa
wg
		qs
wf
wd		qd
ws
		qf
wa		qg
w;		qh
ql	qk	qj

4

Press CLOCK/TIMER SET on the remote.

Remote Control

ALPHABETICAL ORDER

A – G

CD ql (11, 12, 18) CLEAR w; (12)

CLOCK/TIMER SELECT 2 (19, 23)

CLOCK/TIMER SET 9 (10, 19, 23)

DISPLAY 6 (16, 21) D.SKIP 7 (11)

ENTER qg (10, 12 – 14, 19, 23) EQ +/– qf (20)

GAME 0 (22, 24) GROOVE qd (20)

BUTTON DESCRIPTIONS

O – Z

ON/OFF qh (20)

PLAY MODE wa (11, 12, 17) PRESET +/– 5 (13 – 15) REPEAT 8 (11)

SLEEP 1 (22) STEREO/MONO 8 (15) SURROUND qa (20) TAPE A/B 9 (16, 18)

TUNER MEMORY qj (13, 14) TUNER/BAND qk (13 – 15, 18) TUNING +/– 5 (13 – 15)

VOL +/– qs

?/1 (power) 4
M 5
. 5
> 5
X 5
N 5
m 5	1 2 3 4
x 5

		5
	wa	6
		7
	w;	8
	ql	9
	qk	0
	qj	qa
	qh	qs
	qg	qd

qf

HCD-GX30/RG22/RG33

Setting the clock

1 Press ?/1 to turn on the system.

2

3 Press . or > on the remote repeatedly to set the hour.

4 Press ENTER on the remote.

The minute indication flashes.

5 Press . or > on the remote repeatedly to set the minute.

6 Press ENTER on the remote.

The clock starts working.

To adjust the clock

1Press CLOCK/TIMER SET on the remote.

2Press . or > on the remote to select “CLOCK SET”, then press ENTER on the remote.

3Do the same procedures as step 3 to 6 above.

Note

The clock settings are canceled when you disconnect the power cord or if a power failure occurs.

5

HCD-GX30/RG22/RG33

SECTION 2

DISASSEMBLY

Note : Disassemble the unit in the order as shown below.

SET

CASE (TOP)

CD DOOR

FRONT PANEL SECTION

CD MECHANISM DECK (CDM58F-K6)

TAPE MECHANISM DECK (CWL43FF48)

REM BOARD AND PANEL BOARD

KEY BOARD

BACK PANEL SECTION

SUB TRANS BOARD,SENSOR BOARD AND VIDEO BOARD

MAIN BOARD

POWER BOARD

TRANS BOARD

CD BOARD AND DRIVER BOARD

SPDL BOARD

OPTICAL PICK-UP (KSM-213DCP)

MOTOR BOARD, ADDRESS SENSOR BOARD

TABLE (NEW),CAM (CONTROL) AND DC MOTOR

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

2-1. Case (Top)

qa four screws (+BVTP 3 × 10)

qs

qf case (Top)

6 two screws (Case 3 TP2)

case (Side-L)

	8 screw	qs
	(+BVTP 3 × 8)	qd
	q;
		case (Side-R)
		5
7 screw (Case 3 TP2)		3 screw
		(+BVTP 3 × 8)
9 screw		1 two screws
(+BVTT 3 × 8)		(Case 3 TP2)
		4 screw
		(+BVTT 3 × 8)
		2 screw (Case 3 TP2)

6

2-2. CD Door

CD mechanism deck (CDM58F-K6)

1 Turn the pulley to the direction of arrow.

Front panel side

pulley

2 Pull-out the disc tray.

HCD-GX30/RG22/RG33

4 CD door

3

2-3. Front Panel Section

6 connector 2p (CN682)

4 screw (+BVTP 3 × 10)

7 wire (flat type)

19p (CN733)

3 screw (+BVTP 3 × 10)

5

2 screw (+BVTP 3 × 10)

8 connector 3p (CN201)

9 wire (flat type) 13p (CN207)

qs front panel

0 connector 3p (CN303)

qa connector 7p (CN202)

1 three screws (+BVTT 3 × 6)

7

HCD-GX30/RG22/RG33

2-4. CD Mechanism Deck (CDM58F-K6)

1 screw (+BVTP 3 × 10)

4 CD mechanism deck (CDM58F-K6)

3

2 connector 7p (CN734)

2-5. Tape Mechanism Deck (CWL43FF48)

2 three ground wires

1 six screws (+BVTP 2.6 × 8)

3 tape mechanism deck (CWL43FF48)

8

HCD-GX30/RG22/RG33

2-6. REM Board and PANEL Board

two claws

claw

2

REM board

3 eight screws

6 REM board × (+BVTP 2.6 8)

four claws

5 Remove the soldering (three portions)

		4 connector
1 volume knob	7 PANEL board	13p (CN662)

2-7. KEY Board

two claws

three claws	2 KEY board

1 four screws (+BVTP 2.6 × 8)

9

HCD-GX30/RG22/RG33

2-8. Back Panel Section

7 back panel

1 four screw (+BVTP 3 × 10)

3 connector

3p (CN903)

	6	2 two screw	× 6)
		(+BVTT 3

4 connector

2p (CN301)

5 connector

2p (CN505)

2-9. SUB TRANS Board, VIDEO OUT Board and SENSOR Board

6 cover (duct)	4 VIDEO board	3 screw (+BVTP 3 × 10)
		5 two screws (+BVTP 3 × 10)

9 two screws (+BVTP 3 × 10)

8 SENSOR board

7 screw (+BVTP 3 × 10)

1 screw (+BVTP 3 × 10)

2 SUB TRANS board

0 DC fan (M961)

10

HCD-GX30/RG22/RG33

2-10. MAIN Board

4 MAIN board

1 screw (+BVTT 3 × 6)

3 connector 13p (CN502)

Main board

2 connector 13p (CN503)

2-11. POWER Board

1 two screws (+BVTT 3 × 6)

2 three screws (+BVTT 3 × 6)

7 heat sink

6 POWER board

4 two screws (+BVTP 3 × 16)

3

5 connector 13p (CN915)

11

HCD-GX30/RG22/RG33

2-12. TRANS Board

2 two screws (+BVTT 4 × 6)

1 two screws (+BVTT 4 × 6)

3 TRANS board

2-13. CD Board and DRIVER Board

3 four screws (+BTTP M2.6 )

5 CD board

4

2 wire (flat type)

16p (CN731)

1 connector 10p (CN735)

6 Screw (+BTTP M2.6 )

8 DRIVER board

7 wire (flat type)

8p (CN702)

12

HCD-GX30/RG22/RG33

2-14. SPDL Board

1 Remove solder (four places)

2 Remove solder (four places)

3 SPDL board

2-15. Optical Pick-up (KSM-213DCP)

		1 screw (+PTPWH M2.6)
2 holder (BU) assy
	9	6 screw (DIA. 12)
0 optical pick-up
(KSM-213DCP)		8 two insulators

7 two insulators

5 two screws (+PTPWH M2.6)

4 two stoppers (BU)

3 two screws (+BTTP M2.6)

13

HCD-GX30/RG22/RG33

2-16. MOTOR Board, ADDRESS SENSOR Board

2 screw (+PTPWH 2.6 × 8)

5 two screws (+BTTP M2.6)

7 MOTOR board

		6 Remove the two solderings of motor.
3 tray	8 screw (+BTTP M2.6)	4 connector 4p (CN722)
		9 ADDRESS SENSOR board

1 Pull out the disc tray.

2-17. Table (New), Cam (Control) and DC Motor

	2 screw (STEP)
	3 cam (CONTROL)
	5 pulley (S)
	6 belt
*Cautions of an assembly
DC motor (TURN)	7 DC motor (TURN)
	4 gear (U)
pulley (S)	claw

claw

1 table (NEW)

14

HCD-GX30/RG22/RG33

SECTION 3

TEST MODE

[Change-over of AM Tuner Step between 9 kHz and 10 kHz]

•A step of AM channels can be changed over between 9 kHz and 10 kHz. (Except AEP/UK models)

Procedure:

1.Press ?/1 button to turn the set ON.

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

3.Press ?/1 button to turn the set OFF.

4.Press TUNER/BAND and ?/1 buttons simultaneously, and the display of fluorescent indicator tube changes to “AM 9 k STEP” or “AM 10 k STEP”, and thus the channel step is changed over.

[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 x , GROOVE , and ?/1 simultaneously.

2.The fluorescent indicator tube displays “COLD RESET” and the set is reset.

[Aging Mode]

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

•If an error occurred:

The aging operation stops and is displayed status.

•If no error occurs:

The aging operation continues repeatedly.

1.Operating method of Aging Mode

Turn on the main power and select “CD” of the function.

1)Set three discs in tray. Select ALL DISCS, and REPEAT OFF.

2)Load the tapes recording use into both decks.

3)Press three buttons x , GAME EQ , and DISC SKIP/EX-CHANGE simultaneously.

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

5)To exit the aging mode, perform [Cold Reset].

2.Aging mode in CD section

1) Operation during aging mode

•In the agining mode ,the program is excuted in the following sequence.

(1)The disc tray opens and closes.

(2)The disc tray turns to select a disc 3.

(3)The pickup accesses to the first track, and plays 3 seconds.

(4)The pickup accesses to the last track, and plays 3 seconds.

(5)The disc tray opens and closes.

(6)The disc tray turns to select a disc 1.

(7)The same operation starts like step (3).

(8)After a disc 1 aging operation, a disc 2 is selected.

(9)When an aging operation of a disc 3 is completed, the display “AGING ” value increases.

(10)If no error occurs, the aging operation continues repeatedly.

2) Error display

	Disc error
Display	Error
E00D01022	Focus error (No disc)
E00D02022	Sub Q error (Focus is good)
E00D02023	TOC reading error
E00D02014	Access error (Unable within regular time)
	Mechanism error
Display	Error
E00M__E_0	Error during opening tray
E00M__C_2	EX-CHANGE disc error
E00M__D_0	Error during closing tray
E00M__F_3	EX-OPEN error
E00M__D_5	EX-CLOSE error
E00M__C_2	Chuck-up error
E00M__C_3	Unchucking error

3.Aging mode in Tape Deck section

1) Operation during aging mode

•In the agining mode, the program is excuted in the following sequence.

Step	Operation		Display
1	Rewind the TAPE A	TAPE	AAG-1
2	Rewind the TAPE B	TAPE	BAG-2
3	Play the TAPE A (1 minute)	TAPE	AAG-2
4	Stop the TAPE A (1 second)	TAPE	AAG-3
5	Play the TAPE A (3 minutes)	TAPE	AAG-4
6	Rewind(AMS) the TAPE A	TAPE	AAG-5
7	F.F.(AMS) the TAPE A	TAPE	AAG-6
8	Play the TAPE B (1 minute)	TAPE	BAG-2
9	Stop the TAPE B (1 second)	TAPE	BAG-3
10	Record the TAPE B (3 minutes)	TAPE	BAG-4
11	Rewind(AMS) the TAPE B	TAPE	BAG-5
12	F.F.(AMS) the TAPE B	TAPE	BAG-6

2) Error display

• If error occurred, the display remains like “TAPE BAG-2”.

4.Exiting from the aging mode

• Be sure to perform Cold Reset to exit from the aging mode.

15

HCD-GX30/RG22/RG33

[GC Test Mode]

•All fluorecent segments and LEDs are tested.

•Keyboard check.

Procedure:

1.Press ?/1 button to turn the set ON.

2.To enter the test mode, press the three buttons x , GAME EQ and DISC 2 simultaneously.

3.All segments and LEDs (without STANDBY LED) are turned on.

4.Press GAME EQ and DISC 2 buttons simultaneously, and the key check mode is activated.

5.The message “KEY 0 0 0 0” is displayed.

Each time a button is pressed, the key code number is displayed.

6.Press GAME EQ and DISC 2 buttons simultaneously, and the key count mode is activated.

7.The message “KEYCNT 0 1” is displayed.

Each time a button is pressed, “KEYCNT 0 1” value increased. However, once a button is pressed, it is no longer taken into account.

8.Press GAME EQ and DISC 2 buttons simultaneously, and the head phone detect mode is activated.

9.The message “H_P OFF” is displayed when a headphone jack is not inserted.

“H_P ON ” is displayed when a headphone jack is inserted.

10.Press GAME EQ and DISC 2 buttons simultaneously, and the volume control detect mode is activated.

11.The message “VOLUME FLAT” is displayed.

“VOLUME UP” is displayed if rotating VOLUME knob clockwise, or “VOLUME DOWN” is displayed if rotating counterclockwise.

12.To exit from the GC test mode after the volume control detect mode, press GAME EQ and DISC 2 buttons simultaneously.

[Version and Destination Display Mode]

• The version or destination is displayed.

Procedure:

1.Press ?/1 button to turn the set ON.

2.To enter the test mode, press the three buttons x , GAME EQ and MOVIE EQ simultaneously.

3.The destination is displayed.

4. Press STOP and GROOVE buttons simultaneously.

5.The version is displayed.

6.To exit from this mode, press ?/1 button to turn the set OFF.

[CD Service Mode]

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

Procedure:

1.	Press		?/1	button to turn the set ON.
2.	Select the function “CD”.
3.	To enter the test mode, press three buttons x ,									GAME EQ	,
	and	OPEN/CLOSE			simultaneously.
4.	The CD service mode is selected.
5.	With the CD in stop status, press								button to move the pickup
								>
	to outside track, or press							+
						.	button to inside track.
						–

6.To exit from this mode, perform as follows:

1)Move the pickup to the most inside track.

2)Press ?/1 button to turn the set OFF.

Note: • Always move the pickup 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.

[MC Test Mode]

• This mode is used to test the function of the equalizer.

Procedure:

1.Press ?/1 button to turn the set ON.

2.To enter the test mode, press the three buttons x , GAME EQ and DISC 3 simultaneously.

3.Press the MOVIE EQ button.

The function of the equalizer is set to “MIN”.

4.Press the MUSIC EQ button.

The function of the equalizer is set to “MAX”.

5.Press the P.FILE button.

The function of the equalizer is set to “FLAT”.

6.To exit from this mode, press ?/1 button to turn the set OFF.

[CD Ship Mode (No Memory Clear) ]

•This mode moves the pickup to the position durable to vibration. Use this mode when returning the set to the customer after repair.

Procedure:

1.Press ?/1 button to turn the set ON.

2.Select the function “CD”.

3.Press ?/1 button to turn the set OFF.

4. Press CD button and ?/1 button simultaneously.

5.The "STANDBY" display blinks instantaneously, and the CD ship mode is set.

16

HCD-GX30/RG22/RG33

SECTION 4

ELECTRICAL ADJUSTMENTS

TUNER SECTION

AM IF Adjustment

AM RF Signal generator

	set
30% amplitude
modulation by	AM ANTENNA terminal
400Hz signal	(JK103)
output level : as low as possible
	level meter
	16 Ω
set
	headphones jack (JK691)

Procedure:

1.Set the frequency of the AM RF signal generator to 1000 kHz (at 10 kHz step) or 999 kHz (at 9 kHz step).

2.Tune the set to AM 1000 kHz (at 10 kHz step) or 999 kHz (at 9 kHz step).

3.Adjust IFT101 so that the reading on level meter becomes in maximum.

FM Tuned Level Adjustment

FM RF Signal generator

75 Ω coaxial

Carrier frequency : 98 MHz

Modulation	: AUDIO 1 kHz, 75 kHz
	deviation (100%)
Output level	: 30 dB (at 75 Ω open)

set

FM ANTENNA terminal (JK103)

Procedure:

1.Supply a 98 MHz signal at 28 dB from the ANTENNA terminal.

2.Tune the set to 98 MHz.

3.Adjust RV101 to the point (moment) when the TUNED indicator will change from going off to going on.

Adjustment Location: MAIN board

Null Adjustment

FM RF Signal generator

75 Ω coaxial

Carrier frequency : 98 MHz

Modulation	: AUDIO 1 kHz, 75 kHz
	deviation (100%)
Output level	: 60 dB (at 75 Ω open)

set

FM ANTENNA terminal (JK103)

Procedure:

1.Supply a 98 MHz signal at 60 dB from the ANTENNA terminal.

2.Tune the set to 98 MHz.

3.Measure voltage between pin 21 and pin 23 of IC 101. Adjust T101 until the voltage becomes 0 V.

Adjustment Location: MAIN board

[MAIN BOARD] Component side

T101: NULL

IFT101: AM IF

RV101:

FM TUNED LEVEL

17