SONY HCD-V909AV Service Manual

HCD-V909AV

SERVICE MANUAL

E Model

Chinese Model

HCD-V909AV is the tuner, deck, Video CD and amplifier section in MHC-V909AV.

		Model Name Using Similar Mechanism	HCD-V800
CD
		CD Mechanism Type	CDM38L-5BD21AL
SECTION
		Base Unit Type	BU-5BD21AL
		Optical Pick-up Type	KSS-213D/Q-NP
TAPE		Model Name Using Similar Mechanism	HCD-V800
DECK
		Tape Transport Mechanism Type	TCM-220WR2
SECTION

SPECIFICATIONS

— Continued on next page —

COMPACT DISC DECK RECEIVER

MICROFILM

— 1 —

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.

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.

This caution label is located inside the unit.

MODEL IDENTIFICATION

— BACK PANEL —	• Abbreviation
	SP	: Singapore model
	MY : Malaysia model
	IA	: Indonesian model
	CH	: Chinese model
	TH	: Thai model

MODEL	PARTS No.
MY model	4-991-746-4
TH model	4-991-746-9
E, SP model	4-991-753-0
CH model	4-991-753-1
IA model	4-991-753-2

SAFETY-RELATED COMPONENT WARNING !!

COMPONENTS IDENTIFIED BY MARK !OR DOTTED LINE WITH MARK !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.

NOTES ON HANDLINGTHE 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 repain 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 waveform is output three times.

— 2 —

TABLE OF CONTENTS
1. SERVICING NOTE ..........................................................	3
2. GENERAL ..........................................................................	6
3. DISASSEMBLY
3-1. Back Panel ...........................................................................	7
3-2. Loading Panel .......................................................................	8
3-3. CD Mechanism Deck ............................................................	8
3-4. Front Panel ...........................................................................	9
3-5. TC Mechanism Deck and DECO Board ...............................	9
3-6. HP/MIC Board, Display Board and TC SW Board ............	10
3-7. Disc Tray ...........................................................................	10
4. TEST MODE ..............................................................	11
5. MECHANICAL ADJUSTMENTS ...........................	12
6. ELECTRICAL ADJUSTMENTS ...............................	12
7. DIAGRAMS
7-1. Circuit Boards Location ......................................................	17
7-2. Block Diagrams
• KEY CON Section ...........................................................	18
• CD Section .......................................................................	19
• Video Section ...................................................................	21
• Deck Section ....................................................................	23
• Main Section ....................................................................	25
• Power Section ..................................................................	27
7-3. Printed Wiring Board — CD Section — .............................	29
7-4. Schematic Diagram — CD Section — ...............................	31
7-5. Schematic Diagram — Video Section — ...........................	33
7-6. Printed Wiring Board — Video Section — .........................	37
7-7. Printed Wiring Board — Main Section — ..........................	40
7-8. Schematic Diagram — Main Section — ............................	43
7-9. Schematic Diagram — Deck Section — ............................	47
7-10. Printed Wiring Board — Deck Section — .......................	51
7-11. Schematic Diagram — Panel Section — .........................	54
7-12. Printed Wiring Board — Panel Section — .......................	57
7-13. Schematic Diagram — Power Section — ........................	61
7-14. Printed Wiring Board — Power Section — .....................	65
7-15. Schematic Diagram — CD Motor Section — ..................	68
7-16. Printed Wiring Board — CD Motor Section — ...............	69
7-17. Schematic Diagram — KEY CON Section — .................	71
7-18. Printed Wiring Board — KEY CON Section — ..............	72
7-19. IC Block Diagrams ...........................................................	73
7-20. IC Pin Functions ...............................................................	80
8. EXPLODED VIEWS
8-1. Case Section ........................................................................	97
8-2. Main Board Section ............................................................	98
8-3. Panel Board Section ............................................................	99
8-4. Front Panel Section ...........................................................	100
8-5. TC Mechanism Section 1 (TCM-220WR2) ......................	101
8-6. TC Mechanism Section 2 (TCM-220WR2) ......................	102
8-7. CD Mechanism Section 1 (CDM38L-5BD29AL) ............	103
8-8. CD Mechanism Section 2 (CDM38L-5BD29AL) ............	104
8-9. Base Unit Section (BU-5BD29AL) ..................................	105
9. ELECTRICAL PARTS LIST ......................................	106

SECTION 1

SERVICING NOTE

HOW TO OPEN THE DISC TRAY WHEN POWER SWITCH TURNS OFF

1 Remove the Case.

2 Remove the Back panel.

3 Turn the cam to the direction of arrow.

4 Pull-out the disc tray.

Note for Installation (ROTARY ENCODER)

Note : When attaching the Base unit. insert the section A into the groove of BU cam.

BU cam

Section A

groove

Note : When attaching the BU cam, engage the Rotary encoder switch as shown in the figure.

— 3 —

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 NEXT , ENTER/NEXT , and DISC 1 simultaneously.

2.The fluorescent indicator tube becomes blank instantaneously, and the set is reset.

CD Delivery Mode

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

Procedure:

1.Press POWER button to turn the set ON.

2.Press PLAY MODE button and POWER button simultaneously.

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

MC Hot Reset

• This mode resets the set with the preset data kept stored in the memory. The hot reset mode functions same as if the power cord is plugged in and out.

Procedure:

1.Press three buttons NEXT , ENTER/NEXT , and DISC 2 simultaneously.

2.The fluorescent indicator tube becomes blank instantaneously, and the set is reset.

Sled Servo 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 NEXT , ENTER/NEXT , and FUNC-

TION 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 ) button in CD section to move the pick-up to outside track, or 0 button to inside track.

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

1)Move the pick-up to the most inside track.

2)Press three buttons in the same manner as step 2.

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 POWER button to turn the set OFF.

2.Press POWER button together with FUNCTION button, 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.

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

• A step of AM channels can be changed over between 9kHz and 10kHz.

Procedure:

1.Press POWER button to turn the set ON.

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

3.Press POWER button to turn the set OFF.

4.Press ENTER/NEXT and POWER buttons simultaneously, and the display of fluorescent indicator tube changes to “9k STEP” or “10k STEP”, and thus the channel step is changed over.

LED and Fluorescent Indicator Tube All Lit, Key Check

Mode

Procedure:

1.Press three buttons NEXT , ENTER/NEXT , and DISC 3 simultaneously.

2.LEDs and fluorescent indicator tube are all turned on. Press DISC 2 button, and the key check mode is activated.

3.In the key check mode, the fluorescent indicator tube displays

“K 1 V0 J0”. Each time a button is pressed, “K”value increases. However, once a button is pressed, it is no longer taken into account.

“J” Value increases like 1, 2, 3 ... if rotating JOG knob in “+” direction, or it decreases like 0, 9, 8 ... if rotating in “–” direction.

“V” Value increases like 1, 2, 3 ... if rotating VOLUME knob in “+” direction, or it decreases like 0, 9, 8 ... if rotating in “–” direction.

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

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.

• If no error occurs:

The aging operation continues repeatedly.

1. Aging Mode in CD Section

1-1. Operating procedure of Aging Mode

1.Set discs in DISC 1 and DISC 2 trays.

2.Select the function “CD”.

3.Press three buttons NEXT , ENTER/NEXT , and KARAOKE PON/MPX simultaneously.

4.The aging mode is activated, if a roulette mark on the fluorescent indicator tube is blinking.

5.In the aging mode, the aging is executed in a sequence given in “1-2. Operation during Aging Mode”.

The aging continues unless an alarm occurred.

6.To exit from the aging mode, press POWER button to turn the set OFF.

∙If a button other than buttons In CD section is pressed during aging, the aging in the CD section is finished.

∙To execute aging to the tape deck section successively, press á button in the deck A.

“AGING” is displayed on the fluorescent indicator tube. (For the aging in tape deck, see “2. Aging Mode in Tape Deck Section”.

1-2. Operation during aging Mode

In the aging mode, the program is executed in the following sequence.

1.The disc table is ejected.

2.The disc tray turns to select a disc. (For a disc selection sequence, see Section 1-3.)

3.TOC of disc is read.

4.The pick-up accesses to the last track.

5.Disc table is ejected.

6.Steps 2 through 5 are repeated.

— 4 —

1-3. Disc Selection Sequence

∙During the aging mode, discs are selected in the following sequence:

Disc 1 → Disc 2

− ↓

Disc 2 ← Disc 1

2.Aging Mode in Tape Deck Section

2-1. Operating procedure of Aging Mode

1.Load a commercially available 10-minute tape into the decks A and B respectively.

(If a 10-minute tape is not available, another tape may be used but a cycle time will be longer.)

2.Select the function “TAPE”.

3.Rewind tapes in advance by pressing 0 button respectively on decks A and B.

4.Press three buttons NEXT , ENTER/NEXT , and KARAOKE PON/MPX simultaneously.

5.Press á button on deck A. (This button triggers the aging mode.)

6.The aging mode is activated if “AGING A” is displayed on the fluorescent indicator tube.

7.In the aging mode, the aging is executed in a sequence given in “2-2. Operation during Aging Mode”.

The aging continues unless an alarm occurred.

8.To exit from the aging mode, press POWER button to turn the set OFF.

2-2. Operation during Aging Mode

In the aging mode, the program is executed in the following sequence.

1.A tape on FWD side is played for one minute.

2.PAUSE STOP is made.

3.Recording is made for 3 minutes. (For the deck not having the record function, the play is executed. In this case, á LED does not light up.)

4.FF is executed up to the end of tape.

5.A tape is reversed, and the tape on REV side is played for one minute.

6.PAUSE STOP is made.

7.Recording is made for 3 minutes. (For the deck not having the record function, the play is executed. In this case, » LED does not light up.)

8.FF is executed up to the end of tape.

9.Steps 1 through 8 are executed for the other deck.

10.Steps 1 through 9 are repeated unless an alarm occurred.

2-3. Deck Selection Sequence

• During the aging mode, decks are selected in the following sequence:

Deck A (FWD) → Deck A (REV) − ↓

Deck B (REV) ← Deck B (FWD)

SELF-DIAGNOSIS

This model has the self-diagnosis function for the VIDEO and AUDIO decoder sections.

Immediately after the power on, the self-diagnosis function searches each operation of IC’s around the mechanism control microcomputer (IC701).

The results can be checked by connecting an oscilloscope to TP709 (LED) of theVIDEO board.

Oscilloscope (Waveform)

Symptom

H

No error

L

Light

H

External SRAM (IC751) L error

1 time blinking

H

MPEG decoder (IC201) L error

2 time blinking

H

DRAM (IC251) error

L

3 time blinking

oscilloscope

VIDEO board

TP709 (LED) +

–

Note: The LED for check (D701) is mounted to some sets (FORMER TYPE). In this case, confirm the lighting condition of LED.

[VIDEO BOARD] (SIDE A)

D701

IC771

[VIDEO BOARD] (SIDE B)

X901

TP709 (LED)

IC751

IC251

— 5 —

SECTION 2

GENERAL

Front Panel

1

2

3

4

5

6

7

8	9	10 11	12	13 14		15		16	17	18	19	20		21
50
49														22
48
47
46
45
44														23
43
42														24
41
40
39	38	37	36	35	34		33	32	31	30	29 28	27	26	25
	51		52	53			54			55	56		57	58

62

59

61

60

— 6 —

LOCATION OF PARTS AND CONTROLS

1	POWER button	22	FUNCTION button	43	MUSIC button
2	DISC SKIP EX-CHANGE button	23	TUNER MEMORY button	44	P FILE button
3	CD 0, )button	24	TUNER/BAND button	45	P FILE MEMORY button
4	DISC1-DISC3 buttons	25	STEREO/MONO button	46	SLEEP button
5	CD pbutton	26	TUNING MODE button	47	CLOCK/TIMER SET button
6	¤OPEN/CLOSE button	27	EFFECT ON/OFF button	48	AUTO PBC indicator
7	CD á¸button	28	DBFB button	49	PBC indicator
8	VCD indicator	29	DSP button	50	TIMER SELECT button
9	PREV button	30	ENTER/NEXT button	51	Deck A », ábutton
10	DISPLAY/DEMO button	31	PROLOGIC button	52	Deck A 0, )button
11	NEXT button	32	GROOVE button	53	HIGH SPEED DUBBING button
12	DIRECTION button	33	GAME button	54	CD SYNCHRO button
13	RETURN button	34	FLASH button	55	rREC button
14	1/ALL DISCS button	35	MOVIE button	56	P (PAUSE) button
15	SELECT button	36	ECHO LEVEL knob	57	Deck B 0, )button
16	PLAY MODE button	37	LOOP button	58	Deck B », ábutton
17	LOW FREQUENCY button	38	MIC LEVEL knob	59	Deck B pbutton
18	JOG dial, indicator	39	MIX MIC jack	60	Deck B 6button
19	HIGH FREQUENCY button	40	PHONES jack	61	Deck A 6button
20	KARAOKE PON/MPX button	41	WAVE button	62	Deck A pbutton
21	VOLUME control	42	NON-STOP button

SECTION 3

DISASSEMBLY

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

3-1. BACK PANEL

5 Connector (CN9001)

6Flat type wire (15 core)

1Three screws (+BVTP3x8)

2 Four screws (+BVTP3x8)

3 Three screws (+BVTP3x8)

4 Four screws (+BVTP3x8)

8 Back panel

Installing the power cord for the

Chinese model.

Power transformer

7Connector (CN961)

Bushing cord

Ferrite core

Wire clamp

— 7 —

3-2. LOADING PANEL

3 Loading panel

Two claws

1 Turn the cam to the direction of arrow

2 Pull-out the

disc tray.

3-3. CD MECHANISM DECK

7 CD mechanism deck

2Connector (CN830)

3 Connector

(CN820)

6 Connector

(CN901)

1 Flat type wire (13 core)

4Screw (+BVTP3x8)

5 Screw

(+BVTP3x8)

— 8 —

3-4. FRONT PANEL

1 Connector

(CN402)

	2 Connector
6 Front panel assembly	(CN401)

3 Connector

(CN701)

Two claws

4 Two screws (+BVTT3x6)

5 Three screws (+BVTT3x6)

3-5. TC MECHANISM DECK AND DECO BOARD

1 Push the buttons (EJECT) 4 and 5.
9 Flat type wire (5 core)	3 TC mechanism deck
	8 DECO board

5 Button (EJECT)

Claws

6 Cassette lid (A) assembly

2Three screws (+BVTP2.6x8)

4 Button (EJECT)

7 Cassette lid (B) assembly

— 9 —

3-6. HP/MIC BOARD, DISPLAY BOARD AND TC SW BOARD

7 Seven screws	8 Nine screws
(+BVTP2.6x8)	(+BVTP2.6x8)

6 Flat type wire (10 core)

!£ Display board

1 Two screws

(+BVTP2.6x8)

2 Bracket (HP)

3 HP/MIC board	9 Two claws

0 Two claws

5 Nut

3-7. DISC TRAY

(Perform after removing the front panel.)

3 Flat type wire (8 core)

!¢ Seven screws

(+BVTP2.6x8)

!¤ TC SW board

!¦ Connector

(CN607)

!° Two claws

!ª Claw

!Á Two claws

4 Knob (Vol)

Note: When installing the Disc tray, pull around the flat type wire to pass through the claw A and claw B, as shown in the figure.

4 Push the claws

2 Pull-out the disc tray.

5 Remove the disc tray.

Claw B

Claw A

1Turn the cam to the direction of arrow.

— 10 —

SECTION 4 TEST MODE

VIDEO CD COLOR-BARS MODE

On this mode, the data of the color-bars signal as a picture signal and the 1kHz sine wave signal as a sound signal are output by the mechanism control microcomputer (IC701) for video CD signal check. When measurement of the voltage and waveform on the VIDEO board, perform it in this mode.

For refernce, the color-bars signal can be observed at J9001 (VIDEO OUT) and the sound signal can be observed at J101 (VIDEO/MD (AUDIO) OUT) using an oscilloscope.

1.Connect the lead wire to both ends of the land of SL701 (CAL BAR) of the VIDEO board.

2.Turn the power on. Press FUNCTION button to select CD.

3.After 2 or 3 seconds later, connect the lead wire.

4.After measuring, remove the lead wire connected.

NOTE:

The 1 kHz sine wave is not outputted when the CD is played once, but it is not error.

E-F BALANCE MODE

• Refer to SECTION 6 ELECTRICAL ADJUSTMENTS page 15.

1.Connect the lead wire to both ends of the land of SL702 (ADJ) and SL703 (AFADJ) of the VIDEO board.

2.Turn the power on. Press FUNCTION button to select CD.

3.Short-circuit the lead wire. (At this time, “DISC” on the fluorescent indicator tube will blink (test mode). If it is not blinking, perform from step 1 again.)

4.Press the á button in playback.

5.Every pressing the REPEAT button, the tracking servo and the sledding servo are turned on or off.

6.When the servo is OFF, the counter on front panel will not be changed.

7.After measuring, remove the lead wire connected step 1.

[VIDEO BOARD] (SIDE B)

SL703 (AFADJ)

SL702 (ADJ)

IC751

IC251

SL701 (CAL BAR)

— 11 —

SECTION 5

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

	Torque	Torque meter	Meter reading
	FWD	CQ-102C	36 to 61 g • cm
			(0.5 - 0.84 oz • inch)
	FWD	CQ-102C	2 to 6 g • cm
	back tension		(0.02 - 0.08 oz • inch)
	REV	CQ-102RC	36 to 61 g • cm
			(0.5 - 0.84 oz • inch)
	REV	CQ-102RC	2 to 6 g • cm
	back tension		(0.02 - 0.08 oz • inch)
	FF/REW	CQ-201B	61 to 143 g • cm
			(0.85 - 1.99 oz • inch)
	FWD tension	CQ-403A	100 g or more
			(3.53 oz or more)
	REV tension	CQ-403R	100 g or more
			(3.53 oz or more)

SECTION 6

ELECTRICAL ADJUSTMENTS

DECK SECTION		0 dB=0.775V

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

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

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

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.

Tape	Signal	Used for
P-4-A100	10 kHz, –10 dB	Azimuth Adjustment
WS-48B	3 kHz, 0 dB	Tape Speed Adjustment
P-4-L300	315 Hz, 0 dB	Level Adjustment

NOTE:

Set the test mode by following step before performing the adjustment of “DECK SECTION”. All effects for the output signal are canceled. If the adjustment is not performed in this test mode, you cannot adjust correctly.

Procedure :

With the power turned ON, press the NEXT button, ENTER/NEXT button, and EFFECT ON/OFF button simultaneously.

(The “VOLUME” on the fluorescent display tube will blink while in the test mode.)

To exit the test mode, press the POWER button.

Record/Playback Head Azimuth Adjustment

(Deck A, Deck B)

Note: Perform this adjustments for both decks.

Procedure:

1. Mode : Playback

test tape
P-4-A100
(10kHz, –10dB)	level meter
	VIDEO/MD
set	(AUDIO) OUT
	+
	–

— 12 —

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 1 dB of peak.

L-CH	output
peak		within
	level
		1 dB		within 1dB
	R-CH
screw	peak
position				screw
		L-CH	R-CH
				position
		peak	peak

3. Mode: Playback

test tape P-4-A100 (10kHz, –10dB)

VIDEO/MD
(AUDIO) OUT	oscilloscope
GND
L
set
R

Waveform of oscilloscope

in phase 45°	90°	135° 180°
good		wrong

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

Adjustment Location: Playback Head (Deck A)

Record/Playback/Erase Head (Deck B)

forward

reverse

Tape Speed Adjustment (Deck A)

Note: Set the test mode using the following method and begin tape speed adjustment.

In the test mode, the tape will move at double speed while the HIGH SPEED DUBBING button is pressed.

Procedure :

With the power turned ON, press the NEXT button, ENTER/ NEXT button, and EFFECT ON/OFF button simultaneously.

(The “VOLUME” on the fluorescent display tube will blink while in the test mode.)

To exit the test mode, press the POWER button.

1.Load WS-48B into deck A and a recordable tape into deck B.

2.Press the rREC button, and press the á button of deck B to set deck B into the recording state.

3.Play deck A.

4.While pressing the HIGH SPEED DUBBING button, set double speed play.

5.Adjust RV652 of the AUDIO board so that the reading of the frequency counter becomes 6000 ± 90 Hz.

6.Release the HIGH SPEED DUBBING button to set normal speed play.

7.Adjust RV651 of the AUDIO board so that the reading of the frequency counter becomes 3000 ± 90 Hz.

Adjustment Location: AUDIO board

Sample Value of Wow and flutter

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

Playback Level Adjustment (Deck A, Deck B)

Procedure:

test tape P-4-L300 (315Hz, 0dB)

level meter

set

VIDEO/MD (AUDIO) OUT

Mode: Playback

Deck A is RV311 (L-CH) and RV411 (R-CH), deck B is RV301 (L-CH) and RV401 (R-CH)

so that adjustment within the following adjustment level.

Adjustment level:

J101 playback level: 301.5 to 338.3 mV (–8.2 to –7.2 dB) level difference between the channels: within ± 0.5 dB

Adjustment Location: AUDIO board

— 13 —

Record Bias Adjustment (Deck B)

Procedure:

INTRODUCTION

When set to the test mode performed in Tape Speed Adjustment, when the tape is rewound after recording, the “REC memory mode” which rewinds only the recorded portion and playback is set.

This “REC memory mode” is convenient for performing this adjustment. During recording, the input signal FUNCTION will automatically switch to VIDEO.

1.Press FUNCTION button to select VIDEO. (This step is not necessary if the above test mode has already been set.)

2.Load a tape into deck B, and press the rREC button.

3.Mode: Record

VIDEO/MD (AUDIO) IN

1)315Hz } 50 mV (–23.8 dB)

2)10kHz

	AF OSC	blank tape
	600 Ω
		CS-123
	attenuator
		set

4. Mode: Playback

recorded	level meter
position
	set
	VIDEO/MD
	(AUDIO) OUT

Record Level Adjustment (Deck B)

Procedure:

INTRODUCTION

When set to the test mode performed in Tape Speed Adjustment, when the tape is rewound after recording, the “REC memory mode” which rewinds only the recorded portion and playback is set.

This “REC memory mode” is convenient for performing this adjustment. During recording, the input signal FUNCTION will automatically switch to VIDEO.

1.Press FUNCTION button to select VIDEO. (This step is not necessary if the above test mode has already been set.)

2.Load a tape into deck B, and press the rREC button.

3.Mode: Record

VIDEO/MD (AUDIO) IN 315Hz 50 mV (–23.8 dB)

	AF OSC	blank tape
	600 Ω
		CS-123
	attenuator
		set

4. Mode: Playback

recorded	level meter
position
	set
	VIDEO/MD
	(AUDIO) OUT

5.Confirm playback the signal recorded in step 2 become adjustment level as follows.

If these levels do not adjustment level, adjust the RV341 (L- CH) and RV441 (R-CH) on the AUDIO board to repeat steps 3 and 4.

Adjustment level: The playback output of 10 kHz level difference against 315 Hz reference should be ± 1.0 dB.

Adjustment Location: AUDIO board

5.Confirm playback the signal recorded in step 2 become adjustment level as follows.

If these levels do not adjustment level, adjust the RV301 (L- CH) and RV351 (R-CH) on the MAIN board to repeat steps 3 and 4.

Adjustment level:

CN403 playback level: 47.2 to 53.0 mV (–24.3 to –23.3 dB)

Adjustment Location: MAIN board

		RV301
Adjustment Location	[MAIN BOARD] (Component Side)	Record Level (L CH)
[AUDIO BOARD] (Conductor Side)

RV341 (Lch), RV441 (Rch)
Record Bias				IC401
RV301		RV651 (Normal Speed)	RV651 RV652
RV401		RV652 (High Speed)
		Tape Speed		RV351
RV441	RV341		RV311	Record Level
				(R CH)
RV301 (Lch), RV401 (Rch)			RV411
Playback Level (Deck B)		RV311 (Lch), RV441 (Rch)
		Playback Level (Deck A)

— 14 —

CD SECTION

NOTE :

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

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

3.Use an oscilloscope with more than 10MW 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 (VC)	–

Procedure :

1.Connect oscilloscope to test point TP (FE) on BD board.

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

3.Turned Power switch on.

4.Put disc (YEDS-18) in and turned Power switch on again and actuate the focus search. (actuate the focus search when disc table is moving in and out.)

5.Check the oscilloscope waveform (S-curve) is symmetrical between A and B.

And confirm peak to peak level within 3±1 Vp-p.

S-curve waveform

symmetry

A

Within 3 ± 1 Vp-p

B

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 (RF)	+
TP (VC)	–

Procedure :

1.Connect oscilloscope to test point TP (RF) on BD board.

2.Turned Power switch on.

3.Put disc (YEDS-18) in to play the number five track.

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

Note : A clear RF signal waveform means that the shape “ à” can be clearly distinguished at the center of the waveform.

RF signal waveform

VOLT/DIV : 200mV

TIME/DIV : 500ns

level : 1.3 +0.25–0.20 Vp-p

E-F Balance (1 Track Jump) check (Without remote commander)

oscilloscope

BD board
TP (TE)	+
TP (VC)	–

Procedure:

1.Connect oscilloscope to test point TP (TE) on BD board.

2.Turned Power switch on. Press FUNCTION button to select CD.

3.Put disc (YEDS-18) in to play the number five track.

4.Press the “ P(Pause)” button.

5.Check the level B of the oscilloscope's waveform and the A (DC voltage) of the center of the Traverse waveform.

Confirm the following:

•A/B x 100 = less then ± 22 (%)

1 track jump waveform

Center of the waveform

B

A (DC voltage)

0V

Symmetry

level : 1.3 ± 0.6 Vp-p

E-F Balance (Traverse) Check (With remote commander)

oscilloscope

BD board
TP (TE)	+
TP (VC)	–

Procedure :

1.Connect oscilloscpe to test point TP (TE) on BD board.

2.Connect the lead wire to both ends of the land of SL702 (ADJ) and SL703 (AFADJ) of the VIDEO board.

3.Turned Power switch on. Press FUNCTION button to select CD.

4.Short the lead wire.

5.Put disc (YEDS-18) in to play the number five track.

6.Press the REPEAT button. (The tracking servo and the sledding servo are turned OFF.)

— 15 —

7.Check the level B of the oscilliscope's waveform and the A (DC voltage) of the center of the Traverse waveform.

Confirm the following : A/B x 100 = less than ± 22%

Traverse waveform

	Center of the waveform
	B
0V	A (DC voltage)
	level : 1.3 ± 0.6 Vp-p

8.Press the REPEAT button. (The tracking servo and sledding servo are turned ON.) Confirm the C (DC voltage) is almost equal to the A (DC voltage) is step 7.

Traverse waveform

	C (DC
0V	voltage)
Tracking servo	Tracking servo
Sled servo	Sled servo
OFF	ON

9. Remove the lead wire connected step 1.

Adjustment Location :

[ BD BOARD ] — SIDE A —

1 20

(FE)

IC103 (RF)

(FEI)

1011 (TE) (VC)

(PLCK)

IC101

RF PLL Free-run Frequency Check

Procedure :

1. Connect frequency counter to TP (PLCK) with lead wire.

frequency counter

BD board
TP (PLCK)	+
	–

2.Turned Power switch on.

3.Put the disc (YEDS-18) in to play the number five track. Confirm that reading on frequency counter is 4.3218MHz.

VIDEO SECTION

Frequency adjustment

1.Connect the frequency counter to check point of the VIDEO board.

2.Adjust CT401 of the VIDEO board so that the frequency counter read 13.5MHz ± 40Hz at STOP condition.

frequency counter

VIDEO board

TP410 (DCLK)

+

–

[ VIDEO BOARD ] — SIDE B —

SL703 (AFADJ)

SL702 (ADJ)

CT401

Frequency

IC751

IC251

SL701 (CAL BAR)

TP410 (DCLK)

— 16 —

SECTION 7

DIAGRAMS

7-1. CIRCUIT BOARDS LOCATION

CD SW board

PANEL board (including pB)

HP/ MIC board

TC SW board

pB

CONNECTOR board

SENSOR board

VIDEO OUT board

ENCAPSULATED

COMPONENT

KEY CON board

Note: pA is including in AUDIO board. pB is including in PANEL board.

MAIN board

DECO board

SURROUND board

TRANS board

pA

MOTOR board

LEAF SWITCH board

POWER board

AUDIO board (including pA)

MOTOR (TURN) board

BD board

VIDEO board

MOTOR (SLIDE) board

VIDEO POWER board

— 17 —

HCD-V909AV

7-2. BLOCK DIAGRAMS

— KEY CON SECTION —

	MIC AMP		ECHO AMP
J751	IC750 (1/2)		IC750 (2/2)
MIX MIC	3	1	6	7
			RV750
			MIC LEVEL
				ECHO
				IC751

1	2	9		8
LPF1			LPF2	RV751
				ECHO LEVEL

			SWITCH
			IC1403
			5	4	L IN
			3
KEY CONTROL			9	10 11
IC1401
LPF1		MIX	Q1401		K CON
IN		OUT	15
22
Rch	CLOCK	STORBE			A
					MAIN
DATA
					SECTION
7	8	9			(Page 25)
					LATCH
					CLK
					DATA
					L OUT

09

• R CH : Same as Lch

• Signal path

: FM : MIC

— 18 —

HCD-V909AV

— CD SECTION —

OPTICAL PICK-UP

BLOCK (KSS-213D/Q-NP)

DIGITAL SERVO

RF AMP

LASER

DIGITAL SIGNAL PROCESSOR

IC103

IC101

62

DIODE

LD

XTAL

PD

POWER

LDON

2

APC LD

PRIORITY

AMP

+5V

384FS

EMCODER

MD2

LD

LD

19

70

IC841

DRIVE

1

ADDRESS

DOUT

CLOCK

71

1

Q101

GENERATOR

DIGITAL

EXCK

GENERATOR

OUT

SUBCODE

76

CD

32K

P-W

SBSO

ASY0

PROCESSOR

75

DIGITAL OUT

DETECTOR

39

RAM

OPTICAL

E

PEAK

SUBCODE

SUBQ

77

SUBQ

RF

Q

3

INTEGRATOR

BUS

DETECTOR

SQCK

4

RF

PROCESSOR

78

SQCK

A

C

4

RF FQ

RF AC

16

36

SCLK

SUMMING

DATA

83

SCLK

B

D

5

AMP

AMP

6

D/A

ASY1

ASYMMETRY

EFM

SERIAL/PARALLEL

F

38

MIX

REGISTER

DATA

CORRECTION

DEMODULATOR

PROCESSOR

PROCESSOR

FOCUS

ERROR

15

AMP

DIGITAL

PLL

DATA

46

ADATA

SYNC

1

PROTECTOR

ERROR

LRCK

45

LRCK

BCLK

47

BCK

CORRECTOR

TRACKING

8

13

ERROR

FOK

SCOR

9

MIRR

TIMING

74

SCOR

B

AMP

WFCK

DFCT

DFCT

GENERATOR 1

73

VC

FOK

MIRR

10

11

DETECTOR

DATA

DATA

CPU

86

VIDEO

CLV SERVO

TIMING

XLT

87

XLT

VC

INTERFACE

CLK

SECTION

VC

SERVO DSP

PROCESSOR

GENERATOR 2

88

CLK

(Page 21)

12

BUFFER

26

RF DC

FOCUS

SERVO

SENS

TE

SERVO

AUTO

80

SENS

27

A/D

TRACKING

1B TIMS

SEQUENCER

SE

OVERSAMPLING

C2PO

56

C2PO

INTE-

28

CONVERTER

SERVO

FILTER

SERVO

GRATOR

FE

INTERFACE

29

SLED

SERVO

FOCUS/TRACKING COIL DRIVE

NOISE

SPINDLE/SLED MOTOR DRIVE

SHAPER

FOK

93

IC102

DFCT

92

T+

PWM

MIRR

91

1

GENERATOR

TRACKING

TFDR

TRACKING

COIL

T–

4

4

MUTE

S STOP

XRST

81

XRST

2

TRDR

PWM

GFS

5

6

F+

GENERATOR

16

79

54

99

FOCUS

FFDR

FOCUS

COIL

F–

19

8

17

FRDR

PWM

20

10

GENERATOR

AMUTE

M102

13

S901

SLED

M

10

2

SRDR

SLED

LIMIT

MOTOR

12

SFDR

SWITCH

PWM

9

100

+5V

M701

GENERATOR

7

OUT1

IN1

3

TBL.L

M101

27

TURN

M

2

OUT2

TURN

IN2

6

TBL.R

SPINDLE

M

MOTOR

23

MOTOR DRIVER

MOTOR

26

MDP

IC701

24

96

• R CH: Same as L ch

• SIGNAL PATH

: CD

M801

: VIDEO

MUTE 15

4

OUT2

RIN

2

LOAD IN

SLIDE

M

: CD (Digital)

MOTOR

7

OUT1

SLIDE

FIN

10

LOAD OUT

MOTOR DRIVER

C

IC801

TABLE

S801

SENSOR

OPEN/CLOSE

OPEN

IC702

MAIN

DET

SECTION

DISC

T. SENS

(Page 25)

SENSOR

DISC SENS

IC703

Q701

ROTARY

ENC-1

09

ENCODER

ENC-2

S811

ENC-3

— 19 —

— 20 —

HCD-V909AV

— VIDEO SECTION —

10BIT VIDEO D/A CONVERTER

IC401

MPEG DECODER

NOISE REDUCTION

VIDEO AMP

IC201

IC301

J9001

IC451

VIDEO OUT

BUFFER

71

1

1

V

24

5

7

IC501 (1/2)

Y0-Y7

60

Y, C/Y, U, V

Y

74

4

Y

4

LPF

BCK

9

11

112

MPEG

MPEG

VIDEO

•

•

67

•

DEMPX, LEVEL

MODULATOR

SELECTOR

B

ADATA

8

12

111

CD-ROM

76

6

RGB-YUV

NOISE

YUV-RGB

6

&

Y

SYSTEM

VIDEO

POSTPROCESSOR

80

9

9

TRANSLATOR

LPF

29

5

7

LRCK

7

13

110

DECODER

&

CONV.

REDUSER

CONV.

&

INTER-

DECODER

DECODER

C0-C7

POLATOR

C2PO

6

14

109

SYNC GENERATOR

C

63

11

C

51

11

INTERPOLTATOR

C

32

3

1

4

3

DELAY

CD

70

18

58

18

384FS

XSGRST

SECTION

5

15

103

97

Y/C AMP

J9002

(Page 20)

ADATA

100

MPEG

95

HSYNC

TIMING

DRAM

CLOCK GENARATOR

SYNC

SUB

CLOSED

IC452

S VIDEO OUT

92

LRCK

AUDIO

VSYNC

IC402

SLOPE

CARRIER

CAPTION

101

93

GEN.

BCLK

DECODER

FID

3

4

5

6

GEN.

GEN.

ENCODER

102

94

MEMORY

56

DCLK

89

CONT.

XOSDEN

NR-XCS

56

29

SYNC GEN.

SIO & I2O-BUS

OSD B

MCLK

1/2

2

XTL0O

57

IF

X401

X202

OSD G

DCLKI

30

&

CONT.

58

31

MDATA

27MHz

TIMING CONT.

XRST

28.63636MHz

3

XTL01

EACH CIRCUIT BLOCK

59

OSD R

CT401

98 97 100

13.5MHZ

57

55

51

62

59 60

48 49 50

106 XTL2O

X201

D-RAM INTERFACE

HOST INTERFACE

118

XRST

HSYNC VSYNC DCLKI

XVRST

VSYNC HSYNC

DCLK

45.1584MHz

107 XTL2I

FID

XLAT

38–43 •46–55 17–21 •23 •24 •32 •33

34 35 37

7–13• 16

5•6 • 119 •120 114 116 115 117

-

DATA

CLK VDAC

D0

A0

OSD

D7

A3

XHIRQ

RESET

XHCS XWR XHDT

IC271

4

OSD B

18

DATA INPUT

MDATA

16 15 30 31

OSD G

OUTPUT

VIDEO

3

2–5 •7–10 •35–38 •40–43

18–21•24–28

17

SHIFT

OS-XLAT

OSD R

CONT.

RAM

2

DQ1

DQ16

A0

A8

RAS W

UCAS

LCAS

16

RESISTOR

MCLK

1

XOSDEN

15

• R CH: Same as L ch

DISPLAY

D-RAM

VSYNC

19

SYNC

DATA

• SIGNAL PATH

POSITION

CONT.

SEL.

: VIDEO

IC251

CONT.

: Y

HSYNC

20

OSC

: CHROMA

: CD

8

CLOCK

DCLK

1

CK 1/2 Q 5

6.75MHz

GENERATOR

IC272

DIGITAL FILTER & D/A CONVERTER

IC101

S-RAM

IC751

XTCS

384FS

TIMING

CLOCK

21

X101

6

CIRCUIT

GENERATOR

33.8688MHz

22

I/O1

I/O8

A12

CE1

IC772

A0

OE

WE

BUFFER

ACTIVE LPF

IC181

11–13•15–19

2–10 •21 •23–25 22

20 27

IC102

ADATA

2

13

11

11

27

1

6

7

3

25

LRCK

D/A

8

6

4

6

12

INPUT

PLM

CONV.

16

BCLK

R CH

1

3

10

18

10

9

5

4

DATA

11

3

384FS

CLK

DATA

AMUTE

3

CLK

MUTE

12

13

1

2

4

MODE

IC501

4

16

DF-XLAT

CIRCUIT

5

(2/2)

IC771

13 – 20

21–29 • 31–35

55

41

40

54

56 43 70

7

8

47 48 49 68

AMUTE

2

384FS

DATA

73

DATA

CMD0

1

34

CMD0

1

CLK

78

CLK

D0

D7

A0

A12

RD

A18

A17

AS

WR WAIT

XHIRQ

VDACXLAT-

XLATDF-

CMD1

2

35

CMD1

MDATA MCLK OSXLATNRXCS-

INT

AMUTE

74

AMUTE

CMD2

3

36

CMD2

B

SQCK

11

SQCK

CMD3

4

37

CMD3

SUBQ

10

SUBQ

SACK

5

44

SACK

IIC INTERFACE

SCLK

77

SCLK

MECHA CONTROL

QINT

6

18

QINT

IC901

XLT

76

XLT

IC701

MREQ

72

43

MREQ

CD

L CH

LDON

75

LDON

S9001

SECTION

15

XRST

D

SCOR

71

SCOR

SYSTEM SELECT

RESET

XRST

(Page 20)

CD-XRST

64

IIC-DATA

55

IIC-DATA

SENS

62

SENS

EXTAL

XTAL

NPIN

PAL

IIC-CLK

56

IIC-CLK

XRST

48

RESET

AUTO

X2

X1

MAIN

51

52

52

10

11

NTSC

SECTION

X701

X901

(Page 25)

10MHz

5MHz

09

— 21 —

— 22 —

HCD-V909AV

— DECK SECTION —

S1004

S1008

PB A/B

A CrO2

B CrO2

CN403

RV311

3

R CH

12

13

15

IC611

PLAYBACK

1

PB-A/B

A 120/70

B 120/70

LEVEL

L

DECK A

70

A IN

PAS

2

PB OUT

HP101

8

PB L

4

B IN

120

PB HEAD

R CH

DOL

LM ON/ 20

LM ON/OFF

(DECK A)

R

DECK PROCESS DOLBY NR

OFF

NORM/

RV301

IC401

HIGH

14

NORM/HIGH

IC601

PLAYBACK

NR ON/

18

NR ON/OFF

LEVEL

OFF

L

DECK B

RV301

19

REC/PB/PASS

PB

REC/PB HEAD

REC LEVEL

RECOUT

DOLBY

(DECK B)

10

RIN

R

R CH

TYPE B

6

REC L

11

EQOUT

EQIN

10

BIAS SW

BIAS ON/OFF

16

BIAS ON/OFF

NORM

CROM

RM ON/OFF

17

RM ON/OFF

3

1

24 25

IC602

P

R

RELAY REC/PB

HRPE101

4

REC/PB

CAP M SWITCH

RV341

CAP M ON/OFF

Q405, 407

REC

+7.5V

BIAS

Q623, 901

M1

SPEED

SWITCH

CAPSTAN

M

CONTROL

CAP M H / L

Q406

MOTOR

Q651

E

REC BIAS

ERASE BIAS

BIAS OSC

T621, Q621, 622

ERASE HEAD X						MAIN
	RV651	RV652				SECTION
					REEL	(Page 25)
	NORMAL	HIGH
					DETECT	A SHUT
	SPEED	SPEED
					Q1001
					REEL
					DETECT	B SHUT
					Q1002
• R CH : Same as L ch					S1001 (A PLAY)
			+5V			A PLAY
• SIGNAL PATH					S1002 (B PLAY)	B PLAY
: PB (DECK A)
: PB (DECK B)			S1003			A HALF
: REC (DECK B)			(A HALF)
					+5V
			S1005
			(REC A)
09			S1006
			(B HALF)			BHALF
			S1009
			(REC B)
			VZ	4	SWITCH	TRIG H / L
					Q408, 409
2	OUT1	TRIGGER
M2		MOTOR
TRIGGER M			IN2	6		B TRIG
		DRIVE
MOTOR	OUT2	IC402
10
			IN1	5		A TRIG

— 23 —

— 24 —

HCD-V909AV

— MAIN SECTION —
							DOLBY PRO LOGIC							DELAY
								IC601				CENTER
KEY CON														IC602
	L IN
SECTION		3							C-OUT	34		REAR
A	DATA						9	L-IN	S-OUT	35			10	S-IN	S-OUT	13
		4
	CLK								L-OUT	37			8	L-IN
		5				3											FRONT
	LATCH						41	DATA				FRONT			L-MIX
		6														16
	K CON					4	42 CLK					3	3	DATA	OUT
(Page 18)
	L OUT					2	40 EN					4	2	CLK	XTAL	23
												2	4	EN	XTAL	24	X601
																	8MHz
															FRONT
				INPUT SELECT
				IC102
IN L	MUTE	V	1
	Q121	TC						69
			2									65	64
		ST			3			71
			4
		CD
VIDEO/MD			5	A	10			28
	J101									MICON						EQ
				B	9			29
(AUDIO)
									INTERFACE
				INH	6			30							2A
									32 33 34						REC
OUT L															62	61
	PB L								4	3	LATCH						R ch
	REC L

MUTE
CONTROL
Q123,124	54	3

	RELAY REC/PB		96	RELAY	INPUT CHANGE	427 LAT	POWER	98
	A SHUT		26	A SHUT			D.OUT ON/OFF	36
E	B SHUT		27	B SHUT			DBFB H/L	2
	B HALF		28	B HALF			TA MUTE	1
	A HALF		97	A HALF			R RELAY	7
	A PLAY		94	A PLAY SW
DECK	B PLAY		95	B PLAY SW
SECTION	PB A / B		87	PB A/B
(Page 24)	NORM/HIGH		88	EQ H//N
	BIAS ON/OFF		89	BIAS
	RM ON/OFF		90	REC MUTE			IIC DATA	55
	NR ON/OFF		91	NR ON/OFF
							IIC CLK	56
	REC/PB PASS		92	R/P PASS
	LM ON/OFF		93	TC MUTE			RESET	15
	CAP M H/L		82	CAP H/N
	A TRG		83	A TRG
	B TRG		84	B TRG				RESET
	TRIG H/L		85	TRG LOW				SWITCH
	CAP M ON/OFF	1	86	CAP M ON/OFF				Q951
	ST L		41	VOL LAT
		2
			42	PL LAT			AC CUT	20
		3
			44	COM DOUT	MASTER CONTROL
		4
FM/AM	COM DIN		45	COM CLK	IC701
								RESET
TUNER PACK	COM DATA		66	ST DIN
ENCAPSLATED	STEREO		70	STEREO				IC951
COMPONENT
	TUNED		69	TUNED
	ST CE		68	ST CE				D951
	MUTE		72	ST MUTE
		5	67	ST DOUT				+5V
			4	K CON LAT			X1	11
		6						X701
			5	K CON ON
								5MHz
							X2
	OPEN		81	OUT OPEN				10
	ENC-1		80	ENC-1
	ENC-2		79	ENC-2			XT1	14
	ENC-3		78	ENC-3
C								X702
	LOAD IN		64	LOAD IN				32.768KHz
	LOAD OUT		63	LOAD OUT			XT2	13
	TBL. L		60	TBL L
CD	TBL. R		61	TBL R
SECTION	DISC SENS		75	DISC SENS
(Page 20)	T. SENS		76	T SENS

D	L CH
	XRST	57 XRST	CD POWER	46
	IIC-DATA
	IIC-CLK
VIDEO
SECTION
(Page 22)
			STK MUTE	100
09

		IC603
	REAR
	3	1
	5	AMP
		7
	CENTER
	AMP
	IC861
	6	7
	5

					FRONT
45	+	44	43	+	42
					38

EQUALIZER / VOLUME

BB22

BB12

IC201

40 41

J102

SUPER WOOFER

SUPER

DBFB

DBFB

MUTE

SWITCH

SWITCH

AMP

Q130

WOOFER

IC105

Q201

Q202

				LED1	3
					10
					•
					15
					•
					16
					•	LED
	28	DATA			18
						SWITCH
	27	CLOCK
				LED16	23
				LED SELECT	29
		DISPLAY CONTROL		SIRCS	39
	14	RESET	IC601
				SPEANA 1	42
				SPEANA 2	43	D/A
				SPEANA 3	44
				SPEANA 4	45
				L+R	46
				JOG-A	26
				JOG-B	41
	12	X-OUT		KEY 5	37
X601	13 X-IN			KEY 1	33
8MHz
				DOOR SW	38
						S602
						VOLUME
				VOL-A	24	ROTARY
		SEG-1–SEG-35	GR-1–GR-16	VOL-B	40	ENCODER
		67 – 100 • 1	51 – 66
		FL601		VF
		FLUORESCENT INDICATOR TUBE
	MUTE
	SWITCH
	Q912

			VOLUME
			IC604
					MUTE	REAR
				OUT 2		REAR
					Q602
		3	IN
	4	14	IN
		8	CLK
	3
		9	DATA			CENTER
	1				MUTE
		10	LATCH	OUT 15		CENTER
					Q601

FRONT

MUTE

Q254

MUTE

SWITCH

Q120

DBFB

POWER ON/OFF

DOUT ON/OFF

R RELAY

Q601-603

PANEL LED	D+5V

REMOTE
CONTROL
RECEIVER
IC602	• R CH: Same as L ch
S601	• SIGNAL PATH

=AMS +	: FM
ROTARY	: CD
ENCODER	: PB
	: REC
KEY	: VIDEO
MATRIX
S681
6
OPEN

CD POWER

STK MUTE

F

POWER

SECTION

(Page 27)

— 25 —

— 26 —

HCD-V909AV

— POWER SECTION —

TM402

POWER AMP

SURROUND

SPEAKER

IC601

REAR

RY401

REAR

REAR

1

10

–1

REAR

–2

CENTER

CENTER

18

13

CENTER

CENTER

6

RELAY

DRIVE

Q404

FAN MOTOR

M

M901

DRIVER

UNREG

FAN

Q961, 962

MOTOR

OVER LOAD

Rch

–12V

DET

Q601,651

THERMAL

DET

TM401

POWER AMP

Q670,671

FRONT

IC201

THP670

SPEAKER

FRONT

1

10

RY402

–1

FRONT

FRONT

6

RELAY

DRIVE

J760

Q403

PHONES

OVER LOAD

RELAY

6

CONTROL

F

DET

Q402

Rch

Q201

2

PROTECTOR

HP / SP

Rch

IC301

MAIN

Rch

1

SWITCHING

SECTION

Q323

7

4

Q401,405

(Page 26)

DBFB

PROTECT

D+5V

D+5V

SWITCH

+3.3V REG

+5V REG

Rch

Q301

(SW)

(UNSW)

IC801

IC9001

STK MUTE

MUTE

D+3.3V

2

1

+5V SW

3

1

SWITCH

Q9001

Q331

R RELAY

CD POWER

+5V REG

Q9002

IC9002

+5V

A+5V

+5V SW

3

1

(SW)

Q9003

+5V REG

D905

IC902

Q9004

D5V

3

1

SWITCHED

+7V REG

OPT 5V

IC903

AU/D5V SW

+5V REG

D7V

3

1

T501

RECT

POWER

Q906

D302,303

TRANSFORMER

VF

+7V, –7V REG

DOUT

Q907

IC901

VF

DOUT ON/OFF

+B

A+7.5V

1

+7.5

VCC

2

SWITCH

RECT

Q841, 842

D901

A–7.5V

10 –7.5

EN

VEE

9

4

UNREG

E,SP,IA,CH

POWER ON/OFF

Q901

–12V

VF REG

RECT

VFDP

VOLTAGE

• R CH : Same as L ch

Q941

D104,105

SELECTOR

+12V REG

POWER B+

RECT

S501

• SIGNAL PATH

: FM

POWER B–

D101

IC904

SURR B+

• Abbreviation

+12V

3

1

RECT

SP : Singapore model.

SURR B–

D102

ST 10V

3

1

AC

IA

: Indonesian model.

IN

CH : Chinese model.

PRO-LOG 10V

+10V REG

09

IC905

— 27 —

— 28 —