Kenwood DPF-1030, DPF-1030-E, DPF-1030-S, DPF-2030, DPF-2030-E Service manual

COMPACT DISC PLAYER
DPF-1030/1030E/1030-S
DPF-2030/2030E/2030-S
SERVICE MANUAL	© 2000-3/B51-5603-00 (K/K) 2100

Power Knob *		Tray cover *		Front cab ass'y*
(K29-)		(A21-)		(A60-)

POWER

OPEN/CLOSE

		0	7	6
- ON – OFF
			4	¢
P.MODE	CHECK PEAK SEARCH		1	¡
PHONES			REPEAT	RANDOM
EDIT	CLEAR TIME DISPLAY

H/P jack	FL window
(E11-0345-08)	(B10-3611-08)

Top cabinet *	Digital output jack
(A01-)	(W02-2752-08)

OUTPUT

SYSTEM CONTROL

L

R

Pin jack		System jack		AC power cord bushing		AC power cord *
(E63-1081-08)		(E11-0188-05)		(J42-0083-05)		(E30-)

* Refer to parts list on page 14.

In compliance with Federal Regulations, following are repro-		KENWOOD-Corp. certifies this equipment conforms to DHHS
ductions of labels on, or inside the product relating to laser		Regulations No. 21 CFR 1040. 10, Chapter 1, Subchapter J.
product safety.		DANGER : Laser radiation when open and interlock defeated.
			70%
Refer to DP-3080MKΙΙ /3090 Service manual (B51-5349-00),		AVOID DIRECT EXPOSURE TO BEAM.

if you require disassembly for repair.

DPF-1030/2030

CONTENTS / ACCESSORIES

Contents

CONTENTS / ACCESSORIES ..................................	2
DISASSEMBLY FOR REPAIR....................................	2
CIRCUIT DESCRIPTION ............................................	3
ADJUSTMENT ............................................................	4
PC BOARD ................................................................	5

SCHEMATIC DIAGRAM	............................................ 7
EXPLODED VIEW ....................................................	12
PARTS LIST..............................................................	14
SPECIFICATIONS ......................................	Back cover

Accessories

Audio cord ..................	(1)	System control cord ......	(1)
(E30-2913-08)		(E30-2912-08)	AC plug adaptor ..............	(1)
			(E03-0115-05)

Use to adapt the plug on the power cord to the shape of the wall outlet.

(Accessory only for regions where use is necessary.)

Remote control unit .........	(1)
(A70-1414-08) : RC-P0715
(DPF-2030 only)	Battery cover : (A09-1190-08)

2 3	5 6	8 9	0 +10			7 6	4 ¢	DOWN UP	OUTPUT LEVEL	UNIT RC-P0715
1	4	7	CHECK				¡			CONTROL
TIME DISP	P.MODE	EDIT	CLEAR	RANDOM	REPEAT		1			REMOTE

Batteries (R6/AA)........	(2)
(DPF-2030 only)

DISASSEMBLY FOR REPAIR

1. How to open tray when tray not come out.

1.Insert the screw driver to left side hole of mechanism ass'y.

2.While pushing the rack gear fully right wards, then the tray pull.

2

1. Pin description of microprocessor

	Pin No.	Pin Name	I/O	Description
	1-6	6G-1G	O	FL grid control port.
	7	NC	-	Unused.
	8	VDD	-	Power supply(+5V).
	9-11	-	-	Connected to ground.
	12	C-RESET	O	DSP signal output.
	13	S-MUTE	O	Muting signal output for system.
	14	NC	-	Unused.
	15	TEXT	I	Text copy detection.
	16	-	-	Connected to ground.
	17	RESET	I	Hardware reset signal input.
	18	LD CLOSE	O	Tray motor control.
	19	LD OPEN	O	Tray motor control.
	20	AVSS	-	Connected to ground.
	21	-	-	Connected to ground.
	22	PU IN SW	I	Pickup location.
	23	OPEN SW	I	Tray open switch input.
	24	CLOSE SW	I	Tray close switch input.
	25-28	KEYO-3	I	Key input port.
	29	AVDD	-	Power supply(+5V).
	30	AVREF	-	Reference voltage(+5V).
	31,32	XT1,2	-	Connected to ground.
	33	VSS	-	Connected to ground.
	34,35	XO,1	-	X'tal 4.19MHz.
	36	WRQ	I	Sub code Q output.
	37	COIN	O	Command data to DSP.
	38	16BIT	-	Unused.
	39	HF	-	Connected to ground.
	40	NC	-	Unused.
	41	CQCK	O	Clock output to DSP.
	42	SQOUT	I	SQ data to dsp.
	43	RWC	O	Reading/writing control port.
	44	GND	-	Connected to ground.
	45	S BUSY	I/O	System control data.
	46	S DATA	I/O	System control status.
	47	RMC	I	Remote control signal input.
	48	GND	-	Connected to ground.
	49	TRY L/H	O	Tray motor speed control.
	50	SL-	O	Sled motor control port(reverse).
	51	SL+	O	Sled motor control port(forward).
	52	VDD	-	Power supply(+5V).
	53-59	NC	-	Unused.
	60	DRF	I	CD focus OK signal input.
	61	NC	-	Unused.
	62-70	a-j	O	FL segment(a-j) control port.
	71	VLOAD	-	Power supply(-30V).
	72,73	k,l	O	FL segment(k,l) control port.
	74-77	NC	-	Unused.
	78-80	9G-7G	O	FL grid(9G-7G) control port.
3

2. Test mode

Setting the test mode

: While pressing the STOP key, press the POWER switch.

START

FL LIGHT UP ALL

Tray open/close enable (display no change)

For move Pick-up, UP and DOWN key enable only stop mode

Key in PLAY
Laser ON , Display [LD ON]
Key in Play
Focus ON, Display [FS ON]
Key in PLAY		STOP key enable
		If key in STOP,
		return to start
PLAY (Track servo OFF) Display [Sb OFF]		stage.
Key in PLAY
Play (Track servo ON)
	WITH TIME DISPLAY
Key in STOP	When play mode, UP key enable
	but only track jump.
STOP
Test mode will be cancelled by pressing the
POWER switch key in the stop mode.

3. Key function in test mode

No.	INPUT KEY	FUNCTION	DISPLAY
1	PLAY(1ST)	LASER ON	LD ON
2	PLAY(2ND)	FOCUSING SERVO ON	FS ON
3	PLAY(3RD)	PLAY(TRACKING SERVO OFF)	Sb off
4	PLAY(4TH)	PLAY(TRACKING SERVO ON)	TN0. And Time
5	UP	In the stop mode. Moves the pickup slightly
		toward the outer position disc.	–
		When tracking servo is ON, set the track number up.
6	DOWN	In the stop mode. Moves the pickup slightly
		toward the inner position disc.	–
		When tracking servo is ON, set the track number up.
7	STOP	Laser off, focusing servo off, tracking servo off.	All segments
8	OPEN/CLOSE	In the stop mode, Tray is opened or closed.	All segments

1030/2030-DPF DESCRIPTION CIRCUIT

DPF-1030/2030

ADJUSTMENT

CD section

Since this CD system incorporates the following automatic adjustment function, when the pickup is replaced, it is not necessary to readjust it

Since this CD unit does not need adjustment, the combination of PWB and laser pickup unit is not restricted.

•Automatic adjustment item

1.Focus offset(Fig.1)

2.Tracking offset(Fig.2)

3.E/F balance (Tracking error balance) (Fig.3)

4.RF level AGC function (HF level : constant)

5.RF level automatic follow-up of the tracking gain

This automatic adjustment is performed each time a disc is changed. Therefore, each disc is played back using the optimal settings

Fig.4 Checking points

4