Kenwood KDC-3022, KDC-322, KDC-5023, KDC-5023-S, KDC-5024-V Service manual

CD RECEIVER

KDC-3022, 322 KDC-5023/R, 5024/V/Y/YV KDC-507, 5094RY SERVICE MANUAL

© 2003-1 PRINTED IN JAPAN B53-0024-00 (N) 3379

•CD MECHANISM OPERATION DESCRIPTION is not in this sevice manual. Please refer to service manual for X92-4450-0X (B51-7889-00).

CD mechanism extension cord (22PIN) : W05-0618-00

Panel assy		Front grass		Panel assy		Front grass
(A64-2824-02 : KDC-3022)		(B10-4304-01 : KDC-3022)		(A64-2833-02 : KDC-5023R)		(B10-4310-01 : KDC-5023R)
(A64-2825-02 : KDC-322)		(B10-4305-01 : KDC-322)		(A64-2834-02 : KDC-5023)		(B10-4311-01 : KDC-5023)
	KDC-3022			DAB	KDC-5023
					OFF
+	OFF			+
-			NAME.S	-			NAME.S	AUTO
			DISP AUTO				DISP
								AME
			AME		SCAN	RDM REP	M.RDM
	SCAN	RDM REP	M.RDM
	AUD				AUD
					PTY
	C.S.				MENU
	MENU

Panel assy			Front grass		Panel assy				Front grass
(A64-2838-02 : KDC-5024/Y)			(B10-4314-01 : KDC-5024/Y)		(A64-2839-02 : KDC-5094RY)				(B10-4315-01 : KDC-5094RY)
(A64-2851-02 : KDC-5024V/YV)			(B10-4324-01 : KDC-5024V/YV)		(A64-2842-02 : KDC-507)				(B10-4317-01 : KDC-507)
DAB		KDC-5024				DAB	KDC-507
+	OFF					+	OFF
-				NAME.S		-				NAME.S
				DISP
				TI				SCAN	RDM REP	DISP TI
		SCAN	RDM REP	M.RDM						M.RDM
	AUD						AUD
	PTY						PTY
	MENU						MENU
DC cord		DC cord		Antenna adaptor		Screw set		Screw set		Lever
(E30-4784-05)		(E30-4790-05)		(T90-0523-05)		(N99-1719-05)		(N99-1730-15)		(D10-4589-04)
(E30-6131-05)		(E30-6134-05)

		Remote controller assy(RC-410)		Remote controller assy(RC-505)
				(A70-2040-05)
Escutcheon	Mounting hardware assy	(A70-2025-05)
(B07-3022-02)	(J21-9716-03)
(B07-3083-02)
(B07-3089-02)
			Plastic cabinet assy		Not supplied
			(A02-1486-13)

Depends on model. Refer to the parts list.

2

TUNER

AM+B

SW5V

A8V

AUDIO OUT

Q101

BUFFER

S-METER

PLL-DATA

PLL-CLK

IFC OUT

CD

MS DATA

MS CLK

SW1

SW2

SW3

SW4

M MUTE R

M MUTE L

M RST

M STOP

LO/EJ

MOSW

SERVO+B

A8V

BU5V

CD MECHA+B

EX.CH

REQ C

CH CLK

DATA H

CH-CON

REQ H

DATA C

CH RST

CH MUTE

BUCK UP

DAUGHTER UNIT (X89- )

A8V

IC2

SW5V
IC7
RDS	Q201
DECODER	BUFFER

FM	AUX	FREE
AM
MP IN	E-VOL
LEVEL		REAR
CD	&
	MPX
CH
AFS		FRONT
QUAL
		SW5V

IC10

EEPROM

IC1

	METER-	DATAR RCLK QUAL	NOISE			PRE MUTE
	S						MUTE
						P-MUTE
							BEEP
						EXT.AMP.CON
						DIMMER
							PHONE
			u-COM
						ACC DET
						B.U DET
							PS1-0
DETPANEL	EJECT DSI	DATASL CLKL CEL DATALL	AVOL BVOL	REMO	DATAV CLKV	DATA-O CLK-O CE-O	PS1-1
BU5V							PS1-2
							PS2-0
							PS2-2
							RST

		IC3
	IC1	DA CONVERTER
S1	LCD DRIVER	(V-ILL ONLY)
	WITH	REMOCON IC2
PANEL DET	KEY MATRIX
S1		S24
		RESET SW
EJECT SW		ROTARY
		ENCODER
DSI		LCD
EJECT ILLUMI

SWITCH UNIT (X16- )

		AUX IN
	PRE MUTE	PRE OUT
		(REAR/NF)
	PRE MUTE	PRE OUT
		(REAR) 3PRE

	PRE MUTE	PRE OUT
		(FRONT)
		IC4

IC6

MUTE
DRIVER		BU5V	POWER
			IC
	THERMAL		BUCK UP
	PROTECT
		SW5V
	EXT AMP
	DIMMER
	TEL MUTE
	ACC DET
	B.U DET
	SURGE DET		BACK UP
		Q21
SERVO+B		SERVO	SW 14V
		IC9
CD MECHA+B		SW REG
IC8
RESET	BU5V
			IC3
		AM+B
		FM+B	POWER
		A8V	SUPPLY
	ILLUMI		IC
		BU5V
Q152		Q4
PANEL 5V	BU5V	SW 5V	SW5V

SP OUT

EXT.AMP.CON

DIMMER

TEL MUTE

ACC

BACK UP

WIRED REMO/ OPEL DISP I/F

ANT DET

P CON

DIAGRAM BLOCK

3022,322,5023/R,5024/V/Y/YV,507,5094RY-KDC

KDC-3022,322,5023/R,5024/V/Y/YV,507,5094RY

COMPONENTS DESCRIPTION

● CD PLAYER UNIT (X32-5390-00/01)

Ref.No.	Component Name	Application/Functions	Operation/Condition/Compatibility
IC1	AN22002AA	RF amplifier adapted for CD-RW	Generation of RF signal based on the signals from the APC circuit and
			pickup, and generation of servo error (focusing error and tracking error)
			signals. Detection of dropout, anti-shock, track crossing and off-track
			conditions, included gain control function during CD-RW.
IC2	MN6627771KP	CD signal processor built-in MI-COM	Focusing, tracking, sled and spindle servo processing. Automatic
			adjustment (focusing, tracking, gain, offset and balance) operations.
			Digital signal processing (DSP, PLL, sub-codes, CIRC error correction,
			audio data Interpol ration) operations, and Microcomputer function.
IC3	BA5824FP	4CH BTL driver	Focusing coil, tracking coil, spindle motor and sled motor driver, disc
			loading and eject operation.
IC4	NJM4580M1	Low pass filter	2nd low pass filter for audio signals
Q1	MCH6101	APC	LD power control
Q2	2SA1362(Y)	D.5V SW	When P ON signal gose"L", Q2 is ON
Q3	DTC124EUA	Q4 SW	When P ON signal gose"L"(SW+5V AVR is ON), Q3 is ON
Q4	DTA143XUA	A.8V SW	When P ON signal gose"L"(Q3 is ON), Q4 is ON
Q5	2SC4081	Current driver	Current driver
Q6	2SA1576A	Current driver	Current driver
D1	DAN202U	Protection diode	Laser diode protection
D2	MA8051-L	Zener diode	DAC AVR/LPF reference voltage (A.5V)
D3	DA204U	Current driver	Current driver

● ELECTRIC UNIT (X25-9580-xx/2232-xx)

Ref.No.	Component Name	Application/Functions			Operation/Condition/Compatibility
IC1	M30302MC-5W3FP	System microcomputer	Control for TUNER unit, CD mechanism, volume & tone, LCD driver and
	M30302MC-1N4FP		external CD changer unit
IC2	TDA7407D	Electronic volume & N.C.MPX	Control for source selector, volume & tone, and FM multiplex detector.
IC3	BA4911-V4	Power supply IC	Power supply for the units (Bu5V, Audio8V, FM+B, AM+B, P-con and
			ANT-con)
					SW1	OUT
					1.5-3.0V	Audio ON
					3.5-5.0V	Audio, P-con ON
					7.0V-	Audio, P-con, P-ant ON
					SW2
					2.0-3.0V	Illumination, FM ON
					4.0V-	Illumination, AM ON
IC4	TA8273H	Audio power amp IC	Amplifier for audio signal to derive for 4channel speakers (50W
			maximum for each channel)
IC6	HD74HC27FP	Muting control IC	Control for timing for mute
IC7	SAA6581T	RDS decoder	Decode for RDS signal
IC8	PST3435UL	Reset IC	When detection voltage goes below 3.5V or less Reset IC output change
			to "L" signal
Q1	2SC4081	Serge detection	When backup voltage become more than 24V output is "L" (momentary
			power down) / When backup voltage become less than 24V output is "H"
Q2	2SC4081	Backup detection	When BU voltage supplied output is "L" / When BU voltage not supplied
			or momentary power down is detected output is "H"
Q3	2SC4081	ACC detection	When ACC voltage supplied output is "L"
Q4	2SA1036K	SW 5V	When base voltage is "L" Q4 is ON
Q21	2SD2375	AVR	Servo regulator
Q22	UMC2N	SW	Servo SW
Q23	UMC2N	IC control	Power supply IC controller
Q101	KRC410	Buffer amp	COMPOSITE SIGNAL BUFFER
Q151	DTA114YUA	DSI driver	When base voltage level is "L" DSI LED is light up / When base voltage
			level is "H" DSI LED turns off / When panel assy is pull off, cut off the
			supply to panel 5V AVR.					3

KDC-3022,322,5023/R,5024/V/Y/YV,507,5094RY

COMPONENTS DESCRIPTION

Ref.No.	Component Name	Application/Functions	Operation/Condition/Compatibility
Q152	2SA1576A	Panel 5V SW	When panel assy attached to the unit, Q152 base gose "L" and supply to
			panel 5V AVR to panel assy
Q153	KRC404	Illumination control	When Q153 base voltage to "H", illumination is light up
Q154	2SA1577	Illumination control	When Q153 base voltage to "H", illumination is light up
Q201	KRC410	Buffer amp	Noise buffer amp
Q351	KRC410	Pre mute SW	When base voltage to "H", muting to the rear Lch line
Q352	KRC410	Pre mute SW	When base voltage to "H", muting to the rear Rch line
Q354	KRA303	Pre mute SW	When base voltage to "L", drive to pre mute SW(Q351,352,355,356)
Q355	KRC410	Pre mute SW	When base voltage to "H", muting to the front Lch line
Q356	KRC410	Pre mute SW	When base voltage to "H", muting to the front Rch line

● SWITCH UNIT (X16-203x-xx/2032-xx)

Ref.No.	Component Name	Application/Functions	Operation/Condition/Compatibility
IC1	NJU6535	LCD driver	Drive for LCD unit
IC2	PNA4S22M	Remote control IC	Receiving for the remote control unit
Q1,Q4	DTA114EUA	Remo.on SW	When base voltage level goes "L" the power supply IC2 is turned "ON"
Q2	2SC4081	Key illumination SW	Lights up for green key illumination when base voltage level goes "H"
Q3	2SC4081	Key illumination SW	Lights up for red key illumination when base voltage level goes "H"

4

KDC-3022,322,5023/R,5024/V/Y/YV,507,5094RY

MICROCOMPUTER'S TERMINAL DESCRIPTION

● IC1: ELECTRIC UNIT (X25-9580-xx/2232-xx)

Pin No.	Name	I/O	Description/Processing Operation
1-5	N.C	-	Open
6	REMO	I	Remote control signal input terminal
7	N.C	-	Open
8	BYTE	I	EXT. bus width select input terminal (GND)
9	CNVSS	-	Pull down to GND
10	XCIN	I	Sub clock input terminal (32.768KHz)
11	XCOUT	O	Sub clock output terminal (32.768KHz)
12	RESET	I	Reset terminal (Active : L )
13	XOUT	O	Main clock output terminal (10MHz)
14	VSS	-	GND
15	XIN	I	Main clock input terminal (10MHz)
16	VCC	-	Power supply input terminal (BU 5V)
17	NMI	-	Pull up to BU5V
18	EJECT	I	Eject detection terminal (Active L)
19	R-CLK	I	RDS decoder clock input terminal
20	LX-REQ S	I	EXT. unit request signal input terminal (Request L)
21	ILL CON	O	Illumination control terminal
22	PANEL 5V	O	Control for Panel5V AVR (Active L)
23	VOL A	I	Volume key input terminal
24	VOL B	I	Volume key input terminal
25	LOE/LIM SW	I	CD mechanism down sw detect input terminal (Disc clamp : H)
26	BEEP	O	Beep audio signal output terminal
27	M STOP	O	Request signal (Mechanism is STOP) output to CD mechanism (active L)
28	MOSW	O	CD mechanism motor control output terminal (Loading, eject ,brake : H)
29	PLL-CLK	O	System clock put to Front-end
30	PLL-DATA	I/0	Data input / out put to Front-end
31	LX-DATA M	O	EXT. unit Data output to EXT.unit
32	LX-DATA S	I	EXT. unit Data input from EXT.unit
33	LX-CLK	I/O	EXT.unit Clock input/output terminal
34	LX-REQ M	O	EXT unit Request output terminal (Request L)
35	L DATAS	O	DATA output terminal to LCD driver IC
36	L DATAL	I	DATA input terminal from LCD driver IC
37	L CLK	O	CLK output terminal to LCD driver IC
38	FLIP-DET	I	Panel assy open detect terminal (panel close : L )
39	L CE	O	CE output for LCD driver IC
40	LO/LE	I/O	CD mechanism loading / eject control terminal
41	EPM	I	Flash memory control terminal (pull down to GND, 100K)
42	M RST	O	Reset signal output to CD mechanism (active L)
43	M-MUTE R	I	Request to muting signal(R ch) from Mechanism ( Mute on : L )
44	12EJE SW	I	12cm CD disc eject SW detection input terminal (12cm disc : L )
45	M-MUTE L	I	Request to muting signal (L ch) from Mechanism ( Mute on : L )
46	LX-CON	O	EXT.unit select control terminal (Active H)
47	LO.S SW	I	Loading start SW detection input terminal (Loading start : L )
48	DSI	I	Disc guide illumination control terminal (Lighting on : L)
49	PANEL DET	I	Panel assy detect terminal (Panel assy come off : L)
50	N.C	-	Open

5

KDC-3022,322,5023/R,5024/V/Y/YV,507,5094RY

MICROCOMPUTER'S TERMINAL DESCRIPTION

Pin No.	Name	I/O	Description/Processing Operation
51	IFC OUT	I	IFC OUT input terminal
52	R-DATA	I	RDS decoder data input terminal
53	R-QUAL	I	RDS decoder QUAL input terminal
54	N.C	-	Open
55	AFS	O	Noise detection (FM seek, AM search : L )
56	SDA	I/O	Control Data input / output terminal for electric volume, CD mechanism
57	SCL	O	Clock DATA output terminal for electric volume, CD mechanism
58	MUTE	O	Muting control terminal ( to IC2)
59	N.C	-	Open
60,61	IC2 TYPE0/1	I	Market/Genuine model setting terminal
62	VCC	-	Power supply input terminal (BU 5V)
63	N.C	-	Open
64	VSS	-	GND
65-67	TYPE0-2	I	Destination setting terminal
68	N.C	-	Open
69	SVR	O	Power IC SVR control terminal (Power off : L)
70	S-STBY	O	Power IC standby control terminal (Power IC on : H)
71	P-MUTE	O	Power IC standby muting control terminal (Power mute/all off/TEL mute : L)
72	SW5V	O	SW5V on/off control terminal ( SW5V ON : L)
73	B.U DET	I	BU detect input terminal ( BU detect : L )
74	ACC-DET	I	ACC detection input terminal (ACC detect : L)
75	N.C	-	Open
75-80	PS1-0/1/2,PS2-0/1	O	Power supply IC control terminal
81	LX-MUTE	I	Muting signal request for EXT.unit ( Muting ON : L)
82-88	N.C	-	Open
89	KEY-REQ	I	Request for communicate from LCD driver IC (KEY input : L )
90-92	N.C	-	Open
93	S-METER	I	S meter voltage detection input terminal
94	NOISE	I	FM noise detection input terminal
95	N.C	-	Open
96	AVSS	-	GND
97	PHONE	I	Mobil phone detection input terminal
98	VREF	-	Ref. voltage input terminal
99	AVCC	-	Power supply input terminal (BU 5V)
100	REFCON	O	VERF control terminal (Power ON : H)

6

KDC-3022,322,5023/R,5024/V/Y/YV,507,5094RY

TEST MODE

1.How to enter the test mode

•While holding the preset 1 key and 3 keys, reset the unit.

2.How to exit from the test mode

•Reset the unit, ACC OFF, power OFF, and come off the front panel assy for the unit.

3.Initial status in the test mode

• Sources	: All OFF.
• Display	: All segments were lit.
• Volume	: -10 dB (displayed as 30)
• Loudness	: OFF
•CRSC	: OFF regardless of the presence of
	switching function.
• SYSTEM Q	: Flat.
• Aux	: ON
• Display color	: white (variable color display model only)
• Beep sound	: ON

4. Special display in Tuner mode

When any of the following messages is displayed in Tuner mode, the Front-end (F/E) may be bad condition.

•"TNE2P NG": The EEPROM is set to the default (unstable values) because the F/E was shipped without passing through the adjustment process, etc.

•"TNCON NG": Communication with the F/E to microprocessor is not possible.

5.Forced switching of K3I

Each press of the Preset 6 key in Tuner mode should switch K3I from AUTO → Forced Wide → Forced Middle → Forced Narrow → AUTO. The initial status is AUTO and the display shows these modes as follows.

• AUTO : FMA

• Forced Wide : FMW

•Forced Middle : FMM

•Forced Narrow : FMN

•When the number of total tracks of an MP3 disc is nine or less, unit playback from a track 1.

•When the media to CD-DA, unit playback from track No.28 by key operation of preset 1 key.

7.Audio-related specifications

•A short press of the Q key initiates the audio adjustment mode.

•Pressing the key on the remote initiates the audio adjustment mode.

•Continuous holding of a remote control key is inhibited.

•Bass, Middle and Treble are adjusted in 3 steps of -8 / 0 / +8 with the Track Up/down keys (default is 0).

•Balance is adjusted in 3 steps of Left L15 / 0 / R15 Max with the Track Up/down keys (default is 0).

•Fader is adjusted in 3 steps of Rear15 / 0 / F15 Max with the Track Up/down keys (default is 0).

•HPF is adjusted in 2 steps of Through/170Hz (or 200Hz) with the Track Up/down keys (default is through).

•LPF is adjusted in 2 steps of Through/120Hz with the Track Up/down keys (default is through).

•Bass f, Bass Q, Bass EXT, Middle f, Middle Q and Treble f are not dealt with by the audio adjustment.

8.Menu-related specifications

•A short press of the PLAY/PAUSE key initiates the Menu mode.

•Pressing the DNPP key on the remote initiates the Menu mode.

•Continuous holding of a remote control key is inhibited.

•Contrast is adjusted press of the Track up/down key in 3 steps of 0 / 5 / 10 (default is 5).

9.Backup current measurement

When the unit is reset while ACC is OFF (i.e. by turning Backup ON), the MUTE terminal goes OFF in 2 seconds in place of 15 second. (The CD mechanism is not activated at this time.)

6.Test mode specifications of the CD receiver

•Forced ejection is inhibited in the reset start operation. When the unit is reset while a CD is loaded in it, the CD is not recognized by resetting.

•Each press of the Track Up key jumps to the following track numbers:

No. 9 → No. 15 → No. 10 → No. 11 → No. 12 → No. 13 → No. 22 → No. 14 → No. 9 (The cycle restarts from here.)

•Each press of the Track Down key jumps to the previous track number to the track being played.

7

KDC-3022,322,5023/R,5024/V/Y/YV,507,5094RY

TEST MODE

10. Special display when the display is all on

Pressing the Preset keys while the power is ALL OFF dis-

plays the following information.

PRESET 1	Version display (8 digits, Month/Day/Hour/Minute)
	(Display) SYS xxxxxxxx
PRESET 2	Serial No. display (8 digits)
	(Display) S. No. xxxxxxxx
PRESET 3	Short press: View power ON time.
	(The All OFF period is not counted.)
	Long press/hold: Clear power ON time.
	(Display) PonTim xxxxx	Max. 60,000 (hours)
PRESET 4	Short press: Display CD operation time.
	Long press/hold: Clear CD operation time
	(Display) CDTime xxxxx	Max. 60,000 (hours)
PRESET 5	Short press: Display CD ejection count.
	Long press/hold: Clear CD ejection count.
	(Display) EjeTim xxxxx	Max. 60,000 (times)
PRESET 6	Short press: Display Panel open/close count.
	Long press/hold: Clear Panel open/close count.
	(Display) PnCnt xxxxx	Max. 60,000 (times)
FM	ROM correction version information
	(Display) ROM Rxxxx
	If not mounting ROM correction chip set display
	shows ROM R_

11.Change the condition of TUNER channel space selection (K/M type only)

While holding the preset 1 key and 5 keys, reset the unit.

Security-related information

1. Forced Power ON mode (All models)

Even when the security is approved, resetting the unit while holding the Q and Preset 4 keys makes it possible to turn the power ON for 30 minutes.

After 30 minutes have elapsed, it is not possible to return to the previous condition unless the unit is reset again.

2.Method of registration of the security code after EEPROM (Tuner unit assy) replacement (Code security model)

1.Enter the test mode. (See 1. How to enter the test mode)

2.Press the MENU key to enter the MENU mode.

3.Press and hold down the Track up/down key for 1 second until “Security” is displayed.

4.Enter the code using the FM/AM/TARCK up/down keys.

•FM key: number is up

•AM key: number is dawn

•Track up key: move the cursor for right side

•Track down key: move the cursor for left side

5.Hold down the Track up key for at least 3 seconds and the message, "RE-ENTER" appears, so once again enter the code according to Step 3 above.

6.Press and hold the Track up key for 3 seconds until "APPROVED" is displayed.

7.Exit from the test mode. (See 2. How to exit from the test mode) (Note) All Clear is not applicable to the security code of this model.

3.Simplified method of clearing the security code (K, E Type only)

1.While the code entry is requested, press and hold the TRACK UP key for 3 seconds while holding the DISP key pressed. (This should turn "----" off.)

2.Enter “KCAR “from the remote.

•Press the 5 key on the remote twice, and then press the Track Up key. (This enters "K".)

•Press the 2 key on the remote 3 times, and then press the Track Up key. (This enters "C".)

•Press the 2 key on the remote once, and then press the Track Up key. (This enters "A".)

•Press the 7 key on the remote twice, and then press the Track Up key. (This enters "R".)

3.The security code is cleared and the unit enters the ALL OFF mode.

4.If you commit a mistake in the code entry, the unit enters the code request mode again.

8

A	B	C	D	E

KDC-3022,322,5023/R,5024/V/Y/YV,507,5094RY

PC BOARD

KDC-5023R,5024/Y/V/YV KDC-5094RY,507

(COMPONENT SIDE VIEW) (FOIL SIDE VIEW)

SWITCH UNIT

X16-2xxx-xx (J74-1451-02)

		D10	D11
		AM	FM
			S24
	RST		D20
			D19
	D7		SRC	D12
		D14	D13
			D15
AUD	D8			ED1
1
	D9
				43
2
	D6
3
	D5
4
	D4
5
	D1
		KI0
		KI1
		KS5
6		KI2
	D2
		KS4
		KI4 KI3		1
		KS3
DISP	D3
TI			4	5

IC2

SWITCH UNIT

X16-2xxx-xx (J74-1451-02)

	GND-ESD
FLIP DET
VOL A	CP1	C8	VOL B	R17
R15	C7			R14

J1

	2	1
				RST
C9			REMO
	16	15
	CL
R16	CE DO
CP3		R6
	R4
	DI	R8
			R7
		Q2 EB
ILL +B
	ILL GND
	VDD
	D GND	R10
		R11
		Q3 EB
	16	1
17		64
	IC1			C5
				R2
32		49		CP5
	33	48		R9
		KI0 KS5	KI1	KI4 KI3 KI2
		CP4
	KS3	KS4
	Q1
	EB
	Q4	R13
	EB	R12
	R5	R18
		C12
	C11
C6

			KDC-322/3022/5023
(COMPONENT SIDE VIEW)							(FOIL SIDE VIEW)
		SWITCH UNIT					SWITCH UNIT
		X16-203x-xx (J74-1452-02)					X16-203x-xx (J74-1452-02)
			D10	D11
			AM					-ESD
				FM				GND
				S24
							FLIP DET
							VOL A	CP1 C8	VOL B	R17
				D20			R15	C7		R14
	RST
				D19
									J1
								2	1
											RST
					SRC	D12
	D7
			D14	D13			C9			REMO
					D15
AUD						ED1		16	15
	D8							CL
							R16	CE DO
							CP3		R6
1								R4
	D9
								DI
						43
							ILL +B	ILL GND
2								VDD
	D6							D GND
3
	D5
4
	D4							16	1
							17			64
5								IC1
											C5
	D1
											R2
			KI0				32			49	CP5
			KI1					33	48		R9
6			KS5						KS5	KI1 KI0	KI4 KI3 KI2
			KI2						CP4
	D2
			KS4
			KI4 KI3			1			KS4 KS3
								Q1
			KS3					B
								E
DISP	D3								R13
								Q4
								EB	R12
TI								R5	R18
									C12
				4		5		C11
				IC2			C6

D18

D17

3

1

D18

D17

3

1

SWITCH UNIT

X16-2xxx-xx

Ref. No	address
IC1	4B
IC2	6B
Q1	5B
Q2	3B
Q3	4B
Q4	5B

	(COMPONENT SIDE VIEW)		(FOIL SIDE VIEW)			SWITCH UNIT
						X16-203x-xx
	DAUGHTER UNIT		DAUGHTER UNIT			Ref. No	address
	X89-2570-10/2662-70 (J74-1450-02)		X89-2570-10/2662-70 (J74-1450-02)
						IC1	4E
		S1
						IC2	5D
	R2	C1				Q1	5D
	R1	D1
	R3					Q4	5D
	R4
		J1
		1
		2
				CN1
			17		18
	R11	15
	R6	16
	R13
	R7
	R5
	R12
	R9
	R10		1		2
	R8

9

Refer to the schematic diagram for the values of resistors and capacitors.

1

2

3

4

5

6

7

F	G	H	I	J

KDC-3022,322,5023/R,5024/V/Y/YV,507,5094RY

PC BOARD (COMPONENT SIDE VIEW)

1

2

3

4

5

6

Q21

E

B

W57

W58

D21

C21

C1

W55

IC3

1

W53

L1

L2

D22

W52

C25 C24

16

1

D1

W51

C20

W50

C23

C29

C26

C28

C22

R22

D23

W49

W47

W48

R23

W44

W45

D3

W42

9

8

D255

W41

D253

R31

R8

D2

J1

R9

D31

C258

D4

D270

D269

W36

W35

R13

W34

24

25

C255

D271

W33

W31

W14

W15

W22

W21

W23

C256

W29

W25

W24

W30

W26

R260

W60

L10

R262

W19

W16

IC4

2

1

C253

C251

C254

C252 D301

D303

D304

C211

W9

W13

C209

C302

D203

W5

3 2

5 1

C303

D310

W59

J2

128 4

6 7

C301

D309

D311

11

10

13

9

C352

D302

D308

D307

D305

D306

C353

C354

-xx

J3

C351

CN3

1

3

ELECTRIC UNIT X25-9580-xx/2232 (J74-1453-02)

J4

L3

A1

1

BU5V

C27

L11

RESET

C409

D401

12

W54

CNVSS

S-MTR

X2

X1

D27

D26

BU5V

IFC

RESET

GND

NNOISE

22

CH-REQH

21

CH-CON CH-CLK

W32

CH-DATAC

DATAH

W20

CN2

2

W12

CH-

CLK

W17

1

C201

DATA

W10

D151

D157

D201

W8

D152

D202

W7

D158

C202

W6

D153

W4

PLL-DATA

S-MTR

D162

D161

D155

D160

D154

W2

PLL-CLK

R113

R112

R114

CN4

1

2

P1

L9

	W46
	W43
W40	C164
W39
W38
W37
D163

1 2

CN1

17

18

C115	X3
	C117
24	S1

X25-9580-xx/2232-xx

Ref. No	address
IC3	2H
IC4	4F
Q21	1G

7

10

Refer to the schematic diagram for the values of resistors and capacitors.

K	L	M	N	O

KDC-3022,322,5023/R,5024/V/Y/YV,507,5094RY

PC BOARD (FOIL SIDE VIEW)

1

R166

R165

E B	Q152

R187

R186

Q154

B E

R158

R157

R184 R58

R185 R56

R60

R104

R102

R103

R63

W103 W104

R62

C165

	C113	9
C112	R115
		16

C163

R21

C

E

R402

C403

Q22 E B

C

B E

Q153

IC8 2 1

3 4

R401

R161

R159

C410

C402

C401

R160

R314

R164

W102

1

100

C111

R106

R1

81

D24

R105

30

IC1

80

R2

D25

31

R27

R313

CC

E Q23

R4

BE

Q1

W101

R28

R24

EB

R5

R153

R154

R152

R59

R403

R51

50

51

R405

R407

R25

R7

C3 R6

R3

C31 R32

D258

C411

R26

R315

R33

B E

D251

D256

R162

R155

R163

R55

R54 R53

R52

Q151

R101

R206

R404

R406

R412 R413 R410 R411 R408 R409

R414

C304

1814

Q4

R255

R253

71

IC6

C6

Q2

C5 R10

R168

R11

Q3

C4

R167

B E

E B

R256

B E

R12

R254

R257

R257

R67

R64

R65

R61

R312

R251

R252

R68

C51

C52

R209

R210

1

8

R208

IC10

R207

4

5

1

28

TH1

IC2

C210

R303

R305

C205

C212

R203

R307

C203

R302

14

15

R306

R201

C213

R301

R202

C206

R374

C204

R309

R308

R311

Q356

R310

R205

EB

R304

C306

R204

8

C118

E B

Q201

B

R352

R360

Q352

R358

IC7

E B Q354

R364

R362

Q355

C356

E

1

BE

Q101

R359 R361

R363

R355

Q351

R111

C357

EB

C114

E B

R357

R351

C116

C119

C2

D254

D252

D257

R261

R259

C356

02)-1453-(J74 xx-xx/2232-9580-X25 UNIT ELECTRIC

X25-9580-xx/2232-xx

Ref. No	address	Ref. No	address	Ref. No	address	Ref. No	address	Ref. No	address
IC1	2L	IC10	4M	Q22	1N	Q153	2K	Q354	5M
IC2	4M	Q1	3N	Q23	3M	Q154	2K	Q355	6N
IC6	3M	Q2	3M	Q101	6L	Q201	5M	Q356	5M
IC7	6K	Q3	3N	Q151	3L	Q351	6N
IC8	2L	Q4	3M	Q152	3K	Q352	5N

11

Refer to the schematic diagram for the values of resistors and capacitors.

2

3

4

5

6

7