Sharp CDM-8000-W, CPM-8000 Service manual

CD-M8000W/CP-M8000

SERVICE MANUAL

No. S4228CDM8000W

MINI COMPONENT SYSTEM

MODEL CD-M8000W

SPEAKER SYSTEM

MODEL CP-M8000

• In the interests of user-safety the set should be restored to its original condition and only parts identical to those specified be used.

CONTENTS
	Page
SAFETY PRECAUTION FOR SERVICE MANUAL ...........................................................................................................	2
VOLTAGE SELECTION .....................................................................................................................................................	2
AC POWER SUPPLY CORD AND AC PLUG ADAPTOR .................................................................................................	2
SPECIFICATIONS .............................................................................................................................................................	3
NAMES OF PARTS ...........................................................................................................................................................	4
DISASSEMBLY ..................................................................................................................................................................	6
REMOVING AND REINSTALLING THE MAIN PARTS .....................................................................................................	9
ADJUSTMENT .................................................................................................................................................................	10
NOTES ON SCHEMATIC DIAGRAM ..............................................................................................................................	14
TYPES OF TRANSISTOR AND LED ...............................................................................................................................	14
BLOCK DIAGRAM ...........................................................................................................................................................	15
SCHEMATIC DIAGRAM / WIRING SIDE OF P.W.BOARD .............................................................................................	18
VOLTAGE ........................................................................................................................................................................	36
WAVEFORMS OF CD CIRCUIT ......................................................................................................................................	37
TROUBLESHOOTING .....................................................................................................................................................	38
FUNCTION TABLE OF IC ................................................................................................................................................	42
FL DISPLAY .....................................................................................................................................................................	50
REPLACEMENT PARTS LIST/EXPLODED VIEW

This document has been published to be used

SHARP CORPORATION– 1 –	for after sales service only.
	The contents are subject to change without notice.

CD-M8000W/CP-M8000

SAFETY PRECAUTION FOR SERVICE MANUAL

WARNINGS

THE AEL (ACCESSIBLE EMISSION LEVEL) OF THE LASER POWER OUTPUT IS LESS THAN CLASS 1 BUT THE LASER COMPONENT IS CAPABLE OF EMITTING RADIATION EXCEEDING THE LIMIT FOR CLASS 1. THEREFORE IT IS IMPORTANT THAT THE FOLLOWING PRECAUTIONS ARE OBSERVED DURING SERVICING TO PROTECT YOUR EYES AGAINST EXPOSURE TO THE LASER BEAM.

1-WHEN THE CABINET IS REMOVED, THE POWER IS TURNED ON WITHOUT A COMPACT DISC IN POSITION AND THE PICKUP IS ON THE OUTER EDGE THE LASER WILL LIGHT FOR SEVERAL SECONDS TO DETECT A DISC. DO NOT LOOK INTO THE PICKUP LENS.

2-THE LASER POWER OUTPUT OF THE PICKUP UNIT AND REPLACEMENT SERVICE PARTS ARE ALL FACTORY PRESET BEFORE SHIPMENT.

DO NOT ATTEMPT TO READJUST THE LASER PICKUP UNIT DURING REPLACEMENT OR SERVICING. 3-UNDER NO CIRCUMSTANCES STARE INTO THE PICKUP LENS AT ANY TIME.

4-CAUTION-USE OF CONTROLS OR ADJUSTMENTS, OR PERFORMANCE OF PROCEDURES OTHER THAN THOSE SPECIFIED HEREIN MAY RESULT IN HAZARDOUS RADIATION EXPOSURE.

Laser Diode Properties

Material: GaAIAs

Wavelength: 780 nm

Emission Duration: continuous

Laser Output: max. 0.6 mW

VOLTAGE SELECTION

Before operating the unit on mains, check the preset voltage. If the voltage is different from your local voltage, adjust the voltage as follows.

Turn the selector with a screwdriver until the appropriate voltage number appears in the window (110 V, 127 V, 220 V or 230 V-240 V AC).

AC POWER SUPPLY CORD AND AC PLUG ADAPTOR

QACCE0014AW00						QPLGA0005AWZZ

– 2 –

CD-M8000W/CP-M8000

FOR A COMPLETE DESCRIPTION OF THE OPERATION OF THIS UNIT, PLEASE REFER TO THE OPERATION MANUAL.

SPECIFICATIONS

CD-M8000W		CP-M8000

General

Power source	AC 110/127/220/230 - 240 V, 50/60 Hz
Power consumption	180 W
Dimensions	Width: 270 mm (10-5/8")
	Height: 330 mm (13")
	Depth: 360 mm (14-3/16")
Weight	11.7 kg (25.7 lbs.)

Amplifier

Output power	MPO: 860 W (430 W + 430 W) (10 % T.H.D.)
	RMS: 500 W (250 W + 250 W) (10 % T.H.D.)
	RMS: 360 W (180 W + 180 W) (0.9 % T.H.D.)
Output terminals	Speakers: 6 ohms
	Headphones: 16 - 50 ohms (recommended: 32 ohms)
Input terminals	Video/Auxiliary (audio signal): 500 mV/47 k ohms
	Microphone: 1 mV/600 ohms

CD player

Type	3-disc multi-play compact disc player
Signal readout	Non-contact, 3-beam semiconductor laser pickup
D/A converter	1-bit D/A converter
Frequency response	20 - 20,000 Hz
Dynamic range	90 dB (1 kHz)

Tuner

Frequency range	FM: 88 - 108 MHz
	AM: 531 - 1,602 kHz

Cassette deck

Frequency response	50 - 14,000 Hz (Normal tape)
Signal/noise ratio	55 dB (TAPE 1, playback)
	50 dB (TAPE 2, recording/playback)
Wow and flutter	0.3 % (WRMS)

Type	4-way type speaker system
	Super Tweeter
	10 cm (4") Tweeter
	10 cm (4") Midrange
	25 cm (10") Woofer
Maximum input power	500 W
(Total)
Rated input power	250 W
(Total)
Impedance	6 ohms
Dimensions	Width: 465 mm (18-5/16")
	Height: 330 mm (13")
	Depth: 373 mm (14-11/16")
Weight	10.1 kg (22.2 lbs.)/each

Specifications for this model are subject to change without prior notice.

– 3 –

CD-M8000W/CP-M8000

NAMES OF PARTS

CD-M8000W

Front panel

1.Disc Tray

2.Timer Set Indicator

3.On/Stand-by Button

4.Tuner (Band) Button

5.CD Button

6.Headphone Socket

7.Microphone Level Control

8.Microphone Socket

9. Tape (1 2) Button

10.Video/Auxiliary Button

11.Equaliser Mode Select Button

12.Monster Bass/Demo Mode Button (with Indicator)

13.Disc Tray Open/Close Button

14.Disc Skip Button

15.Volume Control

16.Tape 1 Cassette Compartment

17.Tape 2 Cassette Compartment

18.CD Track Down or Fast Reverse, Tape 2 Fast Wind, Tuner Preset Down Button

19.CD Track Up or Fast Forward, Tape 2 Fast Wind, Tuner Preset Up Button

20.Clock Button

21.Timer/Sleep Button

22.Tape 2 Reverse Mode Select Button

23.Tape 2 Reverse Play Button (with Indicator)

24.CD Play or Repeat, Tape 1 Play,

Tape 2 Forward Play Button(with Indicator)

25.CD or Tape Stop Button (with Indicator)

26.Tuning and Time Down Button

27.Memory/Set Button

28.Tape 2 Record Pause Button

29.Tuning and Time Up Button

1
2
3	9
	10

	4
	5	11
	6	12
		13
	7	14
		15
	8

			16
18	19	20 21	17

22 23 24 25 26 27 28 29

Display

1.CD Pause Indicator

2.Disc Number Indicators

3.Tape 2 Record Indicator

4.FM Stereo Mode Indicator

5.FM Stereo Receiving Indicator

6.Timer Play Indicator

7.Sleep Indicator

8.Timer Recording Indicator

9.CD Play Indicator

10.CD Repeat Play Indicator

11.Karaoke Mode Indicator

12.Tape Reverse Mode Indicator

13.Tape 2 Reverse Play Indicator

14.Tape 1 Play or Tape 2 Forward Play Indicator

15.Memory Indicator

1					2		3		4	5 6	7	8
9													11
													12
10
										13	14	15

– 4 –

CD-M8000W/CP-M8000

CD-M8000W

Rear panel

1.Cooling Fan

2.AC Voltage Selector

3.AC Power Lead

4.Transport Screw

5.FM 75 Ohms Aerial Terminal

6.	FM Aerial Earth Terminal	1
7.	AM Loop Aerial Socket
8.	Span Selector Switch	2
9.	Video/Auxiliary (Audio Signal) Input Sockets
10. Speaker Terminals
Note:
This product is equipped with a cooling fan inside, which begins to run at a specified		3
volume level for better heat radiation.

4

5 6 7

8

9 10

Remote control

1.Remote Control Transmitter

2.Disc Number Select Buttons

3.CD Random Button

4.CD Memory Button

5.CD Track Up or Fast Forward, Tape 2 Fast Wind Button

6.Tuner Preset Up Button

7.Tape 2 Reverse Play Button

8.Tape 2 Record Pause Button

9.Tuner Preset Down Button

10.CD Button

11.Tuner (Band) Button

12.Equaliser Mode Select Button

13.Monster Bass Button

14.On/Stand-by Button

15.Karaoke Mode Button

16.Echo Level Up and Down Buttons

17.CD Clear Button

18.CD Track Down or Fast Reverse, Tape 2 Fast Wind Button

19.CD Play or Repeat, Tape 1 Play, Tape 2 Forward Play Button

20.CD Pause Button

21.CD or Tape Stop Button

22.Video/Auxiliary Button

23.	Tape (1 2) Button
24.	Volume Up and Down Buttons

Buttons with " " mark in the illustration can be operated on the remote control only.

CP-M8000

1.	Tweeter	1
2.	Super Tweeter	2
3.	Midrange
4. Woofer		3
5.	Bass Reflex Duct
6.	Speaker Terminals	4

	1
	2	14
		15
	3	16
	4	17
	5	18
	6	19
	7
		20
	8
		21
	9
		22
	10
	11	23
	12

24

13

5

6

– 5 –

CD-M8000W/CP-M8000

DISASSEMBLY

Caution on Disassembly

Follow the below-mentioned notes when disassembling the unit and reassembling it, to keep it safe and ensure excellent performance:

1.Take cassette tape and compact disc out of the unit.

2.Be sure to remove the power supply plug from the wall outlet before starting to disassemble the unit.

3.Take off nylon bands or wire holders where they need to be removed when disassembling the unit. After servicing the unit, be sure to rearrange the leads where they were before disassembling.

4.Take sufficient care on static electricity of integrated circuits and other circuits when servicing.

CD-M8000W

STEP	REMOVAL		PROCEDURE					FIGURE
1	Top Cabinet	1.	Screw .......................		(A1) x4			6-1
2	Side Panel	1.	Screw .......................		(B1) x8			6-1
	(Left/Right)
3	CD Player Unit/	1.	Turn on the power supply,			...		6-2
	CD Tray Cover		open the loading tray, take out
			the CD tray cover, and close.
			(Note 1)
		2.	Screw .......................		(C1) x1
		3.	Hook .........................		(C2) x3
		4.	Hook .........................		(C3) x2
		5.	Socket ......................		(C4) x2
4	Rear Panel with	1.	Screw .......................		(D1) x9			6-2
	Fan Motor	2.	Socket ......................		(D2) x1
5	Main PWB	1.	Screw .......................		(E1) x2			6-2
		2.	Flat Cable ................		(E2) x1			7-1
		3.	Socket ......................		(E3) x4
6	Amp. PWB	1.	Screw .......................		(F1) x6			7-2
		2.	Socket ......................		(F2) x4
		3.	PWB Holder .............		(F3) x5
		4.	Flat Wire ...................		(F4) x1
7	Front Panel	1.	Screw .......................		(G1) x3			7-2
		2.	Hook .........................		(G2) x2			7-1
8	Mic PWB	1.	Screw .......................		(H1) x2			7-3
		2.Tip .............................			(H2) x1
9	Display PWB	1.	Knob ..........................		(J1) x1			7-3
		2.	Screw ......................		(J2) x15
		3.	Flat Cable .................		(J3) x1
10	Tape Mechanism	1.	Open the cassette holder.					7-3
		2.	Screw .......................		(K1) x5
11	Headphones PWB	1.	Screw .......................		(L1) x1			7-3
12	Turntable	1. Hook ........................			(M1) x2			7-4
		2.	Cover ......................		(M2) x1
13	Loading Tray	1.	Turn fully the lock lever in the .					6-3
			arrow direction
				......................
		2.	Push the loading	tray backward to				7-5
			engage the claw with the groove
			and remove it in the direction
			of the arrow. .................		(N1) x6
14	CD Servo PWB	1.	Screw .......................		(P1) x2			7-6
	(Note 2)	2.	Hook .........................		(P2) x1
		3.	Socket ......................		(P3) x4
15	CD Mechanism	1.	Hook .........................		(Q1) x2			8-1
		2.	Hook .........................		(Q2) x2

Note 1: How to open the changer manually. (Fig. 6-3)

1.In this state, turn fully the lock lever in the arrow direction through the hole on the loading tray bottom.

2.After that, push forward the Loading tray.

CD-M8000W

Top Cabinet

Front (A1)x2 Panel ø3x12mm

Side Panel
(Right)
(B1)x2			(A1)x2
ø3x10mm			ø3x12mm
			Side Panel
			(Left)
(B1)x4			(B1)x2
ø3x10mm
			ø3x10mm
	Rear
	Panel
	Figure 6-1
	CD Tray Cover		(C2)x3
(C3)x1	2	1
Pull
(C4)x2
CD Servo			1
PWB			2
			CD Player
Rear			Unit
Panel			(C3)x1
(C1)x1
ø3x10mm			Main PWB
			Lug Wire
(D1)x8			(E1)x1
ø3x10mm
			ø3x10mm
(D2)x1
			(D1)x1
		(E1)x1	ø3x10mm
Amp.
		ø3x10mm
PWB

Figure 6-2

Lock Lever

CD Player Unit

(Bottom View)

Figure 6-3

Note 2:

1.After removing the connector for the optical pickup from the connector, wrap the conductive aluminium foil around the front end of the connector so as to protect the optical pickup from electrostatic damage.

Note 3:

1.Be careful not to break the claw of the CD mechanism.

2.When fining back the cam gear assembly, let it lock by front movement.

– 6 –

Tape	(E2)x1 (E3)x1 Mic PWB
Mechanism
(E3)x1	(E3)x1
Power PWB		Front
		Panel
(G2)x1
Transformer
PWB		Main PWB
		(G2)x1
		Main PWB
		(E3)x1
	Figure 7-1	Amp.
		PWB

(F1)x4	(F1)x1
ø3x6mm
	ø3x10mm
	(F2)x1
	(F2)x3	Headphones
		PWB
(F1)x1		(F4)x1
ø3x10mm
Amp.
PWB
		Front Panel

(F3)x5 Push

(G1)x3 ø3x8mm

Display PWB

(J2)x15

ø3x10mm

Tape

Mechanism

(K1)x5

ø3x10mm

Figure 7-2

(J3)x1

Front Panel

(J1)x1

(H2)x1

(H1)x2

ø3x10mm

Mic

PWB

Open

Headphones

PWB

Lug Wire	Cassette

Holder	(L1)x1
	ø3x10mm

Figure 7-3

CD-M8000W/CP-M8000

(M2)x1

Turntable

Loading

Tray

(M1)x2

CD Player Unit

Figure 7-4

(N1)x3 Loading Tray

3

2

1

(N1)x3

Figure 7-5

(P1)x2

ø3x10mm

		Loading
(P3)x2	CD Servo	Tray
	PWB

(P2)x1

(P3)x2

Figure 7-6

– 7 –

CD-M8000W/CP-M8000

	CD	(Q2)x2
	Mechanism

(Q1)x1

(Q1)x1

Loading Tray

Figure 8-1

CP-M8000

STEP	REMOVAL		PROCEDURE		FIGURE
1	Front Panel/	1. Net Ass'y ................		(A1) x1	8-2
	Supper Tweeter	2.	Catching Holder .....	(A2) x4
		3.	Screw .....................	(A3) x4
		4.	Screw .....................	(A4) x2	8-3
2	Woofer	1. Screw .....................		(B1) x4	8-3
3	Tweeter	1. Screw .....................		(C1) x4	8-3
4	Midrange	1. Screw .....................		(D1) x4	8-3

Speaker Box Ass'y

Front Panel

(A3)x4

ø4x20mm

(A2)x4

(A1)x1

Front Panel

Driver should be pried away

from Speaker Box.

Front Panel

Super
Tweeter	(A4)x2
	ø3x10mm

Speaker Box Ass'y

Woofer

Tweeter

(B1)x4

ø4x20mm

(C1)x4

ø3x12mm

(D1)x4	Midrange
ø3x12mm

Speaker Box Ass'y

Figure 8-3

Figure 8-2

– 8 –

CD-M8000W/CP-M8000

REMOVING AND REINSTALLING THE MAIN PARTS

TAPE MECHANISM SECTION

Perform steps 1 to 7 and 10 of the disassembly method to remove the tape mechanism.

How to remove the record/playback and erase heads (TAPE 2) (See Fig. 9-1)

1.When you remove the screws (A1) x 2 pcs., the record/ playback head and three-dimensional head of the erase head can be removed.

How to remove the playback head (TAPE 1) (See Fig. 9-2)

1.When you remove the screws (B1) x 2 pcs., the playback head can be removed.

How to remove the pinch roller (TAPE 1/2) (See Fig. 9-3)

1. Carefully bend the pinch roller pawl in the direction of the arrow <A>, and remove the pinch roller (C1) x 1 pc., in the direction of the arrow <B>.

Note:

When installing the pinch roller, pay attention to the spring mounting position.

How to remove the belt (TAPE 2) (See Fig. 9-4)

1.Remove the main belt (D1) x 1 pc., from the motor side.

2.Remove the FF/REW belt (D2) x 1 pc.

TAPE 2

Clutch Ass'y

Record/Playback

Head

Erase Head

(A1) x 2 Ø2 x 6mm

Figure 9-1

TAPE 1

Clutch Ass'y

Playback

Head

(B1) x 1 Ø2 x 9mm

(B1) x 1 Ø2 x 5mm

Figure 9-2

How to remove the belt (TAPE 1) (See Fig. 9-4)

1.Remove the main belt (E1) x 1 pc., from the motor side.

2.Remove the FF/REW belt (E2) x 1 pc.

How to remove the motor (See Fig. 9-5)

1. Remove the screws (F1) x 2 pcs., to remove the motor.

Tape

Motor

Clutch Ass'y

(F1) x 2

Ø2.6 x 5mm

Figure 9-5

	Pinch
	Roller
Pinch Roller	Pawl
(C1) x 1	Pull <A>
	Pull
	<B>

Figure 9-3

		Tape
FF/REW	Tape	Motor
Roller	Motor		TAPE 1
TAPE 2
FF/REW		TAPE 2	Main Belt
Belt			(E1) x 1
		Main Belt
(D2) x 1
		(D1) x 1
Main Belt			TAPE 1
(D1) x 1			FF/REW
Flywheel
			Belt
Ass'y			(E2) x 1
Main Belt
(E1) x 1
		Flywheel	FF/REW
Figure 9-4		Ass'y	Roller

– 9 –

CD-M8000W/CP-M8000

CD MECHANISM SECTION

Perform steps 1, 2, 3, 12, 13, 14 and 15 of the disassembly method to remove the CD mechanism.

How to remove the loading motor (See Fig. 10-1)

1.Bend the hooks (A1) x 5 pcs., to remove the loading motor.

2.Remove the drive belt (A2) x 1 pc.

	Loading Motor
Loading	CD Loading
Tray	Motor PWB
	(A1) x 1
	(A1) x 2
	(A1) x 2
	Loading
	Motor
	Pulley
	Drive Belt
	(A2) x 1
	Figure 10-1

How to remove the pickup (See Fig. 10-2)

1.Remove the stop washer (B1) x 1 pc., to remove the gear (B2) x 1 pc.

2.Remove the screws (B3) x 2 pcs., to remove the shaft (B4).

3.Remove the pickup.

Note

After removing the connector for the optical pickup from the connector wrap the conductive aluminium foil around the front end of connector so as to protect the optical pickup from electrostatic damage.

(B3) x 2	Stop Washer
ø2.6 x 6mm (B1) x 1

Pickup

	Shaft	CD Mechanism
		Gear
	(B4) x 1
		(B2) x 1
		Figure 10-2

ADJUSTMENT

MECHANISM SECTION

∙ Driving Force Check

Torque Meter	Specified Value
Play: TW-2111	Tape 1: Over 80 g
	Tape 2: Over 80 g

∙ Torque Check

Torque Meter	Specified Value
	Tape 1	Tape 2
Play: TW-2111	30 to 80 g.cm	30 to 80 g.cm
Fast forward: TW-2231	—	70 to 180 g.cm
Rewind: TW-2231	—	70 to 180 g.cm

∙ Tape Speed

	Test Tape	Adjusting	Specified	Instrument
		Point	Value	Connection
Normal	MTT-111	Variable	3,000 ± 30 Hz	Speaker
speed		Resistor in		terminal
		motor.		(Load
				resistance:
				6 ohms)

TAPE MECHANISM

Tape

Motor

Variable Resistor in motor

Figure 10-3

– 10 –

TUNER SECTION

fL: Low-range frequency fH: High-range frequency

∙ AM IF/RF

Signal generator: 400 Hz, 30%, AM modulated

Test Stage	Frequency	Frequency	Setting/	Instrument
		Display	Adjusting	Connection
			Parts
AM IF	450 kHz	1,602 kHz	T351	*1
AM Band	—	531 kHz	(fL): T306	*2
Coverage			1.1 ± 0.1 V
AM Tracking	990 kHz	990 kHz	(fL): T303	*1

*1. Input: Antenna	Output: TP302
*2. Input: Antenna	Output: TP301
SO301	CNP301
	AM LOOP		MAIN PWB
FM ANTENNA	ANTENNA
TERMINAL
	IC301	T303	AM
			TRACKING fL
TP301	T302	L312
C393	FM IF	FM RF	T306
T301
FM BAND			AM BAND
COVERAGE fL
			COVERAGE fL
T351
AM IF		TP302
			R357

Figure 11-1 ADJUSTMENT POINTS

∙ FM RF

Signal generator: 1 kHz, 40 kHz dev., FM modulated

Test Stage	Frequency	Frequency	Setting/	Instrument
		Display	Adjusting	Connection
			Point
FM Band	—	87.50 MHz	T301(fL):	*1
Coverage			3.4 V ± 50 mV
FM RF	98.00 MHz	98.00 MHz	L312	*2
	(10-30 dB)

*1. Input: Antenna		Output: TP301
*2. Input: Antenna		Output: Speaker Terminal
∙ FM IF
Signal generator: 10.7 MHz, FM modulated
Test Stage	Frequency		Frequency	Setting/	Instrument
			Display	Adjusting	Connection
				Point
IF	10.7 MHz		98 MHz	T302	*1
				(Turn the
				core of trans-
				former T302
				fully counter-
				clock wise)
*1. Input: Antenna		Output: TP301

CD-M8000W/CP-M8000

CD SECTION

•Adjustment

Since this CD system incorporates the following automatic adjustment functions, readjustment is not needed when replacing the pickup. Therefore, different PWBs and pickups can be combined freely.

Each time a disc is changed, these adjustments are performed automatically. Therefore, playback of each disc can be performed under optimum conditions.

Items adjusted automatically

(1)Offset adjustment (The offset voltage between the head amplifier output and the VREF reference voltage is compensated inside the IC.)

*Focus offset adjustment

*Tracking offset adjustment

(2)Tracking balance adjustment (waveform drawing Fig. 11-2 EFBL)

(3)Gain adjustment (The gain is compensated inside the IC so that the loop gain at the gain crossover frequency will be 0 dB.)

*Focus gain adjustment

*Tracking gain adjustment

CD ERROR CODE DESCRIPTION

	Error	Explanation
	01	When Pickup set inner position, inner switch
		cannot detect 'ON' level for 10 secs.
		When tray moves to Open/Close, Open/Close switch
	10*	cannot detect 'ON' level for 7 secs.
		When disc table rotate to target position.
		Clamp switch cannot detect 'ON' level for 7 secs.
		When disc table set to Disc1 position for 1 st time,
	11*	"CLAMP SW", "DISC NO SW" and "OPEN/CLOSE"
		cannot detect 'ON' level for 14 secs.
	31	When it changes to CD function, DSP cannot read
		initial data.

* 'CHECKING'

If Error is detected, 'CHECKING' will be display instead of 'ERCD**' display. 'ER-CD**' display will only be display when error had been detected for the 5 th times.

	Stopped		T						1999/04/05	20:26:47
	CH1=500 mV			CH2=200 mV		CH3=1 V			500 ms/div
	DC	10:1		DC	10:1	DC 10:1			(500 ms/div)
									NORM:20 kS/s
T	FDO
1
3	TE
	EFBL
2
										CH2
										v/DIV
										200 mV
	=Filter=			=Offset=		=Record Length=			=Trigger=
Smoothing : ON			CH1 :		0.000 V	Main :	100 K	Mode : SINGLE
BW	: FULL		CH2 :		0.000 V	Zoom :	2 k	Type	: EDGE CH1
			CH3 :		0.00 V			Delay :		0.0 ns
			CH4 :		0.00 V			Hold off :		0.2 s
					Figure 11-2

– 11 –

CD-M8000W/CP-M8000

TEST MODE

• Setting the test mode

Any one of test mode can be set by pressing several keys as follows. <X-BASS> + <CD> + <POWER> TEST:CD operation test

Function:-CD test mode. -Enter test mode.

CD T E S T

IL isn't done

OPEN/CLOSE operation is using manual.

<<>>, <<>> buttons make pick's slide possible.

<<PLAY>> key input.

Do TOC IL. Do normal play When these following key is input into PLAY key, track number can be appoint directly

<<MEMORY>> key input

	Adjustment result
	automatically will
	display as below
	for each 2 sec :		<< 1>> key: Track 4
	a) "FOFF_XX"		<< 2>> key: Track 9
	b) "TOFF_XX"		<< 3>> key: Track 15
	c) "TBAL_XX"
	d) "TGAN_XX"
	f) "FGAN_XX"
	g) "RFLS_XX"
explanation:
a)	Focus off set	="FOFF_XX"
b)	Tracking off set	="TOFF_XX"
c)	Tracking balance	="TBAL_XX"	<<STOP>> key input.
d)	Tracking Gain	="TGAN_XX"
f)	Focus Gain	="FGAN_XX"
g)	RF level shift	="RFLS_XX"	STOP

VOL — Last memory

BAL — CENTER

P.GEQ — FLAT

X-BASS — OFF

To cancel : Power OFF

<<MEMORY>> key input.

Laser ON.

<<MEMORY>> key input.

Tracking OFF play at that specific point.

<<MEMORY>> key input.

Tracking ON play from that specific point.

<<MEMORY>> key input.

Adjustment result automatically will display as below for each 2 sec :

a)"FOFF_XX"

b)"TOFF_XX"

c)"TBAL_XX"

d)"TGAN_XX"

f)"FGAN_XX"

g)"RFLS_XX"

<<STOP>> key input.

STOP

Sliding the PICKUP with <<>>, <<>> button

must only be in STOP mode.

– 12 –

			CD-M8000W/CP-M8000
Standard Specification of Stereo System Error Message Display Contents
	Error Contents	DISPLAY	Notes
TAPE	Mechanism Error.	'ER-TA**'	00: Tape Mechanism Error.
			01: Initial Error.
			02:
			03:
CD	Pickup Mechanism Error.	'ER-CD**'	01: PU-IN SW Detection NG.
			02:
			03:
			04:
	CD Changer Mechanism Error.	'ER-CD**'	10: Changer Error.
		(*)	11: Initial Error.
			12:
			13:
	CD DSP Communication Error	'ER-CD**'	31: DSP COMMUNICATION ERROR
	Focus Not Match.	'NO DISC'
	IL Time Over.	'NOT READ'
TUN	PLL Unlock.	'ER-TU**'	00: TUN Error.
			01: PLL Unlock.
			02:
			03:

(*) CHECKING:

If CD changer mechanism error is detected, 'CHECKING' will be display instead of 'ER-CD**' display 'ER-CD**' will only be display when CD changer mechanism error had been detected for the 5 th times.

Speaker abnormal detection and +B PROTECTION display

In case speaker abnormal detection or +B PROTECTION had occured, it can be check by pressing 'POWER', 'VIDEO' and 'X- BASS' key twice. Display will show "S** B**". S is referring to speaker abnormal detection and B is referring to +B PROTECTION. ** is in hex valve.

+B PROTECTION is condition when irregular process occur on power supply line.

– 13 –

CD-M8000W/CP-M8000

NOTES ON SCHEMATIC DIAGRAM

∙Resistor:

To differentiate the units of resistors, such symbol as K and M are used: the symbol K means 1000 ohm and the symbol M means 1000 kohm and the resistor without any symbol is ohm-type resistor. Besides, the one with “Fusible” is a fuse type.

∙Capacitor:

To indicate the unit of capacitor, a symbol P is used: this symbol P means pico-farad and the unit of the capacitor without such a symbol is microfarad. As to electrolytic capacitor, the expression “capacitance/withstand voltage” is used.

(CH), (TH), (RH), (UJ): Temperature compensation (ML): Mylar type

(P.P.): Polypropylene type

∙Schematic diagram and Wiring Side of P.W.Board for this model are subject to change for improvement without prior notice.

∙The indicated voltage in each section is the one measured by Digital Multimeter between such a section and the chassis with no signal given.

1.In the tuner section, indicates AM indicates FM stereo

2.In the main section, a tape is being played back.

3.In the deck section, a tape is being played back. ( ) indicates the record state.

4.In the power section, a tape is being played back.

5.In the CD section, the CD is stopped.

∙Parts marked with “ ” ( ) are important for maintaining the safety of the set. Be sure to replace these parts with specified ones for maintaining the safety and performance of the set.

REF. NO	DESCRIPTION	POSITION
SW1	OPEN/CLOSE	ON—OFF
SW2	CLAMP	ON—OFF
SW3	DISC NUMBER	ON—OFF
SW4	PICKUP IN	ON—OFF
SW601	SPAN SELECTOR	50 kHz/9 kHz
SW701	ON/STAND-BY	ON—OFF
SW702	FAST REWIND/PRESET DOWN	ON—OFF
SW703	FAST FORWARD/PRESET UP	ON—OFF
SW704	STOP	ON—OFF
SW705	PLAY	ON—OFF
SW706	REVERSE PLAY	ON—OFF
SW707	REVERSE MODE	ON—OFF
SW711	CD	ON—OFF
SW712	TUNER (BAND)	ON—OFF

REF. NO	DESCRIPTION	POSITION
SW713	TAPE	ON—OFF
SW714	VIDEO/AUX	ON—OFF
SW715	TIMER/SLEEP	ON—OFF
SW716	TUNING/TIME UP	ON—OFF
SW717	REC PAUSE	ON—OFF
SW718	MEMORY/SET	ON—OFF
SW719	TUNING/TIME DOWN	ON—OFF
SW720	CLOCK	ON—OFF
SW723	DISC SKIP	ON—OFF
SW724	OPEN/CLOSE	ON—OFF
SW725	EQUALIZER	ON—OFF
SW726	MONSTER BASS	ON—OFF
SW801	VOLTAGE SELECTOR	230-240 V

TYPES OF TRANSISTOR AND LED

FRONT

FRONT

VIEW

FRONT

VIEW

VIEW

E

C B

(S) (G) (D)

(1)

(2) (3)

B C E

KTA1266 GR

KTC3203 Y

(1)

(2) (3)

KTA1273 Y

KRC102 M

SRL342VCJ

KTC2026

KTA1274 Y

KRC104 M

4204UYT7

KTC3194 Y

KRA107 M

A503BC2E

KTC3199 GR

2SA1015 GR

2SC1845 F

– 14 –

			TO MAIN SECTION							TO DISPLAY SECTION
	R-CH	AGND	L-CH	DGND	+5V (+B7)	+5V (+B8)	DGND (DRIVER)	+6.5V (+B4)	WRQ	DRF	CE	DO	DI	CL	CD RES	CLAMP SW	O/C	DISC NO
CNP7	1	2	3	4	5	6	7	8	1	2	3	4	5	6	7	8	9	10	CNP8

CD-M8000W/CP-M8000

		SW2	SW3
			DISC
	SW1	CLAMP
			NUMBER
	OPEN/		M3
	CLOSE		T/T UP DOWN
			M LOADINGMOTOR

+–

1	2	3	4	5	6	BI4
1	2	3	4	5	6	CNS4
1	2	3	4	5	6	CNP4

												Q3
						42	68					25		70	71
		61	CE			LCHO	VDD5					CONT4		CONT3	CONT2	75
																69
		62	CLK													57
		63	DI													56
		64	DO													55
		65 WRQ														51
																50
		66	RES
																44
		67	DRF						IC1
																43
							LC78645NE									40
																37
							CD SERVO
																28
																19
	MHz	48	XOUT															1	2	17	25	41 42		38 39
XL1															CONT5 26
	33.8688
		49	XIN												SLDO 23											35
				ADAVDD											SPDO 22		40	VCC4
			RFVDD																			IC2				~
					VDD XVDD	VVDD	LVDD	RVDD							FDO 21
									FIN1	FIN2	TIN1	TIN2	LDS	LDD												29
															TDO	20										22
							41	46					79	80							M63001FP
			5	18 38 47 77					7	8	9	10				+5V	18	VCC1	FOCUS/TRACKING/							21
																	24	VCC2			SPIN/SLED
		+3.3V															23									14
																	28	VCC3				DRIVER				~
																										8
+3.3V	Q2																	4	5	6	7
CONSTANT							ZD1								LASER							15	16	26	27
VOLTAGE							3.3V								DRIVER
														Q1	+3.3V
+5V(+B7)
PICKUP UNIT												FOCUS COIL	TRACKING COIL
																				M1		+
																			SPINDLE			M
																			MOTOR
																						–
																						–				SW4
																				M2		M
																										PICKUP IN
																				SLED
																				MOTOR		+

Figure 15 BLOCK DIAGRAM (1/3)

– 15 –

CD-M8000W/CP-M8000

IC301

+B6

+B

FM

ZD351

ANTENNA SO301

TA7358AP

+B6

+B6

5.1V

FM ANTENNA

FM FRONT END

FM IF

10.7 MHz

TERMINAL

BF301

1

6

T302

CF303

X351

9

CF351

B.P.F

T351

456 kHz

3

4

5

7

CF352

8

1

2

5

9

8

17 13

FM

OSC

4

AM IF

AM IF

FM/AMGND

OUT FM+B

MPXIN

FM/AM MO/ST

ANTENNA

OSC

AMMIX

VCO

FM RF L312

T301

FM DET

L 14

AM LOOP

FM

R 15

CNP301

AM TRACKING

24

23

21

7

18

16

12

OSCAMOUT

OSCAM IN

RFAMIN

STEREO

LA1832S

OSC BUFF

Q302

IC302

1

AM BAND

FM IF DET./

T303

T306 COVERAGE

FM MPX./

2

AM IF

ICK1

VT

X352

4.5 MHZ

M65856SP

CE DI CLK

DO

JK1

MIC AMP.

+B5

IC303

MIC

20

1

22 15 16

11

3

4

5

6

5

LC72131

OSC

FM/AM

MO/ST

PLL(TUNER)

LATCH 40

8

17

CLOCK 41

6

+B5

7

9

10

21

MIC IN

DATA 42

1 L

+B5

L OUT 36

FM+B

Q360 FM

9

2

7 R

R OUT 35

SWITCHING

12

L IN

31

IC903

3

JK690

+B5

13

R IN 32

KIA4558P

VIDEO/AUX

8 17

23

VRK1

VCC 23

OPE AMP.

L

AUX

L 9

DI 1

MIC

R

R 16

CE 2

VOLUME

MCLKCONT

2

TAPE

L 10

IC601 CLK 24

–20dB

VACL

3

R 15

LC75341

ATT Q6

CNS11

TUNER

L 11

1

R 14 AUDIO PROCESSOR 21 R

Q6

+B5

QK1

CNP7

2

CD

L 12

4 L

FROM CD SECTION

3

R 13

7 18

3

L

R

TAPE 1

L-CH

L(T1) 1

13

+B5

Q121

REC

R(T1) 24

P.B

P.B. HEAD R-CH

L PB

Q122

L(T2) 2

4

REC.

21

R

MUTING

R(T2) 23

SWITCHING

TAPE 2

P.B.

Q103~

L-CH

+B5

REC./P.B.

R-CH

Q106

8

HEAD

POP REDUCE 6 T1/T2

H/N 7

L REC

AC BIAS

L REC 9 REC

18

R

IC101

R REC 16

IC

11

AN7345K

12 NOR/

T1/T2 10

ALC

PLAYBACK AND RECORD

KIA4

15 HIGH

/PLAYBACK AMP.

OPE

19

SWITCHING

Q107

Q111

Q108

SWITCHING

+B5

Q109

Q110

MOTOR

DRIVER

SWITCHING

+B5

+B3

Q706

TAPE

ERASE

Q128

Q124

Q126

MECHANISM

Q707

ASS'Y

L104

HEAD

+B3

BIAS

SWITCHING

BIAS

Q708

OSC

SOLENOID

DRIVER

Figure 16 BLOCK DIAGRAM (2/3)

– 16 –

CD-M8000W/CP-M8000

FL701

FL DISPLAY

TO CD

+B5

1

5 ~ 12

13

14 ~ 19

27 ~ 32 33 ~41

45

SECTION

351

+B9

1V

TAPE

Q705

MECHANISM

ASS'Y

351

6 kHz

+B9

3

RX701

L 14

36

38

54

56 52 51 48

46

62 60 40

30 25 13

70

IN

KARAOKE LATCH

VDD

REMOTE

1

R 15

39

SENSOR 3

79 VLOAD

~

_ P

2

78

+B9

+B9

80

IC701

AVDD 34

KEY

33

~

IX0532AW

~

SW701-SW707

85

31

SW711-SW720

86

SYSTEM

37

SW723-SW726

~

MICROCOMPUTER

91

VDD

CLK DI

29

100-

RESET

VDD

CE

DO 41

92

26

93

15

1 2 4 5 6

7 8 9 10 11 12

16 17–20 2122 23 24

+B9

XL700

+B9

TO CD

4.194304 MHz

SECTION

RESET

+B7

SW601

Q709

+B9

FAN MOTOR

SPAN

DRIVER

Q907

M

M903,904

SP DET.

SELECTOR

FAN

M

MOTOR

IC901

Q903

SO901

SPEAKER

–20dB

STK41217

Q904

SP RELAY

TERMINAL

ATT

POWER AMP.

Q908

Q603

Q605

Q909

ON-OFF Q905

RL914

+B3

R

Q604

Q606

SYSTEM

L

L 18

11 L-OUT

MUTE

R 14

2 5

1

9 R-OUT

JK701

7

6

HEADPHONES

PT801

REC/PLAY

+B1

D801

POWER

TRANSFORMER

IC851 KIA7812AP VOLTAGE

REGULATOR

-B1

F805

220 V

+B2

F802

+B5

Q862

F804

T5A L 250V

8

Q863

-B2

T5A L 250V

F803

230-240 V

1

D802

T5A L 250V

IC860

M_13V

T5A L 250V

P IN

VF1

–VF

VF2

+B3

IC851

IC852

127 V

KIA4558P

LD+7V

KIA7810AP

SW801

OPE AMP.

+B4

Q866 VOLTAGE

110 V

REGULATOR

VOLTAGE

F806

VOLTAGE

A_10V

REGULATOR

SELECTOR

T1/T2

+B5

IC852

T2A L 250V

BIAS

+B7

D_5V

IC853

F807

A_5V

F801

+B8

KIA7805AP

D805,

T2A L 250V

T10A L 250V

D806

+B9

SW_5.6V

IC854

AC POWER

D809

SUPPLY CORD

PE

AN78L05

IC853, IC854

ANISM

VOLTAGE REGULATOR

T.F.

AC 110/127/220/230-240 V

S'Y

VOLTAGE

50/60 Hz

REGULATOR

D810

Q803

Figure 17 BLOCK DIAGRAM (3/3)

– 17 –

CD-M8000W/CP-M8000

A

		PICKUP UNIT
		PICKUP
		HPC1LX
	B		VCC	7	7
			VREF
				6	6
			E
				5	5
			A
				4	4
			B
				3	3
			F
				2	2
			C
				1	1
					CNS1B
	C
			TR–	1	1
			TR+
		TR+		2	2
		FO+	FO+	3	3
				4	4
		FO–
	D			5	5
			PD
		TR–		6	6
			VR
				7	7
			LD
				8	8
		GND
					CNS2B

CD MOTOR PWB-D

	M1	M	+	6	6
	SPINDLE		SPIN
E	MOTOR		–	5	5
			+
	M2			4	4
	SLED	M SLIDE		3	3
	MOTOR		–	2	2
	SW4		PU-IN
				1	1
	PICKUP IN
				CNP3A	CNS3B

F

G

CD SERVO PWB-C

				CD SIGNAL																													C34
																																	C33
																																	C32
																																	C30
																																	C57
																																	C28
						+B
																R7																	C27
		VCC														47																	C36 0.22/50
7	7												+B					+B											+B	C37	0.1				C35
6	6	VREF
		E	R6	22K
5	5																												R42
4	4	A	R5	8.2K																									1.2K
		B	R4	8.2K																									R41 12K		R40 680
3	3																				C5					R11
		F	R3	22K
2	2											R9				C3 47/25			R10		0.047					10K
		C		R1		R2 8.2K			LASER DRIVER										27K										80 79 78 77 76 75 74 73
1	1											3.3
																													FR
				8.2K																								1		VVDD PCKIST				PDO2 PDO1
CNS1A		CNP1										KTA1266GR									C6							2	EFMINLDDLDS			VVSS
																												3
											Q1								TP3		0.1
																C4												4	RF	5			8		7
																0.001		+B				R12			C8
																												5	RFVDD
																						330		0.0027									1	SLC
				C1																								6	RSVSS				2	SLCI
						C2 0.01																						7	FIN1 A
				47/25																	C50				TP1
																												8	FIN2 B
																					22P(CH)				TP2
																												9	TIN1 E
																																		LC7
															C52											C10		10	TIN2 F
																										10/50		11	VREF					CD
															0.001						C9							12	REF1	4
																	C53
			TR–																		100/10							13	FE			18		ADA
1	1																0.001											14	TEC
			TR+																													19		ADA
2	2																								C11			15	TE
			FO+																		C12											20		TDO
3	3																								0.22/50			16	RFMON	6
			FO–																		100P(CH)
																												17	JITTC
4	4																	+B				C54				+B								SBCK/FG
5	5		GND																									18		GPDAC CONT4		CONT5
																					0.022								FDO SPDO SLDO
			PD																									19
6	6																						2
			VR			C38																			R13 1K			20
7	7
			LD			0.01
8	8																											1	21 22 23 24 25 26 27 28
CNS2A		CNP2
				+B				+B																				R14		R16 1K	1K		1K
						C39
								R44 12K																				1K R151K
						100/10
		SP+		C40	220/6.3	MUTE 21	VREF	STANDBY	VCC	SLDO	SL+		SL–							GND	TR–	TR+	FO–		FO+		FD		TO		R17		R18
6	6						20	19	18	17	16		15	14	13	12	11	10	9	8	7	6	5		4	3		2	1
		SP–
5	5
		SL+
4	4
		SL–															IC2
3	3
		PUIN								+
2	2								+						M63001FP
		GND
1	1													FOCUS/TRACKING/
										+
CNS3A		CNP3												SPIN/SLED DRIIVER
																																		DS1
																																		3
								+
							+		+
								+
						+																						LD M–	LD M+
						22	23	24	25	26	27		28	29	30	31	32	33	34	35	36	37	38		39	40		41	42
							VCC2		SPO	SP+	SP-		VCC3										M–		M+	VCC4
																		C41
																		100/10			C46
				+B									+B								100/10					+B

H

• NOTES ON SCHEMATIC DIAGRAM can be found on page 14.

1

2

3

4

5

6

Figure 18 SCHEMATIC DIAGRAM (1/10)

– 18 –

CD-M8000W/CP-M8000

C34

100P(CH)

R38

1K

C33

0.022

R37

1K

C32

100P(CH)

R36

1K

R35

1K

C30

100P(CH)

R34

1K

1

WRQ

C57

56P(CH)

R33

1K

2

DRF

PWB

C28

100P(CH)

R32

1K

3

CE

C27

0.022

+B

+B

4

DO

CNS701

P23 12 - C FROM DISPLAY

5

DI

C37

0.1

C36

0.22/50

C35 0.047

6

CL

R29

R31

7

CD RES

8

CLAMP SW

2.2K

1K

9

O/C

R41

12K

R39 680

R40

680

12

R28

10

DISC NO

2.2K

CNP8

77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61

11

VVDD PCKIST

PDO2 PDO1

CONT2 CONT3

VSS VDD5 DRF

*WRQ

DO

DI

60

VVSS

*RES

LRCKCLCE

59

10

58

5

8

7

3

ASDFIN

57

+B

ASDACK

56

1

SLCO

DATA 60

ASLRCK

55

2

SLCIST

BCK

59

16MOUT

54

IC1

EFLG

53

XL1

C2F

52

33.8688 MHz

1

R-CH

XVSS

LC78645NE

51

2

AGND

C PWB

FSX/16MIN

50

4

CD SERVO

3

L-CH

XIN

49

CNS11

R43

P21 12 - FROM MAIN

4

DGND

ADAVDD

XOUT

48

+B

+B

18

LVSS

43

220

C42

D_5V

XVDD

47

5

19

ADAVSS

LCHO

42

RVDD

46

+B

R22

0.01

6

A_5V

20

TDO

LVDD 41

ZD1

100

6

RCHO

45

7

D_GND (DRIVER)

DZ3.3BSB

+B

SBCK/FG

DEFECT V/*P FSEQ

RVSS

44

C24

10/25

0.82 H

8

+6.5V

GPDAC CONT4

43

CONT5

MONI1 MONI2 MONI3

MONI4

MONI5

VDD DOUT TEST

C16

CNP7

42

C51

VSS

+B

330/6.3

R25

41

0.022

0.001

2.2K

24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40

C44

C23

C26

L1

10/25

R24

0.0015

C48

R16

1K

1K

1K

9

C25

R27

0.022

2.2K

0.0015

100/10

C22

10K

C13

C14

R17

R18

0.01

0.022

R26

10K

CONSTANT

R51

VOLTAGE

3.3

+B

R20

+B

+B

KTC3203 Y

(1/4W)

R23 220

10K

Fusible

Q2

C18

R47

100

100/10

R46

R45

ZD2

DZ3.9BSB

820

820

+B

+B

CD LOADING

D2

D1

DS1SS133

+B

3

2

DS1SS133

+B

CNS4

MOTOR PWB-E

CNP4

Q3

BI4

SW1

1 KRC102 M

1

1

1

OPEN/CLOSE

2

2

2

SW2

3

3

3

CLAMP

4

4

4

SW3

5

5

5

+ M

DISC Number

M3

6

6

6

–

T/T UP/DOWN

+B

LOADING MOTOR

R49

+B

1

• The numbers 1 to 12 are waveform numbers shown in page 37.

7

8

9

10

11

12

Figure 19 SCHEMATIC DIAGRAM (2/10)

– 19 –

CD-M8000W/CP-M8000

SYSTEM

R607

C613

IC601

MUTE

10/50

+B

10K

LC75341

IC601

A

R621

R613

AUDIO

LC75341

R609

560

R615

24

2.2K

PROCESSOR

1

DI

330

2.2K

CLK

R610330

R868

6.8K

R869

6.8K

Q605 KTC3199GR

R611

6.8K Q603

KTC3199GR

C615

C606

2

CE

VDD 23

+B

C635

100/16

–

C

0.001

0.001

VSS

CCB

+

VREF

22

2

3

+

CNS901

KTC3199 GR

Q863

C636

0.001

R612

C616

–

6.8K

INTERFACE

KTC3199 GR

C609

LOUT

ROUT 21

Q862

R879

KTC3199GR

0.001

4

C607

C610

L CH

22K

Q604

0.22

+ –

+ –

R622

R616

0.22

5

20

0.22

1

Q606

R614

2.2K

R605

LBASS

2.2K

RBASS

KTC3199 GR

560

SYSTEM

3.9K

6

+ –

+ –

19

A_GND

MUTE

2

R878

C611

C619

LTRE

RTRE

C

R_CH

22K

0.0015

1/50

7

LIN

RIN 18

1

3

C621

4

LVL-CTRL

10/50

8

LSEL0

RSEL0 17

C623

+ –

+ –

C624

+B(16V)

C617 2.2/50

L4

R4

B

5

R619

22K

1/50

9

AUX

16

1/50

C625

P24 2 - G

GND(RECT)

22/50

L3

R3

6

C618

R620

22K

1/50

10

DECK

15

CNP901

C627

L2

R2

C628

7

TO

1/50

11

TUNER

14

1/50

M_+13V

+B

R617

C629

POWER PWB

8

L1

R1

4.7K

1/50

–15V

12

CD

13

9

–B

C642

C630

R624

10

M_GND(MTR)

47P

4.7K

1/50

11

SP_RLY

12

SP_DET

13

SW+5V

IC851

–20dBAT

+B

S_MUTE

KAI7812AP

VOLTAGE

C

REGULATOR

–B

IC8

R866

KIA4

OPE

IC851

LD +7V

330

VOLTAGE

+B

7812AP

REGULATOR

Q866

LVL-CTRL

18V

1

3

+B

KTC2026

0.047 R854 22K

+B

10/50 R870

2

D858 1SS133 C851

C852 22/50

R860

1K

R871

10K

Q864

IC860 KIA4558P

220

R880

C843

D859 1SS133

R859

KRC102 M

ZD852 DZ8.2BSB

C847 22/50

22K

C899

10K

7

2

0.1

3

C849

10/50

D861

4

C856

C867

1

1SS133

3300/35

D852

Q865

1/50

1

KIA7810AP VOLTAGE REGULATOR

IC852

1SS133

D857

LD+7V

+B

KTC3199 GR

R873

KIA7810AP

3

A_+10V

+B

1SS133

A_+10V

+B

1K

IC852

1

D851 1SS133

IC854

D

2

C853

47/25

D862

C855 0.1

C854

0.1

22K

AN78L05

+BPROTECT

+B

1SS133

R881

4.7K

IC853

VOLTAGE

D_+5V

+B

1

KIA7805AP

+B

REGULATOR

A_+5V

+B

R867

5V

100K

GND(RECT)

GND(REG)

A GND(MUTE)

A GND(A PRO)

CD D GND M GND

1

3

R853 R852 10K

18V 1

3

SW_5.6V

C864 22/50

R874

100K

C863 22/50

R875

100K

2

C857 47/25

C858 0.022

C845

0.047

C859

C869 10/50

2

C860

47/25

0.1

D863

+B

CD_GND

+B

1SS133

A_GND

D_GND

LG1

IC853

Q110

R155

R156

220K

REC_R

R113

R114

KRC104 M

150

A_+10V

+B

E

KIA7805AP

10K

10K

0V

2

3

3.4V

R

BASE

VOLTAGE

C153

MUTING

CHASSIS

REGULATOR

9.3V

R115

1

0V

100/16

0V

MUTING

R154

R153

0V

8.6V

4.7K

1

SWITCHING

0V

2

3

Q110,Q111:

0.7V

10K

10K

0.7V

M GND

(TAPE)

Q109

3.4V

SWITCHING

9.3V

KTA1266 GR

Q122

0V

Q121

0

R112

Q111

KTC3199 GR

R-CH

KTC3199 GR

C102

15K

KRC104 M

0.0022

L

R120

C120

C124

R132

5.6K 12K

R134

R142

C136 100

R146

10K

T1_R

560P

C118

68K

1

T1_R

560P

1

A_GND

R102

56

0.033

C140

0.0033

L-CH

2

A_GND

2

1K

C116

R126

R136

4.7K

R122

3

T1_L

3

T1_L

R101

100/25

0.022

C145

22/50

C146

220/10

C101

1K

R

R174

1K

100K

R124

3.9K

C122

R140

1.5K

CNP101

Q104

R118

TAPE 1

560P

1/50

0V

2SC1845F

1KC112

C114

R138

6.8K

C132

270P

R158

PLAYBACK HEAD

Q104,Q106:

R108

330P

330P

0.7V

47/25

220

SWITCHING

C106

47K

C134

F

R104

R170

CNS102

180P

0V

1K

22/25

0V

2.2K

1K

24

23

21

20

19

17

16

14

13

ERASE HEAD

1

1

1

ERASE

0.7V

22

18

15

M_GND

–

–

Vcc

112K

56K

2

2

2

R106

0V

+

IC101

+

T2_R2

0V

Hich=T1

Hich=CHROME

3.3K

AN7345K

R-CH

3

3

3

A_GND

Q106

R110

SWITCHING

0V

KTC3199GR

560P

R172

+

112K

+

56K

C142

ALC

Nor/CrO2

ALC RIPPLE

GND

4

4

4

2SC1845F

–

–

T2_R1

4.7K

Q108

C108

1

2

3

4

5

6

7

8

9

10

11

12

5

5

5

L-CH

R169

R171

1K

6

6

6

T2_L1

1K

C133

C111

22/25

T2_L2

R109

4.7K

7

Q105

C107

560P

330P

C113

0V

2SC1845F

0V

R117

330P

C127 0.022

R135 R137

6.8K

R141

R123

3.9K

100

C141

TAPE 2

C105

0.7V

1K

R173

BI102

C131 270P

47/25

RECORD/

Q103,Q105:

180P

R105

0V

1K

R121

R125

5.6K

PLAYBACK HEAD

0V

3.3K

100K

SWITCHING

0V

C115

0.7V

R107

47K

Q107 KTC3199GR

SWITCHING

100/25

C123

0.0022

C128 3.3/50

C135

0.022

R145

G

R103

R119

C117

C119 C121

C139

0.0033

10K

0.033

560P 1/50

R131

12K

4.7K

R139

1.5K

0V

2.2K

56

Q103

2SC1845F

L

IC101

R111

15K

AN7345K

PLAYBACK AND RECORD/PLAYBACK AMP.

H

• NOTES ON SCHEMATIC DIAGRAM can be found on page 14.

1

2

3

4

5

6

Figure 20 SCHEMATIC DIAGRAM (3/10)

– 20 –