Sharp XLHP700 Service Manual

XL-HP700

SERVICE MANUAL

No. S1304XLHP700/

MICRO COMPONENT SYSTEM

MODEL XL-HP700

XL-HP700 Micro Component System consisting of XL-HP700 (main unit) and CP-HP700 (speaker system).

• 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

IMPORTANT SERVICE NOTES (FOR U.S.A. ONLY)....................................................................................................... 2

SPECIFICATIONS ............................................................................................................................................................. 2

NAMES OF PARTS ........................................................................................................................................................... 3

DISASSEMBLY.................................................................................................................................................................. 5

REMOVING AND REINSTALLING THE MAIN PARTS..................................................................................................... 7

ADJUSTMENT ................................................................................................................................................................... 9

NOTES ON SCHEMATIC DIAGRAM .............................................................................................................................. 12

TYPES OF TRANSISTOR AND LED............................................................................................................................... 12

BLOCK DIAGRAM ........................................................................................................................................................... 13

SCHEMATIC DIAGRAM / WIRING SIDE OF P.W.BOARD............................................................................................. 16

VOLTAGE ........................................................................................................................................................................ 33

WAVEFORMS OF CD CIRCUIT...................................................................................................................................... 34

TROUBLESHOOTING ..................................................................................................................................................... 35

FUNCTION TABLE OF IC................................................................................................................................................ 39

FL DISPLAY..................................................................................................................................................................... 46

REPLACEMENT PARTS LIST/EXPLODED VIEW PACKING OF THE SET (FOR U.S.A. ONLY)

SHARP CORPORATION

This document has been published to be used for after sales service only. The contents are subject to change without notice.

XL-HP700

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

IMPORTANT SERVICE NOTES (FOR U.S.A. ONLY)

BEFORE RETURNING THE AUDIO PRODUCT

(Fire & Shock Hazard) Before returning the audio product to the user, perform the following safety checks.

1. Inspect all lead dress to make certain that leads are not pinched or that hardware is not lodged between the chassis and other metal parts in the audio product.

2. Inspect all protective devices such as insulating materials, cabinet, terminal board, adjustment and compartment covers or shields, mechanical insulators etc.

3. To be sure that no shock hazard exists, check for leakage current in the following manner.

* Plug the AC line cord directly into a 120 volt AC outlet. * Using two clip leads, connect a 1.5k ohm, 10 watt resistor paralleled

by a 0.15µF capacitor in series with all exposed metal cabinet parts and a known earth ground, such as conduit or electrical ground connected to earth ground.

* Use a VTVM or VOM with 1000 ohm per volt, or higher, sensitivity

to measure the AC voltage drop across the resistor (See diagram).

* Connect the resistor connection to all exposed metal parts having

a return path to the chassis (antenna, metal cabinet, screw heads, knobs and control shafts, escutcheon, etc.) and measure the AC voltage drop across the resistor.

VTVM

AC SCALE

1.5k ohms 10W

0.15 µ F

TO EXPOSED METAL PARTS

All check must be repeated with the AC line cord plug connection reversed. Any reading of 0.3 volt RMS (this corresponds to 0.2 milliamp. AC.) or more is excessive and indicates a potential shock hazard which must be corrected before returning the audio product to the owner.

TEST PROBE

CONNECT TO KNOWN EARTH GROUND

SPECIFICATIONS

■ General

Power source AC 120 V, 60 Hz Power

consumption Dimensions Width: 8-1/8" (205 mm)

Weight 16.8 lbs. (7.6 kg)

■ Amplifier

Output power 100 watts minimum RMS per channel into 6

Output terminals Speakers: 6 ohms

Input terminals Video/Auxiliary (audio signal): 500 mV/47 k

■ CD player

Type 3-disc multi-play compact disc changer

Signal readout Non-contact, 3-beam semiconductor laser

D/A converter 1-bit D/A converter Frequency

response Dynamic range 90 dB (1 kHz)

176 W

Height: 10-1/4" (260 mm) Depth: 14-7/16" (366 mm)

ohms from 60 Hz to 20 kHz, 10% total harmonic distortion

Headphones: 16 - 50 ohms (recommended: 32 ohms)

Subwoofer pre-out (audio signal): 200 mV/ 10 k ohms at 70 Hz

ohms

player

pickup

20 - 20,000 Hz

■ Tuner

Frequency range FM: 87.5 - 108 MHz

AM: 530 - 1,720 kHz

■ Cassette deck

Frequency response

Signal/noise ratio 50 dB (recording/playback) Wow and flutter 0.3 % (WRMS)

50 - 14,000 Hz (normal tape)

■ Speaker

Type 2-way type speaker system 2" (5 cm) Tweeter

5-7/8" (15 cm) Woofer

Maximum input power

Rated input power 100 W Impedance 6 ohms Dimensions Width: 7-1/16" (180 mm)

Weight 7.9 lbs. (3.6 kg)/each

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

200 W

Height: 10-1/4" (260 mm) Depth: 11-1/4" (285 mm)

– 2 –

XL-HP700

NAMES OF PARTS

■ Front panel

1.Disc Trays

1

9

2

10

3 4

5

11

6 7

12

13

14

15 17 18 19

8

16

20 21

22

2.Power On/Stand-by Button

3.Timer/Sleep Button

4.Clock Button

5.Tuning and Time Down Button

6.Tuning and Time Up Button

7.Timer Set Indicator

8.Headphone Jack

9.CD Eject Buttons

10.CD Direct Play Buttons

11.Equalizer Mode Select Button

12.Extra Bass/Demo Mode Button

13.Volume Control

14.Cassette Compartment

15.Tape Reverse Play Button

16.CD or Tape Stop Button

17.CD Play or Repeat, Tape Forward Play Button

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

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

20.CD Button

21.Tape Record Pause Button

22.Video/Auxiliary Button

23.Tape Reverse Mode Se le c t Button

24.Memory/Set Button

25.Tuner (Band) Button

26.Tape Button

23 24 2625

21345 6789

10 11

151412 13

4 5

1

2

6

■ Display

1.Disc Number Indicators

2.CD Play Indicator

3.Tape Reverse Mode Indicator

4.Tape Reverse Play Indicator

5.Tape Forward Play Indicator

6.FM Stereo Mode Indicator

7.FM Stereo Receiving Indicator

8.Memory Indicator

9.Extra Bass Indicator

10.Timer Recording Indicator

11.Timer Play Indicator

12.CD Pause Indicator

13.CD Repeat Play Indicator

14.Tape Record Indicator

15.Sleep Indicator

■ Rear panel

1.Cooling Fan

2.Subwoofer Pre-output Jack

3.AC Power Cord

4.FM/AM Loop Antenna Jack

5.Video/Auxiliary (Audio Signal) Input Jacks

6.Speaker Terminals

3

1

2

3

4

Note:

This product is equipped with a cooling fan inside, which begins to run at a specified volume level for better heat radiation.

■ Speaker system

1.Tweeter

2.Woofer

3.Bass Reflex Duct

4.Speaker Terminals

– 3 –

XL-HP700

17 18

19 20 21

22 23

24 25

■ Remote control

1.Remote Control Transmitter

2.CD Direct Play Buttons

3.CD Track Down or Fast Reverse, Tape Fast Wind,

1

7

2

8

9

10 11

12

3

13 14

4 5

15 16

6

Tuner Preset Down Button

4.Clock Button

5.Equalizer Mode Select Button

6.Extra Bass Button

7.Power On/Stand-by Button

8.CD Button

9.Tuner (Band) Button

10.Tape Button

11.Video/Auxiliary But to n

12.CD Track Up or Fast Forward, Tape Fast Wind,

Tuner Preset Up Button

13.Volume Up and Down Buttons

14.Direct Search Buttons

15.Program Clear Button

16.CD Memory Button

17.CD Stop Button

18.CD Pause Button

19.Tape Reverse Mode Select Button

20.Tape Reverse Play Button

21.Tape Stop Button

22.CD Play or Repeat Button

23.Tape Record Pause Button

24.CD Random Button

25.Tape Forward Play Button

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

– 4 –

DISASSEMBLY

(A1) x2 ø3x12mm

(A1) x1 ø3x10mm

(B1) x3 ø3x10mm

(B1) x2 ø3x10mm

(B1) x1 ø3x10mm

Side Panel (Left)

Front Panel

Top Cabinet

Side Panel (Right)

Rear Panel

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.

XL-HP700

STEP

REMOVAL PROCEDURE FIGURE

1 Top Cabinet 1. Screw ...................... (A1) x5 5-1

2 Side Panel 1. Screw .................... (B1) x10 5-1

(Left/Right)

3 Rear Panel 1. Screw ...................... (C1) x7 5-2

2. Screw ...................... (C2) x2

3. Flat Cable ............... (C3) x1

4 CD Changer 1. Hook........................ (D1) x2 5-2

Mechanism Unit 2. Socket ..................... (D2) x1

3. Flat Cable ............... (D3) x2

5 Front Panel 1. Screw ...................... (E1) x3 5-2,5-3

2. Hook........................ (E2) x2 5-3

3. Socket ..................... (E3) x2

4. Flat Cable ............... (E4) x2

6 Cover, Heat Sink 1. Screw .......................(F1) x4 5-2,6-1

7 Main PWB 1. Screw ...................... (G1) x2 5-2,6-1

2. Socket .....................(G2) x2 6-1

8 Power PWB 1. Screw ...................... (H1) x4 6-1

9

Display PWB

1. Knob......................... (J1) x1 6-2

2. Screw .......................(J2) x9

3. Flat Cable ................ (J3) x1

10 Tape Mechanism 1. Screw ...................... (K1) x4 6-2

11

Headphones PWB

1. Screw .......................(L1) x1 6-2

12 CD Servo PWB 1. Screw ......................(M1) x3 6-3

(Note 1) 2. Socket .....................(M2) x6

13 CD Changer 1. Screw ...................... (N1) x4 6-3

Mechanism Unit 2. Screw ...................... (N2) x2 6-4

3. Top Board ............... (N3) x1

4. Stabilizer Holder ..... (N4) x1

5. Disk Tray................. (N5) x3

6. Screw ...................... (N6) x3

7.

Guide,Mecha Holder ..

(N7) x1

8. Screw ...................... (N8) x1

9. Stopper ................... (N9) x1

10. Holder,Mecha ..... (N10) x1

11. Screw .................. (N11) x4

Note 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.

CD Servo PWB

(C3) x1

Jack PWB

Display PWB

Rear Panel

(C1) x7 ø3x10mm

Tape Mechanism

Front Panel

(E3) x1

Figure 5-1

Hook (D1)x1

(D2) x1

Figure 5-2

(E3) x1

Hook (E2)x1

CD Changer Mechanism Unit

Pull

(G1) x1 ø3x10mm

(C2) x2 ø3x10mm

Pull

(D3) x2

(E4) x2

Front Panel

Display PWB

Pull

(E1) x1 ø3x10mm

Main PWB

Hook (D1)x1

(F1) x2 ø3x6mm

– 5 –

Hook (E2)x1

Pull

(E1) x2 ø3x10mm

Power PWB

Figure 5-3

XL-HP700

Net Frame (A1) x1

(A2) x2

(A3) x2 ø3x12mm

(A4) x4 ø4x12mm

Woofer

Tweeter

(B1) x2 ø3x10mm

(A2) x2

(G2) x1

(H1) x4 ø4x8mm

Power PWB

(J1) x1

Display PWB

Cover,Heat Sink

Main PWB

(G1) x1 ø3x6mm

Figure 6-1

(J3) x1

Front Panel

(F1) x2 ø3x6mm

(G2) x1

(J2) x9 ø2.6x10mm

Tape Mechanism

(N2) x2 ø2 x7mm

(N6) x2 ø2 x6mm

Disc Tray 1

(N5) x3

Spring

Top Board (N3) x1

(N6) x1 ø2.6 x12mm

Disc Tray 2

Disc Tray 3

Stabilizer Holder

(N4) x1

(N7) x1

Figure 6-4

(N10) x1

CD Mechanism

(N11) x4 ø2.6 x10mm

Press in turns the arrow

1

parts, starting with the

2

uppermost one, to

3

withdraw the disc trays.

Push

Pawl

(N9) x1

(N8) x1 ø3 x3mm

Turn clockwise the main cam to raise the CD mechanism up to the uppermost position.

Open

Cassette Holder

CD Changer Mechanism Unit

Figure 6-2

(N1) x2 ø3x10mm

(K1) x4 ø3x10mm

Headphones PWB

(N1) x2 ø3x10mm

(M2) x6

(L1) x1 ø3x10mm

STEP

REMOVAL

PROCEDURE

1 Woofer 1. Net Frame ............... (A1) x1 6-5

2. Catching Holder ...... (A2) x4

3. Screw ...................... (A3) x4

4. Screw ...................... (A4) x4

2 Tweeter 1. Screw ...................... (B1) x2 6-5

FIGURE

(M1) x3 ø3x10mm

Figure 6-3

CD Servo PWB

Figure 6-5

– 6 –

REMOVING AND REINSTALLING THE MAIN PARTS

TAPE MECHANISM SECTION

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

How to remove the Record/Playback Head (See Fig. 7-1)

1. When you remove the screws (A1) x 2 pcs and (A2) x 1 pc., the record/playback head can be removed.

Erase Head

Clutch Ass'y

Record/Playback Head

XL-HP700

How to remove the Pinch Roller (See Fig. 7-2)

1. Carefully bend the pinch roller pawl in the direction of the arrow <A>, and remove the pinch roller (B1) 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 (See Fig. 7-3)

1. Remove the main belt (C1) x 1 pc., from the motor side.

2. Remove the FF/REW belt (C2) x 1 pc.

How to remove the Motor (See Fig. 7-4)

1. Remove the screws (D1) x 2 pcs., to remove the motor.

(A1)x2 Ø2x6mm

Pinch Roller (B1)x1

(A2)x1 Ø2x9mm

Figure 7-1

Pull

<B>

Figure 7-2

FF/REW Belt (C2)x1

FF/REW Clutch

<A>

Pinch Roller Pawl

Motor

– 7 –

(D1)x2 Ø2.6x5mm

Main Belt (C1)x1

Flywheel

Figure 7-3

Motor

Clutch Ass'y

Figure 7-4

XL-HP700 CD MECHANISM SECTION

Perform steps 1 to 4 and 12 to 13 of the disassembly method to remove the CD mechanism.

How to remove the Optical Pickup (See Fig. 8-1)

1. Remove the screws (A1) x 2 pcs and shaft (A2) x 1 pc.

2. Remove the stop washer (A3) x 1 pc and gear (A4) x 1 pc.

3. Remove the optical pickup.

Note:

After pulling out the optical pickup connector, wrap the tip of it with conductive aluminium foil or the like to protect the optical pickup from the static electricity.

How to remove the Tray Motor and the Main Cam Motor (See Fig. 8-2)

1. Remove the CD changer mechanism unit by the method described in page 7, and disassemble as shown in the figure.

2. Remove the belt (B1) x 2 pcs from the motor side.

3. Remove the screws (B2) x 4 pcs.

4. Remove the tray motor and the main cam motor.

Stop Washer (A3) x1

Optical Pickup

CD Mechanism

(B2) x2 ø2.6 x4mm

Belt (B1) x1

(A1) x2 ø2.6 x5mm

Figure 8-1

Tray Motor

Figure 8-2

Gear (A4) x1

(B2) x2 ø2.6 x4mm

Belt (B1) x1

Main Cam Motor

Shaft (A2) x1

How to remove the CD Disc (When CD is in the playback state) (See Fig. 8-3

1. Remove the cabinet and front panel.

2. Disassemble as shown in the figure so that the CD disc of CD changer becomes visible.

3. Remove the CD disc as shown in the figure.

)

How to remove the CD Disc (When CD exists in the tray) (See Fig. 8-4)

1. Remove the cabinet and front panel.

2. Disassemble as shown in the figure so that the CD disc of CD changer can be taken out.

3. Remove the CD disc from the tray as shown in the figure.

Disk Holder

CD Disk

Disc Holder

CD Mechanism

CD Disk

Turn the main cam clockwise and raise the CD mechanism and disk holder up to the uppermost position.

(When CD is in playback state)

Figure 8-3

Turn the main cam clockwise and raise the CD mechanism and disk holder up to the uppermost position.

CD Changer Mechanism Unit

CD Changer Mechanism unit

– 8 –

Disk Tray 1

Disk Tray 2

Disk Tray 3

(When CD exists in the tray)

Figure 8-4

Press in turns the arrow

1

parts, starting with the

2

uppermost one, to

3

withdraw the disc trays

MECHANISM SECTION

••

• Driving Force Check

••

Torque Meter Specified Value

Play: TW-2111 Over 80 g

• Torque Check

Torque Meter

Play: TW-2111 30 to 80 g.cm Fast forward: TW-2231 70 to 180 g.cm Rewind: TW-2231 70 to 180 g.cm

Specified Value

ADJUSTMENT

••

• Tape Speed

••

Normal MTT-111 Variable 3,000 ± 30 Hz Speaker speed Resistor in Terminal

Test Tape

XL-HP700

Adjusting

Point

motor. (Load

TAPE MECHANISM

Specified

Value

Instrument

Connection

resistance: 6 ohms)

TUNER SECTION

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

••

•

AM IF/RF

••

Signal generator: 400 Hz, 30%, AM modulated

IC303

R357

Frequency

Display

IC302

T351

T301

AM IF

FM OSC

FM IF

AM BAND COVERAGE fL

(Turn the core of transformer T302 fully counterclock wise)

MAIN PWB-A1

T302

L312

FM RF

TP301

AM TRACKING fL

T306

Setting/

Adjusting

Parts

Setting/

Adjusting

Point

Setting/

Adjusting

Point

IC301

T303

Instrument

Connection

Instrument

Connection

Instrument

Connection

FM/AM

LOOP

ANTENNA

CNP302

Test Stage

Frequency

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

••

• FM RF

••

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

Test Stage

FM Band — 87.50 MHz T301 (fL): *1 Coverage 1.3 V ± 0.1 V

FM RF 98.00 MHz 98.00 MHz L312 *2

Frequency Frequency

(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

IF 10.7 MHz 98 MHz T302 *1

Frequency Frequency

*1. Input: Antenna Output: TP301

TP302

Figure 9-2 ADJUSTMENT POINTS

Tape Motor

Variable Resistor in motor

Figure 9-1

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

(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

10*

11*

20*

21*

22*

23*

31

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

– 9 –

When Pickup set inner position, inner switch cannot detect 'ON' level for 10 secs.

CAM error. Can't detect CAM switch when CAM is moving.

When it detect CAM operation error during initialize process.

TRAY error. Can't detect TRAY switch when TRAY is moving.

When it detect TRAY operation error during initialize process.

When it detect invalid TRAY switch during normal operation.

When it detect invalid TRAY switch during initialize procecss.

When it change to CD function, DSP cannot read initial data.

XL-HP700 TEST MODE

• Setting the test mode

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

Function: -CD test mode.

-Enter test 4 mode.

C D T E S T

OPEN/CLOSE operation is using manual.

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

IL isn't done

<<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"

explanation: a) Focus off set = "FOFF_XX" b) Tracking off set = "TOFF_XX" c) Tracking balance = "TBAL_XX" d) Tracking Gain = "TGAN_XX" f) Focus Gain = "FGAN_XX" g) RF level shift = "RFLS_XX"

<<PLAY>> key input.

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

<< 1>> key: Track 4 <<

2>> key: Track 9 3>> key: Track 15

<<

<<STOP>> key input.

STOP

<<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.

VOL — Last memory BAL — CENTER P.GEQ — FLAT X-BASS — OFF

To cancel : Power OFF

– 10 –

STOP

Sliding the PICKUP with

>>, << >> button

<< must only be in STOP mode.

XL-HP700

Standard Specification of Stereo System Error Message Display Contents

Error Contents DISPLAY Notes CD Pickup Mechanism Error. 'ER-CD01' PU-IN SW Detection NG.

CD Changer Mechanism Error. 'ER-CD**' 10: CAM SW Detection NG during normal operation.

(*) 11: CAM SW Detection NG during initialize process.

20: TRAY SW Detection NG during normal operation. 21: TRAY SW Detection NG during initialize process. 22: Invalid TRAY SW value during normal operation.

23: Invalid TRAY SW value during initialize process. CD DSP Communication Error 'ER-CD31' DSP COMMUNICATION ERROR Focus Not Match/ 'NO DISC' IL Time Over.

TUNER PLL Unlock. FM 87.50 MHz PLL Unlock.

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

Speaker abnormal detection and +B PROTECTION display

In case speaker abnormal detection or +B PROTECTION had occurred, it can be check by pressing 'POWER', 'VIDEO' and 'XBASS' 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.

– 11 –

XL-HP700

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.

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

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

• Parts marked with “ 1 ” ( ) 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

SW4 PICKUP IN ON—OFF SW701 POWER ON/STAND-BY ON—OFF SW702 CLOCK ON—OFF SW703 TIMER/SLEEP ON—OFF SW704 TUNING/TIME UP ON—OFF SW705 TUNING/TIME DOWN ON—OFF SW706 REC/PAUSE ON—OFF SW707 REVERSE MODE ON—OFF SW708 MEMORY/SET ON—OFF SW712 PRESET UP ON—OFF SW713 PRESET DOWN ON—OFF SW714 PLAY ON—OFF SW715 STOP ON—OFF SW716 REVERSE PLAY ON—OFF SW717 CD ON—OFF SW718 TUNER (BAND) ON—OFF SW719 TAPE ON—OFF

DESCRIPTION

POSITION

TYPES OF TRANSISTOR AND LED

REF. NO DESCRIPTION POSITION

SW720 VIDEO/AUX ON—OFF SW721 DISC 3 EJECT ON—OFF SW722 DISC 2 EJECT ON—OFF SW723 DISC 1 EJECT ON—OFF SW724 DISC 1 ON—OFF SW725 DISC 2 ON—OFF SW726 DISC 3 ON—OFF SW727 EQUALIZER ON—OFF SW728 X-BASS/DEMO ON—OFF SWB101 CAM 1 ON—OFF SWB102 CAM 2 ON—OFF SWB103 CAM 3 ON—OFF SWB104 CAM 4 ON—OFF SWB105 CD EJECT ON—OFF SWB106 CD TRAY CLOSE ON—OFF SWB107 CD IN ON—OFF SWB108 CD SET ON—OFF

FRONT

VIEW

E C B

(S) (G) (D) (1) (2) (3)

KRC102 M KRC104 M KTA1266 GR KTA1271 Y KTA1273 Y

KTA1274 Y KTC3199 GR KTC3194 Y KTC3203 Y 2SC1845 F

FRONT

VIEW

B C E

– 12 –

FRONT VIEW

SLR342VCKTC2026

XL-HP700

+3.3V

CNP9

XL1

16.9344 MHz

Q2

CONSTANT

VOLTAGE

R-CH

87

+3.3V

AGND

61

CE

62

CLK

63

DI

64

DO

65

WRQ

66

RES

67

DRF

XOUT

48

XIN

49

TO MAIN SECTION

DGND (DRIVER)

+5V (+B7)

DGND

+5V (+B8)

L-CH

312

645

45 68

42

LCHO

RCHO

VDD

XVDD

RFVDD

5

18

ADAVDD

38

47

VVDD

77

+8V (+B4)

VDD5

WRQ

IC1

LC78646E

CD SERVO

RVDD

41

ZD1

3.3V

LVDD

46

FIN1

FIN2

TO DISPLAY SECTION TO DISPLAY SECTION

T_MOT_H/L

CAM_M–

CAM_M+

TRAY_M–

DRF

32716

TIN2

TIN1

79

987

10

54

LDS

CNP5

CONT5

SLDO SPDO

FDO TDO

LDD

80

CD RES

CL

DI

DO

CE

TRAY_M+

1113 810 9 674523112

CD EJECT

SWB105

75 69 57 56 55 51 50 44 43 40 37 28 19

6

26 23 22 21 20

+5V

12

40

VCC4

28

VCC3

FOCUS/TRACKING/

18

VCC1 VCC2

24

42 39383736

17 25

M63001FP

SPIN/SLED

TRAY 3

TRAY 2

TRAY 1

CD TRAY CLOSE

CD SET

CD IN

SWB108

SWB107

SWB106

23

22

41

IC2

TRAY 4

DRIVER

Q1

LASER

DRIVER

4765

+3.3V

15

CAM1

SWB101

16

CAM2

SWB102

26 27

CAM3

SWB103

CAM4

CNP6

CAM4

SWB104

MOB1

MAIN CAM MOTOR

–

M

+

–

M

+

MOB2

TRAY MOTOR

35

~~

29

21

14

8

+5V (+B7)

PICKUP UNIT

FOCUS COIL

TRACKING COIL

Figure 13 BLOCK DIAGRAM (1/3)

– 13 –

M1

SPINDLE

MOTOR

M2

SLED

MOTOR

M

+

–

+

SW4

PICKUP IN

XL-HP700

C

FM/AM LOOP

ANTENNA

CNP302

1 2

3

CNP9

FROM CD SECTION

B.P.F BF301

FM RF

IC301

TA7358AP

FM FRONT END

1

+B6

BI901

8 7 6

5

FM OSC

AM BAND

COVERAGE

384

L312 T301

AM

TRACKING

T303 T306

6 9

7

IC302

LC72131

PLL(TUNER)

FM+B

SWITCHING

FM IF

CF302T302

OSC

BUFF

Q302

VT

20 22 11

+B5

FM

Q360

VIDEO/AUX

TUNER

IC303

LA1832S

FM IF DET.

FM MPX./AM IF

+B6

450 kHz

T351

CF352

AM IF

21

AM MIX

21

7

AM OSC IN

AM OSC OUT

X352

4.5 MHZ

OSC

7

JK690

L

AUX

R

TAPE

STEREO

AM RF IN

1615

MO/ST

FM/AM

9

10

L

9

16

R

L

10 15

R

L

11 14

AUDIO PROCESSOR

R

L

12

CD

13

R

7

+B6

10.7 MHz

CF351

98517

4

VCC

GND

AM IF

FM/AM

OUT

18

CLK

DO

DI

CE

6

5413

17

21

23

IC601

LC75341

818 17

3

+B6

162324

FM

MPXIN

+B5

DET

+B5

CE

CLK

ZD351

456 kHz

VCO

FM/AM

12

DI

5.1V

X351

13

L

MO/ST

R

20

Q361

1 2

24

21

4

14 15

R L

–20dB ATT

+B5

Q601 Q602

Q603 Q604

SYSTEM

MUTE

L-CH R-CH

ERASE

HEAD

REC./P.B.

HEAD

REC.

P.B.

AC BIAS

SWITCHING Q101~ Q104

Q105 Q106

Q111 L103

BIAS OSC

L

2

23

R

6 L REC R REC

+B5

Q112

T1/T2 REC

9

16 11

12

NOR/

15

HIGH

SWITCHING

POP REDUCE

SWITCHING

P.B

L

4

PB

21

R

H/N

RECRL

7

18

IC101 AN7345K PLAYBACK AND RECORD

+B5

13

T1/T2

Q114

Q113

Q109

SWITCHING

Figure 14 BLOCK DIAGRAM (2/3)

/PLAYBACK AMP.

+B5

Q110

BIAS

– 14 –

+B3

Q107 Q108

MUTING

MOTOR DRIVER

Q500

Q501

SOLENOID

DRIVER

REC/PLAY

TAPE

MECHANISM

ASS'Y

BIAS

VF1

–VF

XL-HP700

Q603 Q604

SYSTEM

MUTE

/PLAY

BIAS

FL701

FL DISPLAY

51

13

12

~

Q701

+B9

15

~

72

~

78 79

VLOAD

80

~

85 86

~

90 92

93

-

100

12456 7

+B10

SP DET.

19

VDD

IC901

STK402-120

POWER AMP.

1

L

15

R

13

8

M_+12.6V

+B3

LD+8V

+B4

A_10V

+B5

UNSW_5.6V

VF2

VF1

–VF

+B10

D_5V

+B7

A_5V

+B8

SW_5V

+B9

IC853, IC854

CONSTANT VOLTAGE REGULATOR

AC_RLY

7

10

9

-B2

+B2

VOLTAGE

REGULATOR

IC854

AN78L05

Q841

RELAY

DRIVER

L-OUT R-OUT

IC855

4514

~

34

29

~

38 91 4042

41

35

~

68 56

IC701

IX0578AW

SYSTEM

MICROCOMPUTER

RESET

8

1112 1 0 16 1 7 20 21222324

9

+B10

XL700

4.19403 MHz

Q702

+B10

RESET

Q901~ Q904

IC851

KIA7812AP

CONSTANT

VOLTAGE

REGULATOR

IC851

IC852

IC853

KIA7805AP

REGULATOR

D855

SP RELAY

ON-OFF

D802

IC852

KIA7810AP

CONSTANT

VOLTAGE

VDD

+B10

46

–

25 13

AVDD

CLK

CEDIDO

Q905

5A 125V

F801

5A 125V

D803, D804

Q801

D842~ D845

30

39

+B10

34 33

~

31

37 15 41

FAN MOTOR

DRIVER

RL914

F802

F803

2A 125V

F804

2A 125V

VOLTAGE

REGULATOR

TO CD

SECTION

CNP6

TAPE

MECHANISM

ASS'Y

RX701

REMOTE

1

SENSOR

3

KEY

SW701-SW708 SW712-SW728

TO CD SECTION

CNP5

Q906

+B3

HEADPHONES

MAIN POWER

TRANSFORMER

2

+B10

+B7

M971(212-3)

M

FAN

MOTOR

SO901 SPEAKER TERMINAL

JK951

JK953 SUB WOOFER

PT801

T.F.

PT841

SUB POWER

TRANSFORMER

F805

5A 125V

RL841

AC POWER

SUPPLY CORD

AC 120 V, 60 Hz

Figure 15 BLOCK DIAGRAM (3/3)

– 15 –

XL-HP700

A

B

C

C907 470P

R903

C903

0.001 R901

1K

56K

C901

0.22/50

R911

R909

IC901

STK402-120

POWER AMP.

L-CH

+

CH1

–

R925

22K

C913

100/63

R921

1K

100

L

R907

56K

560

C905

3P

C909

22/16

CH1

0.22

(3W)

R917

0.22

C932

R913

0.1

(3W)

C911

0.022(ML) R915

1.5K KTC3199 GR

FAN MOTOR 5V

OUT

R923

1.5K

Q901

R919

0.22

(100 WATTS/CH)

+VCC

8 7 6 5 4 3 2 1

(3W)

+B

C915

D905

DS1SS133

10/63

(2CH)

OUT

CH2

–VCC

9

0.22

(3W)

R918

0.22

(3W)

R920

–B

R914

C916

10/63

(3W)

0.1

C912

0.022(ML)

R916

1.5K

56K

R902

C902

0.22/50

+B +B

C914

R924

100/63

1.5K

R922

R

D906

DS1SS133

Q902

C904

0.001

R-CH

+

CH2

–

100

C910

KTC3199 GR

C908 470P

560

R912

R908

22/16

D907

DS1SS133

151413121110

R910

56K

C906

Q904

KTC3199 GR

1K

3P

FM SIGNAL

1K

R904

Q903

KTC3199 GR

R935

56K

R936

56K

C925

56K

47/50

R937

L

R

L

C926

0.22 (ML)

R

C928

0.22 (ML)

R940R956 R957

10 10 10

(1/2W)(1/2W) (1/2W)

R941

10

(1/2W)

C927

0.22 (ML)

C929

0.22 (ML)

+B

D

P18 2 - C

E

F

P18 2 - E, P19 9,10 - H

G

H

L-CH

1

A_GND

2

R-CH

3

TO MAIN PWB(2/3)

SP_RLY

4

SP_DET

5

M_+12.6V

6

LD_+8V

7

A_+10V

8

+B_PROTECT

9

D_+5V

10

A_+5V

11

SW_+5V

TO MAIN PWB(2/3)

12

CD_GND

13

UNSW5.6V

14

CD_D_GND

15

CD_A_GND

16

M GND

17

APRO_GND

18

D_GND

19

TAPE_A_GND

20

LUG902(229)

1 2 3 4 5 6 7

+B

8

SUB_B

LUG903(229)

CHASSIS

GND

CHASSIS

GND

CNS801

1 2 3 4 5 6 7

+B

R926

22K

R927

–B

IC855

R859

22K

KTC2026

C863

22/50

D857

DS1SS133

C861

0.047

ZD852

DZ9.1BSB

DS1SS133

AN78L05

+B

+B +B

+B

220

R860

C865

10/50

D852

D851

DS1SS133

D853

DS1SS133

IC854

3 1

2

C860

D856

47/25

DS1SS133

R856

R852

1

C851

10K

(1/2W)

0.047

22K

R854

22K

R853

D860

GD1N4004

C857

47/25

+B

C862

10/50

+B

22K

IC851

KIA7812AP

12.6V

3 1

2

D858

DS1SS133

C852

22/50

D859

DS1SS133

IC852

KIA7810AP

3 1

2

C854

0.1(ML)

C853

47/25

IC853

KIA7805AP

3 1

2

C858

0.1(ML)

IC851,852,853,854

Constant Voltage Regulator

+B

C864

0.1(ML)

+B

DS1SS133

C859

0.1(ML)

(1/2W)

D855

+B

R857

C948

3300/63

C949

3300/63

3.3

C855

0.1(ML)

R858

220

–B

+B

18V

C856

3300/35

BI801

+B2

UNSW_5.6V

+B

• NOTES ON SCHEMATIC DIAGRAM can be found on page 12.

1

23456

Figure 16 SCHEMATIC DIAGRAM (1/11)

– 16 –

XL-HP700

R941

10

(1/2W)

C927

C929

0.22 (ML)

L

R

R957

10

(1/2W)

MAIN PWB-A1(1/3)

C930

C643

0.001

R950

68K

47/50

R949

1K

(1/2W)

CNP971 CNS971

Q906

KTC3203 Y

M_+12.0V

SP_RLY

R_CH

GND

L_CH

HD903

+B

R942

560(2W)

R943

560(2W)

RL914

D911

DS1SS133

Q905

KTC3199 GR

+B

R945

2.2K

0.2V

4.4V

R946

47K

R944

2.2K

R_OUT

L_OUT

+B +B

R947

15K

D912

DS1SS133

C931 10/50

2 1

WT902

1 2 3 4 5

1 2 3

+ +

– –

2 1

FW902

FW903

L-CH R-CH

L-CH_GND R-CH_GND

M971(212-3) FAN MOTOR

+

M

HEADPHONES PWB-A3

HD902

1 2

3 4 5

JACK PWB-A4

R965

1

8.2K

(1/2W)

2

R966

8.2K

(1/2W)

3

WT904

SO901

SPEAKERS

6 OHMS MIN

R967

HEADPHONES

SUB WOOFER

(1/2W) 680

C960

JK951

JK953

3.3/25

01

V

+B

LUG902(229)

1 2 3 4 5 6 7 8

LUG903(229)

CHASSIS

GND

CHASSIS

GND

CNS801

1 2 3 4

CNP801

5

P32 1 - A

6 7

TO POWER PWB

7

8 9 10 11 12

Figure 17 SCHEMATIC DIAGRAM (2/11)

– 17 –

XL-HP700

S

R

B

R

V

220/10

K

C134

IC101

A

B

C

D

E

TAPE MECHANISM

F

Ass'y(210)

G

P25 11 - D

TO CD SERVO PWB

ERASE HEAD

R-CH

L-CH

RECORD/

PLAYBACK HEAD

HEAD PLATE BLOCK(210-1)

CNP9

CNS9

8 7 6 5 4 3 2 1

6

5

4

3

2

1

MAIN PWB-A1(2/3)

1

2

P16 1 - E

3

TO MAIN PWB(1/3)

BI901

R-CH

9

A_GND

8

L-CH

7

CD_GND

6

D_5V +B

5

A-5V

+B

4

D_GND

3

LD+8V

2

+B

1

LD_+8V

7

CD_D_GND

13

A_+5V

11

D_+5V

10

CD_D_GND

P16 1 - F~G

15

TO MAIN PWB(1/3)

16

8 7 6 5 4 3 2 1

CD_A_GND

BI102

ERASE M_GND

T2_R2 A_GND T2_R1 T2_L1 T2_L2

L-CH

A_GND

R-CH

C642

0.001

C641

0.001

R619

330

R618

330

C104 180P

C103 180P

0V

Q603

KTC3199 GR

9.3V

KTA1266 GR

Q102

2SC1845 F

R104

2.2K

0.7V

Q104

2SC1845 F

Q103

2SC1845 F

0.7V

R105

3.3K

0.7V

Q101

2SC1845 F

FM SIGNAL CD SIGNAL AUX SIGNAL

PLAYBACK SIGNAL RECORD SIGNAL

R617

2.2K

C637

0.001

C638

0.001

R616

2.2K

Q604

KTC3199 GR

R645

R646

C640

22/50

KRC104 M

R147

R146

10K 10K

0V

R103

2.2K

R148

4.7K

0V

4.7K

R109

0V

R107

2

0V

2

KRC104 M R112

R110

47K

8.6V

R106

3.3K

Q112

3.3K

R615

Q601

3.3K

R614

Q602

22K

R620

Q113

3.4V

1

3

3.4V

Q114

15K

R108

47K

0V

4.7K Q106

Q105

KTC3199 GR

0V

R613

390

KTC3199 GR

390

R612

18K

22K

R621

3

560P

C106

KTC3199 GR

560P

C105

R605

10K

R611

2.2K

C635

0.001

C636

0.001

R610

2.2K

C639

2.2/50

R149

C141

100/16

C112

100/16

R114

1K

24 23 22 21 20

R113

1K

100/16

R111

150

C113

0.033

C111

C110 330P

C109

330P

R116

56

C114

0.033

R118 R120

100K

– +

Hich=T1 +

–

R117 100K 3.9K

R115

56

15K

R607

3.9K

C116 560P

3.9K

R119

C115 560P

C631

0.0047

112K

C609

1/50

C118

C117

C607

0.15

C611

0.0022

R122

12K

R124

6.8K

47/25

R609

R123

6.8K

R121

220P

C651

220P

C652

1

DI CE

2

VSS

3

LOUT

4

LBASS

5

C605

LTRE

0.12 6

C613

1/50

LIN

7

12K

10K

C615

4.7/50 C617

C619

C621

5 4 3 2 1

LSEL0

8

R150

9

10

11

12

C625

68K

L4

L3

L2

L1

100P

4.7K

R126

R128

5.6K

Hich=CHROME

3.3/50

C143

4.7K

R127

R129

5.6K

C123

1/50

C623 1/50

SPARE

6 7 8 9

0.022

C121

1K

R601 R602

1K

IC601

LC75341

AUDIO PROCESSOR

–

+

CCB

INTERFACE

+

–

+

Q108

KTC3199 GR

0V

1.5K

270P

R130

C124

1.5K

270P

R131

–

+

–

+

TUNER

REC_R

0.7V

R132

C128

C126 22/16

– +

+ –

C125

R133

C127

AUX

DECK

R138

22/16

CD

100

0.022

56K

100

0.022

–

+

0.0033

C130

16 17 18 19

0.0033

C129

+

–

R134

C132

C131

–

+

R136

220K R139

10K 10K

0.7V

10K

47/25

ALC

10 11

47/25

10K

R135

R

22/16

C133

14 15

RIPPLE

Nor/CrO2

ALC

H

• NOTES ON SCHEMATIC DIAGRAM can be found on page 12.

1

23456

Figure 18 SCHEMATIC DIAGRAM (3/11)

– 18 –