Sharp CDMPS-700 Service manual

CD-MPS700

SERVICE MANUAL

No. XXXXXXXXXXXXX

MINI COMPONENT SYSTEM

CONTENTS

CHAPTER 1. GENERAL DESCRIPTION

[1] Specifications ................................................. 1-1

[2] Names of parts............................................... 1-2

CHAPTER 2. ADJUSTMENTS

[1] Mechanism section ........................................ 2-1

[2] Tuner section ................................................. 2-1

[3] TEST MODE .................................................. 2-2

[4] CD section...................................................... 2-4

[5] CD Changer mechanism section ................... 2-5

CHAPTER 3. MECHANISM BLOCKS

[1] Caution on diassembly................................... 3-1

[2] Removing and reinstalling the main parts ........ 3-4

MODEL

CD-MPS700 Mini Component System consisting of CD-MPS700 (main unit) and CP-MPS700 (speaker system).

CHAPTER 6. CIRCUIT SCHEMATICS AND PARTS LAYOUT

[1] Schematic diagram ........................................6-1

[2] Wiring side of PWB...................................... 6-11

CHAPTER 7. FLOWCHART

[1] Troubleshooting .............................................7-1

CHAPTER 8. OTHERS

[1] Function table of IC .......................................8-1

[2] FL Display....................................................8-10

Parts Guide

CD-MPS700

CHAPTER 4. DIAGRAMS

[1] Block diagrams............................................... 4-1

CHAPTER 5. CIRCUIT DESCRIPTION

[1] Notes on schematic diagram.......................... 5-1

[2] Types of transistor and LED........................... 5-1

[3] Waveforms of CD circuit ................................ 5-2

[4] Voltage ........................................................... 5-3

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.

This document has been published to be used

SHARP CORPORATION

for after sales service only. The contents are subject to change without notice.

CD-MPS700

AudioCD-MPS700Service ManualCD-MPS700MarketE

CHAPTER 1. GENERAL DESCRIPTION

[1] Specifications

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

CD-MPS700

General

Power source AC 120 V, 60 Hz Power

consumption Dimensions Width: 10-1/4" (260 mm)

Weight 18.5 lbs. (8.4 kg)

Amplifier

Output power MPO: 600 W (300 W + 300 W) (10 % T.H.D.)

Output terminals Speakers: 6 ohms

Input terminals Game/ Auxiliary (audio signal):

CD player

Type 5-disc multi-play compact disc player Signal readout Non-contact, 3-beam semiconductor laser

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

response Dynamic range 90 dB (1 kHz)

135 W

Height: 13" (330 mm) Depth: 12-7/8" (326 mm)

RMS: 300 W (150 W + 150 W) (10 % T.H.D.) RMS: 180 W (90 W + 90 W) (0.9 % T.H.D.)

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

Video output: 1Vp-p

500 mV/ 47 k ohms Game/Video: 1 Vp-p/75 ohms

pickup

20 - 20,000 Hz

Tuner

Frequency range FM: 87.5 - 108.0 MHz

AM: 530 - 1,720 kHz

Cassette deck

Frequency response

Signal/noise ratio 55 dB (TAPE 1, playback)

Wow and flutter 0.3 % (WRMS)

CP-MPS700

Type 3-way type speaker system with passive

Maximum input power

Rated input power 150 W

Impedance 6 ohms

Dimensions Width: 10-7/8" (277 mm)

Weight 8.6 lbs. (3.9 kg)/each

50 - 14,000 Hz (normal tape)

50 dB (TAPE 2, recording/playback)

radiator

Super tweeter 2

2" (5 cm) tweeter 1

6-1/2" (16 cm) woofer 1

4" (10 cm) passive radiator

300 W

Height: 13" (330 mm) Depth: 11" (279 mm)

Specifications for this model are subject to change without

prior notice.

1 – 1

[2] Names of parts

CD-MPS700

Front panel

1. Disc Trays

2. Timer Indicator

3. Power On/Stand-by Button

4. Disc Track Up or Fast Forward, Tape 2 Fast Forward, Tuner Preset Up, Time Up Button

5. Clock/Timer Button

6. Tuning Up Button

7. Tuning Down Button

8. Disc Track Down or Fast Reverse, Tape 2 Rewind, Tuner Preset Down, Time Down Button

9. Equalizer Mode Select Button

10. Tape 1 Cassette Compartment

11. Headphone Jack

12. Game/Video Input Jacks

13. Disc Number Select Buttons

14. Disc Direct Play Button

15. Disc Tray Open/Close Button

16. Character Button

17. Enter Button

18. Disc Play or Repeat, Tape Play Button

19. Memory/Set Button

20. Tape 2 Record Pause Button

21. MP3 Disc Navigation Mode Select Button

22. Disc or Tape Stop Button

23. Cursor Buttons

24. Extra Bass/Demo Mode Button

25. Volume Control

26. Tape 2 Cassette Compartment

27. Tuner (Band) Button

28. CD Button

29. Tape (1 2) Button

30. Game/Video Button

CD-MPS700

2 3

5 6 7

28 29 3027

14 15 16 17

18 19 20 21

22 23

Display

1. Disc Number Indicators

2. MP3 Folder Indicator

3. MP3 Title Indicators

4. MP3 Total Indicator

5. Sleep Indicator

6. Timer Play Indicator

7. Timer Recording Indicator

8. Tape 2 Record Indicator

9. Daily Timer Indicator

10. FM Stereo Mode Indicator

11. FM Stereo Receiving Indicator

12. Memory Indicator

13. Tape Play Indicator

14. MP3 Disc Indicator

15. Extra Bass Indicator

16. Disc Repeat Play Indicator

17. Disc Pause Indicator

18. Disc Play Indicator

Rear panel

1. Cooling Fan

2. AC Power Cord

3. FM 75 Ohms Antenna Terminal

4. FM Antenna Ground Terminal

5. AM Loop Antenna Jack

6. Video Output Jack

7. Speaker Terminals

4 532167 8

9131110 12

14 15 16

1 – 2

CD-MPS700

Remote control

1. Remote Control Transmitter

2. Disc Number Select Buttons

3. Clock/Timer Button

4. Character Input/Disc Direct Search Buttons

5. MP3 Disc Navigation Mode Select Button

6. Enter Button

7. Memory/Set Button

8. Tape 2 Record Pause Button

9. Disc Track Down or Fast Reverse, Tape 2 Rewind, Tuner Preset Down, Time Down Button

10. Disc or Tape Stop Button

11. CD Button

12. Tuner (Band) Button

13. Equalizer Mode Select Button

14. Extra Bass Button

15. Power On/Stand-by Button

16. Disc Random Button

17. Character Button

18. Cursor Buttons

19. Disc Clear/Dimmer Button

20. Disc Pause Button

21. Disc Track Up or Fast Forward, Tape 2 Fast Forward, Tuner Preset Up, Time Up Button

22. Disc Play or Repeat, Tape Play Button

23. Tape (1 2) Button

24. Game/Video Button

25. MP3 Disc Display Button

26. Volume Up and Down Buttons

10 11

12 13 14

5 6

7 8 9

17 18

19 20 21 22 23 24

25 26

CP-MPS700

1. Tweeter

2. Passive Radiator

3. Woofer

4. Super Tweeters

5. Speaker Wire

1 – 3

AM IF

FM RF

TP301

TP302

FM IF

T301

T302

R356

R381

T303

T306

IC301

L312

T351

CNP301

AM/FM LOOP ANTENNA

FM BAND COVERAGE fL

AM BAND COVERAGE fL

AM TRACKING fL

MAIN PWB

AudioCD-MPS700Service ManualCD-MPS700MarketE

CHAPTER 2. ADJUSTMENTS

[1] Mechanism section

• Driving Force Check

Torque Meter Specified Value

Play: TW-2111 Tape 1: Over 80 g

• Torque Check

Torque Meter Specified Value

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

• Tape Speed

Test Tape Adjust-

Normal

MTT-111 Variable

speed

Tape 2: Over 80 g

Tape 1 Tape 2

— 70 to 180 g.cm

ing Point

Resistor in motor.

Specified

Value

3,000 ± 30 Hz Speaker

Instrument

Connection

Speaker Terminal (Load resistance: 6 ohms)

•FM RF

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

Test

Stage

Frequency Frequency

Display

Setting/

Adjusting

Point

FM Band Coverage

FM RF 98.00 MHz

— 87.50 MHz T301 (fL):

1.3 V ± 0.1 V

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

Display

Setting/Adjust-

ing Point

IF 10.7 MHz 98 MHz T302 (Turn the

core of transformer T302 fully counter clockwise)

CD-MPS700

Instrument

Connection

Instrument

Connection

TAPE MECHANISM

Tape Motor

Variable Resistor in motor

Figure 1

[2] Tuner section

fL: Low-range frequency

fH: High-range frequency

• AM IF/RF

Signal generator: 400 Hz, 30%, AM modulated

Test Stage Frequency Frequency

AM IF 450 kHz 1,720 kHz T351 *1 AM Band

Coverage AM

Tracking

*1. Input: Antenna Output: TP302

— 530 kHz (fL): T306

990 kHz 990 kHz (fL): T303 *1

*2. Input: Antenna Output: TP301

Display

Setting/

Adjusting

Parts

1.1 ± 0.1 V

Figure 2 Adjustment Points

Instrument

Connection

2 – 1

CD-MPS700

[3] TEST MODE

• Setting the test mode

During stand-by mode, press ON/STAND-BY button while pressing

down the button and X-BASS/DEMO button. then, press the CD button to enter the test mode.

C D T E S T

OPEN/CLOSE operation is using manual. IL isn’t done

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

to page 2-3

<<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

IL isn’t done

<<MEMORY>> key input.

Adjustment result automatically will display as below for each 2 sec: a) "FOF_XXXX" b) "TOF_XXXX" c) "TBAL_XX" d) "TGAN_XX" f) "FGAN_XX" g) "RFLS_XX"

<<STOP>> key input.

STOP

explanation: a) Focus off set = "FOF_XXXX" b)Tracking off set = "TOF_XXXX" c)Tracking balance = "TBAL_XX" d)Tracking Gain = "TGAN_XX" f) Focus Gain = "FGAN_XX" g) RF level shift = "RFLS_XX" VOL — Last memory P.GEQ — FLAT X-BASS — OFF To cancel : Power OFF

––––––––

2 – 2

<<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.

CD-MPS700

<<MEMORY>> key input.

Adjustment result automatically will display as below for each 2 sec : a) "FOF_XXXX" b) "TOF_XXXX" 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.

2 – 3

CD-MPS700

[4] CD section

CD Error code description

Error Explanation

01 When Pickup set inner position, inner switch cannot detect

'ON' level for 10 secs. 10* CAM error. Can't detect CAM switch when CAM is moving. 11* When it detect cam operation error during initialize pro-

cess. 20* TRAY error. Can't detect TRAY switch when TRAY is mov-

ing. 21* When it detect TRAY operation error during initialize pro-

cess.

31 When it change to CD function, DSP cannot read initial

data.

* 'CHECKING'

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

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 CD DSP Communication Error. 'ER-CD31' DSP COMMUNICATION ERROR. Focus Not Match/IL Time Over. 'NO DISC'

TUNER PLL Unlock. PLL Unlock.

M 87.5 MH

(*) CHECKING:

If CD changer mechanism error is detected, 'CHECKING' will be display instead of 'ER-CD**'. 'ER-CD**' display will only be display when 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

occurred, it can be check by pressing 'POWER', ' ' and 'X-BASS' button. MicroComputer version number will displayed as "XM******".

Press ‘GAME/VIDEO’ button during version number display and then press ‘POWER’, ‘MEMORY/SET’ and ‘GAME/VIDEO’ button. 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.

BEFORE TRANSPORTING THE UNIT

The following process need to be taken after set tapering/parts replacement.

1. Press the ON/STAND-BY button to enter stand-by mode.

2. While pressing down the button and the X-BASS/DEMO button, press the ON/STAND-BY button. The Micro Computer version number will be displayed as "XM******".

3. Press OPEN/CLOSE button until "WAIT"→ "FINISHED" appears.

4. Unplug the AC cord and the unit is ready for transporting.

2 – 4

[5] CD Changer mechanism section

• A number in the drawing sheet is the number of the parts guide (CHANGER MECHANISM PARTS).

CD-MPS700

141

2 – 5

140

HALF GEAR MUST ARRANGE AS SHOWN

CD-MPS700

139

APPLY SANKOL BEFORE FIX

FIX ITEM 1 ACCORDING TO THE SHOWN PICTURE ABOVE

ROTATE MODE BIG GEAR UNTIL REACH AS SHOWN IN PICTURE

2 – 6

CD-MPS700

143

APPLY GREASE

112

PULL THE LEVER UNITIL REACH THE ARROW MARK

2 – 7

CD-MPS700

FIGURE 2

FIGURE 1

152

142

APPLY GREASE

118

SLOT CLAMP SW ARM INSIDE BASE SLOT

2 – 8

CD-MPS700

APPLY GREASE AT BOTTOM SIDE OF GEAR FOLLOW MARKING

NO NEED APPLY GREASE AT BOTTOM SIDE

FIGURE 1

APPLY GREASE AT TOP SIDE OF GEAR FOLLOW MARKING

127

OTHER THAN FIGURE 1 DIRECTION ALL N.G

O.K

128

N.G

BLACK MARK

2 – 9

CD-MPS700

APPLY GREASE AT HALF GEAR AREA

ROTATE CLOCKWISE UNTIL REACH HERE (MAXIMUM)

129

2 – 10

CD-MPS700

CHANGE COLOR TO BLACK

150151148

2 – 11

CD-MPS700

TRAY BIG GEAR CHANGE COLOR TO BLACK

MUST FREE FROM GREASE THE SHOWN AREA

O.K

GREASE APPLICATION LENGTH

GREASE APPLICATION PORTION

N.G

124

TRAY BIG GEAR CHANGE COLOR TO BLACK

SHOWN HOLE MUST FACING ARROW DIRECTION

131

2 – 12

CD-MPS700

138 126 125

APPLY GREASE AT BOTTOM SIDE ONLY

TR-RE JOINT GEAR C

APPLY GREASE ONLY AT TOP SIDE GEAR

MUST FIX ACCORDING TO THE HOLE'S

2 – 13

CD-MPS700

148 147 146 145

2 – 14

CD-MPS700

121

144

WH EN FIXING ITEM 2 MUST FOLLOW AS SHOWN

APPLY GREASE

130

2 – 15

CD-MPS700

117

FIGURE 2

FIGURE 1

APPLY GREASE

FIGURE 3

APPLY GREASE SC141

2 – 16

CD-MPS700

ITEM 2 , 3 MUST APPLY GREASE ON TOP SIDE GEAR ONLY

134

GEAR 112 GEAR 112

133

132

O.K

TOP VIEW AFTER ASSY

N.G

FIX REVERSE N.G

2 – 17

CD-MPS700

APPLY GREASE BEFORE FIX

MOVE 112 UNTIL TOUCH THE WALL

DURING GEAR A ROTATE MUST PRESS SHOWN AREA AND LEVER B WILL MOVE ARROW DIRECTION THEN FIX PART 108

SCREW TORQUE

+0.5

2 kgf-cm

-0

108 803 x6

APPLY GREASE

CONFIRM WHETHER FIXED PROPELY OR NOT

2 – 18

CD-MPS700

APPLY GREASE

115

BEHIND THE LEVER NEED TO APPLY GREASE

PULL IT THEN LEVER WILL MOVE IN

2 – 19

CD-MPS700

123

115

APPLY GREASE

APPLY GREASE BEFORE FIX

APPLY GREASE AT BOSS

SPRING MUST ARRANGE UNDER THE HOOK

BOARD R

O.K LR JOINT LEV

LR JOINT LEV

N.G

2 – 20

CD-MPS700

ASSY REVERSELY N.G

103 137 136

APPLY GREASE

BIG SLOT MUST FACING OUT WH EN FIX & AFTER FIX TO BASE CHASSIS AFTER ASSY CONFIRM THE FREE DROP

GEAR POSITION DURING FIXING

2 – 21

CD-MPS700

ASSY REVERSELY N.G

APPLY GREASE

114

135

136

BIG SLOT MUST FACING OUT

WH EN FIX & AFTER FIX TO BASE CHASSIS AFTER ASSY CONFIRM THE FREE DROP

GEAR POSITION DURING FIXING

CONFIRM BOTH GEAR SIT PROPELY & LOCKED

2 – 22

CD-MPS700

AFTER FIX OUTER UP/DOWN LEVER HOLD SHOWN PORTION AND MOVE UP/DOWN THEN CONFIRM LEVER GO INSIDE THE HOLE OR NOT

120

BIGGER SLOT FACING OUT

IF GO INSIDE HOLE IS O.K

IF NO GO INSIDE HOLE IS N.G

119

BIGGER SLOT FACING OUT

2 – 23

CD-MPS700

BIG SLOT FACING OUT

110

2 – 24

CD-MPS700

PUSH THE LEVER ACCORDING TO ARROW DIRECTION THEN FIX

WH EN FIX MAIN BASE ASSY FOLLOW ACCORDING TO O.K PICTURE

MAKE SURE MECHA HOLDER SHAFT FIX PROPELY TO LEVER

O.K

N.G

2 – 25

CD-MPS700

APPLY SANKOL

101

102

APPLY SANKOL AT TRAY SLIDING PORTION

APPLY SANKOL ON TOP

FIX TRAY NO 1 FIRST THAN FOLLOW OTHER

APPLY SANKOL INSIDE THE SLOT & OTHER SHOWN PORTION

RIB

COSMO GUIDE TRAY HAVE MARKING AS SHOWN

2 – 26

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