SHARP CDMPS600 Service Manual

CD-MPS600/CD-MPS66

SERVICE MANUAL

No. S4415CDMPS600

MINI COMPONENT SYSTEM

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-MPS600 Mini Component System consisting of CD-MPS600
(main unit) and CP-MPS600 (speaker system).

CD-MPS600

MINI COMPONENT SYSTEM

MODEL

CD-MPS66 Mini Component System consisting of CD-MPS66
(main unit) and CP-MPS66 (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.

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-MPS66

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-MPS600/CD-MPS66

IMPORTANT SERVICE NOTES

BEFORE RETURNING THE AUDIO PRODUCT

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 1.5 kohm, 10 watt resistor paralleled

by a 0.15 µF 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.

TO EXPOSED
METAL PARTS

VTVM

AC SCALE

1.5 kohms
10 W

0.15 mF

TEST PROBE

CONNECT TO
KNOWN EARTH
GROUND

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.

– i –

AudioCD-MPS600/CD-MPS66Service ManualCD-MPS600/CD-MPS66MarketE

CHAPTER 1. GENERAL DESCRIPTION

[1] Specifications

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

CD-MPS600/CD-MPS66

CD-MPS600/CD-MPS66

General

Power source AC 120 V, 60 Hz
Power consump-

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

Weight 17.2 lbs. (7.8 kg)

108 W

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

Amplifier

Output power 120 watts minimum RMS per channel into 6

Output terminals Speakers: 6 ohms

Input terminals Game/Auxiliary (audio signal):

ohms from 100 Hz to 20 kHz, 10% total har­monic distortion

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

Video output: 1Vp-p

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

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)

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-MPS600/CP-MPS66

Type 2-way type speaker system

Maximum input
power

Rated input power 120 W

Impedance 6 ohms

Dimensions Width: 9-7/8" (252 mm)

Weight 7.9 lbs. (3.6 kg)/each

50 - 14,000 Hz (normal tape)

50 dB (TAPE-2 recording/playback)

with passive radiator

2" (5 cm) tweeter

5-1/8" (13 cm) woofer
4" (10 cm) passive radiator

240 W

Height: 13" (330 mm)
Depth: 9-13/16" (249 mm)

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

1 – 1

CD-MPS600/CD-MPS66

[2] Names of parts

CD-MPS600/CD-MPS66

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

10

11

12

13

1

2
3

4

5
6
7

8

9

14
15
16
17

18
19
20
21

22
23

24

25

26

28 29 3027

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 5321 7 8

6

9131110 12

14 15 16

17 18

3

4

5

6

1

7

1 – 2

2

CD-MPS600/CD-MPS66

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

CD-MPS600/CD-MPS66

1

2

3

4

5
6

7
8
9

15

16

17
18

19
20
21
22
23
24

25
26

CP-MPS600/CP-MPS66

1. Tweeter

2. Passive Radiator

3. Woofer

4. Speaker Wire

1

2

3

4

1 – 3

CD-MPS600/CD-MPS66

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

1

AudioCD-MPS600/CD-MPS66Service ManualCD-MPS600/CD-MPS66MarketE

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)

Instrument

Connection

*1

Instrument

Connection

*1

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

2 – 1

[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.

CD-MPS600/CD-MPS66

C D T E S T

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

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

A

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

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

CD-MPS600/CD-MPS66

<<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.

A

<<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.

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 – 3

[4] CD section

F

z

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

CD-MPS600/CD-MPS66

(*) 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 ‘VIDEO/AUX’ button during version number display and then
press ‘POWER’, ‘MEMORY/SET’ and ‘VIDEO/AUX’ 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

CD-MPS600/CD-MPS66

[5] CD Changer mechanism section

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

1

141

2 – 5

140

HALF GEAR
MUST ARRANGE AS SHOWN

2

CD-MPS600/CD-MPS66

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-MPS600/CD-MPS66

3

143

APPLY GREASE

112

PULL THE LEVER UNITIL
REACH THE ARROW MARK

2 – 7

4

CD-MPS600/CD-MPS66

FIGURE 2

FIGURE 1

152

142

APPLY GREASE

118

SLOT CLAMP SW ARM INSIDE BASE SLOT

2 – 8

CD-MPS600/CD-MPS66

5

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

6

CD-MPS600/CD-MPS66

APPLY GREASE AT
HALF GEAR AREA

ROTATE CLOCKWISE UNTIL REACH HERE (MAXIMUM)

129

2 – 10

CD-MPS600/CD-MPS66

7

CHANGE COLOR TO BLACK

150151148

2 – 11

8

CD-MPS600/CD-MPS66

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-MPS600/CD-MPS66

9

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

10

CD-MPS600/CD-MPS66

148 147 146 145

2 – 14

CD-MPS600/CD-MPS66

11

121

144

WH EN FIXING ITEM 2 MUST FOLLOW AS SHOWN

APPLY GREASE

130

2 – 15

12

CD-MPS600/CD-MPS66

117

FIGURE 2

FIGURE 1

APPLY GREASE

FIGURE 3

APPLY GREASE SC141

2 – 16

CD-MPS600/CD-MPS66

13

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

14

APPLY GREASE BEFORE FIX

A

MOVE 112 UNTIL TOUCH THE WALL

B

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

CD-MPS600/CD-MPS66

SCREW TORQUE

+0.5

2 kgf-cm

-0

108 803 x6

APPLY GREASE

CONFIRM WHETHER
FIXED
PROPELY OR NOT

2 – 18

CD-MPS600/CD-MPS66

15

APPLY GREASE

115

BEHIND THE LEVER NEED TO APPLY GREASE

PULL IT THEN LEVER WILL
MOVE IN

2 – 19

16

CD-MPS600/CD-MPS66

123

115

APPLY GREASE

APPLY GREASE BEFORE FIX

APPLY GREASE
AT BOSS

SPRING MUST ARRANGE UNDER THE HOOK

BOARD R

BOARD R

O.K LR JOINT LEV

LR JOINT LEV

N.G

2 – 20

CD-MPS600/CD-MPS66

17

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

18

CD-MPS600/CD-MPS66

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-MPS600/CD-MPS66

19

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

20

CD-MPS600/CD-MPS66

BIG SLOT FACING OUT

110

2 – 24

CD-MPS600/CD-MPS66

21

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

N.G

2 – 25