Sharp CD-SW200 User manual

CD-SW200
SERVICE MANUAL
In the interests of user-safety the set should be restored to its
original condition and only parts identical to those specified be
used.
No. S2510CDSW200/
SHARP CORPORATION
CONTENTS
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
for after sales service only.
The contents are subject to change without notice.
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 section...................................................... 2-4
[6] Standard Specification of Stereo System
Error Message Display Contents ................... 2-4
[7] 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
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
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......................................................8-9
Parts Guide
CD-SW200
MODEL
CD-SW200 Mini Component System consisting of CD-SW200
(main unit) CP-S200 (front speaker) and CP-SW200 (sub-
woofer).
MINI COMPONENT SYSTEM

CD-SW200
– i –
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 con-
nected 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.
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.
TO EXPOSED
METAL PARTS
CONNECT TO
KNOWN EARTH
GROUND
TEST PROBE
0.15 mF
1.5 kohms
10 W
VTVM
AC SCALE
1. Employing lead-free solder
"Power/Game Input/CD Servo PWB" of this model employs lead-free solder. The LF symbol indicates lead-free solder, and is
attached on the PWB andservice manuals. The alphabetical character following LF shows the type of lead-free solder.
Example:
Indicates lead-free solder of tin, silver and copper.
2. Using lead-free wire solder
When fixing the PWB soldered with the lead-free solder, apply lead-free wire solder. Repairing with conventional lead wire solder
may cause damage or accident due to cracks.
As the melting point of lead-free solder (Sn-Ag-Cu) is higher than the lead wire solder by 40 C, we recommend you to use a
dedicated soldering bit, if you are not familiar with how to obtain lead-free wire solder or soldering bit, contact our service station
or service branch in your area.
3. Soldering
As the melting point of lead-free solder (Sn-Ag-Cu) is about 220 C which is higher than the conventional lead solder by 40 C,
and as it has poor solder wettability, you may be apt to keep the soldering bit in contact with the PWB for extended period of
time. However, Since the land may be peeled off or the maximum heat-resistance temperature of parts may be exceeded,
remove the bit from the PWB as soon as you confirm the steady soldering condition.
Lead-free solder contains more tin, and the end of the soldering bit may be easily corrected. Make sure to turn on and off the
power of the bit as required.
If a different type of solder stays on the tip of the soldering bit, it is alloyed with lead-free solder. Clean the bit after every use
of it.
When the tip of the soldering bit is blackened during use, file it with steel wool or fine sandpaper.
Be careful when replacing parts with polarity indication on the PWB silk.
Lead-free wire solder for servicing
Ref No. DescriptionParts No.
PWB-B 92LPWB6230PWRS Power/Game Input
PWB-C 92LPWB6230CDUS CD Servo

CD-SW200
1 – 1
AudioCD-SW200Service ManualCD-SW200MarketE
CHAPTER 1. GENERAL DESCRIPTION
[1] Specifications
General
Amplifier
Power source AC 120 V, 60 Hz
Power consumption 195 W
Dimensions Width: 10-1/4" (260 mm)
Height: 13" (330 mm)
Depth: 12-7/8" (326 mm)
Weight 22.9 lbs. (10.4 kg)
Output power Front Speaker: 115 watts minimum RMS per
channel into 6 ohms from 100Hz to 20 kHz,
10% total harmonic distortion.
Subwoofer: 220 watts RMS into 12 ohms
from 50Hz to 120 Hz, 10% total harmonic
distortion.
Output terminals Front Speakers: 6 ohms
Subwoofer: 12 ohms
Headphones: 16 - 50 ohms
(recommended: 32 ohms)
Video output: 1Vp-p
Input terminals Game/ Auxiliary (audio signal):
500 mV/ 47 k ohms
Game/Video: 1Vp-p
FOR A COMPLETE DESCRIPTION OF THE OPERATION OF THIS UNIT, PLEASE REFER
TO THE OPERATION MANUAL.
Specifications for this model are subject to change without
prior notice.
CD-SW200
CP-S200
CP-SW200
CD player
Tuner
Cassette deck
Type 5-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)
Frequency range FM: 87.5 - 108.0 MHz
AM: 530 - 1,720 kHz
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 3-way type speaker system
Super tweeter
2" (5 cm) tweeter
5-1/8" (13 cm) woofer
Maximum input
power
230 W
Rated input power 115 W
Impedance 6 ohms
Dimensions Width: 7-1/16" (180 mm)
Height: 13" (330 mm)
Depth: 8-6/16" (212 mm)
Weight 6.6 lbs. (3.0 kg) /each
Type Full Range
8" (20 cm) subwoofer
Maximum input
power
440 W
Rated input power 220 W
Impedance 12 ohms
Dimensions Width: 9-13/16" (250 mm)
Height: 13" (330 mm)
Depth: 11-9/16" (294 mm)
Weight 13 lbs. (5.9 kg)

CD-SW200
1 – 2
[2] Names of parts
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 Jack
13. Disc Number Select Buttons
14. Disc Direct Play Button
15. Disc Tray Open/Close Button
16. Disc Play or Repeat, Tape Play Button
17. Memory/Set Button
18. Tape 2 Record Pause Button
19. Disc or Tape Stop Button
20. Extra Bass (Surround)/Demo Mode Button
21. Volume Control
22. Tape 2 Cassette Compartment
23. Tuner (Band) Button
24. CD Button
25. Tape (1 2) Button
26. Game/Video Button
13
15
21
17
2
5
6
3
1
19
22
14
18
11
12
10
7
8
9
24 25 2623
16
4
20
Display
1. Disc Number Indicators
2. MP3/WMA Folder Indicator
3. MP3/WMA Title Indicators
4. MP3 Indicator
5. WMA Indicator
6. Sleep Indicator
7. Timer Play Indicator
8. Timer Recording Indicator
9. Tape 2 Record Indicator
10. MP3/WMA Total Indicator
11. Daily Timer Indicator
12. FM Stereo Mode Indicator
13. FM Stereo Receiving Indicator
14. Tape Play Indicator
15. Memory Indicator
16. Extra Bass Indicator
17. Disc Repeat Play Indicator
18. Disc Pause Indicator
19. 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. Subwoofer Light-up Jack
7. Video Out Jack
8. Subwoofer Terminals
9. Front Speaker Terminals
3
5
6
7
4
9
8
2
1
13579
11 12 13
10 14
15
16 17
18 19
4268
CD-SW200

CD-SW200
1 – 3
Remote control
1. Remote Control Transmitter
2. Disc Number Select Buttons
3. Cursor Buttons
4. Character Input/Disc Direct Search Buttons
5. Equalizer Mode Select Button
6. Extra Bass (Surround) Button
7. Power On/Stand-by Button
8. CD Button
9. Tuner (Band) Button
10. Tape (1 2) Button
11. Game/Video Button
12. Volume Up and Down Buttons
13. Disc Clear/Dimmer Button
14. Disc Random Button
15. Disc Stop Button
16. Tape Stop Button
17. Memory Button
18. Disc Pause Button
19. Disc Play or Repeat Button
20. Tape Play Button
21. Tape 2 Record Pause Button
22. MP3/WMA Navigation Mode Select Button
23. MP3/WMA Display Button
24. Enter Button
25. Clock/Timer Button
26. Character Button
27. Disc Track Down or Fast Reverse, Tape Rewind,
Tuner Preset Down, Time Down Button
28. Disc Track Up or Fast Forward, Tape Fast Forward
Tuner Preset Up, Time Up Button
10
11
12
25 26 27 28
8
9
7
1
2
4
3
5
6
13
18
20
21
15
16
19
17
14
22 23 24
CD
CD-SW200
CP-S200
CP-SW200
1. Tweeter
2. Super Tweeter
3. Woofer
4. Bass Reflex Duct
5. Speaker Wire
1. Subwoofer
2. Bass Reflex Duct
3. Subwoofer Light-Up Wire
4. Speaker Wire
1
24
3
5
11
2
4
3

CD-SW200
2 – 1
AudioCD-SW200Service ManualCD-SW200MarketE
CHAPTER 2. ADJUSTMENTS
[1] Mechanism section
• Driving Force Check
• Torque Check
• Tape Speed
[2] Tuner section
fL: Low-range frequency
fH: High-range frequency
• AM IF/RF
Signal generator: 400 Hz, 30%, AM modulated
•FMRF
Signal generator: 1 kHz, 40 kHz dev., FM modulated
•FMIF
Signal generator: 10.7 MHz, FM modulated
Torque Meter Specified Value
Play: TW-2111 Tape 1: Over 80 g
Tape 2: Over 80 g
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
— 70 to 180 g.cm
Test Tape Adjust-
ing Point
Specified
Value
Instrument
Connection
Normal
speed
MTT-111 Variable
Resistor in
motor.
3,000 ±30 Hz
Speaker
Speaker Ter-
minal (Load
resistance: 6
ohms)
Figure 1
Test Stage Frequency Frequency
Display
Setting/
Adjusting
Parts
Instrument
Connection
AM IF 450 kHz 1,720 kHz T351 *1
AM Band
Coverage
— 530 kHz (fL): T306
1.1 ±0.1 V
*2
AM
Tracking
990 kHz 990 kHz (fL): T303 *1
*1. Input: Antenna Output: TP302
*2. Input: Antenna Output: TP301
TAPE MECHANISM
Tape
Motor
Variable Resistor in motor
Test
Stage
Frequency Frequency
Display
Setting/
Adjusting
Point
Instrument
Connection
FM Band
Coverage
— 87.50 MHz T301 (fL):
1.3 V ±0.1 V
*1
FM RF 98.00 MHz
(10-30 dB)
98.00 MHz L312 *2
*1. Input: Antenna Output: TP301
*2. Input: Antenna Output: Speaker terminal
Test
Stage
Frequency Frequency
Display
Setting/Adjust-
ing Point
Instrument
Connection
IF 10.7 MHz 98 MHz T302 (Turn the
core of trans-
former T302
fully counter
clockwise)
*1
Figure 2 Adjustment Points
AM
LOOP
ANTENNA
IC302
T351
T301
IC303
T303
T306
T302
L312
CNP301
SO302
IC301
TP302
TP301
AM TRACKING fL
AM BAND
COVERAGE fL
AM IF
FM RF
FM IF
FM OSC
FM ANTENNA
TERMINAL
TUNER PWB-D
20
R356
C393

CD-SW200
2 – 2
[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.
IL isn’t done
OPEN/CLOSE operation is using manual. IL isn’t done
<< >>,<< >>buttons make pick's slide possible. IL isn’t done
to page 2-3
<<PLAY>> key input.
C D T E S T
A
Do TOC IL. Do normal play.
When these following key is input into PLAY key, track num-
ber can be appoint directly.
<<MEMORY>>
key input.
<< 1 >> key: Track 4
<< 2 >> key: Track 9
<< 3 >> key: Track 15
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. G E Q — F L AT
X-BASS — OFF
To cancel: Power OFF

CD-SW200
2 – 3
Sliding the PICKUP with<< >>, << >> button must only be
in STOP mode.
<<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) “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. G E Q — F L AT
X-BASS — OFF
To cancel: Power OFF
A

CD-SW200
2 – 4
[4] CD SECTION
•Adjustment
Since this CD system incorporates the following automatic adjust-
ment 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
[5] CD section
CD Error code description
* '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.
[6] Standard Specification of Stereo System Error Message Display Contents
(*) CHECKING:
If CD changer mechanism error is detected, ‘CHECKING’ will be dis-
play 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, the unit will automatically enter to stand-by mode and Timer
indicator will Flashing as below.
+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 but-
ton, press the ON/STAND-BY button. The Micro Computer version
number will be displayed as “CN******”.
3. Press OPEN/CLOSE button until “WAIT”→“FINISHED” appears.
4. Unplug the AC cord and the unit is ready for transporting.
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.
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.
FM 87.5 MHz
TIMER
LED
ON FLASHING
1 FRAME (REPEAT)
FLASHINGON
NO. 1
NO. 2
NO.1:+BPROTECTION
NO. 2 : Speaker abnormal
Example: In case of speaker abnormal
NO. 2
NO. 1
OFF OFF OFF OFF

CD-SW200
2 – 5
[7] CD Changer mechanism section
• A number in the drawing sheet is the number of the parts guide
(CHANGER MECHANISM PARTS).
140
141
HALF GEAR
MUST ARRANGE AS SHOWN
1

CD-SW200
2 – 6
139
2
APPLY SANKOL BEFORE FIX
FIX ITEM 1 ACCORDING TO THE
SHOWN PICTURE ABOVE
ROTATE MODE BIG GEAR UNTIL REACH AS SHOWN IN PICTURE

CD-SW200
2 – 7
APPLY GREASE
PULL THE LEVER UNITIL
REACH THE ARROW MARK
143
112
3

CD-SW200
2 – 8
FIGURE 1
FIGURE 2
APPLY GREASE SLOT CLAMP SW ARM INSIDE BASE SLOT
152
142
118
4

CD-SW200
2 – 9
127
128
5
APPLY GREASE AT BOTTOM SIDE
OF GEAR FOLLOW MARKING
NO NEED APPLY GREASE AT BOTTOM
SIDE
O.K
BLACK MARK
FIGURE 1
N.G
OTHER THAN FIGURE 1 DIRECTION ALL N.G
APPLY GREASE AT
TOP SIDE OF GEAR
FOLLOW MARKING

CD-SW200
2 – 10
APPLY GREASE AT
HALF GEAR AREA
ROTATE CLOCKWISE UNTIL REACH HERE (MAXIMUM)
6
129

CD-SW200
2 – 11
CHANGE COLOR TO BLACK
150151148
7

CD-SW200
2 – 12
124
131
TRAY BIG GEAR
CHANGE COLOR
TO BLACK
TRAY BIG GEAR
CHANGE COLOR
TO BLACK
GREASE APPLICATION LENGTH
GREASE APPLICATION PORTION
MUST FREE FROM GREASE THE SHOWN AREA
O.K
N.G
SHOWN HOLE MUST FACING ARROW DIRECTION
8

CD-SW200
2 – 13
TR-RE JOINT GEAR C
APPLY GREASE AT
BOTTOM SIDE ONLY
APPLY GREASE ONLY AT TOP SIDE GEAR
MUST FIX ACCORDING TO THE HOLE'S
138 126 125
9

CD-SW200
2 – 14
10
148 147 146 145

CD-SW200
2 – 15
APPLY GREASE
WHEN FIXING ITEM 2 MUST FOLLOW AS SHOWN
121
144
130
11