Sharp CMS-R600X(BK) User manual

CMS-R600X/R600XT
SERVICE MANUAL
No. S8644CMSR600X
SHARP CORPORATION
• SRS technology Licensed from SRS Labe. SRS technology holds
the follwing patents: U.S. Patent No. 4,748,669, U.S. Patent No.
4,841,572 and U.S. Patent No. 4,866,774.
• SRS the SRS Logo ( ) and the SOUND RETRIEVAL SYSTEM
are registered trademarks of SRS Labs, Inc.
• In the interests of user-safety the set should be restored to its
original condition and only parts identical to those specified
should be used.
CMS-R600X(BK)
CMS-R600XT(BK)
Illustration: CMS-R600X(BK)
Page
SPECIFICATIONS ............................................................................................................................................................. 2
VOLTAGE SELECTION..................................................................................................................................................... 2
NAMES OF PARTS ........................................................................................................................................................... 3
OPERATION MANUAL...................................................................................................................................................... 5
DISASSEMBLY.................................................................................................................................................................. 6
REMOVING AND REINSTALLING THE MAIN PARTS..................................................................................................... 8
ADJUSTMENT................................................................................................................................................................. 10
NOTES ON SCHEMATIC DIAGRAM .............................................................................................................................. 12
TYPES OF TRANSISTOR AND LED .............................................................................................................................. 12
BLOCK DIAGRAM ........................................................................................................................................................... 13
SCHEMATIC DIAGRAM / WIRING SIDE OF P.W.BOARD............................................................................................. 16
WAVEFORMS OF CD CIRCUIT...................................................................................................................................... 36
LCD DISPLAY.................................................................................................................................................................. 37
TROUBLESHOOTING (CD SECTION) ........................................................................................................................... 38
FUNCTION TABLE OF IC ............................................................................................................................................... 42
REPLACEMENT PARTS LIST/EXPLODED VIEW
CONTENTS
DIFFERENCE BETWEEN CMS-R600X(BK) AND CMS-R600XT(BK)
CMS-R600XT(BK)CMS-R600X(BK)
POWER AC 110/127/220/230-240 V, AC 220 V, 50 Hz
SOURCE 50/60 Hz
SPEAKER
SRS

CMS-R600X/R600XT
FOR A COMPLETE DESCRIPTION OF THE OPERATION OF THIS UNIT, PLEASE REFER
TO THE OPERATION MANUAL.
92LCoRD577B
General
Power source: AC 110/127/220/230-240 V,
(CMS-R600X) 50/60 Hz
Power source: AC 220 V, 50 Hz
(CMS-R600XT)
Power consumption: 170 W
Dimensions: Width; 360 mm (14-3/16")
Height; 390 mm (15-3/8")
Depth; 379 mm (14-15/16")
Weight: 7.3 kg (16.1 lbs.)
Amplifier section
Output power: PMPO; 300 W (total)
MPO; 84 W (42 W + 42 W)
(10 % T.H.D.)
RMS; 50 W (25 W +25 W)
(10 % T.H.D.)
Input terminals: VIDEO/AUX; 245 mV/47 kohms
Output terminals: Speakers; 8 ohms
Headphones; 8 - 50 ohms
(recommended; 32 ohms)
Tuner section
Frequency range: FM; 88 - 108 MHz
AM; 531 - 1,620 kHz
Cassette deck section
Frequency response: 50 - 14,000 Hz (Normal tape)
Motor: DC motor with electronic governor
x 1
Signal/noise ratio: 55 dB (TAPE 1, playback)
50 dB (TAPE 2, recording/
playback)
Wow and flutter: 0.15 % (WRMS)
Bias and erasure system: AC
Tape speed: 4.76 cm/sec. (1-7/8 ips.)
Heads: TAPE-1; Playback x 1
TAPE-2; Record/Playback x 1
Erase x 1
Compact disc player section
Type: 5-disc multi-play compact disc
player
Signal readout: Non-contact; semiconductor laser
Rotational speed: 200 - 500 rpm CLV, Approx.
Error correction: CIRC (Cross Interleave Reed-
Solomon Code)
Quantization: 16-bit linear
Filter: 4-times oversampling digital
filter
D/A Converter: 1-bit D/A converter
Frequency response: 20 - 20,000 Hz
Dynamic range: 90 dB (1 kHz)
Wow and flutter: Unmeasurable
(less than 0.001% W. peak)
Speaker system (CMS-R600X ONLY)
Type: 3-way type [13 cm (5-1/8")
woofer,
5 cm (2") tweeter and super
tweeter]
Maximum input power: 50 W
Rated power: 25 W
Impedance: 8 ohms
Dimensions: Width; 215 mm (8-1/2")
Height; 390 mm (15-3/8")
Depth; 195 mm (7-11/16")
Weight: 3.4 kg (7.5 lbs.)/each
SPECIFICATIONS
– 2 –
VOLTAGE SELECTION
Before operating the unit on mains, check the preset voltage. If the votage is different from your local voltage. Slide the AC power
supply socket cover by slightly loosing the screw to the visible indication of the side of your local voltage.
QACCE0005AW00 92LPLUG155A 92LPLUG027
Specifications for this model are subject to change without
prior notice.
Figure 2 AC POWER SUPPLY CORD AND AC PLUG ADAPTOR

CMS-R600X/R600XT
NAMES OF PARTS
Front panel
1. Disc Tray
2. Disc Number Select Buttons
3. Disc Skip Button
4. Open/Close Button:
5. Power Switch
6. (TUNER) Memory Button
7. Tuning Up/Down Buttons:
8. Timer Indicator
9. Remote Control Sensor
10. Reset Button
11. Band Selector Button
12. Preset and Time Up/Down Buttons:
13. Disc Number Indicator
14. Extra Bass Indicator: X-BASS
15. Record Indicator: REC
16. Function/CD Track/CD Counter/Frequency/
Preset Channel/Volume Indicator
17. CD Pause Indicator:
18. CD Play Indicator:
19. Memory Indicator
20. CD Repeat Indicator:
21. SRS Indicator (CMS-R600X ONLY)
22. FM Stereo Mode Indicator: ST
23. FM Stereo Indicator:
24. Equalizer Mode Buttons
25. Extra Bass Button: X-BASS
26. Function Selector Buttons
27. Volume Up/Down Buttons:
28. Editing Speed Selector Buttons
29. CD Pause Button
30. Record Pause Button
31. (CD/TAPE) Stop Button:
32. (CD) Track Down/Review Button:
(TAPE) Rewind Button:
33. (CD) Track Up/Cue Button:
(TAPE) Fast Forward Button:
34. (CD) Play/Repeat Button:
(TAPE) Play Button:
35. Memory/Set Button
36. Clock/Timer Button
37. (TAPE 1) Cassette Compartment
38. (TAPE 2) Cassette Compartment
39. Level Meters
40. 3D Surround Mode Button (CMS-R600X ONLY)
41. Headphone Socket
1234
567
8910
11
12
37 38
39 40 41
24 25 26 27
28 3029 31 32 33 34 35 36
54321
X-BASS
REC
ST
MEMORY
5432
X-BASS
REC
ST
MEMORY
kHz
MHz
SRS
16
13 14 15
17 18 19 22
23
20 21
– 3 –
(Illustration: CMS-R600X)

CMS-R600X/R600XT
Rear panel
1. Speaker Terminals
2. Phono Power Supply Socket (DC 12V)
(CMS-R600X ONLY)
3. AC Power Input Socket
4. AC Voltage Selector (CMS-R600X ONLY)
5. FM 75 ohns Aerial Terminal
6. Aerial Earth Terminal
7. AM Loop Aerial Socket
8. Phono Input Sockets (CMS-R600X ONLY)
9. Video (Audio Signal) / Auxiliary Input Sockets
10. Phono/Auxiliary/Video Input Selector Switch
(CMS-R600X ONLY)
11. Span Selector Switch (CMS-R600X ONLY)
1
2
3
4
5
6
7
8
9
10
11
Remote Control
1. Remote Control Transmitter LED
2. 3D Surround Mode Button (CMS-R600X ONLY)
CD control section
3. Disc Number Select Buttons
4. Track Down/Review Button:
5. Disc Skip Button
6. Pause Button:
7. Random Button
8. Play/Repaet Button:
9. Stop Button:
10. Memory Button
11. Track Up/Cue Button:
12. Clear Button
Tape Control Section
13. (TAPE 1) Stop Button:
14. (TAPE 1) Play Button:
15. (TAPE 2) Rewind Button:
16. (TAPE 2) Fast Forward Button:
17. (TAPE 2) Stop Button:
18. (TAPE 2) Play Button:
19. (TAPE 2) Record Pause Button:
Tuner control section
20. Band Selector Button
21. Preset Up/Down Buttons:
22. Function Selector Buttons
23. Balance Control Buttons
24. Power Button
25. Extra Bass Button: X-BASS
26. Equalizer Mode Selector Button
27. Volume Up/Down Buttons:
– 4 –
Speaker Section
12. Tweeter
13. Super Tweeter
14. Woofer
15. Bass Reflex Ducts
16. Speaker Wire
12
13
14
16
15
25
26
27
19 20 21
1
2
5
6
7
11 1210 9
8
1413
22
23
24
3
4
15 16 17 18
(Illustration: CMS-R600X)

CMS-R600X/R600XT
OPERATION MANUAL
SETTING THE CLOCK
Setting method when the POWER switch is in the STAND-BY
position.
1 Press the MEMORY/SET button.
When the power is ON, press the CLOCK/TIMER button.
Then, within 5 seconds, press the MEMORY/SET button.
2 Press the PRESET/TIME ( or ) button to select the time
display.
PRESET/
TIME ( )
CLOCK/
TIMER
MEMORY/
SET
1
2
AM 0:00 AM 12:000:00
3
4
5
6
7
"0:00" → The 24-hour display will appear.
(0:00 - 23:59)
"AM 0:00" →The 12-hour display will appear.
(AM 0:00 - PM 11:59)
"AM 12:00" →The 12-hour display will appear.
(AM 12:00 - PM 11:59)
3
Press the MEMORY/SET button.
4 Press the PRESET/TIME ( or ) button to adjust the hour.
Press the PRESET/TIME button once to advance the time by
1 hour. Press for more than 0.5 seconds to advance continu-
ously.
When the 12-hour display is selected, "AM" will change auto-
matically to "PM".
5 Press the MEMORY/SET button.
6 Press the PRESET/TIME ( or ) button to adjust the
minutes.
Press the button for at least 0.5 seconds to advance continu-
ously.
The hour setting will not advance even if minutes advance
from "59" to "00".
7 Press the MEMORY/SET button.
The clock starts operating from "0" seconds. (Seconds are
not displayed.)
Note:
In the event of a power failure or when the AC power lead
is disconnected, the clock display will go out.
When the AC power supply is resumed, the clock display will
flash on and off to indicate that the time must be reset.
If this happens, follow steps 1 and 4 - 7 in the procedure
described above.
To change the clock time:
1 Whilst the clock is displayed, press the MEMORY/SET button.
When the power is ON, press the CLOCK/TIMER button.
Then, within 5 seconds, press the MEMORY/SET button.
2 Perform steps 4 - 7 above.
To see the time display: (When the power is ON)
Press the CLOCK/TIMER button.
The time display will appear for about 5 seconds.
To switch the time display mode:
1 Set the POWER switch to STAND-BY.
2 Whilst holding down the CLOCK/TIMER button, press the
POWER switch twice.
3
Perform steps 1 - 7 above.
In this example, the clock is set for the 24-hour
(0:00) system.
15
15
Notes concerning use:
Replace the batteries if control distance decreases or oper-
ation becomes erratic.
Periodically clean the transmitter LED on the remote control
and the sensor on the main unit with a soft cloth.
Exposing the sensor on the main unit to strong light may in-
terfere with operation. Change the lighting or the direction of
the unit.
Keep the remote control away from moisture, excessive heat,
shock, and vibrations.
0.2 m - 6 m
(8" - 20')
PREPARATION FOR USE
RESETTING THE MICROCOMPUTER
Reset the microcomputer by performing the following
procedure for the cases shown below:
To erase all of the stored memory contents, or
If the display does not function properly, or
The unit does not operate properly.
1 Set the POWER switch to STAND-BY.
2 Disconnect the AC power lead from the AC socket.
3 Press the RESET button for at least 3 seconds.
RESET
– 5 –

CMS-R600X/R600XT
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.Takeoffnylonbandsorwireholderswheretheyneedbe
removed when disassembling the unit. After servicing
theunit,besuretorearrangetheleadswheretheywere
before disassembling.
4. Take suffcient care on static electricity of integrated
circuits and other circuits when servicing.
Figure 6-3
MAIN UNIT
1 Top Cabinet 1. Screw .....................(A1) x4 6-1
2 Side Panel 1. Screw .....................(B1) x6 6-1
(Left/Right)
3 CD Player Unit/ 1. Turn on the power supply,.
CD Tray Cover open the disc tray, take out
the CD cover, and close.
(Note 1)
2. Hook ...................... (C1) x2 6-2
3. Screw .................... (C2) x5
4. Flat Wire .................(C3) x1
5. Socket ................... (C4) x2 6-3
4 Back Board 1. Screw .................... (D1) x8 6-2
5 Front Panel 1. Screw .....................(E1) x3 6-3
2. Socket .................... (E2) x4
3. Flat Cable.............. (E3) x3
6 Main PWB/ 1. Screw ..................... (F1) x3 6-3
SRS PWB 2. Socket .................... (F2) x1
3. Flat Wire ................. (F3) x1
7 Power PWB 1. Screw .................... (G1) x5 6-3
8 Tape Mechanism 1. Open the cassette holder.
2. Flat Wire .................(H1) x1 7-1
3. Screw .................... (H2) x6
9 Switch PWB 1. Screw ..................... (J1) x4 7-1
10 Display PWB 1. Screw .....................(K1) x9 7-1
11 Headphones PWB 1. Screw .....................(L1) x1 7-1
12 Level Meter PWB 1. Screw ................... (M1) x2 7-2
13 Switch PWB 1. Screw .................... (P1) x2 7-2
14 Turntable 1. Screw .................... (Q1) x2 7-3
2. Cover..................... (Q2) x1
15 CD Tray 1. Screw .................... (R1) x4 7-3
2. Guide..................... (R2) x2
16 CD Servo PWB 1. Screw .....................(S1) x2 7-4
17 Sensor PWB 1. Screw .....................(T1) x1 7-4
2. Hook ....................... (T2) x2
18 CD Mechanism 1. Screw .................... (U1) x2 7-5
STEP REMOVAL FIGURE
PROCEDURE
Note 1: If the power supply cannot be turned on, <A> turn the
pulleybyhandasshownin Figure6-2 toopenthedisc
tray.
SPEAKER BOX [CMS-R600X ONLY]
1 Speaker 1. Front Panel ............. (A1) x1 7-6
2. Screw ......................(A2) x4 7-7
3. Screw ......................(A3) x2
STEP REMOVAL PROCEDURE FIGURE
– 6 –
(A1) x 2
ø3 x 12mm Top Cabinet
Side Panel
Side Panel
(A1) x 2
ø3 x 12mm
(B1) x 2
ø3 x 10mm
(B1) x 2
ø3 x 10mm
(B1) x 2
ø3 x 12mm
Figure 6-1
(C2) x 1
ø3 x 10mm
(C2) x 1
ø3 x 10mm (C1) x 1
(C1) x 1
CD Tray Cover
CD Player Unit
(D1) x 3
ø3 x 8mm
(D1) x 3
ø3 x 12mm
(C2) x 3
ø3 x 12mm
(D1) x 2
ø3 x 8mm (C3) x 1
Pulley <A>
Figure 6-2
(G1) x 1
ø3 x 10mm
(G1) x 4
ø4 x 6mm
(E2) x 2
(E2) x 2
(F2) x 1
(F3) x 1
(C4) x 1
(C4) x 1
Front Panel
(E1) x 3
ø3 x 10mm
(F1) x 2
ø3 x 10mm
(F1) x 1
ø3 x 10mm
(E3) x 3
Power PWB
Main PWB
SRS
PWB

CMS-R600X/R600XT
Figure 7-3
(T1) x 1
ø3 x 10mm
(S1) x 2
ø3 x 10mm
(T2) x 2
Sensor PWB
CD Servo
PWB
CD Tray
Figure 7-4
(U1) x 2
Special
CD Mechanism
Figure 7-5
Front Panel
(A1) x 1
Screw Driver
Figure 7-6
(A2) x 4
ø 4 x 32mm (A3) x 2
ø 4 x 32mm
Figure 7-7
(Q1) x 2
ø3 x 10mm
(R1) x 2
ø3 x 10mm (R2) x 1
(R2) x 1
Turntable (Q2) x 1
CD Tray
(R1) x 2
ø3 x 10mm
Loading
Chassis
Figure 7-1
(J1) x 4
ø3 x 10mm
(K1) x 9
ø3 x 10mm
(L1) x 1
ø3 x 8mm
Headphones PWB Tape
Mechanism
Display PWB
Front Panel
(H2) x 6
ø3 x 10mm
Switch PWB
(H1) x 1
Figure 7-2
(P1) x 1
ø3 x 10mm (P1) x 1
ø3 x 10mm
(M1) x 2
ø3 x 10mm
Level Meter PWB
Switch PWB
– 7 –

CMS-R600X/R600XT
REMOVING AND REINSTALLING THE MAIN PARTS
Figure 8-5
Erase Head Record/Playback
Head
Pawl (B1) x3 Pawl (A1) x2
TAPE 2
<B>
<B> <B>
<A> <A>
Figure 8-4
Figure 8-3
Figure 8-2
Figure 8-1
TAPE MECHANISM SECTION
Performsteps1,2,3,4,5 and 8 of the disassembly method to
remove the tape mechanism.
How to remove the record/playback and erase
heads (TAPE 2) (See Fig. 8-1.)
1. Carefully bend the record/playback head pawls (A1) x 2
pcs., in the direction of the arrow <A> , and remove the
record/playback head upwards.
2. Carefully bend the three pawls (B1) x 3 pcs., in the arrow
direction <B>, and remove the erase head upward.
How to remove the playback head (TAPE 1)
(See Fig. 8-2.)
1.Carefullybendtheplaybackhead pawls(C1) x2pcs.,inthe
direction of the arrow <C>, and remove the playback head
upwards.
How to remove the pinch roller (TAPE 1/2)
(See Fig. 8-3.)
1. Carefully bend the pinch roller pawl in the direction of the
arrow <D>, and remove the pinch roller (D1) upwards.
Note:
When installing the pinch roller, pay attention to the spring
mounting method.
How to remove the belt (TAPE 1) (See Fig. 8-4.)
1. Remove the main belt (E1) x 1 pc., from the motor side.
How to remove the motor
(See Figs. 8-4 and 8-5.)
1. Remove the belt.
2. Remove the screws (G1) x 2 pcs., to remove the motor
fixture.
3. Remove the screws (G2) x 2 pcs., to remove the motor.
Note:
Whenmountingthemotor,payattentiontothemotormounting
angle.
How to remove the belt (TAPE 2) (See Fig. 8-4.)
1. Remove the tape 1 main belt (E1) x 1pc., from the motor
side.
2. Remove the tape 2 main belt (F1) x 1pc., from the motor
side.
3. Remove the FF/REW belt (F2) x 1 pc.
Playback Head
Pawl (C1) x2
TAPE 1
<C>
<C>
Pinch Roller (D1) x1
Pawl
<D>
(G1) x2
ø2 x4mm
Motor
(G2) x2
ø2 x4mm
Motor Bracket
Motor TAPE 1
TAPE 2
FF/REW Belt
(F2) x1
Flywheel Main Belt
(F1) x1 Main Belt
(E1) x1
Flywheel
Motor
TAPE 2
Main Belt
(F1) x1 TAPE 1
Main Belt
(E1) x1
– 8 –

CMS-R600X/R600XT
Figure 9-3
Figure 9-1
Figure 9-2
( C1 ) x2
ø2.6 x6mm
( C2 ) x1 ( C3 ) x1 ( C4 ) x1
CD Mechanism
Pickup
( A1 ) x2
ø2.6 x5mm
Loading Motor
CD Tray
( B1 ) x2
ø2.6 x5mm
CD Tray
Turntable
Up/Down Motor
CD MECHANISM SECTION
Perform steps 1, 2, 3, 14, 15 and 16 of the disassembly
method to remove the CD mechanism.
How to remove the loading motor
(See Fig. 9-1)
1. Remove the screws (A1) x 2 pcs., to remove the loading
motor.
How to remove the pickup (See Fig. 9-3)
1.Removethe screws (C1)x2pcs., to removetheshaft(C2).
2. Remove the stop washer (C3) x 1 pc., to remove the gear
(C4).
3. Remove the pickup.
How to remove the turntable up/down motor
(See Fig. 9-2)
1. Remove the screws (B1) x 2 pcs., to remove the turntable
up/down motor.
– 9 –

CMS-R600X/R600XT
TAPE MECHANISM SECTION
• Driving Force Check
Torque Meter Specified Value
Play: TW-2412 Tape 1: Over 50 g
Tape 2: Over 100 g
• Torque Check
Torque Meter
Tape 2
Play: TW-2111 30 to 60 g. cm 30 to 60 g.cm
Fast forward: TW-2231 — 80 to 135 g.cm
Rewind: TW-2231 — 80 to 135 g.cm
Specified
Value
Adjusting
Point Instrument Connection
Test Tape
Normal MTT-111 VRM1 3,000 ±Speaker
speed 30 Hz terminal
(Load
resistance:
8 ohms)
ADJUSTMENT
Specified Value
Tape 1
• Tape Speed
*1. Input: Antenna, Output: TP301
*2. Input: Antenna, Output: Speaker terminal
• FM RF
Signal generator: 1 kHz, 75 kHz dev., FM modulated
• Detection
Signal generator: 10.7 MHz, FM sweep generator
IF 10.7 MHz 98.00 MHz T301(Turn Input: Pin 1 of
the core of IC301
transformer Output: TP302
T301 fully
counter-
clookwise.)
Instrument
Connection
Test
Stage Adjusting Parts
Frequency
Display
Frequency
• AM IF/RF
Signal generator: 400 Hz, 30%, AM modulated
TUNER SECTION
fL: Low-range frequency
fH: High-renge frequency
*1. Input: Antenna, Output: TP302
*2. Input: Antenna, Output: TP301
Figure 10 ADJUSTMENT POINTS
– 10 –
Band — 87.50 MHz L303(fL): *1
Coverage 1.85 V ±50 mV
RF 98.00 MHz 98.00 MHz L302 *2
(10-30 dB)
Test Stage Instrument
Connection
Frequency Frequency
Display Serring/ Adjusting
Point
IF 450 kHz 1,720 kHz T351 *1
Band — 530 kHz (fL): T333 *2
Coverage 3.4 V ±0.1 V
Tracking 990 kHz 990 kHz (fL): T331 *1
Test Stage Frequency Frequency
Display Setting/
Adjusting
Parts
Instrument
Connection
Adjusting
Parts Instrument Connection
Frequency
Display
Frequency
• FM Mute Level
98.00 MHz 98.00 MHz VR351 *1 Input: SO301
(25 dBµV) Output: Speaker
Terminal
*1 Adjust so that an output signal appears.
TAPE MECHANISM PWB-G
VRM1
TAPE
SPEED
L303
T331
T301
L302
CNP301
T351
T333
1
12
24
2113
IC351
IC301
FM RF
AM TRAKING fL
AM LOOP ANTENNA
FM IF
AM IF
VR351
R358
C364
TP302
FM BAND
COVERAGE fL
FM MUTE
LEVEL
AM BAND
COVERAGE fL
1
1
2
MAIN PWB-A1
TP301
SO301
ANTENNA
TERMINAL