Sharp CMSR-500-CDX, CPR-500 Service manual
SHARP
SERVICE
MANUAL
S8449CMSR500X
CMS-R500CDX(BK)
CP-RSOO(BK)
I
DIGITAL AUDIO
/-
SPECIFICATIONS
VOLTAGE
AC POWER SUPLLY CORD AND PLUG
NAMES
OPERATION
DISASSEMBLY
REMOVING AND REINSTALLING THE MAIN PARTS
ADJUSTMENT
BLOCK
SCHEMATIC
WAVEFORMS OF CD CIRCUIT..
TYPES
NOTES ON
TROUBLESHOOTING
FUNCTION TABLE OF IC .
LCD SEGMENT
EXPLODED
REPLACEMENT PARTS
SELECTION
OF PARTS
DlAGRAM
OF TRANSISTOR
....
.............................
MANUAL
......................
.............................................................................
...................
DIAGRAM /WIRING SIDE OF
SCHEMATIC DIAGRAM
............
VlEW
........
INDEX TO CONTENTS
..............................................................................................................
.............
...............
(CD
:::,.::::::;:::::::.
LlST
.............................................................................................
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............................................................................................
.............................................................................................
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. . . . . . . . . .
..............................................................................
P.W.BOARD..
.............................
............................
SECTION)
.............................................................................................
.
. . .
.......
. . . . . . . . . . . . . . . . . . . .
........................................................................
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............................................
.
.
. . . . .....
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.
. .
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. ............................................................
l
In the interests of user-safety the set should be restored to its
condition and only parts identical to those specified be used.
‘.
Page
2
3-5
7,
9,
10
;;;4;
17-93
I I
“L
33
34
34
35-39
40-44
ii-;;
51-56
2
2
6
6
..............................................................
..............
.
. . . . . ..-................. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
............................................................
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
...............................
orioinal
-
SHARP CORPORATION
FOR A COMPLETE DESCRIPTION OF THE OPERATION OF THIS UNIT, PLEASE REFER
TO THE OPERATION MANUAL.
i
m
n
Compact disc stereo music system
0
General
Power source:
Power consumption:
Diemensions:
Weight:
0
Amplifier section
Output power:
Input terminal:
Output terminals:
0
Tuner section
Frequency range:
l
Cassette deck section
Frequency response:
Motor:
Signal/noise ratio:
Wow and flutter:
Bias and erasure system:
Tape speed:
Heads:
SPECIFICATIONS
AC 11
O/l
27/220/230-240 V,
170w
Width; 360 mm (14-3/16”)
Height; 379 mm (14-15116”)
Depth; 386 mm
7.4 kg
PMPO; 400W (total)
MPO;l00W(50W+50w)
(10 % T.H.D.)
AMS; 50 W
(10 % T.H.D.)
VIDEO/AUX; 245 mV/47 kohms
Speakers; 8 ohms
Headphones; 8-50 ohms
(recommended; 32 ohms)
FM; 88 - 108
AM;
531-l
50-14,000 Hz (Nromal tape)
DC motor with electronic
governor x
55 dB (TAPE 1,
50 dt3 (TAPE 2, recording/playback)
0.15 %
AC
4.76 cm/set
TAPE-l: Playback x
TAPE-2:
(15-l/4”)
(16.4 Ibs.)
(25 W + 25 W)
MHz
,602 kHz
1
playback)
(WRMS)
(l-7/8 ips)
Record/playback x
Erase x 1
50160 Hz
1
1
0
Compact disc player section
Type:
Signal readout:
Rotational speed:
Error correction:
Quantization:
Filter:
Frequency response:
Dynamic range:
Wow and flutter:
0
Speaker system
Type:
Maximum input power:
Impedance:
Dimensions:
Weight:
I
5-disc multi-olav comoact disc
player
Non-contact;
200 - 500 rpm CLV,
CIRC
Solomon Code)
16 bit linear
4-times oversampling digital
20 - 20,000
90dB (1 kHz)
Unmeasurable
(less than 0.001 %
3-way
woofer, 5cm (2”)
super
5ow
8 ohms
Width; 200 mm (7-7/E?)
,
Height;
Depth; 179 mm
3.0 kg (6.7 Ibs.)/each
’
semiconductor laser
(Cross Interleave Reed-
type
tweeter]
372 mm (14-11/16”)
Approx.
Hz
Wpeak)
[12cm (4-3/c”)
tweeter
(7-l/16”)
filter
and
Specifications for this model are subject to change without prior
notice.
VOLTAGE SELECTION
The voltage selector is located on the AC voltage selector box.
If adjustment is necessary, use a screwdriver in order to turn the
selector in either direction until the correct voltage figure is
displayed in the window next to the adjustment screw.
AC POWER SUPLLY CORD AND PLUG
92LCORb13186
Q
92LC6RD1393A
92LCSDA1387C
92LPLUG027
92LPLUGi 55A
Figure 2 AC POWER SUPLLY CORD AND PLUG
-2-
m
5-disc multi-play
i.
Dust Cover
2.
Disc Tray (Disc 1 - 5)
3.
Stop
4.
Pause Button:
5. Play Button:
6.
Disc Number Select Buttons
7. Disc Skip Button
8.
Clear Button
9. Memory Button
10.
Random Button
Il.
Track Down/Review Button: HI /
12. Track Up/Cue Button: W I
13.
Repeat Button: CY
14.
Disc Number Indicator
15.
Track Number indicator
16.
Random Indicator
17.
Memory Indicator
18. Extra Bass Indicator: X-SASS
18.
Pause Indicator: II
20.
Repeat Indicator:
21.
Play Indicator:
22. Minutes and Seconds Indicator
H
Stereo synthesizer tuner section
23. Stand-By Indicator
24.
Preset up/~own
25.
Band Selector Button
26. Tuning Up/Down Buttons:
27. Reset
28. Memory Button
compact disc player section
Button:
m
I,
w
c
b
muttons: v//,
Button
VIA
w
t(
NAMES OF
PARTS
/I\
1819
7 8 9 10 11
6
14
‘.- 15
\
2021
1213
16 17
I
22
H
Stereo double cassette deck section
i.
Dubbing Speed Switch
2. TAPE 2) Cassette Compartment
3. TAPE 1) Cassette Compartment
4.
Record Button:
5. Play Button:
6.
Rewind Button:
7. Fast Forward Button:
8. Stop/Eject Button:
9.
Pause Button: II
10. Play
Button: .
i 1.
Rewind Button:
12.
Fast Forward Button:
i
3. Stop/Eject Button:
n
Rear panel
14. FM 300 ohms Aerial Terminal
16. FM 75 ohms/ FM 300 ohms Aerial Terminal
16. FM/AM Aerial Earth Terminal
17.
AM Aerial Terminal
18.
Video (Audio Signal) / Auxiliary Input Sockets
18. Speaker Terminals
20. AC Voltage Selector
21.
AC Power Lead
l
b
+
TAPE
+
U&
Ur
ti
1
t,
4 56 7 8 9 10111213
14
15
16
17
18
19
20
29. Preset Channel Indicator
30.
Bend Indicator
31.
FM Stereo Mode Indicator
32.
33. FM Stereo Indicator:
34.
n
35.
36.
37. Extra
38.
39.
40. Function Selector Buttons
41. Headphones Socket
Indicator
Memory
Frequency
Station
Integrated stereo amplifier section
Power
Switch
Remote Controt tensor
Bass Button : X-BASS
Vohme/Batance control muttons
Equalizer Mode Button
TV
-3-
&ii&@]
36 37 38 39
35
33
40
34
H
Speaker section
22. Tweeter
23.
Super Tweeter
24. Woofer
25.
Bass Reflex Ducts
26.
Speaker wire
-4-
25
22
El
23
24
26
c
n
Names of controls
1.
Remote Control Transmitter Window
0
Tuner control buttons
2. Preset
Up/Down
Buttons:
3. Band Selector Button
0
CD control buttons
4. Memory
5.
6.
7. Repeat Button:
8.
9.
10.
Il.
12.
13.
14.
wt0n
Clear
Button
Random
Button
play Button:
Track Down/Review Button: tl I
Track
Pause Button: II
stop
Disc Number Select Buttons
Disc
)
Up/Cue
Button: t, I
Button:
n
Skip Button
v/r\
c
HI
OPERATION
MANUAL
1
n
Proper use of the remote control
2
3
4
5
6
7
m
15
16
A
(50
r-11
-12
-13
-14
'17
\I8
60”
\I9
Aim the remote control at the remote control sensor within
60”.
with no obstacles, and operate es shown.
Notes concerning use:
l
Replace the batteries if control distance decreases or
operation becomes erratic.
l
Periodically clean the transmitter window on the remote
control and the sensor on the main unit with a soft cloth.
l
Exposing the sensor on the main unit to strong light can
interfere with operation. Chanae the liahtina or the
tion of the unit:
l
Keep the remote control away from moisture, excessive
heat, shock, and vibrations.
l
The remote control’s usable range is between 0.2 m (8”)
and 6 nt
(20’)
away from the sensor.
_ __
direc-
15. Function
16. Power
17.
18.
19.
Selector Buttons
Button
Equalizer Mode Button
Extra Bees Button : X-BASS
Volume Up/Down Buttons:
VI/\
Reset the microcomputer by pertorming the following
procedure for the cesee shown below:
l
To erase all of the stored memory contents, or
l
If the display does not function properly, or
l
The unit does not operate properly.
1 Set the POWER
2
Disconnect the AC power lead from the AC socket.
3
Press the RESET button for at least 3 seconds.
swtch
to STAND-BY.
-5-
-8-
DISASSEMBLY
Caution on Disassembly
Follow the below-mentioned notes when disassembling the
unit and reassembling it, to keep its safety and excellent
periormance:
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 be
removed when disassembling the unit. After servicing the
unit, be sure to rearrange the leads where they were before
disassembling.
4. Take suffcient cars on static electricity of integrated circuits
and
other
clrcults
when servcmg.
Screw
I
/
Figure 8-l
, Tape Mechanism
Figure 8-5
(Ml)xl
+
2.6
x,omm
Socket
/
I
6
Front Panel
7 Display
6
Tape Mechanism 1 Open the cassette holder.
9
Dust Cover
CD Cover
IO
Turntable
11
12
CDServo/
Sensor PWB2.Socket..
13
CD Mechanism1.Screw
1
Front Panel
2
Woofer~weefer
Super Tweeter
2. Socket..
PWB
/
................... (EZ)
...................
1.
Screw..
........ ...........
1. Screw..
................. (HI)
2.
Screw..
1.
See Rg.8.3.
......... ..........
1.
Screw..
......,.........
1.
Screw..
...................
1.
screw..
...
....
............... .......
3 Hook
2. Hook
PROCEDURE/ FIGURE
1. Net
.._....... .,._.......
2. Holder
3.
SCreW
1.
Screw
.._........... (B1
(Fi)
(Gi)
(Ji) x18-3
(Ki)
(Li)
.....
..,
(L2) x5
(L3)
(Ml) xl
(MP)
.(Al) xl
(A2) x4
(A3) x4
x4
x2
x14
x6
xl
x3 8-5
x2
x2
)
)
x8
8-6
6-l
B-1
8-2
8-3
8-4
6-6
a-7
Figure 7-2
Display
PWS
Figure 8-2
Figure 8-3
( Kl
+3xlOmm
) xl
Stabilizer Bracket
Figure 8-6
Figure 6-7
,81,X2
Figure
-7.
7-3.
Figure 6-4
Figure 6-6
TAPE MECHANISM SECTION
Perform steps 1, 2,
remove the tape mechanism.
How to remove the record/playback and erase
heads (TAPE 2) (See Fig. 9-l.)
1. Carefully band the record/playback head
the direction of the arrow
head upwards.
2. Remove the screws
How to remove the playback head (TAPE 1)
(See Fig. 9-2.)
1. Carefully band the playback head
direction of the arrow
upwards.
How to remove the pinch roller (TAPE
(See Fig. 9-3.)
1.
Carefully bend the pinch roller
0,
and remove the pinch roller
How to remove the belt (TAPE 2) (See Fig. 9-4.)
1. Remove the main belt (El) x 1 pc., from the motor side.
2. Remove the FF/REW belt (E2) x 1 pc.
How to remove the belt (TAPE 1) (See Fig. 9-4.)
1. Remove the tape 2 main belt (El) x 1
2. Remove the tape 1 main belt
3. Remove the FF/REW belt (F2) x 1 pc.
How to remove the motor
(See Figs. 9-5 and 9-6.)
1. Remove the belt.
2. Remove the screws
3. Remove the screws (G2) x 2
Note:
When mounting the motor, pay attention to the motor mounting
angle.
34,
5, 6 and 8 of the disassembly method to
paw1
(Al) x 2
PCS.,
PCS.,
in the
@,,
and remove the record/playback
(Bl) x
2
PCS.,
to remove the erase head.
pawl
a,,
and remove the playback head
(Cl) x 2
112)
pawl
in the direction of the arrow
(Di)
upwards.
PC.,
from the motor side.
1
PC.,
from the motor side.
to remova the motor bracket.
PCS.,
to remove the motor.
69
(Gl) x
4
(Fi) x
PCS.,
(Gl)@
in
Play ht,”
Play
Button
Figure 9-l
Figure 9-2
Pinch Roller
(Dl)xl
Playback Head
PeWI
(Ci)x2
CD MECHANISM SECTION
Perform steps
to remove the CD mechanism.
How to remove the pickup
(See Figs. 10-l and 10-2.)
1. After removing the CD mechanism according to the disassembling procedure, remove the screws, (Al) x 4
(A2) x 2
2. Fit a new pickup in reverse order of disassemblrng. After fitting,
lock it with the screw (A3) x 2
3. Connect the connector and lead wire as it was.
4. The
ment of performance of pickup.
Note:
When replacing the pickup do not apply force to the turntable of
spin motor. Otherwise, the height of main chassis and turntable
may be varied.
After replacing the pickup
This new mechanism has been newly designed to enhance
remarkably its performance as compared to the former ones, so
that there is no need to adjust pickup posture,
*
After mounting the pickup, apply voltage to the slide motor, and
ascertain that it runs at DC 1.5 V or less.
How to remove the the CD select motor
(See Fig. 10-3.)
1.
Refer to “Removing the turntable and remove the turntable”
(See Figs. 8-3, 8-4 and 8-5)
2. Remove the belt
3. Remove the select motor mounting screws
1,9,10, 11,12
PCS.,
and replace the pickup.
laserpoweradjustment
(Bl) x
1 pc.
and 13 of the disassembly method
PCS.
and shafts
PCS.
is not necessary owing to improve-
(82) x
2
PCS.
(A2v
Shaft
Pickup
Fiaure IO-1
Rack Gear
Figure 1 O-2
Figure
Fiaure 9-3
Figure 10-3
S-6
-IO-
MECHANISM SECTION
l
Driving Force Check
Torque Meter
Play: TW-2412
l
Torque
Play: TW-2111
Fast forward: TW-2231
Rewind: TW-2231
l
Tape Speed
Check
Torque Meter
30to60 g. cm
55to120
TUNER SECTION
fL:
Low-range frequency
fH:
High-range frequency
l
AM
IF/RF
Signal generator: 400 Hz,
1
Test
Stage
IF
Band
Coverage
Tracking
l
1 Input: Antenna terminal
*2.
Input: Input is not connected.
Frequency
450
-
990
kHz
kHz
30%,
AM modulated
Frequency Specified
Display Value/
1,620 kHz
531
kHz T204(fL):
990
kHz
Specified Value
Tape 1:
Over 50
Tape 2:
Tape 1
g.cm
g
Over
100 g
Specified Value
30 to 60 g.cm
80 to
Adjusting
1
Point
T251
1.1 v+o.1 v
T202
Output: Speaker terminal
Output: TP201
ADJUSTMENT
Tape
2
135 g.cm
Instrument
Connection
‘1
*2
l 1
l
Setting the Test Mode
Keeping the TUNING (DOWN) button and MEMORY button pressed,
turn on POWER. Then the frequency is initially set in the memory as
shown in Table. Call with the PRESET button to use itforadjustment and
check of tuner circuit.
1
2
3
6 - 20
Preset No.
67.50
MHz
108.00 MHz
90.00
MHz
106.00
MHz
98.00
MHz
-
FM
/
531
kHz
1,602 kHz
603 kHz
1,404 kHz
kHz
990
-
AM
. FM IF
Signal generator: 1
Test
Stage Display
IF
*l
Adjust the T201 so that an-output signal become maximum.
l
FMRF
Signal generator: 1
Test Stage Frequency
Band
Coverage
RF
‘I.
Input: Input is not connected.
*2.
Input: Antenna
l
FM
Mute
Signal generator: 1
kHz,
Frequency
10.7
MHz
-
96.00 MHz
(IO-30
Level
kHz,
40 kHz dev., FM modulated
Frequency Adjusting
98.00
MHz
T201 ‘1
kHz,
40
kHz
dev., FM modulated
Frequency
Display
87.50
MHz
L203(fL):
1.85V+50mV
98.00 MHz
dB)
L202
Output: TP201
Output: Speaker terminal
40
kHz
dev., FM modulated
Parts
Serringl
Adjusting Point Connection
’
Instrument
Connection
Input: Pin 1 of
IC201
Outout:
Speaker
terminal
instrument
‘1
‘2
Figure 11 ADJUSTMENT POINTS
-ll-
ANTENNA
TERMINAL
AM TRACKING
n
Extension Cable
When performing adjustment or operation checks, use the extension cables as showm below, when nesessary.
(See Fig.
Ref.
13-4.)
Parts Cord
Connection to be connect
No.
QCNWKOO25AFZZ CNP7-CNS7(13-13 Pin)
A
CD SECTION
“Trackskippingand/ornoTOC(TableOf
by a build up of dust other foreign matter on the
Before attempting any adjustment make certain that the lens is
clean. If not, clean it as mentioned below.”
1. Turn the power off.
2. Gently clean the lens with a lens cleaning tissue and a small
amount of isopropyl alcohol.
Note:
Do not touch the lens with the bare hand.
Contents) maybecaused
iaser
pickup lens.
1. Preparation for Adjustment
1-I.
Remove the CD section from the main unit, and connect the
CD section to the main unit using a jig cable unit.
l-2.
Test mode setting
With the PAUSE II button and STOP n button pressed, turn
on the power switch.
l-3. Test mode operation
When the test mode is entered, the CD mechanism will move
down.
When the ) button is pressed once, the CD mechanism will
move up.
When it is pressed again, the CD mechanism will play. When
the n button is pressed during play, the CD mechanism will
stop.
When it is pressed again, the CD mechanism will move down.
(See Fig. 12-l
.)
2. VCO Free-Run Frequency
Adjustment
Point
When lower than
the specified:
When higher than
the specified: *2
*I:
Cut the R37 (39 kohms).
‘2: Cut the R38 (33 kohms).
Specified Value
Instrument Connection
4 3oo kHz + 150 kliz TPG(VC0) and GND.
’
*I
-
200
kHz
3. Servo Unit
Follow the procedure stated below.
l
Tracking Error Balance
Adjusting
Point
VRl
*1
: When the play modeAPSS w button is pressed, adjustment
of tracking error balance. (Tracking server
obtain symmetric waveform (Figure 12-3.) when DC is 0 V.
After adjustment APSS I+ button is pressed.
(Tracking servo ON)
l
Focus Gain
Adjusting Method
l
1
Instrument Connection
TP9 (T.ER) and GND.
off)
Adjust SO as to
l
Tracking Gain
*3:
Apply sine wave (Oscillation Frequency: 1 .O kHz 0.5 Vrms) as
shown in Figure 13-I.
l
Check HF Output
Adjusting
Adjusting Method
instrument Connection
Point
- -
TPl (HF) and GND.
Make sure that waveform is as shown in Figure 13-2.
Test Mode Start
I
(
CD Mechanism Down
I
1
CD Mechniam Up
Figure
12-l
;..-...‘-.--~..‘-..‘--~---.--..---.
TPS(T.E
SCILLOSCOPE
(GW
1...............-...-----.-~-.----~
TRACKING ERROR
BALANCE ADJ. JIG
Figure 12-2
DC=OV
t
I I I
I I I
/III
I
More than
l.OVp-p
Figure 12-3
‘2: Apply sine
wave (Oscillation
shown in Figure 12-4.
Frequency: 1 .O kHz 0.5 Vrms) as
-12-
**I
I
820
I------_-----------------~
FOCUS GAIN ADJ. JIG
Figure 12-4
--
TP4(TE)?
R45
lk
TPS(TP)
Q
L
-
i-1:
:
0.0082
GND
-
I
I .
:
:
‘--____--__-_--~__~----~-~
0.0082
-
.
TRAC
3.3k
AAL
1
OOk
$$$ -
1 OOk
I
1,,
3.3k
KING GAIN ADJ. JIG
I
Figure 13-1
1 kohm
; -i-
CH-2
i
SIGNAL
GENERP
1 kHz
,TOR
10
0%
I
!
!
’ i j j
I
..
+
/
/
-
- 2.3
1.5
VP - P
1
-
-
Figure 13-2
TP2or4-
A
(V) CH-1
v
I
n
3l~i\AL
-
,,,vLRATOR
I kHz
1 Vrms
1 kohm
The jig (BPF) are recommended to reduce high frequency nois
during alignment. As an alternative, two 1 kohm resistors can
be used to achieve the same results.
Figure 13-3
CD SERVO PWB (TOP VIEW)
%
)
BARANCE
I
A-
Figure 13-4 EXTENSION CABLE
]
-j
FOCUS
GAIN/
nt
Cabmet
^. .^_
R37
,+(fR
,‘/’
‘;\
,<:I ICI ”
R36
.‘\
‘\’
,,+’
x/:x
Figure 13-5 ADJUSTMENT POINTS
L-
SLIDE
t.0TOR
t.41
SPIN
WOTOR
Mz
LOAD I NG
PICKUP UNlT
o-
PlC&j=
IN
d
ALPC
LASER
POWER
CONTROL
LA6524
-RACK I NC
/FOCUS
DR I VER
LASER-
DRIVER c,. 3V
IC7
“RI
z%,” ’ NG
BALANCE
TRACK I NG FOCUS
VR2
GAIN
ICI
LA921
SERVO AMP.
“R3
GAIN
1M
T T. DISC NO.
SENSOR
I
1
vss
PHT,
“.
CD CONTROL
MICROCOMPUTER
IC4
1 XOOO7P
E
;:
FRW AUDIO
FROM IC501QPlN
SECTiON
+7.
+5vcDl
AUDiO
L-CH
R-CH
3v
REGULATOR
CONSTANT
VOLTAGE
VOLTAGE
REGULATOR
E
SECTION
El
Figure 14 BLOCK DIAGRAM (l/2)
-14-
I
I I
/
1
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