Sharp CDM-4000-W, CPM-4000 Service manual
CD-M4000W/CP-M4000
DIGITAL
sr-uUH=
AUDIO
SERVICE MANUAL
No.
S9156CDM4000W
MINI
MODEL
COMPONENT
CD-M4000W
SPEAKER
MODEL
9
In the interests of user-safety the set should be restored to its
original condition and only parts identical to those specified be
used.
CP-M4000
SYSTEM
SYSTEM
/
SAFETY
VOLTAGE
AC
SPECIFICATIONS
NAMES
OPERATION
DISASSEMBLY..
REMOVING
ADJUSTMENT
BLOCK
SCHEMATIC DIAGRAM/WIRING SIDE OF P.W.BOARD..
VOLTAGE
NOTES
TYPES
WAVEFORMS
TROUBLESHOOTING..
FUNCTION
FL
REPLACEMENT PARTS LIST/EXPLODED VIEW
PRECAUTION
SELECTION
POWER
DISPLAY..
SUPPLY
OF PARTS
MANUAL..
AND REINSTALLING THE MAIN
.................................................................................................................................................................
DIAGRAM
............
ON SCHEMATIC
OF TRANSISTOR AND LED................................................................................................................................
OF
TABLE OFIC.................................................................
....................................................................................................................................................................
FOR SERVICE
.....................................................................................................................................................
CORD AND
..........
.
.................................................................................................................................................
...........................................................................................................................................................
......
AL..
...
-
...................
...........................................................................................................................................................
............................................................................................................................................................
CD
.............................................................................................................................................
DIAGRAM
CIRCUIT..
.
.................................................................................................................................................
MANUAL
AC PLUG
..
...................................................................................................................................
..............................................................................................................................
....................................................................................................................................
CONTENTS
...........................................................................................................
ADAPTOR .................................................................................................
PARTS..
Page
.................................................................................................
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.:.
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2
2
3
3
4
6
1:
13
17
.20
38
39
39
40
41
45
53
SHARP
CORPORATION
This document has been published to be used
for after sales service only.
The contents are subject to change without notice.
Cd-M4000W/CP-M4000
SAFETY PRECAUTION FOR SERVICE MANUAL
WARNINGS
THE AEL (ACCESSIBLE EMISSION LEVEL) OF THE LASER POWER OUTPUT IS LESS THAN CLASS 1 BUT THE LASER
COMPONENT IS CAPABLE OF EMITTING RADIATION EXCEEDING THE LIMIT FOR CLASS 1. THEREFORE IT IS
IMPORTANTTHATTHE
AGAINST EXPOSURE TO THE LASER BEAM.
l-WHEN THE CABINET IS REMOVED, THE POWER IS TURNED ON WITHOUT A COMPACT DISC IN POSITION AND THE
PICKUP IS ON THE OUTER EDGE THE LASER WILL LIGHT FOR SEVERAL SECONDS TO DETECT A DISC. DO NOT
LOOK INTO THE PICKUP LENS.
P-THE
LASER POWER OUTPUT OF THE PICKUP UNIT AND REPLACEMENT SERVICE PARTS ARE ALL FACTORY
PRESET BEFORE SHIPMENT.
DO NOT ATTEMPT TO READJUST THE LASER PICKUP UNIT DURING REPLACEMENT OR SERVICING.
3-UNDER NO CIRCUMSTANCES STARE INTO THE PICKUP LENS AT ANY TIME.
4-CAUTION-USE OF CONTROLS OR ADJUSTMENTS, OR PERFORMANCE OF PROCEDURES OTHER THAN THOSE
SPECIFIED HEREIN MAY RESULT IN HAZARDOUS RADIATION EXPOSURE.
FOLLOWING PRECAUTIONS ARE OBSERVED DURING SERVICING TO PROTECT YOUR EYES
Laser Diode Properties
Material:
Wavelength: 780 nm
Emission Duration: continuous
Laser Output: max. 0.6 mW
GaAlAs
CLASS 1 LASER PRODUCT
APPAREIL i LASER DE CLASSE 1
PRODUCT0 LASER DE CLASE 1
VOLTAGE SELECTION
Before operating the unit on mains, check the preset voltage. If the voltage is different from your local voltage, adjust the yoltage
as follows.
Turn the selector with a screwdriver until the appropriate voltage number appears in the window (1
-2-
IO V,
127 V, 220 V or 230 V-240 V AC).
QACCA0003AWOO
BzjggK
CD-M4000W/CP-M4000
AC POWER SUPPLY CORD AND AC PLUG ADAPTOR
QACCL0005AWOO
a
1
G-Dj
0
-
I
I
1 K=
QACCE0008AWOO
n
Amplifier
QPLGA0003AWZZ
QPLGA0004AWZZ
FOR A COMPLETE DESCRIPTION OF THE OPERATION OF THIS UNIT, PLEASE REFER
TO THE OPERATION MANUAL.
SPECIFICATIONS
n
Tuner
MPO: 520 W (260 W + 260 W) (10 % T.H.D.)
RMS: 300 W (150 W + 150 W) (10 % T.H.D.)
Frequency range
w
Cassette deck
Frequency response
Signal/noise ratio/ 55 dB (TAPE 1, Dlavbackl
Wow and flutter
FM: 88 AM:
531
50 14,000
150 dB
(TAPE 2,
IO.3
% IWRMS1
108
MHz
1,602 kHz
Hz (Normal tape)
&&din&playback)
n
CD player
Video/Auxiliary (audio signal): 500 mV/47 kohms
TYPO
Maximum input power
(Total)
Rated input power
(Total)
Impedance
Dimensions
Weight
4-way type speaker system
Super
Tweeter
8
cm
(3-118”) Tweeter
8
cm
(3-118”)
25 cm
300
150w
6
ohms
Width:
Height’ 330 mm (13”)
Depth: 306 mm (12-1116”)
8.5 kg (18.7
Midrange
(lo”)
Woofer
W
422 mm (16-518”)
Ibs.)/each
Specifications for this model are subject to change without
prior notice.
-3-
CD-M4000W/CP-M4000
n
Front panel
1.
Disc Tray
P.Timer Set Indicator
3.On/Stand-by
4. Tape 2 Cassette Compartment
5. Tape 1 Cassette Compartment
6. Equalizer Mode Select Button
7. Volume Control
8. Monster Bass/Demo Mode Button (with Indicator)
9. Disc Tray Open/Close Button
lO.Disc Number Select Buttons (with indicator)
11
.Disc Skip Button
lZ.Tuning and Time Up Button
13.Tape
14.CD
15Tuner (Band) Button
16.Tape (1- 2) Button
17.Video/Auxiliary Button .
18.Dimmer Button
19.Clock
SO.Timer/Sleep
21 .Headphone Socket
22.CD or Tape Stop Button (with indicator)
23.CD Play or Repeat, Tape 1 Play,
24.Tape 2 Reverse Mode Select Button
25.CD Track Up or Fast Forward, Tape 2 Fast Wind,
26.Tuning
27.Memory/Set
28.Tape 2 Record Pause Button
29.CD Track Down or Fast Reverse, Tape 2 Fast Wind,
30,Microphone Level Control
31 .Microphone Socket
2 Reverse Play Button (with Indicator)
Button
Tape 2 Forward Play Button (with Indicator)
Tuner Preset Up Button
Tuner Preset Down Button
Button
Button
Button
and Time Down Button
Button
2
3
12
13 14
r
1516
17
26 27 28 293031
n
Display
1.
FM Stereo Mode Indicator
2. FM Stereo Receiving Indicator
3. Karaoke Mode Indicator
4. CD Repeat Play Indicator
5. CD Pause Indicator
6. CD Play Indicator
7. Tape 2 Record Indicator
8. Tape Reverse Mode Indicator
9. Disc Number Indicators
lO.Timer Play Indicator
11
.Memory Indicator
lP.Tape 2 Reverse Play Indicator
13.Tape 1
14.Sleep
15.Timer
16.Spectrum
Play or Tape 2 Forward Play Indicator
Indicator
Recording Indicator
AnalyserNolume Level Indicator
-4-
2345
61
1R I
ii 13i4i5
n
Rear panel
1.
FM 75 Ohms Aerial Terminal
2. FM Aerial Earth Terminal
3. AM Loop Aerial Socket
4. Span Selector Switch
S.Video/Auxiliary (Audio Signal)
6. Speaker Terminals
7. AC Power Lead
8. AC Voltage Selector
input
CD-M4000W/CP-M4000
Sockets
n
Remote
1. Remote Control Transmitter
2. Echo Level Up and Down Buttons
3. Karaoke Mode Button
4. Disc Number Select Buttons
5. CD Clear Button
6. Tape 2 Record Pause Button
7. CD Track Down or Fast Reverse, Tape 2 Fast Wind,
Tuner Preset Down Button
8. Equalizer Mode Select Button
9. Tape 2 Reverse Play Button
lO.CD Button
11
.Tuner (Band) Button
12.0n/Stand-by
13.Monster Bass Button
14.CD
Random Button
15.CD
Memory Button
16.CD
Pause Button
17.CD Track Up or Fast Forward, Tape 2 Fast Wind,
Tuner Preset Up Button
18.CD or Tape Stop Button
19.CD
Play or Repeat, Tape 1 Play,
Tape 2 Forward Play Button
PO.VideolAuxiliary Button
2l.Tape
(1
22.Volume
control
Button
-
2) Button
Up and Down-Buttons
- .-
A2
*
3
A5
IO
11
12
13
1
14
15
16
17
18
19
20
21
22
Q
is
‘4
6
7
8
9
Buttons with “A” mark in the illustration can be operated on the remote control
only.
Other buttons can be operated both on the main unit and the remote control.
-5-
Cd-M4000W/CP-M4000
n
Speaker system
1.
Tweeter
2.
Super Tweeter
3.
Midrange
4.
Woofer
5. Bass Reflex
6.
Speaker Terminals
Due
1
2
4
5
6
3
OPERATION MANUAL
System Connections
n
Setting the AC voltage selector
Check the setting of the
ging the
unit
into a wall so&et. If necessary, adjust the selector to correspond to the
AC power voltage used I” your area.
Turn the selector with a screwdriver until the appropriate voltage number appears in the window (110 V, 127 V, 220 V or 230 V - 240 V AC).
q
Connecting
After making all connections, plug the unit. If you plug the unit first,
the unit will enter the demonstration mode.
Note:
Unplug the AC power lea&from the wall socket if the
longed period of time.
AC Plug Adaptor
In areas
(or
countries) where a wall socket as shown I” illustration Q is used, connect
the unit
using
adaptor IS not included in areas where the wall socket and AC power plug can be
directly connected (see
AC
voltage selector
the AC power lead
the AC plug adaptor
lllustratlon 0).
located an the rear panel before plug-
unit
will not be in use for a pro-
supplled
with the
urxt,
as illustrated The AC plug
n
Setting
The International Telecommuntcatlon
trues
should maintain either a 100
quencles
the
5019 kHz
Before “sing the
Interval (span)
To change the tuning zone:
1
Press the ON/STAN D-B,’
2
Set the SPAN SELECTOR switch (on the rear panel) as follows.
. For 50
. For 100
3 Whilst pressmg
STAND-BY
Caution:
This operation
tuner preset, and CD
the FM/AM span selector
Union
(ITU) has establlshed that member coun-
kHz or
of FM statons and 10
zones (regons 1 and
““It,
set the SPAN SELECTOR swtch (on the rear panel) to the
Of your area
kHz
FM
interval (9 kHz in.AM) +
kHz
FM
Interval (10 kHz ,n
down the t button and the MONSTER-BASS button. press the ON,
burton
until “CLEAR AL” appears.
will erase all data stored in
programme.
a 50 kHz interval between broadcasting fre-
kHz or
9
kHz
for AM station. The
3),
and the
lOOI kHz zone
button
to enter the stand-by mode.
5019
AM)
--* iOO/lO
memory
Including clock,
illustration
(region 2)
timer
shows
settings,
-6-
Setting the Clock
In this example, the clock is set for the 24.hour
Press the ON/STAND-BY button to turn the power on.
!
Press the CLOCK button and within 5 seconds, press the MEMO.
RY/SET
button.
1
Press the TUNING/TIME (v or A) button to select
hour display and then press the MEMORY/SET button.
“0:oo”
“AM
“AM
Note that this can only be set when the unit IS first installed or it has been reset.
12:OO”
OXlO”
+
The
24-hour display
(0:OO - 23:59)
The 12.hour display will appear.
+
(AM 12’00 -PM
+
The
12-hour display
(AM
O:OO.
PM
will appear.
,159)
will appear.
11:59)
CO:001 disolav.
._
24-hour
or
CD-M4000W/CP-M4000
4
Press the
TUNlNGfrlME (v
press the MEMORY/SET button.
.
Press the TUNlNG,TlME (v or A) button once to advance the time by 1
Hold it down to advance contnuousiy.
Press the TUNING/TIME (v or A) button to adjust the minutes and
then press the MEMORYISET button.
.
Press the TUNlNG,TlME (v or A) button once to advance the time by
minute. Hold it down to change the
s The hour will not advance even if minutes advance from “59” to
l
The clock begins
The time
dlsptay
will disappear after a few seconds.
To confirm the time display:
Press the CLOCK button.
12.
The time display will appear for about 5 seconds.
Note:
The “CLOCK” or iime will flash at the push of the CLOCK button when the AC power
supply is restored after a power
Readjust the
To readjust the clock:
Perform “Setting the Clock” from the
(for selecting the 24.hour or 12.hour
To change the
1
2
clock
as follows.
Clear
Perform “Setting the Clock” from the beginning.
24-hour
ali
the programmed contents.
or A) button to adjust the hour and then
\I 1,
I
/3;30,:-
counting
or
*
bme in 5mmute Intervats.
from
“0”
seconds. (Seconds are not displayed.)
failure
or
unplugging
the “nit.
begrnning.
If the time display IS flashing, step 3
display)
will be skipped.
Is-hour
display:
qg:’
1%
“00’
hour.
1
I
Remote Control
w Test of the remote control
Face the remote control directly to the
The remote control can be used within the range shown below:
Press the ON/STAND-BY button Does the power turn
music.
rem&
sensor on the
on?
Remote sensor
wt.
Now.
t
O.Zm-6m
(8” - 20’)
you can
enjoy the
-7-
CD-M4000W/CP-M4000
Troubleshooting Chart
Many potential problems can be resoived by the owner without calling a service tech-
nicran.
If something is wrong with this product, check the following before calling your
rn?d SHARP dealer or service centre.
n
General
. The
Symptom
clock IS
not on time.
When a button is pressed, the unit
.
. Are the headphones connected?
l
.
Possible cause
Did
a power failure occur? Reset the
Set
tfx
unit to the power stand-by mode
If the unit
still malfuncbons,
Are the speaker wires disconnected?
Is
the karaoke
or”V-CANCEL”?
modesetto
autho-
reset it.
“L-CH”. “R-CH”
w CD player
. Playback does not start.
. Playback stops m the
. Playback sounds are
Symptom Possible cause
not performed properly.
stopped in the middle of a track.
middle
skipped.
l
Is the disc loaded upside down?
. Does the disc satisfy the standards?
or is
Is the
disc
l
l
or
l
. Has condensation formed inside the unit?
distorted or scratched?
Is the unit located near excessive vibra-
:?e?discverydIm/,
w Tuner
l
Radio makes unusual noise con-
Is the unit placed near the TV or comput-
Is the FM aerial or AM loop aerial placed
properly? Move the AC power lead away
from the aerial if located near.
n
Cassette deck
. Cannot record.
. Cannot record tracks with proper
l Cannot erase
l
n
l
Symptom Possible cause
sound
quality.
Sound skipping.
comoletelv.
Karaoke
Symptom
The vocal
part
disc IS
of a multiplexed
not heard. or “V-CANCEL”?
w Remote control
l
The remote
control
does not
oper-
. Is the
erase-prevent,on
.
f?.
it a normal tape?
a metal or
. Is there any slack?
Are the capstans,
the heads
Do not open the comparfment forcibly.
Walt
until electrfcity resumes.
I
.Is the karaoke inodeset to “L-CH”,
Is the AC power lead of the unit
.
. Is the battery ;olarfty respected?
.
Is the distance or angle incorrect?
. Does the
rem&
tab removed?
(You
00,
remkln
cannot record on
tape.)
p,nch roifers,
engaged with the tape.
Possible cause
control sensor
or heads
“R-0,’
plugged
recewe
Troubleshooting Chart
w If trouble occurs
When this product is subjected to strong external interference (mechanical shock,
excessive
statrc efectncity,
operated incorrectly, it may malfunction.
If such a problem occurs, do the following:
1
Set the unit to the stand-by mode and turn the power on again
2
If the unit IS not restored !n the previous
and then turn the power on.
Note:
if
neither operation above restores the unit, clear all the memory by resetting it
w Clearing all the memory (reset)
1
Press the ON/STAND-BY button to enter the power stand-by mode.
2
Whilst pressing down the +
ON/STAND-BY button until “CLEAR AL” appears.
Caution:
This operation will erase ail data stored in memory including
tuner preset, and CD programme.
n
Before
1
Press the ON/STAND-BY button to
2
Press the CD button.
3
Press the & OPEN/CLOSE button to open the disc tray.
Remove
4
5
all
Press the 6 OPEN/CLOSE button to close the disc tray.
Make sure that “NO DISC” IS dlspiayed
Press
theON/STAND-BY
the AC power
abnormal supply voltage due to lightning, etc.) or if It is
operabon, unplug
button
and the MONSTER-BASS
transporting the unit
t”rn
the power on.
CDs inserted in the unit.
button
lead
from the wall socket.
toenterthestand-by
and plug in the unit,
button,
press the
clock, trmer
settings,
mode, and then unplug
-8-
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. Take off nylon bands or wire holders where they need to
be removed when disassembling the unit. After servicing
the unit, be sure to rearrange the leads where they were
before disassembling.
4. Take sufficient care on static electricity of integrated
circuits and other circuits when servicing.
PROCEDURE FIGURI
1.
Screw .......................
1. Screw .......................
1.
Turn on the power supply,
(Al) x4
(Bl)
open the disc tray, take out
the CD tray cover, and close.
(Note 1)
(Cl) xl
(C2) x3
(C3) x2
(C4)
(Dl)
(D2)
(El) xl
(E2) xl IO-2
(E3)x4IO-2,1O-:
(Fl)
(F2) x2
(F3) x3
(F4) xl
(Gl) xl
(G2) xl
(G3)
(Hl) xl
(H2)
(H3) xl
(Ji)
(Kl)
(Ll)
(Ml) x2
(M2) xl
Rear Panel with
2. Screw
3.
4. Hook..
5.
1. Screw
2.
1. Screw
2. Flat Cable..
3.
1.
2. Socket
3. PWB Holder
4. Flat Wire.
1. Screw..
2. Socket
2.
1. Knob..
2.
3. Flat Cable
1.
2. Screw
1. Screw:.
1. Screw..
1. Hook
2. Cover
.......................
Hook.. .......................
.......................
Socket ......................
.....................
Socket
......................
.......................
Socket ......................
Screw
...............
.......................
......................
.............
..................
.....................
......................
Hook.. .......................
.......................
Screw
.....................
.................
Open the cassette holder.
.....................
.....................
........................
......................
1. Turn fully the lock lever in the.
arrow direction.
2. While holding the lock
the cam gear until the cam gear
rib engages with the clamp lever.
3. Push the slide chassis backward to
engage the claw with the groove
and remove it in the direction
t-
Note
1: How to open the changer manually. (Fig. 9-3)
1.
In this state, turn fully the lock lever in the arrow direction through
the hole on the loading
2. While holding the lock lever, rotate the cam gear
cam gear rib engages with the clamp lever. (Fig.
3. After that, push forward the slide Chaissis.
of the arrow.
1. Screw.
2. Hook
3. Socket
1.
/
2. Hook
chaissis
......................
.........................
......................
Hook . . . . . . . . . . . . . . . . . . . . . . . . .
..____......_............ iQ2j
bottom.
lever,rotate
.................
anticlockwise
10-l)
(Nl)
(Pi)
(P2) x2
(P3)
x8
x2
x10
xl
x7 IO-3
x2
x12
x5
xl
x2
x6
xl
x4
fQ1)
x2
1
x3
until the
9-l
9-l
9-2
9-2
9-2
IO-2
10-3
10-3
jO-4
1 o-4
lo-4
10-4
10-5
9-3
1 O-l
1 O-6
11-1
11-2
CD-M4000W/CP-M4000
Top Cabinet
I
03 x
1Omm
R’ear
Panel
Figure
9-1
CD
Tray
Cover
Transformer
-
Note 2:
1
1. After removing the connector for the optical pickup from the
I
connector, wrap the conductive aluminium foil around the front end
of the connector so as to protect the optical pickup from electrostatic damage.
03xlOmm
Note 3:
1. Be careful not to break the claw of the CD mechanism.
2. When fining back the cam gear assembly, let it lock by front
movement.
-9-
-
Figure 9-2
Figure 9-3
CD--M4000W/CP-M4000
Figure
Clamp Lever
CD Player Unit
(Top View)
Cam Gear Rib
10-l
(E3) x1-y
b
Figure 1 O-2
w
Figure 1 O-4
urntable
(Push
iPush 1
Figure 1 O-3
Figure
(Nl) x
Figure
10-5
3
10-6
CD-M4000W/CP-M4000
Mechanism
2
Super Tweeter
3
Woofer
4
Tweeter
5
Midrange
Figure 1 l-l
Net . . . . . . . . . . . . . . . . . . . . . . .
2. Catching Holder . . . . . (A2) x4
3.
1. Screw
1. Screw
1. Screw
1. Screw
Screw
.....................
.....................
.....................
.....................
.....................
(A3) x4
(Bl) x2
(Cl) x4
(Dl)
x4
(El) x4
Figure 11-2
&moxAss!
Front Panel,
11-5
1 l-5
11-5
11-5
Figure 11-3
Figure 11-4
--ll-
Figure
Sneaker Box Ass’y
l-l-5
CD-M4000W/CP-M4000
REMOVING AND
REINSTALLING .THE MAIN
TAPE MECHANISM SECTION
Perform steps 1 to 7 and 9 of the disassembly method to
remove the tape mechanism.
How to remove the record/playback and erase
heads (TAPE 2) (See Fig.
1. When you remove the screws (Al) x 2
playback head and three-dimensional head of the erasing
head can be removed.
How to remove the playback head (TAPE 1)
(See Fig. 12-2)
1. When you remove the screws
head.
How to remove the pinch roller (TAPE
(See Fig. 12-3)
1.
Carefully bend the pinch roller
arrow
<AZ,
and remove the pinch roller (Cl) x 1
direction of the arrow
Note:
When installing the pinch roller, pay attention to the spring
mounting position.
cB>.
12-I)
PCS.,
the recording/
(Bi)
x 2
PCS.,
the playback
paw1
in the direction of the
l/2)
PC.,
in the
Erase Head
ti2
x
6mm
Figure 12-l
TART;S
TAPE 2
1
TAPE 1
/
How to remove the belt (TAPE 2)
(See Fig. 12-4)
1. Remove the main belt
2. Remove the
FF/REW
How to remove the belt (TAPE
(Dl)
x 1
PC.,
from the motor side
belt (D2) x 1 pc.
1)
(See Fig. 12-4)
1.
Remove the main belt (El) x 1
2. Remove the
FF/REW
belt (E2) x 1 pc.
PC.,
from the motor side.
How to remove the motor (See Fig. 12-5)
1.
Remove the screws
(Fl)
x 2
Tape
PCS.,
to remove the
motor.
(Bl) x
02x9m
1
Figure
12-2
h
Pinch
KY
Figure 12-3
/z---l
T
n \
Main Belt
/
Figure 12-5
Flvwheel
v
-
-12-
Figure 12-4
Flywheel
Ass’y
1%
FFlREW
Roller
CD-M4000W/CP-M4000
CD MECHANISM SECTION
13, 14
Perform
method to remove the CD mechanism.
steps1,2,3,12,
and15of
How to remove the CD loading motor
(See Fig.
1.
Bend the hooks (Al) x 5
motor.
2. Remove the drive belt (A2) x 1 pc.
13-1)
PCS.,
to remove the CD loading
How to remove the pickup (See Fig. 13-2)
1.
Remove the stop washer
(B2) x 1 pc.
2.
Remove the screws (B3) x2
3. Remove the pickup.
Note
After removing the connector for the optical pickup from the
connector wrap the conductive aluminium foil around the front
end of connector so as to protect the optical pickup from
electrostatic damage.
(Bl)
x 1
PCS.,
to remove the shaft (84).
the disassembly
PC.,
to remove the gear
CD Loading Motor
Figure
13-1
MECHANISM SECTION
l
Driving Force Check
Torque Meter
Play: TW-2111
l
Torque Check
Specified Value
Tape 1: Over 80
Tape 2: Over 80
ADJUSTMENT
g
g
(B4) x
l
Tape Speed
Normal
speed
1
Gear
(B2) x
Figure 13-2
Test Tape
MTT-111
Adjusting Specified
Point
Variable
Resistor in
motor. (Load
/
TAPE MECHANISM
1
3,000 k 30
Value
Hz Speaker
1
Instrument
Connection
terminal
resistance:
6
ohms)
, ,
i
-13
Figure 13-3
CD-M4000W/CP-M4000
TUNER SECTION
fL:
Low-range frequency
fH:
High-range frequency
l
AM IF/RF
Signal generator: 400 Hz,
Test Stage Frequency Frequency
AM IF 450
AM Band
Coverage
AM Tracking 990
*l
. Input: Antenna
*2.
Input: Antenna
FM ANTENNA
kHz
-
kHz
so301
TERMINAL
30%,
AM modulated
Display
1,602
kHz T351
531
kHz
990
kHz
Output: TP302
Output: TP301
CNP301
AM LOOP
ANTENNA
jl
[ IC301 I I
Setting/ Instrument
Adjusting Connection
Parts
‘1
l
(fL):
T306
1.1 F
(fL):
T303
1
2
0.i v
*l
MAIN PWB
. FM RF
Signal generator: 1
Test Stage Frequency Frequency
FM Band
Coverage 1.3 V i 50
FM RF
*I.
Input: Antenna
*2.
Input: Antenna
l
FMIF
Signal generator:
ITest
j
,
\
*I.
Input: Antenna
-
98.00 MHz 98.00 MHz L312
(1
Staae / Freauencv /
,
kHz,
40
kHz
Display
87.50 MHz T301
O-30 dB)
Output: TP301
Output: Speaker terminal
10.7
MHz,
FN
- 1 D&play-
Freauenc
^‘;”
Output: TP301
dev., FM modulated
Setting/
Adjusting
Point
(fL):
I modulated
Instrument
Connection
‘1
mV
l
2
L+ R357
Figure
14-1
ADJUSTMENT POINTS
CD SECTION
l
Adjustment
Since this CD system incorporates the following automatic
adjustment functions, readjustment is not needed when
replacing the pickup. Therefore, different
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
*
Focus offset adjustment
*
Tracking offset adjustment
(2) Tracking balance adjustment (waveform drawing
Fig.14-2 EFBL)
(3) Gain adjustment (The gain is compensated inside the
so that the loop gain at the gain crossover frequency will
be 0
dB.)
*
Focus gain adjustment
’
Tracking gain adjustment
IC.)
PWBs
and pickups
IC
14-
CD-M4000W/CP-M4000
TEST
l
Any one of test mode can be set by pressing several keys as follows.
<X-BASS> + <CD> +
M,ODE
Setting the test mode
<POWER> TEST:CD
operation test
Function:-CD test mode.
c~~77,
<<PLAY>> key input.
-Enter test mode.
OPEN/CLOSE operation is using manual.
ccc+>
buttons’ make pick’s slide possible.
IL isn’t done
’
<<MEMORY>>
key input
Adjustment result
automatically will
display as below
for each 2
a) “FOF-XXXX”
b) “TOF-XXXX”
c) “TBA-XXXX”
d) “TGA-XXXX”
f) “FGA-XxXx”
g)
“RFL-XXXX”
explanation:
a) Focus off set
b)
Tracking off set
c)
Tracking balance =“TBA-XXXX”
d) Tracking Gain
f) Focus Gain
g)
RF level shift
set :
=“FOF XXXX”
=“TOF;XXXX”
=“TGA-XXXX”
=“FGA-XXXX”
=“RFL-XXXX”
Do TOC IL. Do normal play
When these following key is input
into PLAY key, track number can
be appoint directly
<<@
177
key: Track 4
<<@2>7 key: Track 9
<<@3>> key: Track 15
I
I
Laser ON.
+
<<MEMORY>> key input.
Tracking OFF play at that
specific point.
<<MEMORY>> key input.
<<MEMORY>> key input.
1
Adjustment result
display as below for each 2
a)
“FOF-XxXx”
b) “TOF-XXXX”
c) “TBA-XXXX”
d)
“TGA-XxXx”
f) “FGA-XXXX”
g)
“RFL-XXXX”
I
t
automaticallywill
3
/ <<STOP:
key input.
6
set :
/
VOL - Last memory
BAL - CENTER
P.GEQ -
X-BASS - OFF
To cancel : Power OFF
FLAT
-15-
(STOP)
Sliding the PICKUP with
<<DD>>, <cc+>
must only be in STOP mode.
button
CDh/l4000W/CP-M4000
Standard Specification of Stereo System Error Message Display Contents
Error Contents Display
Output while Device Protection Operation ‘PROTECT
TAPE Mechanism Error
CDIVCD
TUN
I
Pickup Mechanism Error
CD Changer Mechanism Error ‘ER-CD**’
Tray Error
Micon
Communication Error
Focus Not Match
IL Time Over
PLL Unlock
‘E
R-TA**’
‘ER-CD**’
‘ER-CD**’
‘ER-CD**’
‘NO DISC’
‘NOT READ’
‘ER-TU**’
Notes
00: While in Protect Circuit Operate
01: Over Current Detection
02: DC Detection
03:
00: Tape Mechanism Error
01: Initial Error
02:
03:
00: Pickup Mechanism Error
01: PU-IN SW Detection NG
02:
03:
10: Changer Error
11: Initial Error
12:
13:
20: Tray Error
21:
22:
23:
30: System-VCD
31: System-CD Servo
00: TUN Error
01: PLL Unlock
02:
03:
.~
-16-
TO DISPLAY SECTION
CD-M4000W/CP-M4000
CONSTANT
VOLTAGE
61 CE
62 CL
63 DI
64 DO
65 wmo
6 VRES
6 DRF
ICI
LC78645E
CD SERVO
-
c
Figure 17 BLOCK DIAGRAM
-17-
(i/3)
SW4
PICKUF
IN
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