Page 1
DIGITAL
S9156CDM4000W
COMPONENT
CD-M4000W
In the interests of user-safety the set should be restored to its
original condition and only parts identical to those specified be
used.
Page
SAFETY
PRECAUTION
FOR SERVICE
MANUAL
...........................................................................................................
2
VOLTAGE
SELECTION
.....................................................................................................................................................
2
AC
POWER
SUPPLY
CORD AND
AC PLUG
ADAPTOR .................................................................................................
3
SPECIFICATIONS
..........
.
.................................................................................................................................................
3
NAMES
OF PARTS
...........................................................................................................................................................
4
OPERATION
MANUAL..
......
...
..
...................................................................................................................................
6
DISASSEMBLY..
...................
.............................................................................................................................................
REMOVING
AND REINSTALLING THE MAIN
PARTS..
.................................................................................................
ADJUSTMENT
.................................................................................................................................................................
13
BLOCK
DIAGRAM
...........................................................................................................................................................
17
SCHEMATIC DIAGRAM/WIRING SIDE OF P.W.BOARD..
...........................................................................................
VOLTAGE
............
............................................................................................................................................................
38
NOTES
ON SCHEMATIC
DIAGRAM
..............................................................................................................................
TYPES
OF TRANSISTOR AND LED................................................................................................................................
39
WAVEFORMS
OF
CD
CIRCUIT..
....................................................................................................................................
40
.
.................................................................................................................................................
41
FUNCTION
TABLE OF
.................................................................
............................................................................
45
FL
DISPLAY..
....................................................................................................................................................................
53
REPLACEMENT PARTS LIST/EXPLODED VIEW
This document has been published to be used
for after sales service only.
The contents are subject to change without notice.
Page 2
WARNINGS
THE AEL (ACCESSIBLE EMISSION LEVEL) OF THE LASER POWER OUTPUT IS LESS THAN CLASS
BUT THE LASER
COMPONENT IS CAPABLE OF EMITTING RADIATION EXCEEDING THE LIMIT FOR CLASS 1. THEREFORE IT IS
FOLLOWING PRECAUTIONS ARE OBSERVED DURING SERVICING TO PROTECT YOUR EYES
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.
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.
SPECIFIED HEREIN MAY RESULT IN HAZARDOUS RADIATION EXPOSURE.
Laser Diode Properties
Material:
Wavelength: 780 nm
Emission Duration: continuous
Laser Output: max. 0.6 mW
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 (1 127
220
or 230 V-240
AC).
Page 3
a
I
FOR A COMPLETE DESCRIPTION OF THE OPERATION OF THIS UNIT, PLEASE REFER
TO THE OPERATION MANUAL.
n
Amplifier
260 W) (10
T.H.D.)
150
(10 % T.H.D.)
n
CD player
n
Tuner
Frequency range
MHz
1,602 kHz
Cassette deck
Frequency response
50 14,000
55 dB (TAPE
(TAPE
Wow and flutter
cm
cm
Midrange
25
Woofer
Maximum input power
300
(Total)
Rated input power
(Total)
Impedance
6
Dimensions
422
(16-518”)
(13”)
(12-1116”)
Weight
8.5 kg (18.7
Specifications for this model are subject to change without
prior notice.
Page 4
n
Disc Tray
Button
4. Tape 2 Cassette Compartment
5. Tape
Cassette Compartment
6. Equalizer Mode Select Button
7. Volume Control
8. Monster Bass/Demo Mode Button (with Indicator)
2
9. Disc Tray Open/Close Button
3
.Disc Skip Button
2 Reverse Play Button (with Indicator)
Button
2) Button
Button
Button
21 .Headphone Socket
Tape 2 Forward Play Button (with Indicator)
Tuner Preset Up Button
and Time Down Button
Button
Tuner Preset Down Button
31 .Microphone Socket
n
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
.Memory Indicator
Play or Tape 2 Forward Play Indicator
Indicator
Recording Indicator
AnalyserNolume Level Indicator
26 27 28 293031
12
1516
2345
Page 5
n
FM 75 Ohms Aerial Terminal
2. FM Aerial Earth Terminal
3. AM Loop Aerial Socket
4. Span Selector Switch
Sockets
6. Speaker Terminals
7. AC Power Lead
8. AC Voltage Selector
n
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
.Tuner (Band) Button
Button
A2
3
14
15
16
6
18
7
19
8
20
9
21
22
12
Random Button
Memory Button
Pause Button
Tuner Preset Up Button
Play or Repeat, Tape 1 Play,
Tape 2 Forward Play Button
(1
2) Button
Up and Down-Buttons
13
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.
Page 6
n
1.
Tweeter
2.
Super Tweeter
3.
Midrange
4.
Woofer
5. Bass Reflex
6.
Speaker Terminals
1
5
2
4
6
3
System Connections
n
voltage selector
Check the setting of the
AC
located an the rear panel before plug-
ging the
into a wall so&et. If necessary, adjust the selector to correspond to the
AC power voltage used
your area.
Turn the selector with a screwdriver until the appropriate voltage number appears in the window (110 V, 127
220
or 230 V
240
AC).
q
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
will not be in use for a pro-
longed period of time.
AC Plug Adaptor
In areas
countries) where a wall socket as shown
illustration
is used, connect
the unit
the AC plug adaptor
with the
as illustrated The AC plug
adaptor
not included
areas where the wall socket and AC power plug can be
n
Setting
The International Telecommuntcatlon
(ITU) has establlshed that member coun-
should maintain either a 100 a
kHz interval between broadcasting fre-
of FM statons and
9
for AM station. The
shows
the
zones (regons
and
and the
(region 2)
Before “sing the
set the SPAN SELECTOR swtch (on the rear panel) to the
Of your area
To change the tuning zone:
Press the ON/STAN D-B,’
to enter the stand-by mode.
2
Set the SPAN SELECTOR switch (on the rear panel) as follows.
. For FM
5019
. For 100
FM
AM)
3 Whilst down the
button and the MONSTER-BASS button. press the ON,
STAND-BY
until “CLEAR AL” appears.
Caution:
will erase all data stored
Including clock,
settings,
tuner preset, and CD
Page 7
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.
button.
Press the TUNING/TIME
or A) button to select
or
hour display and then press the MEMORY/SET button.
The
will appear.
“AM
The 12.hour display will appear.
(AM 12’00 -PM
“AM
The
will appear.
(AM
PM
Note that this can only be set when the unit
first installed or it has been reset.
Press the
or A) button to adjust the hour and then
press the MEMORY/SET button.
.
Press the TUNlNG,TlME
or
button once
advance the time by
Hold it down to advance contnuousiy.
Press the TUNING/TIME
or
button to adjust the minutes and
then press the MEMORYISET button.
/3;30,:-
.
Press the TUNlNG,TlME
button once to advance the time by
minute. Hold it down to change the
I
l
The clock begins
from
seconds. (Seconds are not displayed.)
The time
will disappear after a few seconds.
To confirm the time display:
Press the CLOCK button.
The time display will appear for about
seconds.
Note:
The “CLOCK”
iime will flash at the push of the CLOCK button when the AC power
supply is restored after a power
or
the “nit.
Readjust the
as follows.
To readjust the clock:
Perform “Setting the Clock” from the
If the time display
flashing, step 3
(for selecting the 24.hour or 12.hour
will be skipped.
To change the
or
display:
1
Clear
the programmed contents.
2
Perform “Setting the Clock” from the beginning.
Remote Control
Face the remote control directly
the
sensor on the
The remote control can be used within the range shown below:
Press the ON/STAND-BY button Does the power turn
Now. enjoy the
music.
Remote sensor
Page 8
Troubleshooting Chart
Many potential problems can be resoived by the owner without calling a service tech-
n
If something is wrong with this product, check the following before calling your
n
Symptom
Possible cause
. The not on time.
.
a power failure occur? Reset the
. Cannot record.
. Is the
tab removed?
. Cannot record tracks with proper
.
it a normal tape?
cannot record on
sound
l Cannot erase
a metal tape.)
l
Sound skipping.
.
there any slack?
When a button is pressed, the unit
Set
unit to the power stand-by mode
If the unit
reset it.
Are the capstans,
or heads
. Are the headphones connected?
l
Are the speaker wires disconnected?
the heads
engaged with the tape.
Do not open the comparfment forcibly.
until electrfcity resumes.
.
the karaoke
“L-CH”. “R-CH”
n
l
The vocal
of a multiplexed
.
the karaoke inodeset to “L-CH”,
not heard. or “V-CANCEL”?
l
Is the disc loaded upside down?
. Playback stops
the
or is
. Does the disc satisfy the standards?
not performed properly.
l
Is the
distorted or scratched?
. Playback sounds are
or
l
Is the unit located near excessive vibra-
l
The remote
does not
.
Is the AC power lead of the unit
stopped
the middle of a track.
l
:?e?discverydIm/,
. Is the battery ;olarfty respected?
. Has condensation formed inside the unit?
.
Is the distance or angle incorrect?
. Does the
control sensor
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.
Troubleshooting Chart
When this product is subjected to strong external interference (mechanical shock,
excessive
abnormal supply voltage due to lightning, etc.) or if
is
operated incorrectly, it may malfunction.
1
Set the unit to the stand-by mode and turn the power on again
2
If the unit
not restored
the previous
and plug in the unit,
and then turn the power on.
neither operation above restores the unit, clear all the memory by resetting it
Press the ON/STAND-BY button to enter the power stand-by mode.
2
Whilst pressing down the
and the MONSTER-BASS
press the
ON/STAND-BY button until “CLEAR AL” appears.
This operation will erase ail data stored in memory including
settings,
tuner preset, and CD programme.
n
transporting the unit
t”rn
3
Press the & OPEN/CLOSE button to open the disc tray.
Remove
CDs inserted
the unit.
4
Press the
OPEN/CLOSE button to close the disc tray.
5
Make sure that “NO DISC”
dlspiayed
Press
button
mode, and then unplug
the AC power
from the wall socket.
Page 9
Caution on Disassembly
Follow the below-mentioned notes when disassembling
the unit and reassembling it, to keep it safe and ensure
excellent performance:
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.
Rear Panel with
1.
Turn on the power supply,
9-2
open the disc tray, take out
the CD tray cover, and close.
(Note 1)
2. Screw
.......................
(Cl) xl
3.
Hook.. .......................
(C2) x3
4. Hook..
.......................
(C3) x2
5.
Socket ......................
(C4)
x2
1. Screw
.....................
x10
9-2
2.
Socket
......................
(D2)
xl
1. Screw
.......................
(El) xl
9-2
2. Flat Cable..
...............
(E2) xl IO-2
3.
Socket ......................
(E3)
x4
Screw
.......................
x7 IO-3
2. Socket
......................
(F2) x2
3. PWB Holder
.............
(F3) x3
4. Flat Wire.
..................
(F4) xl
1. Screw..
.....................
2. Socket
......................
(G2) xl
2.
Hook.. .......................
(G3)
x2
1. Knob..
.......................
2.
Screw
.....................
(H2)
x12
3. Flat Cable
.................
(H3) xl
Open the cassette holder.
1 o-4
2. Screw
x5
1. Screw:.
.....................
xl
1. Screw..
.....................
x2
1. Hook
........................
(Ml) x2
2. Cover
......................
(M2) xl
1. Turn fully the lock lever in the.
9-3
arrow direction.
2. While holding the lock
1 O-l
the cam gear until the cam gear
rib engages with the clamp lever.
3. Push the slide chassis backward to
1 O-6
engage the claw with the groove
and remove it in the direction
of the arrow.
.................
x6
1. Screw.
......................
xl
2. Hook
.........................
(P2) x2
3. Socket
......................
x4
1.
Hook . . . . . . . . . . . . . . . . . . . . . . . . .
x2
11-2
2. Hook
x3
Note
1: How to open the changer manually. (Fig. 9-3)
In this state, turn fully the lock lever in the arrow direction through
the hole on the loading
bottom.
2. While holding the lock lever, rotate the cam gear
until the
cam gear rib engages with the clamp lever. (Fig.
3. After that, push forward the slide Chaissis.
PROCEDURE FIGURI
Screw .......................
(Al) x4
1. Screw .......................
x8
Top Cabinet
03
Panel
Figure
CD
Cover
Transformer
Figure 9-2
Figure 9-3
Note 2:
1. After removing the connector for the optical pickup from the
connector, wrap the conductive aluminium foil around the front end
of the connector so as to protect the optical pickup from electrostatic damage.
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.
Page 10
Clamp Lever
CD Player Unit
(Top View)
Cam Gear Rib
Figure
Figure
O-2
(Push
Figure
O-3
Figure 1 O-4
Figure
3
Figure
Page 11
Figure 1 l-l
Net . . . . . . . . . . . . . . . . . . . . . . .
2. Catching Holder . . . . . (A2) x4
3
Woofer
1. Screw
.....................
(Cl) x4
1 l-5
4
Tweeter
1. Screw
.....................
x4
11-5
5
Midrange
1. Screw
.....................
(El) x4
11-5
Mechanism
Figure 11-2
Front Panel,
3.
Screw
.....................
(A3) x4
2
Super Tweeter
1. Screw
.....................
(Bl) x2
11-5
Figure 11-4
Figure 11-3
Figure
Page 12
TAPE 2
TAPE MECHANISM SECTION
Perform steps
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
the recording/
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
x 2
the playback
head.
Erase Head
How to remove the pinch roller (TAPE
(See Fig. 12-3)
Carefully bend the pinch roller
in the direction of the
arrow
and remove the pinch roller (Cl) x in the
direction of the arrow
Note:
When installing the pinch roller, pay attention to the spring
mounting position.
How to remove the belt (TAPE 2)
(See Fig. 12-4)
1. Remove the main belt
x 1
from the motor side
2. Remove the
belt (D2) x 1 pc.
How to remove the belt (TAPE
(See Fig. 12-4)
Remove the main belt (El) x from the motor side.
2. Remove the
belt (E2) x
pc.
How to remove the motor (See Fig. 12-5)
Remove the screws
x 2
to remove the
Tape
motor.
x
Figure 12-l
TAPE 1
1
Figure
Pinch
Figure 12-3
Main Belt
Flywheel
Roller
Figure 12-4
Figure 12-5
Page 13
CD MECHANISM SECTION
Perform
steps
2,3,12,
13, 14
and15of
the disassembly
method to remove the CD mechanism.
How to remove the CD loading motor
(See Fig.
Bend the hooks (Al) x 5
to remove the CD loading
motor.
2. Remove the drive belt (A2) x
pc.
How to remove the pickup (See Fig. 13-2)
Remove the stop washer
x 1
to remove the gear
(B2) x 1 pc.
2.
Remove the screws (B3) x2
to remove the shaft (84).
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.
CD Loading Motor
Figure
(B4) x
Gear
(B2)
Figure 13-2
MECHANISM SECTION
l
Tape Speed
l
Driving Force Check
Torque Meter
Specified Value
Tape 1: Over
Tape 2: Over
l
Torque Check
Test Tape
Adjusting Specified
Instrument
Point
Value
Connection
Normal
Variable
3,000
30
Hz Speaker
speed
Resistor in
terminal
motor. (Load
resistance:
6
ohms)
TAPE MECHANISM
, ,
Figure 13-3
-13
Page 14
TUNER SECTION
Low-range frequency
High-range frequency
l
AM IF/RF
Signal generator: 400 Hz,
AM modulated
Test Stage Frequency Frequency
Setting/ Instrument
Display
Adjusting Connection
Parts
AM IF 450
1,602
‘1
AM Band
531
T306
l
2
Coverage
1.1
AM Tracking 990
990
T303
. Input: Antenna
Output: TP302
Input: Antenna
Output: TP301
CNP301
FM ANTENNA
AM LOOP
TERMINAL
ANTENNA
MAIN PWB
Figure
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
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.
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
(3) Gain adjustment (The gain is compensated inside the
so that the loop gain at the gain crossover frequency will
be 0
Focus gain adjustment
Tracking gain adjustment
. FM RF
Signal generator:
40
dev., FM modulated
Test Stage Frequency Frequency
Instrument
Display
Adjusting
Connection
Point
FM Band
‘1
Coverage 1.3 50
FM RF
l
2
(1
Input: Antenna
Output: TP301
Input: Antenna
Output: Speaker terminal
l
Signal generator:
MHz,
Staae
Freauencv
I modulated
Input: Antenna
Output: TP301
Page 15
TEST
l
Setting the test mode
Any one of test mode can be set by pressing several keys as follows.
<CD>
operation test
Function:-CD test mode.
-Enter test mode.
IL isn’t done
OPEN/CLOSE operation is using manual.
buttons’ make pick’s slide possible.
Do TOC IL. Do normal play
When these following key is input
into PLAY key, track number can
<<MEMORY>>
key input
be appoint directly
Adjustment result
automatically will
display as below
for each 2
a) “FOF-XXXX”
b) “TOF-XXXX”
c) “TBA-XXXX”
d) “TGA-XXXX”
“RFL-XXXX”
177
key: Track 4
explanation:
a) Focus off set
I
Tracking off set
Tracking balance =“TBA-XXXX”
d) Tracking Gain
f) Focus Gain
RF level shift
VOL
Last memory
BAL
CENTER
FLAT
X-BASS
OFF
To cancel
Power OFF
Laser ON.
<<MEMORY>> key input.
Tracking OFF play at that
specific point.
<<MEMORY>> key input.
I
Adjustment result
display as below for each 2
a)
b) “TOF-XXXX”
c) “TBA-XXXX”
d)
f) “FGA-XXXX”
“RFL-XXXX”
key input.
(STOP)
Sliding the PICKUP with
button
must only be in STOP mode.
Page 16
Error Contents Display
Output while Device Protection Operation ‘PROTECT
TAPE Mechanism Error
R-TA**’
Pickup Mechanism Error
‘ER-CD**’
CD Changer Mechanism Error ‘ER-CD**’
Tray Error
‘ER-CD**’
Communication Error
‘ER-CD**’
Focus Not Match
‘NO DISC’
IL Time Over
‘NOT READ’
TUN
PLL Unlock
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:
Page 17
ICI
CD SERVO
Figure 17 BLOCK DIAGRAM
Page 18
AMP.
Figure 18 BLOCK DIAGRAM
Page 19
FL701
FL DISPLAY
I I
SYSTEM MICROCOMPUTER
RELAY
TRANSFORMER
250V
27/220/
Figure 19 BLOCK DIAGRAM
Page 20
2
3
4
5
6
7
6
Cl
I
I
CD
I
LASER
DRIVER
l
NOTES ON SCHEMATIC DIAGRAM can be found on page 39.
2
3
4
5
6
Figure 20 SCHEMATIC DIAGRAM
Page 21
l
The numbers
to
are waveform numbers shown in page
Figure 21 SCHEMATIC DIAGRAM @/IO)
Page 22
PROCESSOR
--
l
NOTES ON SCHEMATIC DIAGRAM can be found on page 39.
Figure 22 SCHEMATIC DIAGRAM
0)
22
Page 23
FM SIGNAL
PLAYBACK SIGNAL
RECORD SIGNAL
CD SIGNAL
VIDEO SIGNAL
Figure 23 SCHEMATIC DIAGRAM
Page 24
PWB-Bl
l
NOTES ON SCHEMATIC DIAGRAM can be found on page 39.
Figure 24 SCHEMATIC DIAGRAM
0)
Page 25
>K
I
I
Figure 25 SCHEMATIC DIAGRAM
0)
25
Page 26
POWER AMP
POWER PWB-Di
l
NOTES ON SCHEMATIC DIAGRAM can be found on page 39.
1
I
2
I
3
I
4
5
I
6
Figure 26 SCHEMATIC DIAGRAM
26
Page 27
1
I
I
I
--------------I
7
9
11
12
Figure 27 SCHEMATIC DIAGRAM
Page 28
A
3
1
0.0047
0.0047
FM FRONT END
FM SIGNAL
AM SIGNAL
I
I
8328
FM
IF
IF
l
NOTES ON SCHEMATIC DIAGRAM can be found on page 39.
1
2
3
4
5
I
6
Figure 28 SCHEMATIC DIAGRAM
0)
28
Page 29
MIC SIGNAL
I
l
NOTES ON SCHEMATIC DIAGRAM can be found on page 39.
Figure 29 SCHEMATIC DIAGRAM
6-A
Figure
29
WIRING
SIDE OF
Page 30
TO CD SERVO PWB
TO
PWB
P36 5-A
P29 12-G
2345678910
75 OHM!
FM ANTENNA
TERMINAL
GND
AM LOOP
ANTENNA
SPAN
SELECTOR
9 kHdf
--
10
100
l
--
2
3
4
5 6
30
Page 31
TO DISPLAY PWB
P33
40
3
102
,
2
RECORD/PLAYBACK
ERASE HEAD
P37
FROM TAPE 1
PLAYBACK HEAD
l
.
C629
l
TO AMP PWB
12-E
a 9
10
11
12
I
Figure 31 WIRING SIDE OF
Page 32
DISPLAY
MONSTER BASS PWB-B3
TAPE
Page 33
MAIN
9-A
I
LED722
I
.
.
.
l
l
r-7
r--i
‘SW723
r--i
I
1R
-
-1
1
33
Page 34
VIOLET
TRANSFORMER
V.50160
HEADPHONES
I
I
Page 35
I
.
I
7
9
Figure 35 WIRING SIDE OF
11
12
Page 36
CD SERVO
P32 1-B
FROM DISPLAY PWB
4-A
FROM MAIN PWB
PICKUP
l
The numbers
to
are waveform numbers shown in page 40
1
2
I
3 4
5
6
36
Page 37
TAPE MECHANISM
SOLENOID
PLAYBACK HEAD
12-F
TO MAIN PWB
CD LOADING MOTOR
SOLENOID
HEAD
12-D
FROM MAIN PWB
7 a
9
11
12
I
Page 38
Page 39
l
Resistor:
To differentiate the units of resistors, such symbol as
and
are used: the symbol
means 1000 ohm and the symbol
means 1000 kohm and the resistor without any symbol is
ohm-type resistor. Besides, the one with “Fusible” is a fuse
. Capacitor:
To indicate the unit of capacitor, a symbol
is used: this
symbol
means pica-farad and the unit of the capacitor
without such a symbol is microfarad. As to electrolytic
capacitor, the expression “capacitance/withstand voltage”
is used.
(CH), (TH),
(UJ): Temperature compensation
(ML): Mylar type
(P.P.): Polypropylene type
l
Schematic diagram and Wiring Side of
for this
model are subject to change for improvement without prior
notice.
The indicated voltage in each section is the one measured
by Digital Multimeter between such a section and the chassis with no signal given.
1. In the tuner section,
indicates AM
indicates FM stereo
2. In the main section, a tape is being played back.
3. In the deck section, a tape is being played back.
indicates the record state.
4. In the power section, a tape is being played back.
5. In the CD section, the CD is stopped.
l
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.
SW734
TUNER
SW801
VOLTAGE SELECTOR
EC
07
KTC3199 GR 2SA1015 GR
OFTRANSISTOR
KTC2026
FRONT
VIEW
I
I
RT7
31
39
Page 40
@I
Page 41
When the CD does not function
When the CD section does not operate when the objective lens of the optical pickup is dirty, this section may not operate. Clean
the objective lens, and check the playback operation. When this section does not operate even after the above step is taken, check
the following items.
Remove the cabinet and follow the trouble shooting instructions..
“Track skipping and/or no TOC (Table Of Contents) may be caused by build up of dust other foreign matter on the laser pickup
lens. Before attempting any adjustment make certain that the lens is clean. If not, clean it as mentioned below.”
Turn off the power, and wipe the lens softly using a cleaning paper moistened with commercially available cleaning solution so
as not to damage it. Be careful not to touch the lens with bare hands.
Dust gradually accumulates on the objective lens during use, and it may degrade performance. To avoid this problem, use a
cleaning disc designed for CD optical pickup lenses..
Parts code
1.
CD optical pickup Lens cleaner disc
Using the brush in the cleaner cap, apply 1 or 2 drops of
cleaning fluid to the
brush on the CD cleaner disc which has the mark next to it.
2. Place the CD cleaner disc onto the CD disc tray with the brush side down,then
press the play button.
Cleaning fluid
3. You will hear music for about 20 seconds and the CD player will automatically stop.
If it continuous to turn, press the stop button.
l
The CD lens cleaner should be effective for
operations, however if the
brushes become worn out earlier then please the cleaner disc.
If the CD cleaner brushes become very wet then wipe off any excess fluid with a soft
cloth.
Do not drink the cleaner fluid or allow it to come in contact with the eyes. In the
event of this happening then drink and/or rinse with clean water and seek medical
advice.
The CD cleaner disc must not be used on car CD players or on computer CD-ROM
drives.
Cleaner disc
l
All rights reserved. Unauthorized duplicating, broadcasting and renting this product
is prohibited by law.
When a CD cannot be played
1.
is displayed.
(1) Check the power to
the presence of the clock signal (33.8688 MHz) and the status of the RESET terminal
(pin 66 on ICI).
(2) Does the pickup move to the PICKUP-IN Switch (SW4) position?
If (1) and (2) are OK, check the system microcomputer (especially the communication line with the DSP).
2. Pressing the CD operation key is accepted, but playback does not occur.
(1) Focus-HF system check
(2) Tracking system check
(3) Spin system check
(4) PLL system check
(5) Others
Page 42
system.check.
Although a CD is inserted and the cover is closed, “NO
DISC” is displayed.
Press the OPEN/CLOSE switch
without inserting a
disc, and try starting the playback operation.
Does the pickup move to the PICKUP-IN Switch (SW4)
oosition
Sled motor
Figure
2. Does the focus (lens) move up and down
(Waveform drawing Figure 42-l)
No
Check the focus peripheral circuit.
No
3. Is the laser lit
Check the laser diode driver
peripheral circuit.
4. Is the turntable rotating
When a disc is loaded, start playback operation.
No
Spindle motor (Ml).
1. Is focus servo activated
(Waveform drawing Figure 42-2)
No
Pins 7-12, 79 and 80 on
Check the laser diode driver
peripheral circuit.
Yes
No
Is the disc rotating
No
Check the spin system.
If the disc is spinning and a HF waveform is generated,
DRF will go H.
3. Is the HF waveform normal
(Waveform drawing
the level is not normal.
Figure 42-3)
Figure 42-2
Figure 42-3
Page 43
the waveform shown in Figure
appears and soon after
NO DISC appears
Yes
The tracking servo is not activated.
Check the peripheral circuits at pins 14, 15 and 20 on
and
A/B.
1
Yes
A normal jump operation cannot be completed or the beginning of
the track cannot be found.
No
Check the around pin 20 on
Data cannot be read. Check the VCO-PLL system.
Figure
Press the OPEN/CLOSE switch without inserting a disc, and
then try starting the play operation.
1. The turntable rotates a little
(Waveform drawing -- The spin driver circuit is OK.
Figure 43-2)
Yes
No
--
2. The turntable doesn’t rotate.
Check around pin 22 on ICI, pins 15 and 16 on
and
Figure 43-2
43
Page 44
When a disc is loaded, start play operation.
I
The HF waveform is normal, but the TOC data cannot be
read.
Check the PDO waveform. (Figure 44-l)
Check around pins 73-78 on
Figure
The HF waveform is normal and the time is displayed
normally, but no sound is produced. Or the sound
has dropouts.
No
There are too many error flags on a damaged disc which
makes error correction impossible.
1. When playing at normal speed.
Check the peripheral circuit at pin 39 (DOUT) on
and
the waveform (Figure 44-2).
Check again using a known good disc.
If OK. Check the unit.
Page 45
VHiLC78645E-1:
CD
Servo (LC78645E)
For slice level
8
FIN2 Input
signal input terminal.
9
Input
signal input terminal.
TIN2
Input
signal input terminal.
11
output
VREF voltage output terminal.
12
Input
Reference supply setting terminal.
13’
FE
output
FE signal monitor terminal.
14
TEC
output
TE
output
16
RFMON
output
17
18
ADAVDD Input
19
ADAVSS
LPF capacitor connection terminal for TE signal.
TE signal monitor terminal.
RF internal signal monitor terminal.
Capacitor connection terminal for jitter detection.
Power terminal for servo A/D, D/A.
Earth terminal for serve A/D. D/A. To be connected to 0
TDO
ADAVDD/2
Outout terminal for trackina control. D/A output.
I
FDO
Output
ADAVDD/2
I
Output terminal for focus control. D/A output.
I
I
SPDO
Output
ADAVDD/2
Output terminal for spindle control. D/A output.
23
SLDO
Output
ADAVDD/2
Output terminal for sled control. D/A output.
GPDAC
output
ADAVDD/2
Servo D/A general-purpose output terminal.
25
26
CONT4
Input/Output Input Mode General-purpose I/O terminal 4.
Controlled by commands from the
CONT.5
Input/Output Input Mode General-purpose I/O terminal 5.
microcomputer. When not used, set
them as input terminals and connect
Input/Output Input Mode General-purpose I/O terminal 6 or
to 0
or set them as output
terminals and leave open.
I
not used, connect to
setting termrnal. Terminal functions are set by commands. When
DEFECT
output
Defect terminal.
Output
rough servo,
phase servo.
Auto switching monitor output terminal for rough servo phase control.
FSEQ
output
32’
Sync signal detection output terminal.
The status changes to
when the sync signal detected in EFM and the
sync signal of internal generation are identified.
Internal sianal monitor terminal
37
vss
38
VDD
DOUT
40
TEST
output
Internal signal monitor terminal 2.
output
Internal signal monitor terminal 3.
output
Internal signal monitor terminal 4.
output
Internal signal monitor terminal
Digital system earth terminal. To be connected to 0 V.
Input
Digital system power terminal.
output
Digital OUT output terminal. (EIAJ format)
41
LVDD
Input
42
LCHO
output
43
LVDDM
Left channel
Power supply for Left channel.
converter
Left channel output.
GND for Left channel. Must be connected to 0
In this unit, the terminal with asterisk mark
is (open) terminal which is not connected to the outside.
45
Page 46
VHiLC78645E-1: CD Servo (LC78645E)
output terminal 7. set it as the input terminal and open
LDD
Output
In this unit, the terminal with asterisk mark
is (open) terminal which is not connected to the outside.
Be sure to supply the same potential to each power terminal. (VVDD, ADAVDD, VDD, LVDD, RVDD, XVDD)
Terminal witch is controlled by the power terminal
for a microcomputer interface
pin), CL(62 pin), Di(63 pin),
pin), WRQ(65 pin), RES(66 pin), DRF(67 pin)
Page 47
VHiLC78645E-1: CD Servo (LC78645E)
77 76
75 74 73
72
DATA
DATACK
3
LRSY
RF
RFVDD
FIN2
TIN2
VREF
FE
TEC
TE
RFMON
ADAVDD
ADAVSS
TDO
CORRECTION
CD
Figure 47 BLOCK DIAGRAM OF
Page 48
8
P31
DRF
I
Input CD RF level detection.
9
WRQ
Input
CD DSP write request.
20
P24
21
P23
22
P22
23
24
25 AVSS
26
CD CE
CE
CLK
DO
AVSS
SW
DISC NO SW
output
CD DSP CE output.
output
CE output.
output Clock output.
output Data output.
Input Data input.
Analog ground.
Input CD open/Close switch.
Input CD disc number switch.
27
28
29
30
31-33
34
35
NO USE
Input
GND.
TUNER SM Input
Tuner signal meter input.
Input/Output
DSA acr.
SPEANA 2 Input Speana data input 16
SPEANA 1
Input
Speana data input
SPEANA 0 Input Speana data input 63
KEY P-KEY 0 Input Key input.
AVDD AVDD
Input
Analog VDD.
AVREF
AVREF
36
lNTP3
P-IN
lnout
Power failure detect.
I
37
PO2
JOG 1
Input
JOG volume input 1.
38
JOG 0 Input JOG volume input 0.
39
REMOCON
Input Remocon input.
40
vss vss
Ground voltage.
41
P74 SMUTE
output
System mute control.
42
P73
T-SOL-B output Tape 2 solenoid control.
43
P72
T-SOL-A output Tape
solenoid control.
44
P71
T-MOTOR output Tape motor control.
45
TIMER LED
Timer LED control.
46
VDD
VDD
Input
Power supply.
47’
P127
AC RLY-CONT
output
AC relay control.
48
P126
SP-RLY output
Speaker output relay control.
Input
Speaker output detection.
In this unit, the terminal with asterisk mark
is (open) terminal which is not connected to the outside.
48
Page 49
RI+iX0460AWZZ: System Microcomputer (IX0460AW)
57
58
P114
LCKO
Input
Mic switch.
Output
LED driver
59
Output
Destination output.
I
60
FIP39
NO USE
GND
I
61
FIP38
KARAOKE LATCH
I
Karaoke latch.
I
FIP32
P22
Output
FL display driver.
68
69
70
Destination input.
output FL display driver.
Input
Destination input.
output FL display driver.
Pl 00
Destination input.
FIP29
I
Output I FL displav driver.
I
Output I FL displav driver.
I
79
VLOAD
VLOAD
Input FL driver
power supp. -30
PlO-PI
FL display driver.
Output
FL display driver.
I
In this unit, the terminal with asterisk mark
is (open) terminal which is not connected to the outside.
49
Page 50
Audio Processor (LC75341)
LOUT 4
LBASS
0.1
LTRE
l -
I
ROUT
Page 51
Mic Amp. (M65856SP)
1
Input Microphone SW L:
OFF, H:
ON
2
MCLKCONT
Clock Control.
Controls built-in clock generation circuit with external
3
VALC
ALC operating voltage setting terminal.
To set ALC operating voltage according to applied voltage.
4
IN
Input
Microphone 1 input.
To connect
control.
To connect
time setting capacitor.
Input
Microphone 1 negative feedback input.
To connect low cut-off frequency of
amplifier setting capacitor.
7’
OUT
output Microphone 1 output.
8
Input Microphone 1 volume input.
To connect capacitor to reduce noise generated at time of volume change.
9
Input
Microphone 2 input.
To connect
2.
ALC2
ALC2 control.
To connect
time setting capacitor.
11
Input
Microphone 2 negative feedback input.
To connect low cut-off frequency of
amplifier setting capacitor.
12
OUT output Microphone 2 output.
13
Input Microphone 2 volume input.
To connect capacitor to reduce noise generated at time of volume change.
14
output
Microphone output.
Mixing output of
1 and
2.
15
Pre-filter before A/D convertor for digital delay.
16
IN2
Input
Low pass filter 1 input 2.
Pre-filter before A/D convertor for digital delay.
17
output
Low pass filter 1 output.
Pre-filter before A/D convertor for digital delay.
18
AD
output A/D integrator output.
Composes D/A conversion integrator with external capacitor.
19
AD
Input A/D integrator input.
Composes D/A conversion integrator with external capacitor.
20
ADCONT
A/D control.
To determine adaptive time constant of A/D convertor with ADM system.
21
REF
Reference power output.
To connect
Vcc output and filter capacitor.
22
GND
23
vcc Input
Power supply.
24
DACONT
D/A control.
To determine adaptive time constant of D/A convertor with ADM system
25 DAINTIN
Input D/A Integrator input.
Composes D/A conversion integrator with external capacitor.
26 DAINTOUT
output D/A Integrator output.
Composes D/A conversion integrator with external capacitor.
27
Input Low pass filter 2 input 1.
Post-filter after D/A convertor for digital delay.
28
Post-filter after D/A convertor for digital delay.
29
output
Low pass filfer 2 output.
Post-filter after D/A convertor for digital delay.
30
To connect capacitor to reduce noise generated at time of volume change.
31
IN
Input
Lch line input.
32
IN Input Rch line input.
In this unit, the terminal with asterisk mark
is
(open)
terminal which is not connected
the
Page 52
VHiM65856SP-1: Mic Amp. (M65856SP)
Pin No.
Port Name
Input/Output
Function
Input
Monaural input for external KEYCONTROL
Input/Output interface terminal for external KEYCONTROL
34’ SOURCEOUT output
Monaural input for external KEYCONTROL
Input/Output interface terminal for external KEYCONTROL
3.6
OUT
output
Rch mixing output.
36
OUT output Lch mixing output.
37
VCF IL
Vocal cut filter.
Processes frequencies lower then the vocal band.
Phase shift input 1.
Determines a constant at time of phase shift.
39’
Input
Phase shift input 2.
Determines a constant at time of phase shift.
40
LATCH
Input Latch input via serial bus.
41
CLOCK
input Clock input via serial bus.
42
DATA
input Data input via serial bus.
In this
unit, the terminal with asterisk mark
is (open) terminal which is not connected to the outside.
ECHO ECHO
MAIN LOGIC
Figure 52 BLOCK DIAGRAM OF
52
Page 53
FL DISPLAY
FL701
LM02Ti
FL Display
,
q
Page 54
SHARP
COPYRIGHT
2001 BY SHARP CORPORATION
ALL RIGHTS RESERVED.
No part of this publication may be reproduced,
stored in a retrieval system, or transmitted in
any form or by any means, electronic, mechanical,
photocopying, recording, or otherwise, without
prior written permission of the publisher.
SHARP CORPORATION
AV Systems Group
Audio Systems Division
Higashihiroshima, Hiroshima 739-0192,
Printed in
A01
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