NAMES OF PARTS .......................................................................................................................................................... 3
TEST MODE ................................................................................................................................................................... 11
NOTES ON SCHEMATIC DIAGRAM ............................................................................................................................. 15
TYPE OF TRANSISTOR AND LED................................................................................................................................ 15
SCHEMATIC DIAGRAM / WIRING SIDE OF P.W.BOARD............................................................................................ 20
WAVEFORMS OF CD CIRCUIT..................................................................................................................................... 27
FUNCTION TABLE OF IC .............................................................................................................................................. 34
PARTS GUIDE/EXPLODED VIEW
PACKING OF THE SET (FOR U.S.A. ONLY)
DIFFERENCE BETWEEN XL-560 AND XL-570/570C
SECTIONXL-570/570C
CD Lid PanelNoneUsed
Speaker CordNoneUsed
SHARP CORPORATION
XL-560
– 1 –
This document has been published to be used
for after sales service only.
The contents are subject to change without notice.
XL-560,570/C
FOR A COMPLETE DESCRIPTION OF THE OPERATION OF THIS UNIT, PLEASE REFER
TO THE OPERATION MANUAL.
IMPORT ANT SER VICE NOTES (FOR U.S.A. ONLY)
BEFORE RETURNING THE AUDIO PRODUCT
(Fire & Shock Hazard)
Before returning the audio product to the user, perform the
following safety checks.
1. Inspect all lead dress to make certain that leads are not
pinched or that hardware is not lodged between the chassis
and other metal parts in the audio product.
2. Inspect all protective devices such as insulating materials,
cabinet, terminal board, adjustment and compartment covers
or shields, mechanical insulators etc.
3. To be sure that no shock hazard exists, check for leakage
current in the following manner.
* Plug the AC line cord directly into a 120 volt AC outlet.
* Using two clip leads, connect a 1.5k ohm, 10 watt resistor
paralleled by a 0.15µF capacitor in series with all exposed
metal cabinet parts and a known earth ground, such as
conduit or electrical ground connected to earth ground.
* Use a VTVM or VOM with 1000 ohm per volt, or higher,
sensitivity to measure the AC voltage drop across the
resistor (See diagram).
* Connect the resistor connection to all exposed metal parts
having a return path to the chassis (antenna, metal cabinet,
screw heads, knobs and control shafts, escutcheon, etc.)
and measure the AC voltage drop across the resistor.
VTVM
AC SCALE
1.5k ohms
10W
0.15µF
TEST PROBE
TO EXPOSED
METAL PARTS
All check must be repeated with the AC line cord plug connection
reversed.
Any reading of 0.3 volt RMS (this corresponds to 0.2 milliamp.
AC.) or more is excessive and indicates a potential shock
hazard which must be corrected before returning the audio
product to the owner.
CONNECT TO
KNOWN EARTH
GROUND
XL-560/570/C
SPECIFICA TIONS
General
Power source:AC 120 V, 60 Hz
Power consumption:
50 W
Dimensions:Width; 6-5/16" (160 mm)
Height; 9-1/2" (241 mm)
Depth; 11-3/4" (298 mm)
Weight:7.3 lbs. (3.3 kg)
Amplifier section
Output power:16 watts minimum RMS per
channel into 4 ohms from
100 Hz to 20 kHz, 10%
total harmonic distortion
Output terminals:Speakers; 4 ohms
Headphones; 16-50 ohms
(recommended; 32 ohms)
CD digital output (optical)
Sub woofer (Audio signal);
500 mV / 47 kohms
Input terminals:Video/Auxiliary (audio sig-
nal); 500 mV/47 kohms
Compact disc player section
Type:Compact disc player
Signal readout:Non-contact, 3-beam semi-
conductor laser pickup
D/A converter:1-bit D/A converter
Filter:8-times oversampling digital
filter
Frequency
response:20 - 20,000 Hz
Wow and flutter:Unmeasurable (less than
0.001% W. peak)
Tuner section
Frequency range:FM; 87.5-108 MHz
AM; 530-1,720 kHz
Cassette deck section
Frequency
response:
Signal/noise ratio:50 dB
Wow and flutter:0.25 % (WRMS)
50 - 14,000 Hz
(Normal tape)
Speaker section
CP-XL570U
Type:2-way [4-3/4" (12 cm)
Rated input power: 20 W
Maximum input
power:40 W
Impedance:4 ohms
Dimensions:Width; 6-5/16" (160 mm)
Weight:5.5 lbs. (2.5 kg)/each
CP-XL560U
Type:2-way [4" (10 cm) woofer
Rated input power: 20 W
Maximum input
power:40 W
Impedance:4 ohms
Dimensions:Width; 6-5/16" (160 mm)
Weight:4.4 lbs. (2.0 kg)/each
Specifications for this model are subject to change without
prior notice.
– 2 –
woofer and 1" (2.5 cm)
semi-dome tweeter]
Height; 9-1/2" (240 mm)
Depth; 7-7/16" (189 mm)
and 5/8" (1.5 cm) tweeter]
Height; 9-1/2" (240 mm)
Depth; 7-7/16" (189 mm)
XL-560/570/C
1
2
3
6
4
5
1
23 4
5
6
7 89
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
2827
■ Front panel
11. Timer Indicator
12. Record Indicator
13. Sleep Indicator
14. (CD) Random Indicator
15. (CD/TUNER) Memory Indicator
16. FM Stereo Mode Indicator
17. (CD) Play Indicator
18. (CD) Repeat Indicator
19. FM Stereo Indicator
10. CD Compartment
11. Power Button
12. Volume/Jog Dial Selector Button
13. Record Pause/Beat Cancel Selector Button
14. Clock/Timer/Sleep Button
15. Function Selector Button
16. Remote Control Sensor
17. Band Selector Button
18. Memory/Set Button
19. CD Eject Button
20. Bass/Treble Selector Button
21. (CD) Play/Pause Button
(TAPE) Play Button
22. (CD/TAPE) Stop Button
(TUNER) Clear Button
23. (CD) Cue Button
(TAPE) Fast Forward Button
(TUNER) Tuning Up Button
(−) terminal and the plain wire to the plus (+) ter-
minal.
Notes:
Do not mix the right channel and left channel wir-
ing when connecting the speakers to the unit.
Do not let the bare speaker wires touch each other
as this may damage the amplifier and/or speakers.
Do not allow any objects to fall into or to be placed
in the bass reflex ducts.
Caution:
The speakers included with the unit should only
be used with the XL-570 or XL-560. Do not use
them with other models. Do not connect the XL-
570's or XL-560's speaker terminals to any speak-
ers other than those included with the unit.
RATED SPEAKER IMPEDANCE:
4 OHMS MIN.
SPEAKERS
LEFT
RIGHT
2
1
3
Right speaker
Left speaker
Black
White
line
Black
In the case of XL-560
In the case of XL-570
RATED SPEAKER IMPEDANCE:
4 OHMS MIN.
SPEAKERS
LEFT
RIGHT
2
1
3
Right speakerLeft speaker
White
line
Black
Black
Black
White
line
TV,PC monitor location:
The speakers are magetically shielded. The speak-
ers may be used by the sides of the TV or PC Mon-
itor.
Depending on the particular location of a TV, or
PC monitor, color variations may appear on the
TV, or PC monitor screen. If this occurs, move the
systems speakers away from the TV/PC monitor
and turn it off. After 15 - 30 minutes, turn on the
TV/PC monitor again.
The TV, or PC monitor's own demagnetizing func-
tion should eliminate the variations.
If the color variations still appear, move the system
further away from the TV, or PC monitor.
If any kind of magnet or an electromagnet is
placed too close to the TV/PC monitor and the
system, irregular colors may appear on the TV or
PC monitor screen.
(Continued)
SUB
WOOFER
OUT
Speaker with a
built-in amplifier
Sub woofer
When a commercially available speaker with a
built-in amplifier is connected to this unit, you can
enjoy sound with emphasized bass.
Connect an RCA cord from a commercially
available speaker with a built-in amplifier to the
SUB WOOFER OUT jack.
Remote control
Notes concerning use:
Replace the batteries if the operating distance is
reduced or if the operation becomes erratic.
Periodically clean the transmitter LED on the re-
mote control and the sensor on the main unit with
a soft cloth.
Exposing the sensor on the main unit to strong
light may interfere with operation. Change the
lighting or the direction of the unit.
Keep the remote control away from moisture, ex-
cessive heat, shock, and vibrations.
15
15
8" - 20'
(0.2 m - 6 m)
(Continued)
RESETTING THE MICROCOMPUTER
1
Press the POWER button to enter the stand-by
mode.2Unplug the AC power cord from the AC INPUT
jack on this unit.
3
While pressing down the MEMORY/SET button
and the BASS/TREBLE button, plug the AC
power cord into the AC INPUT jack on this unit.
Caution:
The operation explained above will erase all data
stored in memory, such as clock and timer settings,
and tuner and CD presets.
1
3
3
2,3
Reset the microcomputer under the following con-
ditions:
To erase all of the stored memory contents (clock
and timer settings, and tuner and CD presets).
If the display is not correct.
If the operation is not correct.
XL-560,570/C
– 5 –
XL-560,570/C
SETTING THE CLOCK
In this example, the clock is set for the 12-hour
(AM 12:00) system.
3
Turn the jog dial to select the time display
mode.
"AM 12:00" → The 12-hour display will appear.
(AM 12:00 - PM 11:59)
"0:00"→ The 24-hour display will appear.
(0:00 - 23:59)
Note that this can only be set when the unit
is first installed or it has been reset.
4
Press the MEMORY/SET button.
5
Adjust the hour by turning the jog dial.
When the jog dial is turned one click clockwise,
the time will increase by 1 hour. When it is
turned one click counterclockwise, the time will
decrease by 1 hour.
Keep turning the jog dial to change the time
continuously.
When the 12-hour display is selected, "AM" will
change automatically to "PM".
6
Press the MEMORY/SET button.
7
Adjust the minutes by turning the jog dial.
When the jog dial is turned one click clockwise,
the time will increase by 1 minute. When it is
turned one click counterclockwise, the time will
decrease by 1 minute.
Keep turning the jog dial to change the time
continuously.
The hour setting will not advance even if min-
utes advance from "59" to "00".
8
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 cord is disconnected, the clock display
will go out.
When the AC power supply is restored, the
clock display will flash on and off to indicate
the time when the power failure occurred or
when the AC power cord was disconnected.
If this happens, follow the procedure below to
change the clock time.
To change the clock time:
Perform steps 1, 2 and 5 - 8 above.
To change the time display mode:
Perform steps 1 - 3 in the section "RESET-
TING THE MICROCOMPUTER".
Perform steps 1 - 8 above.
Jog dial
(Main unit operation)
CLOCK/TIMER/
SLEEP
MEMORY/
SET
AM 12:00 0:00
2
3
4
5
6
7
8
1
Press the CLOCK/TIMER/SLEEP button to
enter the time check mode.
2
Within 3 seconds, press the MEMORY/SET
button.
1
2
RIGHT
USING EXTERNAL UNITS
CD digital output (optical)
The CD digital signal from this unit can be re-
corded by other DAT or MiniDisc recorders.
1
Remove the DIGITAL OUT jack cover.
2
Use a commercially available digital cable to con-
nect the unit to the OPTICAL IN jack of a
MiniDisc recorder or a DAT.
3
Put the external unit in the recording mode.
4
Play a CD on this unit.
Commercially available digital cable
Before plugging in or unplugging the headphones,
make sure the volume level is reduced.
Be sure your headphones have a 1/8" (3.5 mm) di-
ameter plug and are between 16 ohms and 50 ohms
impedance. The recommended impedance is 32
ohms.
When headphones are connected, the speakers are
disconnected automatically. Adjust the VOLUME con-
trol for desired volume.
Headphones
Note:
Only CD signals can be output from this unit to
other DAT or MiniDisc recorders.
RIGHT
LEFT
VIDEO/AUX
To the output
jack
To the line
output jack
LEFT
A cable [a 1/8" (3.5 mm) ste-
reo mini-plug to pin-plugs]
RCA cord
RCA cord
LEFT
RIGHT
RIGHT
LEFT
To the line output jack
Connect each plug completely. If the units are not
connected correctly, it may not be possible to re-
cord or playback properly.
Before connecting external units, turn the power
to this unit and external units off.
VIDEO/AUX (Audio signal) input
To listen to or record signals from external
sources (personal computer, VCR, etc.) through
this unit:
1
Use a separately available RCA cord or a sep-
arately available cable [a 1/8" (3.5 mm) stereo
mini plug to pin plugs] to connect the desired
external unit to the VIDEO/AUX jacks.
(red → right channel, white → left channel)
Notes:
When your computer is not equipped with an
audio output terminal, a PC sound board is
needed.
When using video equipment (Laser Disc player,
VCR), be sure to connect the audio output to this
unit and the video output to a television.
2
Press the POWER button to turn the power on.
3
Press the FUNCTION button until "AUX" appears
in the display.
4
Operate the external unit.
5
To record the sound from the external unit, per-
form steps 2 - 4 of the "Recording from the built-
in radio".
Notes:
To prevent hum interference, do not place this unit
near television receivers and be careful not to turn the
computer volume up too high.
When turning the computer on or off, noise may be
heard, depending on the model.
Before turning your computer on or off, put the
POWER button on this unit in the stand-by mode, or
decrease the volume.
When an external unit with a built-in microphone or a
mixing microphone function is connected to this unit,
howling may occur due to feedback. Decrease the
volume of this unit or the microphone volume of the
external unit, or move the microphone away from the
speakers.
– 6 –
QUICK GUIDE (FOR XL-560/570)
RATED SPEAKER IMPEDANCE:
4 OHMS MIN.
SPEAKERS
LEFT
RIGHT
2
Preparation for use /
Preparación para su uso
Remote control x 1
Controlador remoto x 1
Speaker connection
Conexión de los altavoces
Antenna connection
Conexión de las antenas
Right speaker
Altavoz derecho
White line
Líneas
blancas
Black
Negro
DESK TOP AUDIO SYSTEM
Quick Guide/Guía rápida XL-570/XL-560
1
Check the supplied accessories /
Compruebe los accesorios suministrados
AC power cord x 1
Cable de alimentación
de CA x 1
FM antenna x 1
Antena de FM x 1
AM loop antenna x 1
Antena de cuadro de
AM x 1
Speaker wire x 2
(Only supplied with the XL-570)
Cable del altavoz delantero x 2
(Sólo suministrado con el XL-570)
ANTENNA
LOOP
FM
75
OHMS
White
line
Línea
blanca
Left speaker
Altavoz izquierdo
Black
Negro
White
line
Línea
blanca
FM Antenna
Antena de FM
In case of XL-570
En el caso del XL-570
AM Loop Antenna
Antena de cuadro
de AM
AC 120 V, 60 Hz
120 V de CA, 60 Hz
Turning the power on and off
Conexión y desconexión de la
alimentación
Remote control
Controlador remoto
POWER
POWER
2 “AA” batteries
Dos pilas “AA”
Remote Sensor
Sensor remoto
Batteries are not included.
Las pilas no están incluidas.
15
15
8” - 20’ (0.2m - 6m)
0,2m - 6m
Black
Negro
4
Listening to a tape /
Audición de una cinta
5
Listening to the radio /
Audición de la radio
6
Recording from CD /
Grabaciones de un disco CD
7
Sound control /
Control del sonido
To stop playback
Para detener la reproducción
To stop recording
Para detener la
grabación
Volume
Volumen
Bass
Graves
Treble
Agudos
3
Listening to a CD /
Audición de un disco CD
FUNCTION
FUNCTION
FUNCTION
(FM STEREO)
(FM MONO)
(AM)
BAND
TUNING
FUNCTION
REC PAUSE
VOLUME / MULTI JOG
D
O
W
N
P
R
E
S
E
T
U
P
CD
CD
VOLUME / MULTI JOG
D
O
W
N
P
R
E
S
E
T
U
P
CD
CD
VOLUME / MULTI JOG
D
O
W
N
P
R
E
S
E
T
U
P
CD
CD
Load the
disc to be
recorded.
Introduzca
el disco
que va a
grabar.
CD recording
starts.
La grabación de
CD empieza.
The tape
will stop
La cinta se
detendrá.
The CD
will stop.
EI CD se
detendrá.
Open
Abra
Label side up.
Con el lado de la
etiqueta encarada
hacia arriba.
Close
Cierre
To stop playback
Para detener la
reproducción
XL-560,570/C
– 7 –
XL-560,570/C
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.
9CD Digital PWB1. Screw .................. (J1) x19-1
10 Tape Mechanism1. Open the cassette holder9-1
11 CD Mechanism1. Screw .................. (L1) x39-2
Note:
After removing the connector for the optical pickup from the
connector, wrap the conductive aluminium foil around the
front end of connector to protect the optical pickup from
electrostatic damage.
Perform steps 1 to 6 and 11 of the disassembly method to
remove the CD mechanism.
How to remove the pickup (See Fig. 9-5)
1. Remove the mechanism cover, paying attention to the
pawls (A1) x 4 pcs.
2. Remove the screws (A2) x 2 pcs., to remove the shaft (A3)
x 1 pc.
3. Remove the stop washer (A4) x 1 pc., to remove the gear
(A5) x 1 pc.
4. 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 to protect the optical pickup from
electrostatic damage.
Figure 9-4
Mechanism Cover
(A1) x2
(A1) x2
(A2) x2
ø2.6 x6mm
CD Mechanism
Shaft
(A3) x1
StopWasher
(A4) x1
Gear
(A5) x1
Pickup Unit
Figure 9-5
– 9 –
XL-560,570/C
ADJUSTMENT
MECHANISM SECTION
• Driving Force Check
Torque Meter
Play: TW-2412Over 80 g
• Torque Check
Torque Meter
Play: TW-211130 to 60 g. cm
Fast forward: TW-223155 to 140 g.cm
Rewind: TW-223155 to 140 g.cm
• Tape Speed
Test Tape
MTT-111Motor3,000 ±Headphone
Adjusting
Point
(M901)90 Hzterminal
TUNER SECTION
fL: Low-range frequency
fH: High-renge frequency
• AM IF/RF
Signal generator: 400 Hz, 30%, AM modulated
Test Stage
IF450 kHz1,720 kHzT351*1
AM Band—530 kHz(fL): T306*2
Coverage1.1 ± 0.1 V
AM990 kHz990 kHzT302*1
Tracking
*1. Input: Antenna, Output: Speaker Terminal
*2. Input: Input is not connected,Output: TP301
• FM RF
Signal generator: 1 kHz, 75 kHz dev., FM modulated
the core of IC301
T304 fullyOutput: TP302
counterclockwise.
TAPE MECHANISM
M901
Tape
Motor
Variable
resistor
Figure 10-1 ADJUSTMENT POINT
MAIN PWB
IC302
AM IF
FM Mute
T351
Level
CF352
IC303
TP302
CNP602
VR351
T306
AM Band
Coverage fL
Figure 10-2 ADJUSTMENT POINTS
• Check FM VT
Signal generator: 1 kHz, 40 kHz dev., FM modulated
Frequency
87.5 MHz87.5 MHz2.2 V ± 0.7 VTP301
108 MHz108 MHz7.3 V ± 1.0 VTP301
Display
• Setting the Test Mode
Keeping the FF/FWD button and MEMORY/SET button
pressed, turn on POWER. Then, the frequency is initially set
in the memory as shown in Table. Call it with the JOG DIAL
knob to use it for adjustment and check of tuner circuit.
The test mode applied to this microcomputer has three modes, namely ordinary test mode to be used for adjustment or
measurement, aging test mode to be used for aging test, and self-diagnosis test mode for self-inspection in case of final product
inspection.
1. Turning on the test mode
To turn on the specific test mode, press the POWER button, holding down the following two buttons in the ordinary stand-by
mode (power off state). In this case only the main unit button is valid. Even when the POWER of remote control button is set
to on, the test mode is not turned on.
[Ordinary test mode]
1. CD Test Mode (TEST 1)………………………… BASS/TREBLE + PLAY
2. Tuner Test Mode (TEST 2)……………………… FF/FWD + MEMORY/SET
3. Electronic volume Test Mode (TEST 3)…………STOP + BASS/TREBLE
4. Timer Test Mode (TEST 4)……………………… FF/FWD + BAND
5. LCD Test Mode (TEST 5)…………………………MEMORY/SET + REW/REV
[Self-diagnosis Test Mode]
1. Button input diagnosis test mode (TEST6).………
2. CD Test Mode (TEST 1)
In the CD test mode the operation of each step is enabled even when the LID-SW is off. However, if focus cannot be set in step
3 or any error processing is started, it is impossible to proceed to the next step. When the error processing is started, operations
other than termination of test mode by pressing the POWER button or return to the step 1 by pressing the STOP button are inhibited.
FF/FWD + REC PAUSE
1. Step 1 Mode
When the CD test mode is turned on, the following indication lights, the processing (until turning-off of CD STB terminal of CD
initialization operation flow) is executed, and the next button input is waited.
After lighting for one second
If the following operation buttons are pressed in this state, the operation is performed as follows.
"POWER".................The test mode is turned off, the power is turned off, and the ordinary standby mode is set.
"FF/FWD"................. After the pickup returns once to the innermost periphery, it slides toward the outer periphery while this
button is held down.
"REW/REV"..............After the pickup returns once to the innermost periphery, it slides toward the inner periphery while thi s
button is pressed. However, if PU-IN is on, input is invalid.
"PLAY" ..................... Shift to step 2
"STOP".....................Invalid
"REC PAUSE"..........Shift to step 5
* In case of initialization the pickup is moved toward the inner periphery. Any buttons other than "POWER" button are not
accepted until the shift of pickup to the inner periphery is completed at this time. If PU-IN SW ON cannot be detected within
10 seconds, the slide motor is stopped, and the following error indication appears. Press the POWER button to end the test
mode, or press the STOP button to return to step 1. Any other operations are inhibited.
– 11 –
XL-560,570/C
2. Step 2 Mode
When the "PLAY" button is pressed in this mode, the laser lighting command LDON (8400) is sent, and the laser is turned on.
Other operations are not performed.
If the following buttons are pressed in this state, the operation is performed as follows.
"POWER" ................ The test mode is turned off, the power is turned off, and the ordinary standby mode is set.
"FF/FWD" ................The pickup slides toward the outer periphery while this button is held down.
"REW/REV" .............The pickup slides toward the inner periphery while this button is held down. However, if PU-IN is on, input
is invalid.
"PLAY".....................Shift to step 3
"STOP" ....................Return to step 1
"REC PAUSE" .........Shift to step 5
3. Step 3 Mode
The laser is kept lighting. The processing (until turning-on of CLV servo of CD initialization operation flow) is executed, and
the next button input is waited. (The focus servo is turned on, and focus search is performed.)
The focus search is repeated until the focus is set.
When the following operation buttons are pressed in this state, the operation is executed as follows.
"POWER" ................ The test mode is turned off, the power is turned off, and the ordinary standby mode is set.
"FF/FWD" ................The pickup slides toward the outer periphery while this button is held down.
"REW/REV" .............The pickup slides toward the inner periphery while this button is held down. However, if PU-IN is on, input
is invalid.
"PLAY".....................If the focus has been set, shift to step 4 is executed. If the focus has not been set, acceptance is inhibited.
"STOP" ....................Return to step 1
"REC PAUSE" .........Shift to step 5
*If the focus is disturbed after it has been set, the process returns to step 1.
4. Step 4 Mode
The CLV servo ON command (8600) sending operation is performed, and the next button input is waited. (The disc is rotated
to perform CLV locking.)
The time display indicates always "0:00".
When the following buttons are pressed in this state, the operation is executed as follows.
"POWER" ................ The test mode is turned off, the power is turned off, and the ordinary standby mode is set.
"FF/FWD" ................The pickup slides toward the outer periphery while this button is held down.
"REW/REV" .............The pickup slides toward the inner periphery while this button is held down. However, if PU-IN is on, input
is invalid.
"PLAY".....................Shift to step 5
"STOP" ....................Return to step 1
"REC PAUSE" .........Shift to step 5
*If the focus is disturbed, the process returns to step 1.
5. Step 5 Mode
The CD initialization operation flow is executed to the end, the mute is set to off, and playback is started. Even when the
playback reaches the outermost periphery of disc, the operation does not stop. The LCD display indicates the playback past
time as in case of ordinary CD playback.
– 12 –
XL-560,570/C
When the following operation buttons are pressed in this sate, the operation is executed as follows.
"POWER"................. The test mode is turned off, the power is turned off, and the ordinary standby mode is set.
"FF/FWD"................. The pickup slides toward the outer periphery while this button is held down.
"REW/REV"..............The pickup slides toward the inner periphery while this button is held down. However, if PU-IN is on, input
is invalid.
"PLAY" .....................Invalid
"STOP".....................Return to step 1
"FUNCTION"............Shift to step 6
"BAND" ....................Shift to step 7
*If the focus is disturbed, the process returns to step 1.
Other cautions
• TOC IL is not executed in the test mode.
• As for button operations other than those shown above, only the sound volume operation (with JOG) is accepted.
3. Tuner Test Mode (TEST 2)
1. Outline of tuner (radio) test mode
The tuner test mode is intended to store the adjustment and measurement frequencies in the preset memory CH without
frequency setting by adjusting personnel when the tuner section is adjusted in the production line.
2. Details of tuner test mode
When the power is turned on by using the "POWER" button while the "FF/FWD" and "MEMORY/SET" buttons are held down
in POWER OFF state, the frequency for adjustment and measurement of destination specified by the AREA terminal is preset
and stored in the preset memory CH. However, Ordinary 1 and Ordinary 2 are set to the designation (destination selected
by SPAN switching operation) set when the test mode is set. (As for frequencies to be preset and stored for each destination,
refer to item 3.)
The tuner test mode is started from preset No.1.
The operations of test mode are identical with the ordinary operations of TUNER function. However, FUNCTION switching
is invalid.
Since it is necessary to discard the content of preset memory when the tuner test mode is ended, "0000" or "1111" bits are
written in the memory to be checked in case of memory check (in case of initial setting) so that memory abnormality is detected
in case of initial setting so as to ensure memory initialization.
When the tuner test mode is turned on, the following indication lights for one second.
• The TUNER TEST2 mode is set as a result of >> + MEMORY + POWER. -> IF AC is set to OFF in the TEST2 mode, the initial
state is restored.
When POWER is set to OFF, the memory of TEST2 mode is protected.
When the power is turned on again, the ordinary operation is enabled while the data is stored in the
memory (besides TUNER).
If AC OFF state is maintained in this state for about 1/2 day, start is executed in the initial state.
• To clear the whole memory, insert the AC cord, holding down MEMORY + BASS/TREBLE.
3. Preset frequencies for various destinations (random preset memory)
• The hatched sections of the table are not stored in memory.
– 13 –
XL-560,570/C
4. Electronic volume Test Mode (TEST 3)
When the test mode is set, the following indication lights for one second.
When this mode is set, BASS/TREBLE is set to 0 (0 dB) and SURROUND mode is set to off, and start-up function is set to CD
when volume is -14 dB (STEP 17). The button operations in the test mode are the same as those of ordinary operation excepting
sound volume UP/DOWN.
(1) The indication is the same as that of ordinary operation excepting test mode setting.
(2) The sound volume control with the sound volume UP/DOWN button is only the following 3 steps unlike the ordinary state.
(3) BASS/TREBLE and SURROUND are switched when button operation is performed.
5. Timer test Mode (TEST 4)
When the test mode is set, the following indication lights for one second.
The current time and timer time are set in the following procedure to perform the timer playback.
1.Set the current time to 1:00, set the timer to ON time 1:02, set the function to Tape, and set volume STEP 8. One minute is counted
as one second, and the timer playback operation is performed. The fade-in (when playback is started) is executed at a rate of
one step for 0.5 sec. After completion of fade-in the fade-out is executed at a rate of one step for 0.5 sec (WAIT 1 sec inserted).
After completion of fade-out the power is turned off (after WAIT 1 sec), and the mode is changed to the standby mode.
The indication during operation is the same as that of ordinary timer operation.
6. LCD Test Mode (TEST 5)
When the LCD test mode is set, all the LCD segments are lighted. After that the indication is changed as follows according to
the "PLAY" button input.
Lighting of all segments Lighting of odd segments Lighting of even segments
7. Key input diagnosis Test Mode (TEST 6)
When the test mode is set, the following indication appears.
This test mode is intended to check whether all the main unit buttons can be detected. Accordingly, in this test mode checking
as to whether the "POWER" button was pressed after all the buttons shown below were pressed is performed. If the result is
OK, OK is indicated. Even any one of keys was not pressed, an error is indicated. In case of OK termination or error termination
exit from this mode occurs when the "POWER" button is pressed next time, and the standby mode is set.
All the models using this microcomputer do not use the same buttons. Some models do not have specific buttons. Accordingly,
the input of the following buttons is detected by using the combination of buttons to be pressed together when this mode is turned
on.
The button pressing order is not specified. Checking as to whether all the buttons were pressed is executed.
1. In case of "FF/FWD" + "REC PAUSE"
Since RDS and SURROUND are not provided, the following 11 buttons are detected as all buttons.
PLAY, JOG MODE, BAND, BASS/TREBLE, FUNCTION, MEMORY/SET, REC PAUSE, REW, FF, STOP, CLOCK/TIMER/
SLEEP
The OK/NG indication of test result is as follows.
– 14 –
NOTES ON SCHEMA TIC DIAGRAM
• Resistor:
To differentiate the units of resistors, such symbol as K and
M are used: the symbol K means 1000 ohm and the symbol
M means 1000 kohm and the resistor without any symbol is
ohm-type resistor. Besides, the one with “Fusible” is a fuse
type.
• Capacitor:
To indicate the unit of capacitor, a symbol P is used: this
symbol P means micro-micro-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), (RH), (UJ): Temperature compensation
(ML): Mylar type
(P.P.): Polypropylene type
• Schematic diagram and Wiring Side of P.W.Board 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.
• 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.