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Model
XL-3000 (serv.man4)
Pages
22
Size
849.79 KB
Type
PDF
Document
Service Manual
Brand
Device
Audio / System / Text
File
xl-3000-sm4.pdf
Date

Sharp XL-3000 (serv.man4) Service Manual ▷ View online

– 21 –
XL-3000H
4. Electronic volume Test Mode (TEST 3)
When this test mode is obtained, the following display lights for one second.
In this mode, volume is -14 dB (STEP28), BASS/TREBLE is set to 0 (0 dB) and SURROUND mode to OFF, and start-up function
to CD, respectively.  The button operations in the test mode are the same as those of ordinary operation except volume UP/
DOWN.
(1) The display is the same as that of ordinary operation except test mode setting.
(2)  Unlike the ordinary state, the volume is controlled with the volume UP/DOWN button in accordance with the following three
steps.
      Volume- 
 
(STEP 0) <-> Volume-14 dB (STEP 23) <-> Volume-0 (STEP 30)
(3) BASS/TREBLE and SURROUND are switched when button is pressed..
Set the current time and timer time according to the following procedure to reproduce the timer.
1.Set the current time to 1:00, the timer to ON time 1:05, the function to CD, and volume to STEP 12, respectively.  One minute
is counted as one second, and the timer is reproduced. The fade-in (when playback is started) is executed at a rate of one step
for 1 sec.  After completion of fade-in, the fade-out is executed at a rate of one step for 1 sec (WAIT 1 sec inserted).
  After completion of fade-out, the power is turned off (after WAIT 1 sec), and the mode is shifted to the standby.
  The display during operation is the same as that of ordinary timer operation.
5. Timer test Mode (TEST 4)
When this test mode is obtained, the following display lights for one second.
g) When 01 to 03CH have been all used, scanning is stopped at the frequency where filling occurred, and the following is
displayed.
Number of stored stations -> Return to initial FM 106.50 MHz (ST)
              (1 second)                         (1 second)                             (1 second)
h)If any station cannot be preset and stored in the APMS mode,  "_0MEMORY" is displayed after scanning for 1 second. Then
FM 106.50 MHz (ST) display is restored. (The first digit is space.)
("_0MEMORY" is displayed in the test mode.)
i) When pressing "FUNCTION" button after storing three stations (after full-memory of 30 stations), "ASPM" blinks for 2
seconds, and then FM 106.50 MHz (ST) display is restored without ASPM scanning. (RDS automatic lighting)
(In case of FUNCTION button operation in full memory state)
j) After operation is completed, FM 106.50 MHz (ST) display is restored.
k) Test mode
DO not use only the FUNCTION button.
l) The first channel to be obtained (when data is stored in the ASPM mode) is 01CH.
m) After start-up in the ASPM test mode, the FUNCTION button is valid even if pressing it several times. The test mode is
kept.
If three stations are stored (1 to 3CH), full-memory state occurs.
When pressing the FUNCTION button after occurrence of full-memory state, the same operation as described in i) above
is performed.
Max. three stations are consecutively displayed.
6. LCD Test Mode (TEST 5)
When the LCD test mode is obtained, all the LCD segments are lighted. Then pressing the "PLAY" button switches display as
below.
          Lighting of all segments          Lighting of odd segments          Lighting of even segments
XL-3000H
– 22 –
This test mode is intended to check whether all the main unit buttons can be detected.  Accordingly, in this test mode, it is checked
whether the "ON/STAND-BY" button was pressed after all the buttons shown below were pressed.  If the result is OK, OK is
displayed.  If any one of keys was not pressed, an error is displayed.  In both cases of OK termination or error termination, the
mode is shifted to the standby mode if the "ON/STAND-BY" button is pressed subsequently.
All models using this type of microcomputer are not always provided with the same buttons.  Since the buttons used are different
depending on models, types of buttons to be used are determined by whether RDS, SURROUND, and an electric lid are
available at the initial setting by MODEL port.
The order of buttons to be pressed is not determined.  Accordingly, it is checked whether all buttons have been pressed.
1. PU-IN buttons: REW/PRESET DOWN + CD STOP
Since this model is provided with SURROUND (HAVE OR NOT), RDS (HAVE OR NOT), and electric CD lid, the following
10 buttons are detected as all buttons.
PLAY, BASS/TREBLE, FUNCTION, VOLUME UP/DOWN, MEMORY/SET, REW, FF, STOP, CD-OPEN/CLOSE
The OK/NG display of test result is as follows.
7. Key input diagnosis Test Mode (TEST 6)
When the test mode is obtained, the following is displayed.
a. POWER ON for function AUX
CD lid position is checked.
CLOSE position: Operation proceeds to the next process.
Position other than CLOSE: After the lid moves to CLOSE, operation proceeds to the next process.
b. CD lid operation started
OPEN operation
WAIT 1 second
CLOSE operation
WAIT 1 second
c. Operations above are repeated.
Specified monitoring time
OPEN operation: 5 seconds
CLOSE operation: 5 seconds
8. Electric CD lid Aging Test Mode (TEST 8)  (Only for model with electric CD lid)
Outline
OPEN/CLOSE operations of electric CD lid are repeated.  The number of repeated times and time period are monitored.  If the
lid does not move to the regular position after the specified time, operation is stopped. When an error is detected by [CLID_PRO]
during CLOSE, operation is also stopped.
d. Display
OPEN>CLOSE is counted as 1.  I to 59999 are counted; if the count is over
59999, display is returned to 0 to repeat counting.
Display when the lid does not move to the regular position after the specified
time
(Ex: Defective operation occurring in the middle of 1538.)
Highlight display of stop when an error is detected by [CLID-PRO]
 (Ex: Defective operation occurring in the middle of 1538.)
XL-3000H
– 22 –
This test mode is intended to check whether all the main unit buttons can be detected.  Accordingly, in this test mode, it is checked
whether the "ON/STAND-BY" button was pressed after all the buttons shown below were pressed.  If the result is OK, OK is
displayed.  If any one of keys was not pressed, an error is displayed.  In both cases of OK termination or error termination, the
mode is shifted to the standby mode if the "ON/STAND-BY" button is pressed subsequently.
All models using this type of microcomputer are not always provided with the same buttons.  Since the buttons used are different
depending on models, types of buttons to be used are determined by whether RDS, SURROUND, and an electric lid are
available at the initial setting by MODEL port.
The order of buttons to be pressed is not determined.  Accordingly, it is checked whether all buttons have been pressed.
1. PU-IN buttons: REW/PRESET DOWN + CD STOP
Since this model is provided with SURROUND (HAVE OR NOT), RDS (HAVE OR NOT), and electric CD lid, the following
10 buttons are detected as all buttons.
PLAY, BASS/TREBLE, FUNCTION, VOLUME UP/DOWN, MEMORY/SET, REW, FF, STOP, CD-OPEN/CLOSE
The OK/NG display of test result is as follows.
7. Key input diagnosis Test Mode (TEST 6)
When the test mode is obtained, the following is displayed.
a. POWER ON for function AUX
CD lid position is checked.
CLOSE position: Operation proceeds to the next process.
Position other than CLOSE: After the lid moves to CLOSE, operation proceeds to the next process.
b. CD lid operation started
OPEN operation
WAIT 1 second
CLOSE operation
WAIT 1 second
c. Operations above are repeated.
Specified monitoring time
OPEN operation: 5 seconds
CLOSE operation: 5 seconds
8. Electric CD lid Aging Test Mode (TEST 8)  (Only for model with electric CD lid)
Outline
OPEN/CLOSE operations of electric CD lid are repeated.  The number of repeated times and time period are monitored.  If the
lid does not move to the regular position after the specified time, operation is stopped. When an error is detected by [CLID_PRO]
during CLOSE, operation is also stopped.
d. Display
OPEN>CLOSE is counted as 1.  I to 59999 are counted; if the count is over
59999, display is returned to 0 to repeat counting.
Display when the lid does not move to the regular position after the specified
time
(Ex: Defective operation occurring in the middle of 1538.)
Highlight display of stop when an error is detected by [CLID-PRO]
 (Ex: Defective operation occurring in the middle of 1538.)
XL-3000H
– 22 –
This test mode is intended to check whether all the main unit buttons can be detected.  Accordingly, in this test mode, it is checked
whether the "ON/STAND-BY" button was pressed after all the buttons shown below were pressed.  If the result is OK, OK is
displayed.  If any one of keys was not pressed, an error is displayed.  In both cases of OK termination or error termination, the
mode is shifted to the standby mode if the "ON/STAND-BY" button is pressed subsequently.
All models using this type of microcomputer are not always provided with the same buttons.  Since the buttons used are different
depending on models, types of buttons to be used are determined by whether RDS, SURROUND, and an electric lid are
available at the initial setting by MODEL port.
The order of buttons to be pressed is not determined.  Accordingly, it is checked whether all buttons have been pressed.
1. PU-IN buttons: REW/PRESET DOWN + CD STOP
Since this model is provided with SURROUND (HAVE OR NOT), RDS (HAVE OR NOT), and electric CD lid, the following
10 buttons are detected as all buttons.
PLAY, BASS/TREBLE, FUNCTION, VOLUME UP/DOWN, MEMORY/SET, REW, FF, STOP, CD-OPEN/CLOSE
The OK/NG display of test result is as follows.
7. Key input diagnosis Test Mode (TEST 6)
When the test mode is obtained, the following is displayed.
a. POWER ON for function AUX
CD lid position is checked.
CLOSE position: Operation proceeds to the next process.
Position other than CLOSE: After the lid moves to CLOSE, operation proceeds to the next process.
b. CD lid operation started
OPEN operation
WAIT 1 second
CLOSE operation
WAIT 1 second
c. Operations above are repeated.
Specified monitoring time
OPEN operation: 5 seconds
CLOSE operation: 5 seconds
8. Electric CD lid Aging Test Mode (TEST 8)  (Only for model with electric CD lid)
Outline
OPEN/CLOSE operations of electric CD lid are repeated.  The number of repeated times and time period are monitored.  If the
lid does not move to the regular position after the specified time, operation is stopped. When an error is detected by [CLID_PRO]
during CLOSE, operation is also stopped.
d. Display
OPEN>CLOSE is counted as 1.  I to 59999 are counted; if the count is over
59999, display is returned to 0 to repeat counting.
Display when the lid does not move to the regular position after the specified
time
(Ex: Defective operation occurring in the middle of 1538.)
Highlight display of stop when an error is detected by [CLID-PRO]
 (Ex: Defective operation occurring in the middle of 1538.)
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Sharp XL-3000 (serv.man4) Service Manual ▷ Download