DOWNLOAD Sharp CD-E250 (serv.man10) Service Manual ↓ Size: 48.08 KB | Pages: 4 in PDF or view online for FREE

Model
CD-E250 (serv.man10)
Pages
4 Few pages! See other manuals at the bottom of the first or last page.
Size
48.08 KB
Type
PDF
Document
Service Manual
Brand
Device
Audio / System / Test mode
File
cd-e250-sm10.pdf
Date

Sharp CD-E250 (serv.man10) Service Manual ▷ View online

CD-E250E
CD-E550E
– 14 –
3.Preset frequencies for various destinations
(random preset memory)
BAND
6
AM  530 kHz
7
AM1720 kHz
8
AM
AM  990 kHz
9
AM  600 kHz
10
AM1400 kHz
AM
CH
BAND
16-35
36
FM106.0 MHz
37
FM  90.0 MHz
38
FM
FM  98.0 MHz
39
MONO
FM108.0 MHz
40
FM  87.5 MHz
FM
CH
• The slant line sections of the table store no memory.
BAND
1
FM  87.5 MHz
2
FM108.0 MHz
3
FM
FM  98.0 MHz
4
STEREO
FM  90.0 MHz
5
FM106.0 MHz
FM
CH
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 Volume -14 dB (STEP 23), FLAT
AND X-BASS ON, 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) X-BASS is switched when button is pressed..
5. Timer test Mode (TEST 4)
When this test mode is obtained, the following display lights
for one second.
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.
6. FL Test Mode (TEST 5)
When the FL test mode is obtained, all the FL segments are
lighted. Then pressing the "PLAY" button switches display
as below.
Lighting of all segments
Lighting of odd segments
Lighting of even segments
– 15 –
CD-E250E
CD-E550E
7. Button input diagnosis Test Mode (TEST 6)
When the test mode is obtained, the following is displayed.
(STAND-BY AND DEMO OFF STATUS)
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 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),  and electric CD lid, the following 10 buttons
are detected as all buttons.
PLAY, X-BASS/DEMO, FUNCTION, VOLUME UP/
DOWN, MEMORY/SET, REW, FF, STOP, CD-OPEN/
CLOSE
The OK/ERROR display of test result is as follows.
8. CD MECHANISM Aging Test Mode (TEST 8)
OPEN/CLOSE & 3 DISC CHANGER aging test.
DISPLAY:
FUNCTION:
Enter the TEST MODE 8, MCU control the 3 DISC
CHANGER OPEN/CLOSE. After open finished, tray rotate
1 circle (360 degree). Then close, After close finished, tray
rotate 1 circle (360 degree) again.
Request:
Every period include 4 operation. Below is TIMING:
Enter test mode
CHANGER
Find the disc 1 position
open
delay 3S after open finish
rotate 1 circle
close
delay 3S after close finish
rotate 1 circle
– 15 –
CD-E250E
CD-E550E
7. Button input diagnosis Test Mode (TEST 6)
When the test mode is obtained, the following is displayed.
(STAND-BY AND DEMO OFF STATUS)
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 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),  and electric CD lid, the following 10 buttons
are detected as all buttons.
PLAY, X-BASS/DEMO, FUNCTION, VOLUME UP/
DOWN, MEMORY/SET, REW, FF, STOP, CD-OPEN/
CLOSE
The OK/ERROR display of test result is as follows.
8. CD MECHANISM Aging Test Mode (TEST 8)
OPEN/CLOSE & 3 DISC CHANGER aging test.
DISPLAY:
FUNCTION:
Enter the TEST MODE 8, MCU control the 3 DISC
CHANGER OPEN/CLOSE. After open finished, tray rotate
1 circle (360 degree). Then close, After close finished, tray
rotate 1 circle (360 degree) again.
Request:
Every period include 4 operation. Below is TIMING:
Enter test mode
CHANGER
Find the disc 1 position
open
delay 3S after open finish
rotate 1 circle
close
delay 3S after close finish
rotate 1 circle
– 15 –
CD-E250E
CD-E550E
7. Button input diagnosis Test Mode (TEST 6)
When the test mode is obtained, the following is displayed.
(STAND-BY AND DEMO OFF STATUS)
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 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),  and electric CD lid, the following 10 buttons
are detected as all buttons.
PLAY, X-BASS/DEMO, FUNCTION, VOLUME UP/
DOWN, MEMORY/SET, REW, FF, STOP, CD-OPEN/
CLOSE
The OK/ERROR display of test result is as follows.
8. CD MECHANISM Aging Test Mode (TEST 8)
OPEN/CLOSE & 3 DISC CHANGER aging test.
DISPLAY:
FUNCTION:
Enter the TEST MODE 8, MCU control the 3 DISC
CHANGER OPEN/CLOSE. After open finished, tray rotate
1 circle (360 degree). Then close, After close finished, tray
rotate 1 circle (360 degree) again.
Request:
Every period include 4 operation. Below is TIMING:
Enter test mode
CHANGER
Find the disc 1 position
open
delay 3S after open finish
rotate 1 circle
close
delay 3S after close finish
rotate 1 circle
Display

Sharp CD-E250 (serv.man10) Service Manual ▷ Download

  • DOWNLOAD Sharp CD-E250 (serv.man10) Service Manual ↓ Size: 48.08 KB | Pages: 4 in PDF or view online for FREE
  • Here you can View online or download the Service Manual for the Sharp CD-E250 (serv.man10) in PDF for free, which will help you to disassemble, recover, fix and repair Sharp CD-E250 (serv.man10) System. Information contained in Sharp CD-E250 (serv.man10) Service Manual (repair manual) includes:
  • Disassembly, troubleshooting, maintenance, adjustment, installation and setup instructions.
  • Schematics, Circuit, Wiring and Block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Exploded View and Parts List.