CD-SW300H (serv.man3) - Sharp Audio Service Manual (repair manual). Page 11

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CD-SW300H
2 – 4
[3] CD section
CD Error code description
* 'CHECKING'
If Error is detected, 'CHECKING' will be displayed instead of 'ER-CD**'. 'ER-CD**' display will only be displayed
when error had been detected for the 5
th
 times.
Standard Specification of Stereo System Error Message Display Contents
(*) CHECKING:
If CD changer mechanism error is detected, 'CHECKING' will be display instead of 'ER-CD**'. 'ER-CD**' display will
only be display when error had been detected for the 5
th
 times.
Speaker abnormal detection and +B PROTECTION display
In case speaker abnormal detection or +B PROTECTION had occurred, the unit will automatically enter to stand - by
mode and Timer  indicator will be flashing as below.
+B PROTECTION is condition when irregular process occur on power supply line.
BEFORE TRANSPORTING THE UNIT
The following process need to be taken after set tapering/parts replacement.
1. Press the ON/STAND-BY button to enter stand-by mode.
2. While pressing down the 
button and the 
 button, press the GAME/VIDEO button. The Micro Computer
version number will be displayed as "CM*****".
3. Press 
 button until "WAIT"
→ "FINISHED" appears.
4. Unplug the AC cord and the unit is ready for transporting.
Error
Explanation
10*
CAM error. Can't detect CAM switch when CAM is moving.
11*
When it detect cam operation error during initialize pro-
cess.
20*
TRAY error. Can't detect TRAY switch when TRAY is mov-
ing.
21*
When it detect TRAY operation error during initialize pro-
cess.
31
When it change to CD function, DSP cannot read initial 
data.
Error Contents
Display
Notes
CD
CD Changer Mechanism Error.
'ER-CD**' (*)
10: CAM SW Detection NG during normal operation
11: CAM SW Detection NG during initialize process
20:TRAY SW Detection NG during normal operation
21:TRAY SW Detection NG during initialize process
CD DSP Communication Error.
'ER-CD31'
DSP COMMUNICATION ERROR.
Focus Not Match/IL Time Over.
'NO DISC'
TUNER
PLL Unlock.
PLL Unlock.
FM  87.5  MHz
FLASHING
1 FRAME
OFF
OFF
OFF
OFF
(REPEAT)
ON
TIMER
LED
ON
NO. 1
NO. 2
NO. 1
NO. 2
NO.1 : +B Protection
NO.2 : Speaker abnormal
FLASHING
Example : In case of speaker abnormal
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