XL-HP500 (serv.man9). Adjustment - Sharp Audio Service Manual (repair manual). Page 3

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XL-HP500E
XL-HP500H
Standard Specification of Stereo System Error Message Display Contents
                     Error Contents
DISPLAY
                               Notes
TAPE
Mechanism Error.
'ER-TA**'
00: Tape Mechanism Error.
01: Initial Error.
CD
Pickup Mechanism Error.
'ER-CD**'
01: PU-IN SW Detection NG.
CD Changer Mechanism Error.
'ER-CD**'
10: Changer Error.
 (*)
11: Initial Error.
CD DSP Communication Error
'ER-CD**'
31: DSP COMMUNICATION ERROR
Focus Not Match.
'NO DISC'
IL Time Over.
'NOT READ'
TUN
PLL Unlock.
 
FM 
  
87.50
 
  MHz
PLL Unlock.
(*) CHECKING:
If CD changer mechanism error is detected, 'CHECKING' will be display instead of 'ER-CD**' display 'ER-CD**' will only be display
when CD changer mechanism 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, it can be check by pressing 'POWER', 'VIDEO' and 'X-
BASS' key twice. Display will show "S** B**". S is referring to speaker abnormal detection and B is referring to +B PROTECTION.
** is in hex valve.
+B PROTECTION is condition when irregular process occur on power supply line.
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