Sharp CD-DVD500 Service Manual page 21

Standard Specification of Stereo System Error Message Display Contents
Error Contents
Output while Device Protection Operation.
TAPE Mechanism Error.
DVD/VCD Pickup Mechanism Error.
CD Changer Mechanism Error.
Tray Error.
Focus Not Match.
Communication error.
TUN PLL Unlock.
Since the pickup semiconductor laser can easily damaged by
the static electricity, handle the mechanism unit with care.
To prevent damage by the static electricity during
transportation, the LD terminals are short-circuited at 2 points
on the PWB. Unsolder them by a soldering iron after
completing the connection. When you return the mechanism
unit, solder the terminals again.
DISPLAY
TIMER LED
'ER-TA**'
'ER-CD**'
'ER-CD**'
'ET-CD**'
'NO DISC'
'ER-CD**'
'ER-TU**'
Notes for handling the mechanism unit
Flexible PWB
Figure 21
– 21 –
00: While in Protect Circuit Operate.
01: Over Current Detection.
02: DC Detection.
03:
00: Tape Mechanism Error.
01: Initial Error.
02:
03:
00: Pickup Mechanism Error.
01: PU-IN SW Detection NG.
02:
03:
04:
10: Changer Error.
11: Initial Error.
12:
13:
20: Tray Error.
21:
22:
23:
30: DVD Error.
00: TUN Error.
01: PLL Unlock.
02:
03:
Soldering on the
mechanism PWB (two points)
DVD Motor PWB
CD-DVD500
Notes