Sharp CD-XP305V Service Manual page 13

Standard Specification of Stereo System Error Message Display Contents
Error Contents
TAPE Mechanism Error.
CD Pickup Mechanism Error.
CD Changer Mechanism Error.
CD DSP Communication Error
Focus Not Match.
IL Time Over.
TUN 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.
VIDEO CD SECTION
TEST DISC Model No. TVD-581A (NTSC/PAL)
• Checking of video output signal
Checking of color bar
Disc Adjusting Point
Track 2 Video output terminal
UNIT
Video Output Terminal
Figure 13-1 CHECKING OF VIDEO OUTPUT SIGNAL
DISPLAY
'ER-CD**'
'ER-CD**'
(*)
'ER-CD**'
'NO DISC'
'NOT READ'
Instrument
Connection
Chroma Peak Level
105 ± 15 IRE
Video Input Terminal
TV
'ER-TA**' 00: Tape Mechanism Error.
01: Initial Error.
02:
03:
01: PU-IN SW Detection NG.
02:
03:
04:
10: Changer Error.
11: Initial Error.
12:
13:
31: DSP COMMUNICATION ERROR
'ER-TU**' 00: TUN Error.
01: PLL Unlock.
02:
03:
140 IRE
(1 V)
40 IRE
(0.286 V)
40 IRE
Color Burst
– 13 –
Notes
(59.94 Hz)
IH
100 100
88.5
75
75
100 IRE
(0.714 V)
33.5
20
5
0
-13.5
-20
-40
Figure 13-2
CD-XP305V
Color bar signal
70
waveform
41.5
Horizontal
sync signal
-25 -25