Functions Of Other Buttons; Test Mode Displays; Meanings Of Other Displays - Sony HCD-MD313 Service Manual

4-10. FUNCTIONS OF OTHER BUTTONS

Table 4-3.
Button
Turns recording on/off when pressed during
r REC
continuous playback.
§ (MD)
Disc eject
Note: The erasing-protection tab in not detected during the test mode.
Recording will start regardless of the position of the erasing-protec-
tion tab when the r REC button is pressed.

4-11. TEST MODE DISPLAYS

Each time the POWER button pressed, the display changes in the
following order.
Mode
display
Address display
ADIP address
display
Change over the display with the
POWER button.
Auto gain
display
Note: Auto gain display and IVR display are not used in servicing.
Contents
Error rate
display
SUB Q address
display
IVR
display
1. MODE display
Displays "TEMP ADJUST", "CPLAY MODE", etc..
2. Error rate display
Error rates are displayed as follows.
C1= AD=
C1= : Indicates C1 error
AD= : Indicates ADER
3. Address display
Address are displayed as follows.
h= a= (MO groove)
With this display, if POWER button is pressed, the following
will be displayed.
h= s= (MO pit and CD)
h=: Header address
s=: SUB Q address
a=: ADIP address
Note: "—" is displayed when the address cannot be read.
4. Auto gain display
Auto gain are displayed as follows.
AG = / [
A B C
A= Focus servo gain coefficient
B= Tracking servo gain coefficient
C= [OK] or [NG] or [ - -] (not converged)

4-12. MEANINGS OF OTHER DISPLAYS

Display
REC
Recording mode on
DISC High reflection rate disc
– 18 –
]
Table 4-4.
Contents
Light Off
Recording mode off
Low reflection rate disc