Aiwa AM-LM918, Руководство по обслуживанию, Страница: 10 / 36

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8-2 Focus Search/Spindle Kick Check 2 (S curve check)
1) In “ALL SV OFF”, press the “BAND” button on tuner section to change to focus search and spindle kick modes. At this time, “FOCUS
CHECK” appears on the display. This mode can operate repeatedly regardless of DISC existence and S curve can be checked with DISC in
this mode.
2) After checking, press the “STOP” button to return to “ALL SV OFF” display.
8-3 Focus Servo and Sled Error (EF Balance) Check
1) Insert the DISC.
2) Press the “MD MODE” button to choose the DISC mode as shown in the following.
• PIT DISC: Display shows “SELECT PIT” • MO DISC: Display shows “SELECT GRV”
3) Press the “PLAY” button.
During normal focus search, the display shows “FOCUS SRCH” followed by “FOCUS ON!” which indicates that focus search is turned on.
4) In “FOCUS ON!”, press the “DISPLAY” button on tuner section to show “S.ERR = **” on the display. This mode can check on DC offset of
EF balance.
S.ERR: Sled Error (EF balance, DC offset)
It is normal if it changes in a range of 70-89 where 80 is the centre.
5) After checking, press the “STOP” button to return to “ALL SV OFF” display.
8-4 All Servo On Check
1) In “FOCUS ON!” mode, press the “ENTER” button on amp section to turn on tracking sled servo and all the servo are activated.
If all the servo are normal, the display will show “ALL SV ON”.
2) After checking, press the “STOP” button to return to “ALL SV OFF” display.