Read Sharp DV-620 (serv.man3) Service Manual online
DV-620H
DV-620S
DV-620S
14
From (1)
To (2)
LASER TEST
30000001 00000000
DYNMIC TEST
30000000 00000000
LASER TEST
30000001 00000000
STEP TEST
DD000200 00000000
"1" Key input
"1" Key input
"Open/Close" Key input
"Playback" Key input
"1" Key input
Tray opens, and laser burns.
Spin rotation, slead circumference movement
Because a tray opens, a disk is published.
Focus on
STEP TEST
DD000201 00000000
"Playback" Key input
Track on
STEP TEST
DD000202 00000000
"Playback" Key input
Focus balance adjustment (1)
STEP TEST
DD000203 00000000
"Playback" Key input
RF, Focus, Track gain adjustment
STEP TEST
DD000211 00000000
"Playback" Key input
Focus balance adjustment (2)
Control data lead
Control data lead
STEP TEST
DD000212 ********
(******* is a sector ID)
After the focus balance of layer 1,
the RF gain, the focus gain adjustment,
following playback state
the RF gain, the focus gain adjustment,
following playback state
Laser test mode
STEP TEST
30000001 00000000
"2" Key input
Step execution mode
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