Read Sharp DV-620 (serv.man3) Service Manual online
DV-620H
DV-620S
DV-620S
15
From (2)
PLAY TEST
30000001 00000000
PLAY TEST
DD000303 ********
(SPIN)
(00000000 00000000)
"3" Key input
"Open/Close" Key input
Because a tray opens, a disk is published.
It becomes following playback state.
(******** is a sector ID.)
(******** is a sector ID.)
A test jump can be done by inputting the following key
from the remote controller.
The offset adjustment of the spindle is done automatically.
TRACK
000000** 000000++
ADJUST COMPLETE
00**00** 000000**
"Retern" key input
"Rapid return" key
"Return" key
Following playback, jump test mode
FOCUS
000000** 000000**
FOCUS
000000** 000000++
"Menu" Key input
Offset adjustment mode
1
-1
3
1
4
-102
6
102
7
-510
9
510
C
-511
M
511
2
-765
Repeat
765
5
-766
A-B
766
8
-7000
Program
7000
Before skipping.
-15000
After skipping.
15000
Next replay Layer Jump
Key
Jump
Key
Jump
Connect the L side of the voltmeter to the IC702 (pin 18) and
its H side to the IC702 (pin 17).
Adjust the output voltage to a range of -30mV to +10mV with
the cross key "
its H side to the IC702 (pin 17).
Adjust the output voltage to a range of -30mV to +10mV with
the cross key "
↑
" or "
↓
".
With the cross joint key "
←
",
→
, 5 step change
FOCUS offset adjustment mode
Connect the L side of the voltmeter to the IC702 (pin 16) and
its H side to the IC702 (pin 15).
Adjust the output voltage to a range of -30mV to +10mV with
the cross key "
its H side to the IC702 (pin 15).
Adjust the output voltage to a range of -30mV to +10mV with
the cross key "
↑
" or "
↓
".
With the cross joint key "
←
",
→
, 5 step change
TRACK offset adjustment mode
For the section of **, the adjustment results are displayed.
The indication contents mean the "focus offset adjustment value",
"track offset adjustment value" and "spindle offset adjustment value"
from the left.
Cut a power source when you finish adjustment.
Push a "Rapid return" key when it is adjusted again.
When a "return" key is pushed, it is returned in the beginning of
servo adjustment mode.
The indication contents mean the "focus offset adjustment value",
"track offset adjustment value" and "spindle offset adjustment value"
from the left.
Cut a power source when you finish adjustment.
Push a "Rapid return" key when it is adjusted again.
When a "return" key is pushed, it is returned in the beginning of
servo adjustment mode.
End of adjustment
After it confirms that a spindle motor stops, "RETURN"key input
The part of ++ is changed
at every key input.
at every key input.
The part of ++ is changed
at every key input.
at every key input.
[ROM RENEWAL MODE]
1. A DVD itself and a personal computer are articulated as the right figure. Software for the renewal is started more.
2. A power source is put with pushing a DVD's own playback key and a halt key at the same time. (It keeps pushing it for about three
2. A power source is put with pushing a DVD's own playback key and a halt key at the same time. (It keeps pushing it for about three
seconds.)
3. When "a lateral" is inputted in accordance with the personal computer display and data transfer indication is shown and renewal
process is started normally when an ENTER key is pushed.
4. When renewal is completed normally.
5. "STOP" key is surely pushed if renewal is completed and the display
of above NO.4 is confirmed.It is made to turn off POWER after that.
R : OK
It is displayed.
W : STR
It is displayed.
W : END
It is displayed.
Personal computer
(DOS)
DVD itself
DIGITAL It is articulated to the
OUT terminal connection child.
OUT terminal connection child.
Fixture for the ROM renewal
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