Sony DCR-DVD505 / DCR-DVD505E / DCR-DVD905 / DCR-DVD905E (serv.man4) Service Manual ▷ View online
6-74
DCR-DVD505/DVD505E/DVD905/DVD905E_ADJ
Fig. 6-2-14
START button
Status lamp
Adjustment buttons
Order
1
2
3
4
5
6
7
8
9
10
Diagnostic item
OP Sensitivity
Offset Adjust
FE Balance
Write FE Bal
Servo Adjust
Disc Distinction
Threshold
Write Offset
Jitter & BLER
Operation
Click the
[START]
button of “DVD-RW Ad-
justment”.
Set the DVD-RW Reference + DOW Disc,
and then close the disc cover and click the
and then close the disc cover and click the
[OK]
button in the message window.
(If the adjustment result of previous item is
OK, this item is executed successively.)
OK, this item is executed successively.)
(If the adjustment result of previous item is
OK, this item is executed successively.)
OK, this item is executed successively.)
(If the adjustment result of previous item is
OK, this item is executed successively.)
OK, this item is executed successively.)
(If the adjustment result of previous item is
OK, this item is executed successively.)
OK, this item is executed successively.)
(If the adjustment result of previous item is
OK, this item is executed successively.)
OK, this item is executed successively.)
(If the adjustment result of previous item is
OK, this item is executed successively.)
OK, this item is executed successively.)
(If the adjustment result of previous item is
OK, this item is executed successively.)
OK, this item is executed successively.)
Remove the DVD-RW Reference + DOW
Disc. (On the AUDIT screen, if the status
lamps of respective adjustment buttons are
all lit in green, the adjustment is over.)
Disc. (On the AUDIT screen, if the status
lamps of respective adjustment buttons are
all lit in green, the adjustment is over.)
Message
Disc
No Disc
DVD-RW
Reference + DOW
Disc
Reference + DOW
Disc
No Disc
2-6.
DVD-RW ADJUSTMENT
2-6-1.
Menu in DVD-RW Adjustment Section
START button:
All items of adjustment buttons are ex-
ecuted in the descending order.
ecuted in the descending order.
Adjustment button:
Only the adjustment item assigned to the
button name is executed.
button name is executed.
Status lamp:
Adjustment status is displayed with color.
White ················ Not adjusted
Red blinking ···· Adjustment in progress
Green ················ Adjustment OK
Red ··················· Adjustment NG
White ················ Not adjusted
Red blinking ···· Adjustment in progress
Green ················ Adjustment OK
Red ··················· Adjustment NG
2-6-2.
Adjusting Method
Note:
Before exiting the AUDIT, click the
[SET]
button of “After completing the TEST” to cancel the TEST mode.
6-75
DCR-DVD505/DVD505E/DVD905/DVD905E_ADJ
START button
Status lamp
Adjustment buttons
Fig. 6-2-15
2-7-2.
Adjusting Method
Order
1
2
3
4
5
Diagnostic item
Wobble BPF
Center
Jiter & BLER
Data Dump
Operation
Click the
[START]
button of “DVD+RW Ad-
justment”.
Set the DVD+RW Reference Disc, and then
close the disc cover and click the
close the disc cover and click the
[OK]
but-
ton in the message window.
(If the adjustment result of previous item is
OK, this item is executed successively.)
OK, this item is executed successively.)
(If the adjustment result of previous item is
OK, this item is executed successively.)
OK, this item is executed successively.)
Remove the DVD+RW Reference Disc.
(On the AUDIT screen, if the status lamps of
respective adjustment buttons are all lit in
green, the adjustment is over.)
(On the AUDIT screen, if the status lamps of
respective adjustment buttons are all lit in
green, the adjustment is over.)
Message
Disc
No Disc
DVD+RW
Reference Disc
Reference Disc
No Disc
2-7.
DVD+RW ADJUSTMENT
2-7-1.
Menu in DVD+RW Adjustment Section
START button:
All items of adjustment buttons are ex-
ecuted in the descending order.
ecuted in the descending order.
Adjustment button:
Only the adjustment item assigned to the
button name is executed.
button name is executed.
Status lamp:
Adjustment status is displayed with color.
White ················ Not adjusted
Red blinking ···· Adjustment in progress
Green ················ Adjustment OK
Red ··················· Adjustment NG
White ················ Not adjusted
Red blinking ···· Adjustment in progress
Green ················ Adjustment OK
Red ··················· Adjustment NG
Note:
Before exiting the AUDIT, click the
[SET]
button of “After completing the TEST” to cancel the TEST mode.
6-76
DCR-DVD505/DVD505E/DVD905/DVD905E_ADJ
2-8.
TROUBLESHOOTING
2-8-1.
Fundamental Troubleshooting Flow
Yes
No
No
Yes
End
OK?
Execute <ADJUST>
Faulty part isolation processing
OK?
Execute <DIAGNOSIS>
Initial inspection
MD Board recovery processing
Yes
No
OK?
Execute <ADJUST>
(MD Block is faulty)
Return to initial inspection
Replace MD Block
Faulty part isolation processing
6-77
DCR-DVD505/DVD505E/DVD905/DVD905E_ADJ
Priority varies depending on the isolated item
Execute <ADJUST>
Restore original MD Block
Replace Driver IC
Replace DSP IC
Yes
No
End
OK?
Execute <ADJUST>
Replace RF IC
MD Board recovery processing
Click on the first or last page to see other DCR-DVD505 / DCR-DVD505E / DCR-DVD905 / DCR-DVD905E (serv.man4) service manuals if exist.