Denon DBT-1713UD - Diagnostics of Optical Pickup

Disc no read, unsteady playback, etc.
Laser drive current (Iop) check.
The MAIN PCB & BD MECHA
or the BD MECHA replacing.
Current value of the BD Iop is ±6[mA],
DVD or CD Iop is ±12[mA] or more the
initial value.
q
Check the laser drive current value
Disc no read, unsteady playback, etc.
ABD-RE540W disc playability check
(Load ve times of following disc)
Disc cannot play.
The MAIN PCB & BD MECHA
or the BD MECHA replacing.
w
Check the playability disc
15
DIAGNOSTICS OF OPTICAL PICKUP
Make failure diagnostics of the Optical Pickup as follows.
q
If the laser drive current (Iop) becomes more than BD : ± 6 [mA], DVD or CD : ±12 [mA] of the initial value, the Optical
Pickup should be replaced.
The laser drive current initial value is checked by "Iop checked Method" of next page.
w
Load ve times of following disc again and playing it for one minute. It becomes the aim of the Optical Pickup
exchange when it cannot play.
BD-RE ABD-RE540W(made by ALMEDIO)
In case of replacing the Pickup, change the whole part of the MAIN PCB & BD MECHA or BD MECHA.
No mechanical adjustment is necessary after the replacement. (HOW TO REP
ACE THE MAIN PCB & BD MECHA OR
THE BD MECHA (page 17))
Laser drive current initial value:
FL Display (The display part of 13 digits)
CD :
1 2 3 4 5 6 7 8 9 10 11 12 13
T 2 1 : m m m m : n n n n
FL Display (The display part of 13 digits)
DVD :
1 2 3 4 5 6 7 8 9 10 11 12 13
T 2 2 : m m m m : n n n n
FL Display (The display part of 13 digits)
BD(SL) :
1 2 3 4 5 6 7 8 9 10 11 12 13
T 2 3 : m m m m : n n n n