Technics SL-DV290EE, Service Manual

Page: 37 / 119

Table 7-1
Display code Cause
H15 Disc tray open detect switch (S3) fault. /
(Check and replace)
F16 Clamp switch (S4) fault. / (Check and
replace)
F17 Bottom switch (S5) fault. / (Check and
replace)
F27 Tray position detect switch (S1, S2) fault.
/ (Check and replace)
F28 Disc load error.
F29 Disc unload error.
7.2. Service mode table 1
Pressing various button combinations on the unit and remote control can activate the service
modes.
Unit button Remote control
button
Application
0 Displaying the error code. (Refer to the item 7.3. “DVD/CD error
display”.)
5 Jitter check, optical pick-up tilt adjustment.
6 Checking the region numbers and broadcast system.
7 Checking the program version.
DISPLAY Checking DVD laser drive current measurement.
3 Checking CD laser drive current measurement.
Writing the laser drive current value after replacing the optical pick
(Do not perform this mode except for replacing the optical pick-up.)
Initialization (Restore factory preset settings) / Perform this mode
replacing the microcomputer, its peripheral parts and P.C.B..
7.3. DVD Self Diagnostic Function-Error Code
37