4
HCD-NE5
SECTION 1
SERVICING NOTES
NOTES ON HANDLING THE OPTICAL PICK-UP
BLOCK OR BASE UNIT
The laser diode in the optical pick-up block may suffer electro-
static break-down because of the potential difference generated
by the charged electrostatic load, etc. on clothing and the human
body.
During repair, pay attention to electrostatic break-down and also
use the procedure in the printed matter which is included in the
repair parts.
The flexible board is easily damaged and should be handled with
care.
NOTES ON LASER DIODE EMISSION CHECK
The laser beam on this model is concentrated so as to be focused
on the disc reflective surface by the objective lens in the optical
pick-up block. Therefore, when checking the laser diode emis-
sion, observe from more than 30 cm away from the objective lens.
LASER DIODE AND FOCUS SEARCH OPERATION
CHECK
Carry out the “S curve check” in “CD section adjustment” and
check that the S curve waveforms is output three times.
• MODEL IDENTIFICATION
– Rear Cabinet –
MODEL
Power Voltage Incdication
Canadian and
AC: 120 V 60 Hz 50 W
Mexican models
AEP and UK models
AC: 230 V
-
50/60 Hz 57 W
Australian model
AC: 230 – 240
-
50/60 Hz 65 W
Korean model
AC: 220 V
-
60 Hz 58 W
Taiwan model
AC: 120 V 50/60 Hz 50 W
Other models
AC: 110 – 120/
220 – 240 V 50/60 Hz 65 W
Power Voltage Indication
NOTE ON LEADING THE WIRE (FLAT TYPE)
•
In order to separate wire (flat type) from no shield portion of TC wire, stick filament tapes, as shown in a figure.
wire (flat type)
filament tape
head wire
TC wire (no shield portion)
main board
