Servicing Notes - Sony HCD-AZ33D Service Manual

HCD-AZ33D
Ver. 1.2
NOTES ON HANDLING THE OPTICAL PICK-UP
BLOCK OR BASE UNIT
The laser diode in the optical pick-up block may suffer electrostat-
ic 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 fl exible 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 refl ective surface by the objective lens in the optical
pickup block. Therefore, when checking the laser diode emission,
observe from more than 30 cm away from the objective lens.
UNLEADED SOLDER
Boards requiring use of unleaded solder are printed with the lead-
free mark (LF) indicating the solder contains no lead.
(Caution: Some printed circuit boards may not come printed with
the lead free mark due to their particular size)
: LEAD FREE MARK
Unleaded solder has the following characteristics.
• Unleaded solder melts at a temperature about 40 °C higher
than ordinary solder.
Ordinary soldering irons can be used but the iron tip has to be
applied to the solder joint for a slightly longer time.
Soldering irons using a temperature regulator should be set to
about 350 °C.
Caution: The printed pattern (copper foil) may peel away if the
heated tip is applied for too long, so be careful!
• Strong viscosity
Unleaded solder is more viscou-s (sticky, less prone to fl ow)
than ordinary solder so use caution not to let solder bridges
occur such as on IC pins, etc.
• Usable with ordinary solder
It is best to use only unleaded solder but unleaded solder may
also be added to ordinary solder.
RELEASING THE DISC SLOT LOCK
The disc slot lock function for the antitheft of an demonstration
disc in the store is equipped.
Releasing Procedure:
` 1
1. Press [ / ] button to turn the power on.
2. Touch the [DVD] sensor to select the "DVD"
x
3. Touch the [ ] sensor and press the [
and hold down until "UNLOCKED" displayed on the fl uores-
cent indicator tube (around 5 seconds).
" "
Note: When
LOCKED is displayed, the slot lock is not released by
turning power on/off with the
NOTE THE IC103 ON THE DMB17 BOARD REPLAC-
ING
When IC103 on the DMB17 board is damaged, exchange the new
DMB17 board for the DMB17 board which IC103 damaged.
4
SECTION 1

SERVICING NOTES

Z
] button simultaneously
[`/1]
button.
MODEL IDENTIFICATION
– Back Panel –
Model
240V AC area in E and
Iranian models
220V – 240V AC area in E and
220V – 230V AC area in E models
Philippines model
Singapore model
Australian model
AEP model
Thai model
PART No.
Part No.
3-094-929-0[]
3-094-929-1[]
3-094-929-2[]
3-094-929-4[]
3-094-929-5[]
3-094-929-6[]
3-094-929-7[]