ICF-CD543RM - Sony Audio Service Manual (repair manual). Page 3

Read Sony ICF-CD543RM Service Manual online

3
ICF-CD543RM
panel (front)
MEGA BASS : Original Type, Silver Type
LIV
: Liv Type
About CD-Rs/CD-RWs
This unit is compatible with CD-Rs/CD-RWs but
playback capability may vary depending on the
quality of the disc, the recording device and
application software.
SECTION  1
SERVICING  NOTES
 
MODEL NO.     ICF-CD543RM
US, Canadian models: AC: 120 V     60 Hz 15 W
AEP model: AC: 220 – 230 V     50 Hz 15 W
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.
MODEL  IDENTIFICATION  – Top View –
NOTES  ON  HANDLING  THE  OPTICAL  PICK-UP
BLOCK  OR  BASE  UNIT
ABOUT  THE  TYPE  OF  THE  US  MODEL
There are three types of US model.
Please look at the mark of set shown below.
NOTE  OF  REPLACING  THE  IC401 (LCD  BOARD),  IC701
(CD  BOARD)  AND  CD  BOARD
In this set, the IC401 mounted on the LCD board has been changed
in the midway of production.
The IC701 mounted on the CD board has been changed along with it.
Perform after confirming which type set when you replace the
IC401 mounted on the LCD board, IC701 mounted on the CD
board and CD board because there is a suited combination.
• Combination
Type
IC401 (LCD board)
IC701 (CD board) CD board
A
6-801-332-01   IC
6-701-617-01   IC
A-3347-089-A
µ
PD789477GC-A16-8BT
LC78645NE-U-E
B
6-802-066-01   IC
6-701-796-01   IC
A-1132-708-A
µ
PD789477GC-A20-8BT
LC78646E-US-E
6-805-644-01   IC
µ
PD789477GC-A52-8BT-A
6-805-645-01   IC
µ
PD789477GC-A53-8BT-A
6-805-646-01   IC
µ
PD789477GC-A54-8BT-A
• Discrimination
Distinguish by the type name printed on IC401 (LCD board) and
IC701 (CD board).
– LCD board (Conductor Side) –
– CD board (Conductor Side) –
OPTICAL  PICK-UP  BLOCK  DISCRIMINATION
In this set, the optical pick-up block has been changed from KSM-
213RCP to KSM-213CCP.
When replacing the optical pick-up block, perform after confirm-
ing which optical pick-up block.
KSM-213RCP
KSM-213CCP
IC401
IC701
Stamping for KSM-213RCP
Stamping for KSM-213CCP
Ver. 1.3
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 flow)
than ordinary solder so use caution not to let solder bridges oc-
cur 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.
Page of 57
Display

Click on the first or last page to see other ICF-CD543RM service manuals if exist.