Read Sony ICF-CD553RM Service Manual online
3
ICF-CD553RM
TABLE OF CONTENTS
1.
SERVICING NOTES
..............................................
3
2.
GENERAL
..................................................................
4
3.
DISASSEMBLY
3-1. Disassembly Flow ...........................................................
5
3-2. CD Lid, Cabinet (Upper) ................................................
5
3-3. CD Tray Assy ..................................................................
6
3-4. CD Tray (Lower) .............................................................
6
3-5. Optical Pick-up Block (KSM-900AAA) ........................
7
3-6. Optical Pick-up (KSS-900A) ..........................................
7
4.
TEST MODE
.............................................................
8
5.
ELECTRICAL ADJUSTMENTS
Tuner Section ................................................................. 11
CD Section ..................................................................... 13
CD Section ..................................................................... 13
6.
DIAGRAMS
6-1. Block Diagram – CD Section – .................................... 14
6-2. Block Diagram – TUNER Section – ............................ 15
6-3. Block Diagram – MAIN Section – ............................... 16
6-4. Note for Printed Wiring Boards and
6-2. Block Diagram – TUNER Section – ............................ 15
6-3. Block Diagram – MAIN Section – ............................... 16
6-4. Note for Printed Wiring Boards and
Schematic Diagrams ....................................................... 17
6-5. Printed Wiring Boards – CD Section – ........................ 18
6-6. Schematic Diagram – CD Section – ............................. 19
6-7. Printed Wiring Board – TUNER Section – .................. 20
6-8. Schematic Diagram – TUNER Section – ..................... 21
6-9. Printed Wiring Board – MAIN Section – ..................... 22
6-10. Printed Wiring Boards – PANEL Section – ................. 23
6-11. Schematic Diagram – MAIN Section (1/2) – ............... 24
6-12. Schematic Diagram – MAIN Section (2/2) – ............... 25
6-13. Printed Wiring Boards – AMP/TRANS Boards – ........ 26
6-14. Schematic Diagram – AMP/TRANS Boards – ............ 27
6-6. Schematic Diagram – CD Section – ............................. 19
6-7. Printed Wiring Board – TUNER Section – .................. 20
6-8. Schematic Diagram – TUNER Section – ..................... 21
6-9. Printed Wiring Board – MAIN Section – ..................... 22
6-10. Printed Wiring Boards – PANEL Section – ................. 23
6-11. Schematic Diagram – MAIN Section (1/2) – ............... 24
6-12. Schematic Diagram – MAIN Section (2/2) – ............... 25
6-13. Printed Wiring Boards – AMP/TRANS Boards – ........ 26
6-14. Schematic Diagram – AMP/TRANS Boards – ............ 27
7.
EXPLODED VIEWS
7-1. Cabinet (Upper) Section ................................................. 34
7-2. Cabinet (Front) Section ................................................... 35
7-3. Cabinet (Lower) Section ................................................. 36
7-4. MAIN Board Section ...................................................... 37
7-5. CD Tray Assy Section ..................................................... 38
7-6. Optical Pick-up Section (KSM-900AAA) ..................... 39
7-2. Cabinet (Front) Section ................................................... 35
7-3. Cabinet (Lower) Section ................................................. 36
7-4. MAIN Board Section ...................................................... 37
7-5. CD Tray Assy Section ..................................................... 38
7-6. Optical Pick-up Section (KSM-900AAA) ..................... 39
8.
ELECTRICAL PARTS LIST
.............................. 40
SECTION 1
SERVICING NOTES
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.
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.
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.
NOTES ON HANDLING THE OPTICAL PICK-UP
BLOCK OR BASE UNIT
BLOCK OR BASE UNIT
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
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
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.
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.
It is best to use only unleaded solder but unleaded solder may
also be added to ordinary solder.
HOW TO IDENTIFY WHITE MODEL
There are two types of WHITE model in this set. Before perform-
ing the repair, make sure which type it is, following the how to
identify mentioned below.
ing the repair, make sure which type it is, following the how to
identify mentioned below.
Ver. 1.3
BLUE
: TYPE 1
ORANGE : TYPE 2
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