Read Sony CDX-444RF Service Manual online
3
CDX-444RF
Ver 1.3
TABLE OF CONTENTS
SERVICING NOTES
..........................................................
2
1.
GENERAL
Location and Function of controls ..................................
4
Installation .......................................................................
8
Connections .....................................................................
9
2.
DISASSEMBLY
......................................................... 10
3.
MECHANISM DECK ASSEMBLY
................... 16
4.
MECHANICAL ADJUSTMENTS
....................... 18
5.
ELECTRICAL CHECK
.......................................... 19
6.
DIAGRAMS
6-1. Block Diagram – SERVO Section – .............................. 21
6-2. Block Diagram – MAIN Section – ................................ 22
6-3. Note for Printed Wiring Boards and
6-2. Block Diagram – MAIN Section – ................................ 22
6-3. Note for Printed Wiring Boards and
Schematic Diagrams ....................................................... 23
6-4. Printed Wiring Boards – RF/LSW Boards – ................. 24
6-5. Schematic Diagram – RF/LSW Boards – ...................... 25
6-6. Printed Wiring Boards
6-5. Schematic Diagram – RF/LSW Boards – ...................... 25
6-6. Printed Wiring Boards
– MAIN Board (Component Side) – .............................. 26
6-7. Printed Wiring Boards
– MAIN (Conductor Side)/SW Boards – ....................... 27
6-8. Schematic Diagram – MAIN Board (1/2) – .................. 28
6-9. Schematic Diagram – MAIN (2/2)/SW Boards – ......... 29
6-10. Printed Wiring Boards – FM Board – ............................ 30
6-11. Schematic Diagram – FM Board – ................................. 31
6-12. IC Pin Function Description ........................................... 35
6-9. Schematic Diagram – MAIN (2/2)/SW Boards – ......... 29
6-10. Printed Wiring Boards – FM Board – ............................ 30
6-11. Schematic Diagram – FM Board – ................................. 31
6-12. IC Pin Function Description ........................................... 35
7.
EXPLODED VIEWS
................................................ 37
8.
ELECTRICAL PARTS LIST
............................... 43
TEST DISC
This set can playback a CD-R, CD-RW for audio use. When test
this set, use the following test disc.
Test disc for CD-R: TCD-R082LMT (Part No.: J-2502-063-1)
this set, use the following test disc.
Test disc for CD-R: TCD-R082LMT (Part No.: J-2502-063-1)
Notes on CD-R discs
You can play CD-Rs (recordable CDs)
designed for audio use on this unit.
designed for audio use on this unit.
Look for this mark to
distinguish CD-Rs for audio use.
distinguish CD-Rs for audio use.
This mark denotes that a disc is
not for audio use.
not for audio use.
Some CD-Rs (depending on the equipment
used for its recording or the condition of
the disc) may not play on this unit.
used for its recording or the condition of
the disc) may not play on this unit.
You cannot play a CD-R that is not
finalized
finalized
*
.
*
A process necessary for a recorded CD-R disc to
be played on the audio CD player.
be played on the audio CD player.
power supply cord
(J-2502-058-2)
(J-2502-058-2)
compact disc changer
RF output cord
(J-2502-058-1)
(J-2502-058-1)
wirerd remote commander
JIG ON REPAIRING
When repairing this set, connect the jig (cord) for RF output ex-
tract (Part No. J-2502-058-1) and power supply (Part No. J-2502-
058-2) as the figure shown below.
tract (Part No. J-2502-058-1) and power supply (Part No. J-2502-
058-2) as the figure shown below.
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