CDX-GT660UE, CDX-GT660UP, CDX-GT660UV, CDX-GT662UE, CDX-GT710UV, CDX-GT717UV — Sony Car Audio Service Manual (repair manual). Page 3

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CDX-GT660UE/GT660UP/GT660UV/GT662UE/GT710UV/GT717UV
3
1. 
SERVICING  NOTES
  .............................................   3
2. GENERAL
  ..................................................................   7
3. DISASSEMBLY
3-1. Disassembly 
Flow 
...........................................................  11
3-2.   Cover ...............................................................................   11
3-3.  Panel (Sub) Block ...........................................................   12
3-4.  CD Mechanism Deck (MG-101CA-188) .......................   12
3-5. MAIN 
Board 
...................................................................  13
3-6. SERVO 
Board 
.................................................................  14
3-7.  Chassis (T) Sub Assy ......................................................   15
3-8. Roller 
Arm 
Assy 
..............................................................  15
3-9. Chassis 
(OP) 
Assy 
...........................................................  16
3-10.  Chucking Arm Sub Assy .................................................   16
3-11. Sled Motor Assy 
..............................................................   17
3-12.  Optical Pick-up Section ..................................................   17
3-13. Optical Pick-up ...............................................................   17
4. DIAGRAMS
4-1.  Block Diagram - SERVO Section - ................................   18
4-2.  Block Diagram - MAIN Section - ...................................   19
4-3. Block 
Diagram 
- PANEL, POWER SUPLLY Section - ...........................   20
4-4.  Printed Wiring Board - MAIN Section (1/2) 
(CDX-GT660UE/GT660UP/GT660UV/GT662UE/
GT710UV: E, Mexican/GT717UV) - .............................   22
4-5.  Printed Wiring Boards - MAIN Section (2/2) 
(CDX-GT660UE/GT660UP/GT660UV/GT662UE/
GT710UV: E, Mexican/GT717UV) - .............................   23
4-6.  Printed Wiring Board - MAIN Section (1/2) 
(CDX-GT710UV: Saudi Arabia model) - .......................   24
4-7.  Printed Wiring Boards - MAIN Section (2/2) 
(CDX-GT710UV: Saudi Arabia model) - .......................   25
4-8.  Schematic Diagram - MAIN Section (1/4) - ...................   26
4-9.  Schematic Diagram - MAIN Section (2/4) - ...................   27
4-10.  Schematic Diagram - MAIN Section (3/4) - ...................   28
4-11.  Schematic Diagram - MAIN Section (4/4) - ...................   29
4-12.  Printed Wiring Board - SUB Board - ..............................   30
4-13.  Schematic Diagram - SUB Board - .................................   30
4-14.  Printed Wiring Board - KEY Board -..............................   31
4-15.  Schematic Diagram - KEY Board - ................................   32
5. 
EXPLODED  VIEWS
5-1. Main 
Section 
...................................................................  42
5-2.  Front Panel Section .........................................................   43
5-3.  CD Mechanism Section (MG-101CA-188) ....................   44
6. 
ELECTRICAL  PARTS  LIST
  ..............................   45
Accessories are given in the last of the electrical parts list.
TABLE  OF  CONTENTS
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 fl exible board is easily damaged and should be handled with 
care.
NOTES  ON  LASER  DIODE  EMISSION  CHECK
Never look into the laser diode emission from right above when 
checking it for adjustment. It is feared that you will lose your sight.
If the optical pick-up block is defective, please replace the whole 
optical pick-up block.
Never turn the semi-fi xed resistor located at the side of optical 
pick-up block.
optical pick-up
semi-fixed resistor
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 viscous (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.
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