Sony CDX-GT450U Service Manual page 42

CDX-GT50UMS/GT450U/GT457UE/GT500U/GT500US/GT505U
2. DIAGRAMS
THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed in each block.)
For Printed Wiring Boards.
Note:
• X : Parts extracted from the component side.
• Y : Parts extracted from the conductor side.
• : Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
• Abbreviation
AR : Argentina model
EA : Saudi Arabia model
IND : Indian model
MX : Mexican model
RU : Russian model
• IC Block Diagram
– MAIN Board –
IC402 BU33TD3WG-TR
VIN 1
VOLTAGE
REFERENCE
OVER CURRENT
PROTECTION
GND 2
THERMAL
SHUTDOWN
STANDBY
STBY 3
2
Downloaded from www.Manualslib.com
–
+
5 VOUT
4 NC
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For Schematic Diagrams.
Note:
• All capacitors are in μF unless otherwise noted. (p: pF) 50
WV or less are not indicated except for electrolytics and
tantalums.
• All resistors are in Ω and 1/4 W or less unless otherwise
specifi ed.
• : Internal component.
f
• C : Panel designation.
Note: The components identifi ed by mark 0 or dotted
line with mark 0 are critical for safety.
Replace only with part number specifi ed.
• A : B+ Line.
• Voltages are dc with respect to ground under no-signal
(detuned) conditions.
no mark : FM
( ) : AM/MW
< > : CD PLAY
• Voltages are taken with VOM (Input impedance 10 M).
Voltage variations may be noted due to normal production
tolerances.
• Signal path.
: CD
J
: FM
F
: AM/MW
f
: AUX
L
: USB
c
• Abbreviation
AR : Argentina model
EA : Saudi Arabia model
IND : Indian model
MX : Mexican model
RU : Russian model