CDX-GT50UMS/GT450U/GT457UE/GT500U/GT500US/GT505U
2
2. DIAGRAMS
For Schematic Diagrams.
Note:
• All capacitors are in
μ
F 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
speci
fi
ed.
•
f
: Internal component.
•
C
: Panel designation.
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
2
GND
1
VIN
VOUT
5
VOLTAGE
REFERENCE
3
STBY
NC
4
STANDBY
OVER CURRENT
PROTECTION
THERMAL
SHUTDOWN
+
–
•
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.
J
:
CD
F
:
FM
f
:
AM/MW
L
:
AUX
c
:
USB
• Abbreviation
AR :
Argentina
model
EA
: Saudi Arabia model
IND
: Indian model
MX
: Mexican model
RU
: Russian model
Note:
The components identi
fi
ed by mark
0
or dotted
line with mark
0
are critical for safety.
Replace only with part number speci
fi
ed.
