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CDX-GT420U/GT424U/GT427UE/GT470U/GT470US
CDX-GT420U/GT424U/GT427UE/GT470U/GT470US
25
25
For Schematic Diagrams.
Note:
• All capacitors are in
• 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.
• 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.)
(In addition to this, the necessary note is printed in each block.)
•
A : B+ Line.
•
B : B– Line.
•
H : adjustment for repair.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : FM
(
(
)
:
AM/MW/LW/SW
<
> : CD PLAY
*
: Impossible to measure
• Voltages are taken with a VOM (Input impedance 10 M
Ω).
Voltage variations may be noted due to normal production
tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal production
Voltage variations may be noted due to normal production
tolerances.
• Circled numbers refer to waveforms.
• Signal path.
J
: CD PLAY
F :
FM
f :
AM/MW/LW/SW
L :
AUX
c :
USB
• Abbreviation
EA
EA
: Saudi Arabian model
IND
: Indian model
MX
: Mexican model
RU :
Russian
model
For Printed Wiring Boards.
Note:
•
•
X : Parts extracted from the component side.
•
Y : parts extracted from the conductor side.
• a
:
Through
hole.
•
: Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
• Waveforms
– MAIN Board –
– MAIN Board –
• Indication of transistor.
• Abbreviation
EA :
EA :
Saudi
Arabian
model
IND :
Indian
model
MX :
Mexican
model
RU :
Russian
model
Caution:
Pattern face side:
(SIDE B)
Parts face side:
(SIDE A)
Pattern face side:
(SIDE B)
Parts face side:
(SIDE A)
Parts on the pattern face side seen from
the pattern face are indicated.
Parts on the parts face side seen from
the parts face are indicated.
the pattern face are indicated.
Parts on the parts face side seen from
the parts face are indicated.
C
B
These are omitted.
E
Q
C E
B
These are omitted.
These are omitted.
C B
E
1.1 Vp-p
8.664 MHz
0.7 Vp-p
32.768 kHz
1.5 Vp-p
11.06 MHz
0.2 V/DIV, 10
μsec/DIV
0.5 V/DIV, 0.1
μsec/DIV
0.5 V/DIV, 0.1
μsec/DIV
IC50 (XTI)
IC501 (XIN)
IC501 RH (OSC IN)
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.
Ver. 1.1
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