CDX-GT52UM/GT470UE/GT470UM/GT472UE/GT472UM/GT474UM/GT520U/GT525U
CDX-GT52UM/GT470UE/GT470UM/GT472UE/GT472UM/GT474UM/GT520U/GT525U
3232
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.
•
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.)
• A : B+ Line.
• Power voltages is dc 14.4V and fed with regulated dc
power supply from ACC and BATT cords.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark
: TUNER (FM)
< > : CD PLAY
*
: Impossible to measure
• Voltages are taken with VOM (Input impedance 10 M).
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
tolerances.
• Circled numbers refer to waveforms.
• Signal path.
F : AUDIO
f : TUNER
J : CD
d : USB
E : AUX
• Abbreviation
AR : Argentina model
CND : Canadian model
EA : Saudi Arabia model
IND : Indian model
KR : Korean 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.
•
f
: Internal component.
• : Pattern from the side which enables seeing.
(The other layers’ patterns are not indicated.)
Note:
The components identi-
fi ed by mark 0 or dotted
line with mark 0 are criti-
cal for safety.
Replace only with part
number specifi ed.
Note:
Les composants identifi és
par une marque 0 sont
critiques pour la sécurité.
Ne les remplacer que par
une pièce portant le nu-
méro spécifi é.
• Indication of transistor.
C
B
These are omitted.
E
Q
Caution:
Pattern face side:
(Conductor Side)
Parts face side:
(Component Side)
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.
• Waveforms
– MAIN Board –
Note: When the complete MAIN board is replaced, the destination
setting is necessary. Refer to “NOTE THE MAIN BOARD OR
SYSTEM CONTROLLER (IC501) REPLACING” on page 4.
Note: When the complete MAIN board replaced, the destination set-
ting is necessary. Refer to “NOTE THE MAIN BOARD OR
SYSTEM CONTROLLER (IC501) REPLACING” on page 4.
1
IC1300 1 (BST)
5 V/DIV, 1 Ps/DIV
2.46 Ps
18.2 Vp-p
3
IC501 qa (OSCOUT)
1 V/DIV, 50 ns/DIV
126.5 ns
3.6 Vp-p
2
IC501 9 (XOUT)
1 V/DIV, 20 Ps/DIV
30.4 Ps
2.6 Vp-p
4
IC701 yj (XO)
1 V/DIV, 20 ns/DIV
59 ns
3.7 Vp-p
5
IC601 <zc/ (XO)
500mV/DIV, 50 ns/DIV
83 ns
1.1 Vp-p
• Abbreviation
AR : Argentina
model
CND : Canadian model
EA : Saudi Arabia model
IND : Indian model
KR : Korean model
MX : Mexican model
RU : Russian model
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