WX-GT90BT/GT90BTE/GT99BT
WX-GT90BT/GT90BTE/GT99BT
28
28
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.)
•
A
: B+ Line.
•
B
: 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
h
:
SIRIUS/XM
E
:
AUX
a
: Bluetooth
• Abbreviation
CND : Canadian model
IND
: Indian 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 speci
fi
ed.
Note:
Les composants identi
fi
és
par une marque
0
sont
critiques pour la sécurité.
Ne les remplacer que par
une pièce portant le nu-
méro spéci
fi
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 –
1
IC1300
1
(BST)
5 V/DIV, 1
P
s/DIV
2.46
P
s
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, 10
P
s/DIV
30.4
P
s
2.6 Vp-p
4
IC701
yj
(XO)
1 V/DIV, 20 ns/DIV
59 ns
3.7 Vp-p
5
IC601
<zc/
(XO)
500 mV/DIV, 50 ns/DIV
83 ns
1.1 Vp-p
• Abbreviation
CND : Canadian model
IND
: Indian model
RU
: Russian model
Note 1:
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 1:
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 2:
When the complete BT board or complete MAIN board (in-
cluding BT board) is replaced, it is necessary to con
fi
rm op-
eration. Refer to “BLUETOOTH FUNCTION CHECKING
METHOD USING A CELLULAR PHONE” on page 8.
Note 2:
When the complete BT board or complete MAIN board (in-
cluding BT board) is replaced, it is necessary to con
fi
rm op-
eration. Refer to “BLUETOOTH FUNCTION CHECKING
METHOD USING A CELLULAR PHONE” on page 8.
Содержание WX-GT90BT
Страница 61: ...MEMO WX GT90BT GT90BTE GT99BT 61 ...
