HT-CT780
HT-CT780
35
35
7.8
P
s
12 Vp-p
wa
Q802 (BASE)
5 V/DIV, 5
P
s/DIV
20.8
P
s
3.4 Vp-p
2
IC303
qk
(LRCK)
1 V/DIV, 10
P
s/DIV
3
IC303
ql
(BCK)
1 V/DIV, 200 ns/DIV
324 ns
3.7 Vp-p
5
IC303
r;
(XTO)
1 V/DIV, 20 ns/DIV
40.6 ns
2.6 Vp-p
qd
IC603
3
(SW1)
2 V/DIV, 1
P
s/DIV
8.2 Vp-p
qf
IC603
qf
(SW2)
2 V/DIV, 1
P
s/DIV
1.6
P
s
8.3 Vp-p
qs
IC601
1
(BOOT)
5 V/DIV, 1
P
s/DIV
3
P
s
20.2 Vp-p
qa
IC602
1
(BOOT)
5 V/DIV, 1
P
s/DIV
3
P
s
20.6 Vp-p
9
IC313
1
(BOOT)
5 V/DIV, 2
P
s/DIV
2.9
P
s
21 Vp-p
6
IC308
qd
(XTAL)
1 V/DIV, 20 ns/DIV
39.4 ns
3.8 Vp-p
q;
IC102
ua
(X1)
1 V/DIV, 100 ns/DIV
250 ns
3.4 Vp-p
7
IC308
y;
(BCLK_OUT)
1 V/DIV, 200 ns/DIV
324 ns
4.4 Vp-p
20.8
P
s
3.6 Vp-p
8
IC308
ya
(LRCLK_OUT)
1 V/DIV, 10
P
s/DIV
4
IC303
w;
(SCKO)
1 V/DIV, 20 ns/DIV
40.4 ns
3.1 Vp-p
1
IC1501
<zzc
(XTALOUT)
1 V/DIV, 20 ns/DIV
37.4 ns
2.4 Vp-p
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.
•
2
: Non
fl
ammable resistor.
•
5
: Fusible resistor.
•
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.
• Voltages and waveforms are dc with respect to ground
under no-signal conditions.
no mark : POWER ON
*
: 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
(ANALOG)
J
:
AUDIO
(DIGITAL)
E
:
VIDEO
N
:
Bluetooth
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.)
Caution:
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.
• 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.
• MAIN board is multi-layer printed board. However, the
patterns of intermediate layers have not been included in
diagrams.
• Waveforms
– MAIN Board –
– FL Board –
Note 1:
When the complete MAIN board is replaced, refer
to “NOTE OF REPLACING THE IC503 ON THE
MAIN BOARD AND THE COMPLETE MAIN
BOARD” and “NOTES ON THE WIRELESS CON-
NECTION (LINK) AFTER REPAIRS ARE COM-
PLETE” on page 5.
Note 2:
When the complete POWER board is replaced, refer
to “BOND FIXATION OF ELECTRIC PARTS” on
page 6.
Note 1:
When the complete MAIN board is replaced, refer
to “NOTE OF REPLACING THE IC503 ON THE
MAIN BOARD AND THE COMPLETE MAIN
BOARD” and “NOTES ON THE WIRELESS CON-
NECTION (LINK) AFTER REPAIRS ARE COM-
PLETE” on page 5.
Note 2:
When the complete POWER board is replaced, refer
to “BOND FIXATION OF ELECTRIC PARTS” on
page 6.
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.
Note:
Les composants identi
fi
és par une marque
0
sont critiques pour la sécurité.
Ne les remplacer que par une piéce portant
le numéro spéci
fi
é.
Ver. 1.1
Содержание HT-CT780
Страница 21: ...HT CT780 21 2 15 SERVICE POSITION MAIN board POWER board ...
Страница 77: ...MEMO HT CT780 77 ...
