27
27
HCD-U1BT
HCD-U1BT
• Circuit Boards Location
Note on Schematic Diagram:
• 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
specified.
•
f
: internal component.
•
2
: nonflammable resistor.
•
C
: panel designation.
•
A
: B+ Line.
• 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
tolerances.
– BT Board –
No mark: BLUETOOTH
– Other Board –
No mark: CD PLAY
*
: Impossible to measure
• Circled numbers refer to waveforms.
• Signal path.
F
: AUDIO
J
: CD
d
: TUNER
f
: USB
N
: BLUETOOTH
Note on Printed Wiring Boards:
•
X
: parts extracted from the component side.
•
Y
: parts extracted from the conductor side.
•
f
: internal component.
•
: Pattern from the side which enables seeing.
THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed in each block.)
SECTION 6
DIAGRAMS
B
These are omitted.
C
E
Q
C
B
These are omitted.
E
Q
• Indication of transistor.
Caution:
Parts face side: Parts on the parts face side seen from
(Side A) the parts face are indicated.
Pattern face side: Parts on the pattern face side seen from
(Side B) the pattern face are indicated.
• Lead Layouts
surface
CSP (Chip Size Package)
Lead layout of conventional IC
*
Replacement of IC8 on USB board and IC905 on BT board
requires a special tool.
• The voltage and waveform of CSP (chip size package) can-
not be measured, because its lead layout is different from
that of conventional IC.
• Abbreviation
CND
: Canadian model
KR
: Korean model
REG board
SW POWER board
DRIVER board
USB board
SMASTER board
MAIN board
BT board
SP board
HP board
PANEL board
ANT board
BD83S board
*
Replacement of IC8 on USB board and IC905 on BT board
requires a special tool.
Note:
The components identi-
fied by mark
0
or dot-
ted line with mark
0
are
critical for safety.
Replace only with part
number specified.
Note:
Les composants identifiés
par une marque
0
sont cri-
tiques pour la sécurité.
Ne les remplacer que par une
piéce por tant le numéro
spécifié.
w w w . x i a o y u 1 6 3 . c o m
Q Q 3 7 6 3 1 5 1 5 0
9
9
2
8
9
4
2
9
8
T E L
1 3 9 4 2 2 9 6 5 1 3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
