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27
27
HCD-HP7
THIS NOTE IS COMMON FOR PRINTED WIRING
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed
in each block.)
For schematic diagrams.
Note:
• All capacitors are in
µ
F unless otherwise noted. pF:
µµ
F
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.
•
1
: fusible resistor.
•
C
: panel designation.
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.
•
A
: B+ Line.
•
B
: B– Line.
• V oltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
∗
: Impossible to measure
• V oltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal produc-
tion tolerances.
• W aveforms are taken with a oscilloscope.
• W aveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
• Circled numbers refer to waveforms.
• Signal path.
F
: TUNER
J
: CD
L
: MD
E
: PB (TAPE)
a
: REC (TAPE)
c
: DIGITAL OUT
• A bbreviation
AUS
: Australian model.
CND : Canadian model.
E2
: 120 V AC area in E model.
E3
: 220-240 V AC area in E model.
KR
: Korean model.
MX
: Mexican model.
RU
: Russian model.
TH
: Thai model.
TW
: Taiwan model.
• Indication of transistor
B
These are omitted.
C
E
Q
C
B
These are omitted.
E
Q
• Waveforms
– BD Board –
– PANEL Board –
Caution:
Pattern face side:
Parts on the pattern face side seen from
(Conductor Side)
the pattern face are indicated.
Parts face side:
Parts on the parts face side seen from
(Component Side)
the parts face are indicated.
Note:
The components identi-
fied by mark
0
or dotted
line with mark
0
are criti-
cal for safety.
Replace only with part
number specified.
Note:
Les composants identifiés par
une marque
0
sont critiques
pour la sécurité.
Ne les remplacer que par une
piéce por tant le numéro
spécifié.
B
These are omitted.
C
E
Q
– MAIN Board –
B
C
E
These are omitted.
Содержание CMT-HP7 - Executive Microsystem
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