27
DP-IF8000
2.5 Vp-p
24.576 MHz
3.4 Vp-p
8 MHz
1
z
Waveforms (TX BOARD)
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.
Note:
Note:
The components identi-
Les composants identifiés
fied by mark
0
or dotted par une marque
0
sont cri-
line with mark
0
are cri-
tiques pour la sécurité.
tical for safety.
Ne les remplacer que par
Replace only with part
une piéce portant le
number specified.
numéro spécifié.
•
A
: B+ Line.
•
H
: adjustment for repair.
• Power voltage is dc 9 V and fed with regulated dc power
supply from external power voltage jack.
• Voltages and waveforms are dc with respect to ground
under no-signal conditions.
no mark : LINE
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal produc-
tion tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
• Circled numbers refer to waveforms.
• Signal path.
J
: LINE (ANALOG)
c
: LINE (DIGITAL)
VOLT/DIV : 1V AC
TIME/DIV : 50nsec
VOLT/DIV : 1V AC
TIME/DIV : 50nsec
IC12
ua
OSCO
IC18
0
X2
2
Summary of Contents for DP-IF8000
Page 37: ...37 DP IF8000 ...
