Philips DP-IF8000 Service Manual page 27

Waveforms (TX BOARD)
z
1 IC12 ua OSCO
2.5 Vp-p
24.576 MHz
VOLT/DIV : 1V AC
TIME/DIV : 50nsec
2
IC18 0 X2
3.4 Vp-p
8 MHz
VOLT/DIV : 1V AC
TIME/DIV : 50nsec
Note:
• All capacitors are in µF unless otherwise noted. pF: µµF
50 WV or less are not indicated except for electrolytics
and tantalums.
• All resistors are in Ω and
1
/ W or less unless otherwise
4
specified.
• : internal component.
f
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 MΩ).
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)
DP-IF8000
27