3-2. SCHEMATIC DIAGRAM • Refer to page 9 for IC Block Diagrams.
IT-B9
– 7 –
– 8 –
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.
•
C
: panel designation.
•
U
: B+ Line.
• Power voltage is dc 12 V and fed with regulated dc power
supply from JP1 with 100
Ω
in series.
• Voltage is dc with respect to ground under no-signal
condition.
no mark : OFF HOOK
(
) : ON HOOK
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal produc-
tion tolerances.
• Signal path.
N
: RX
O
: TX
• Abbreviation
CND : Canadian model.
CAUTION
FOR CONTINUED PROTECTION AGAINST FIRE, RE-
PLACE ONLY WITH SAME TYPE SAME RATING FUSE.
REFER TO SERVICE PERSONNEL. (0.5A/125V)
