Canon PC300 Service Manual page 30

OPERATIONS AND TIMING
G. Inputs to DC Controller
i. Inputs to DC Controller (1/2)
DC controller/DC power supply PCB
Door switch Delivery door switch
|
|
SW1 Sw2 |
AC power i
supply '
|
|
|
|
Density |
correction |
switch |
(PC320/325/ 202
FC230 only; 3 cept
see p. 3-20) | DGT 2 Oscillation signal (output)
\ Press on any key or density
| KEYR ") corection switch allows input
a of oscillation signal
KEYR 3," (p¢320/325/FC230 only)
——< DGT 0
Oscillation signal (output;
8 PC320/325/FC230 only)
< DGT
Power switch ee 601 202;
[a5 /Swen4 ~14{-10) 9-8) ear oe :
*PWSON When '0', power switch goes ON
"i | 5y
+
Densit
acjusitnent Turning density adjustment dial varies
dial/lever voltage (turn to darken brings it.closer to OV)
|
Control panel PCB
Note: The pin No. in parentheses refers
to the PC300/FC210.
Figure 3-3
COPYRIGHT © 1994 CANON INC. CANON PC300920/926, FC210/230 REV.O JULY 1994: PRINTED IN JAPAN (IMPRIME AU JAPON) 3-3