Canon CANOSCAN FB330 series Service Manual page 140

II. GENERAL CIRCUIT DIAGRAM (CanoScan FB630U/FB636U)
Contact
image sensor
Button PCB
A - 2
CS1
M1
Scanning unit
drive motor
J3
1 Vob
2 NC
3 AGND
4 Vcis
5 Vref
6 TR
7 PH1
8 Vcc
9 B
10 G
11 R
12 GND
13 GND
14 PA+
15 PA-
16 PB+
17 PB-
Main PCB
J2
1 HMSEN
2 GND
3 VCC
4 BTON
J1
1 +5V
2 D-
3 D+
4 GND
COPYRIGHT © 1999 CANON INC. CANOSCAN FB330/FB630 SERIES REV.0 OCT. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)