COPYRIGHT © 1997 CANON INC. CANON NP6045 REV. 1 MAR. 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)CHAPTER 10 TROUBLESHOOTING10-130G. Variable Resistors, Light-Emitting Diodes, and Check Pins byPCBOf the variable resistors (VR), light-emitting diodes (LED), and check pins found,those that may be used in the field are discussed:Caution:1.Some LEDs emit dim light because of leak current when OFF; this is a normalcondition and should be kept in mind.2. VRs that may be used in the field............VRs that must not be used in the field.....Caution:Do not use VRs and check pins not given in the list; they are for the factory onlyand require special instruments and high precision.1. DC Controls PCBFigure 10-610J112 J111J109 J110 J108SW101J107J106J105J104VR101J103J102J101J124J122J121J126J128J123J119J117J130J113J114J115J129J116A1B12A12B1A1B9 B1A9J12512 1B15 B1A1 A15B1 B20A20 A1B10 B1A1 A10A1A9B9A1A1A11B11B1A1A8B8B1A1A10 B1B10A1A9B9B181A8 A1B1 B8A15 A1B15B18 1 9 1 1 2A12 A1B1 B12B1 B15A15 A1A13 A1B1 B13B14B1 A14A1B13B1 A13A11 2B15B1 A15A1B1B14 A1A1417J1271 21 2
