Service manual

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1999 CANON INC. CANON GP160 REV.0 FEB. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)

CHAPTER 13 TROUBLESHOOTING

13-172

Cause

• The line condition is poor and the image

signal can not be properly received.

• Malfunction due to CFR echo.

Countermeasure

(1) Raise the modem output level in #2 MENU

parameter 007, so the other party’s machine

can properly receive the image signal.

(2) Have the other party lower the other

machine’s transmission start speed.

(3) Adjust the NL equalizer in #2 MENU

parameter 005, so the other party’s

machine can properly receive the image

signal.

(1) Refer to #1 SSSW-SW03 for echo coun-

termeasures.

(2) Lower the modem output level in #2

MENU parameter 007, so the transmitted

CFR echo is not received.

##0103 [RX] EOL can not be detected for 5 seconds during reception

Cause

• The line condition is poor and the image

signal can not be properly received by the

other party’s machine.

• The other party’s machine malfunctions due

to echo.

Countermeasure

(1) Raise the modem output level in #2 MENU

parameter 007, so the other party’s machine

can properly receive the image signal.

(2) Lower the Tx start speed in user mode

system settings.

(3) Add an echo protect tone to the V29

modem signal in #1 SSSW-SW03 Bit 1.

(4) Have the other party ease the RTN trans-

mission conditions for their machine so

that RTN will not be transmitted by the

other party’s machine.

(5) Adjust the NL equalizer in #2 MENU para-

meter 005, so the other party’s machine

can properly receive the image signal.

(1) Refer to #1 SSSW-SW03 for echo coun-

termeasures

(2) When registering in autodial, add a long

pause after the telephone number so

there will be no response to the other

party’s first DIS.

(3) When calling manually, press the start

button after you have heard the other

party’s first DIS.

(4) Have the other party lower the output

level so the other party’s machine will not

receive echoes.

##0104 [TX] RTN or PIN received at time of transmission

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