Canon ImageCLASS MF4690, Service Manual

Page: 167 / 182

Chapter 14
14-27
14.13.2 DRAM Test
14.13.2.1 D-RAM Test<(1) D-RAM TEST>
0016-2126
D-RAM Test((1) D-RAM)
Press the numeric keypad key 1 on the test mode menu to select the D-DRAM test.
Press numeric keypad keys 1 and 2 during the D-DRAM test to carry out the individual tests described below.
Numeric keypad key 1
Checks to see if data can be correctly written to and read from all areas of D-RAM (SDRAM). If an error occurs making this check, the test is aborted, with an
(1) RELAY TEST [1] - [2]
(1) RELAY TEST 1 NCU relay (and switch) ON/OFF test
(2) RELAY TEST 2 230 V common NCU test
(2) FREQ TEST [0] - [6] Frequency test
(0) FREQ TEST 462Hz
(1) FREQ TEST 1100Hz
(2) FREQ TEST 1300Hz
(3) FREQ TEST 1500Hz
(4) FREQ TSST 1650Hz
(5) FREQ TEST 1850Hz
(6) FREQ TEST 2100Hz
(4) G3 SIGNAL TX TEST [0] - [8] G3 signal transmission test
(0) G3 SIGNAL TX TEST 300bps
(1) G3 SIGNAL TX TEST 2400bps
(2) G3 SIGNAL TX TEST 4800bps
(3) G3 SIGNAL TX TEST 7200bps
(4) G3 SIGNAL TX TEST 9600bps
(5) G3 SIGNAL TX TEST TC7200bps
(6) G3 SIGNAL TX TEST TC9600bps
(7) G3 SIGNAL TX TEST 12000bps
(8) G3 SIGNAL TX TEST 14400bps
(5) DTMF TEST [0] - [9], * , # DTMF transmission test
(0) G3 SIGNAL TX TEST 300bps
(1) G3 SIGNAL TX TEST 2400bps
(2) G3 SIGNAL TX TEST 4800bps
(3) G3 SIGNAL TX TEST 7200bps
(4) G3 SIGNAL TX TEST 9600bps
(5) G3 SIGNAL TX TEST TC7200bps
(6) G3 SIGNAL TX TEST TC9600bps
(7) G3 SIGNAL TX TEST 12000bps
(8) G3 SIGNAL TX TEST 14400bps
(9) G3 SIGNAL TX TEST TC9600bps
(*) G3 SIGNAL TX TEST 12000bps
(#) G3 SIGNAL TX TEST 14400bps
(6) MODEM TEST Tonal sign reception test
(8) G3 V.34 Tx TEST V34 G3 signal transmission test
(9) Not used
(5) AGING TEST Not used
(6) FUNCTION TEST [1] - [9]
(1) FUNCTION TEST G3 4800bps G3 4800 bps signal transmission test
(3) 6-3 SENSOR [1] - [8] Sensor checks
(1) CRG ON FCV ON ALS [of of of]
(2) PW of PW2 of
(3) DS of DES of HPS of
(4) TN Value 125 USB memory of
(5) CRG ON FCV ON ALS [of of of]
(6), (7), (8) Not used
(4) ADF FEED TEST ADF delivery operation test
(5) BOOK FEED TEST Book copy operation test
(6) 6-6 SPEAKER FREQ:[1] VOL:[2] Speaker volume and buzzer frequency test
(7) Operation Panel Operation panel key, LCD and LED test
(8) FUNCTION TEST LAMP TEST ALL Lamp test
(9) LINE TEST [1] - [3] Line signal reception test
(0) ROLLER CLEAN 0:PRT 1:ADF Printer and ADF roller cleaning
(0) PRT ROL CLEAN Press start key Not used
(1) ADF ROL CLEAN Press start key
Numerals enclosed in parentheses denote a numeric keypad key to be pressed each.
Group Subgroup Item 1 Item 2 Item 3 Explanation