Canon 2478A002 manual Troubleshooting

7.Troubleshooting

Problem		Probable Cause	Solution	Pa g e
Soon after thc power is turned		If t h e power is tur n ed on a n d the ST - E2 i s no t	Either press the shutter button halfway or press	24
on, the indicator lamp turns on'		used for 9 0 scc., the power turns off automatically.	the < PILOT > button.
Although t h e 5 icon i s lit in		Th e 5 ]con in t h e v ~ e w f i n d edoesr not indicate	When the slave is ready to fire, ~ t sA12-assist beam	27
t h e viewfinder, t h e slave does		flash ready. Rather. it indicates tha t the ST-E2 is	emltter blinks
not fire.		able to tra n sm~t .
T h e f la s h p i c t u r e	c n m c o u t	The flash ratio control lamp was lit even thouph a	Turn off the flash ratio control lamp bcforc takinp	2 9
undrrexposed		multi-flash system with flash ratio settings was	the picturr~.
		not used.
		'The subject is beyond the effective flash range.	Place the slave nearer to the suhect or use 3 larg-	28
			c r aperture (smaller f-number).
T h e s l a v e d ~ ~ nclts	f ir e evcn	'I'hc s l ~ i v r ' schannel does not lnatcli the ST - E2's	Set thr slavc to thesamechannel as thr ST-E2.	25
when the sl~ utt< .i,~ .~rrlra.;ed.		oh;~nnrl .
		T l ~ sl;~veris tor^ far away from thc ST-E2.	osition t h e slavc nearer to the ST-E2 :ind tcst
			the transmission befirrc taking the picture.
		'Thu sl;~vcis r ~ r ,t l ~ sider or hack of thr c:lmr,r;l.	Use On'-(:amera Shoe Cord 2 (solrl separatrlyl and	33
			point the ST-E2's trtlnsmitter toward the slave.
		'l'hc Speedlite's slave sr,nsar I S not pmperly point-	Use thc RSOEX's bounce feature trl point its sI;~vc	26
		c.d 3t L ~ STC -E2.	sensor townrd the ST-EZ.
		'l'hc Ilr~shratio h:lu Ihcrr~srt , hut thc slave ID has	Set thc slave 11) to A or B.	:3	1
		hrrn set to C.
T h e ST - EP do e s not enlit th<.		1'Iic, r;~rner;lis not ; I I ~KOS-3.	If thc EOS camcra has a built-in AF-assist beam.	28
XF-assist beam.			the camera will rmit the beam instead of t he ST-
			E2.
Th e slave's flash - rcady indica.		The, sla\.e is in the SE mode.	Press the ST-E2's < PILOT > button to cancel the	28
tor ( b l i nking AF -a s s i st beam I			slave's S E mode.
turns off.
The test transmission does not		You prcssrd the shu t ter button halfway and this	Make sure the metering display in the viewfinder	28
work.		activ;~tedthe exposure meter	is off Then test the transmission.
The flash ratlo cannot be set.		T h r camera is not an EOS-3.	The flash ratio cannot he set with cameras other	-
			than the EOS-3.
		The ST-E2's main switch is set to <HOLD>.	Set the main switch to < I 1.	24