MikroTik CRS226-24G-2S+IN Setup guide

Repair instruction

Published January 5, 2016



These repair instructions are for NON WARRANTY repairs only!

Please make visual inspection for signs of corrosion

or mechanical damages before starting

Contents

List of Cloud Router Switch CRS226-24G-2S+ series......................................................3

Disassemblin information.................................................................................................4



Block dia ram of Cloud Router Switch CRS210-8G-2S+ series.....................................5

Routerboard does not power on........................................................................................6









Routerboard does not boot...............................................................................................14

 !"# 

$%#"# !!#!%&'( !

## )

Problems with ether ports.................................................................................................16

*!+,,,-*!.*!/0

'('(01

Temperature and Volta e monitor or LCD does not work.............................................21

Console does not work.....................................................................................................22

2 Latest Checking procedure for over voltage damage available at www.mikrotik.com

List of Cloud Router Switch CRS226-24G-2S+ series

CRS226-24G-2S+IN

CRS226-24G-2S+RM

List of Cloud Router Switch CRS226 24G 2S+ series 3

Disassemblin information

Disassembling information

'2#3 4 0 "0 4

20 4 #5"5%6  #!#!%6

 !7.8 4!9 #

'2#7(8 4 6$ "!06$ 

4 Disassembling information

Block dia ram of Cloud Router Switch CRS210-8G-2S+ series

Routerboard does not power on

:!5%* 45

1 Find potential problem area

RouterBOARD does not turn on when one of the power is disconnected. check Which voltage is

switched off, Power N (10 – 28V), 3.3V or 1.2V.

6 Routerboard does not power on

2 If Power_IN Failed

;!#5  < 0+"

 ! 0,=>##< 0+?"@A"9 !""

 2

Btry different power supply, if did not help, go to next bullet

Routerboard does not power on 7

Bmeasure if there is short circuit between GND and J1 Pin#1, if do, change C74, if did not

help, go to next bullet

B try change J1 power jack, if does not help, board unrepairable.

 ! 0,=>##' !050"9 !""

 2

Btry change Schottky Diode D1, if does not help, board unrepairable.

8 Routerboard does not power on

6+ 0:5,$ 0* 0& +.),&., ;*  6"%

6+ 0," ,,.,,.C % 6"%

,6+ 0-C! / '.,.$ '#5D#*6"%

6 ;:+ ;:+.,,.,& '#5D#*6"%

6< 0 6.,,,),, '*6"%

6+ 0," '3.,'%.: 5*  6@"%:

6+ 0,EC3' 6>.66C:$,,,C 3#F: !56"%

6 6+ 0))E3G:E3EC3' 6.HA H

' !05,&'F$ $,$ %.@' #  

' !05,&@.&&'F$ 'C.H 'D@CA6@"%:

' !05,&@.&&'F$ ':'%,I ':F6C@*%*6:C@6'&

' !05,&'F$ 'C.:.% ;.:*  6"%

' !05,&@.&&'F$ 'A' H*  66"%:

6 #,J,,KC, 6%$,)A63'* '#' # *#H3

6 #,J,,KC, HCF6C&,)A&,% F#F# #6

6 #,J,,KC, 3FA$,)A%.: :5D#6%

6 #,J,,KC, 6,K,)A,: 35'*6"%-3*6/

6 #,J,,KC, 6KC,)A3' L3M#

;!#5  @*

 ! 0,=>#)"@A"9 !"" 2

Btry change Schottky Diode D5, if does not help, board unrepairable.

Routerboard does not power on 9

' !05,&'F$ $,$ %.@' #  

' !05,&@.&&'F$ 'C.H 'D@CA6@"%:

' !05,&@.&&'F$ ':'%,I ':F6C@*%*6:C@6'&

' !05,&'F$ 'C.:.% ;.:*  6"%

' !05,&@.&&'F$ 'A' H*  66"%:

Bmeasure if there is short circuit on C14, C15, if do, change C14, C15, if did not help, go to

next bullet

Bif does not help, than try change inductor L1002, if did not help, go to next bullet

Btry change J1000,if did not help, board unrepairable.

10 Routerboard does not power on

C+)9E%*E'!:3E*F )&*&H6,,& 63&:'6*C*6@"%:

C+)9E%*E'!:3E*F ;.1>. ;*  6"%

C+)9E%*E'!:3E*F +..$3.&. 3:6

4*# ,,#3,@!"'F"6&"C3' $6;.)F.&4,> $6!*  6"%"

4*# ,,#3,@!'FC3'":NC"6" ':C>.6.>F '3&H3&F*'@H$**%*6:C@6'6@"%:

4*# ,,#3,@!"'F"6&"C3' $6;.)F.& $6!*  6"%"

6 ,,J),,KC, 6%$,AH '#' # *#H3

6 ,,J),,KC, 6%$,AH* '#' # *#H3

6 ,,J,,KC, 6,6,AC&6:I A*F*:*  '&

6 ,,J),KC, ,$,A)%: !#%0#6

6 ,)J,,,, *6+.D6,+ 

6 ,)J,,KC, ,6,+&:& &K6

6 ,,J,,KC, $>A,A, *6@'&H

6 ,,J,,KC, 66,K,A, !#%0#6

6 ,)J,,,, ,6,A&:& &K6

6 ,,J,,KC, 6%$,A66 '#' # *#H3

6 ,,J),,KC, 6,K,A),: 35'*6"%-3*6/

6 ,,J),,KC, 1) !5 

6 ,,J),,KC, 66,AAKC$$$, D6

6 ,,J,,KC, >1) !5 

6 ,,J),,KC, 6KC,A%:' L3M#

6 ,,J),,KC, 6KC,A%&' L3M#

6 ,,J),,KC, 6KC,A%' L3M#

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