How to remove error 3 juki sv -500 - Juki Sewing Machines

What an unusual machine. I have never seen one before. Here is the manual :>D

https://www.babylock.co.jp/new_site/wp-content/uploads/2017/11/CM-606.pdf

CM-500

http://www.feiyueusa.com/Manual/CM500.pdf

All the Industrial machine manuals on the Juki site, but not yours!

https://www.juki.co.jp/industrial_e/products_e/manual.php

Not in home Sewing Machines either.

https://www.juki.co.jp/household_ja/search/index.html?q=CM-606

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Hi
about error 3 please make sure first dc voltage comining fro power board to servo board check J8,J28, second encoder signal from the motor is not supplied check J2,J29, third check connection between main board and servo board J11,J1
best regards
ashraf

have a good day
concern Error E004 can you please tell me the control Box model? generally E004 means:
1-Synchronizer lower position sensor failure ( SC-500 / SC-510 )
cause :
======
• When position detection signal is not input from the sewing machine head synchronizer.
• When the synchronizer has broken.
points check:
==========
• Check the synchronizer connector (CN33) for
loose connection and disconnection.
• Check whether the synchronizer cord has broken
since the cord is caught in the machine head.
otherwise make sure first connection for synchronizer connected securely.
best regards
ASHRAF ABOZID
CAIRO - EGYPT
[email protected]

Main shaft motor encoder defective Angle counter of needle UP detection has exceeded the value equivalent to 1.1 turns. Angle counter of needle DOWN detection has exceeded the value equivalent to 1.1 turns This unit appears to employ an optical encoder. It could be encoder has lint interfering with operations and cleaning the area surrounding the encoder may restore operation (do not use compressed air, light brush and vacuum. Otherwise service/repair.

Search for:

Juki 1790 error 050

https://www.google.com/search?q=Juki+1790+error+050&ie=utf-8&oe=utf-8

Perhaps this will help:

JUKI Sewing Machine Instruction Manual Error Code List

You may need to contact Juki for instructions on how to correct this error.

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Hi Mohamed
regarding Error E 071 of SC-810 control please check :
1- thread trimmer cam correct adjusted or not.
2- there is a lot of thread into motor pulley or machine pulley.
3- if error E 071 coming immediately when turn power ON means problem inside control box, to confirm that please put working control box on machine , if error remove means problem at control box.
best regards
ASHRAF ABOZID
[email protected]
CAIRO - EGYPT

JUKI MODEL :8700-7
CONTROL BOX: SC 500
PROBLEM :ERROR - 7

hi there
1- your control box model is SC-500 not SV500, juki didn't made sv never ever
2- there is no error 2 just error 3 and error 4 both means there's problem with synchronizer which installed behaind handwheel first try to clean it by dray spray maby there's some oil or dust arround it. if error still coming change the senchronyzer with new one
best regards
ashraf abozid
[email protected]

hi there
u can find at www.juki.com under industerial sewing machine
u can download DDL 8700-7 instruction manual
best regardes
ashraf abozid
[email protected]