Contents
AC-4000H Service Manual No. 085-7323-08
viii
CHAPTER 6
TROUBLESHOOTING
6.1
Error List .............................................................................................................................. 6-1
6.2
Symptom, Cause, And Measures ........................................................................................ 6-4
CHAPTER 7
PARTS REPLACEMENT
7.1
Removing the covers ........................................................................................................... 7-1
Removing the front cover (shop side) ............................................................................... 7-1
Removing the rear cover (customer side) ......................................................................... 7-2
7.2
Detaching Internal Parts ...................................................................................................... 7-3
Detaching the keyboard relay board (P-862A) .................................................................. 7-3
Detaching the key sheet .................................................................................................... 7-3
Detaching the operator display ......................................................................................... 7-3
Detaching the customer display ........................................................................................ 7-4
Detaching the power supply .............................................................................................. 7-4
Detaching the span switch (PK-236A) .............................................................................. 7-4
Detaching the PK-232 (TCP/IP) ........................................................................................ 7-5
Detaching the PK-240 (DC/DC converter) ........................................................................ 7-5
Detaching the PK-229A (A/D board) ................................................................................. 7-6
Detaching the PK-950B (Main board) ............................................................................... 7-6
Detaching the load cell ...................................................................................................... 7-7
limit adjustment ................................................................................................................. 7-7
Detaching the thermal head .............................................................................................. 7-8
Cleaning the thermal head ................................................................................................ 7-9
Adjusting the belt tension .................................................................................................. 7-9
Cleaning the label sensor/peel sensor .............................................................................. 7-9
7.3
Periodical Replacement Parts ........................................................................................... 7-10