ST-800/900 Maintenance manual
6
C Regain factory setting: long press C button for 3 second, after hear “di” warning
sound, means regain factory setting
8、Testing method.
8.1、Tools and material: Multimeter、Small Flathead screwdriver、80g common print paper120*150mm.
8.2、Count voltage adjustment: under BATCH mode, input “1; 2; 3; 4” and press “RESET” button, display show
“U00 A00 ”, put 2pcs paper to block counting tube, adjust W3, W4 in the main board, to make the voltage of T1,
T2 between 0.3-0.35V (clockwise adjust will turn down, anti-clockwise will turn up ).
8.3、UV voltage adjustment: under BATCH mode, input “1; 2; 3; 4” and press “RESET” button, display show
“U00 A00 ”, put the paper to block UV light, adjust VR1 on the main board, to make the voltage of T8 larger then
3.2V (clockwise adjust will turn up, anti-clockwise will turn down )
9、Power on failure and solution
Phenomenon Fault reason Fault Handling
Starting up
without
electricity
. Power supply socket without
electricity Check power supply socket
2. Fuse damage Replace fuse
3. Power switch damage Replace power switch
4. Power wire open circuit Replace power wire
5. Power plug poor contact Insert power plug once again
6 .Built-in switch power output
wire poor contact Repair output wire
voltage output Replace built-in switch power
self checking
after open
showing EA0、
EA1
. To much dust in the left, right
counting tube Cleaning the dust with brush
breakdown, open circuit Replace launch tube（Judgment method see diagram 1）
breakdown, open circuit Replace receiving tube（Judgment method see diagram 1）
. left, right counting tube plug
wire poor contact Repair left right counting tube plug wire
. left, right launch tube operating
circuit faulty
left, right launch tube operating circuit
or replace main board (see diagram 2)
. left, right receiving tube
operating circuit faulty
Check and repair left, right receiving tube operating
circuit or replace main board (see diagram 2)
self checking
after open
showing EA2
1. to much dust in the reset sensor Cleaning the dust with brush
. Worn notes or sundries block
stacker tube take away worn notes or sundries
Stacker launch tube breakdown,
open circuit replace launch tube (see diagram 1)
breakdown, open circuit replace receiving tube (see diagram 1)
5. stacker operating circuit faulty
Check and repair reset sensor operating circuit or replace
main board (see diagram 5)
self checking
after open 1. to much dust in the dial sensor Cleaning the dust with brush
2. dial sensor damage replace dial sensor (see diagram 1)
