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
Fault
Phenomenon
Fault reason
Fault Handling
Starting
up
without
electricity
1. 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
7. Built-in switch power without
voltage output
Replace built-in switch power
self checking
after open
showing EA0
、
EA1
1. To much dust in the left, right
counting tube
Cleaning the dust with brush
2.
left, right launch tube
breakdown, open circuit
Replace launch tube
（
Judgment method see diagram 1
）
3. left, right receiving tube
breakdown, open circuit
Replace receiving tube
（
Judgment method see diagram 1
）
4. left, right counting tube plug
wire poor contact
Repair left right counting tube plug wire
5. left, right launch tube operating
circuit faulty
Check and repair left, right launch tube operating circuit
or replace main board (see diagram 2)
6. 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
2. Worn notes or sundries block
stacker tube
take away worn notes or sundries
3.
Stacker launch tube breakdown,
open circuit
replace launch tube (see diagram 1)
4.
Stacker
receiving
tube
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)
