VendNet 3120-GF12 II, Service Manual

8

For instance, if during a vend the controller
detected a motor switch failure, that selection
would be flagged as faulty and would be
disabled. That motor would display the next time
the

 Service Mode

 is entered.

MDB Errors

NOTE

The following errors are only displayed
when the 

Service Mode

 is entered. Record

the displayed information immediately upon
entering the 

Service Mode

. Any keypad

input or exiting of the 

Service Mode 

will

erase the MDB error codes.

Table 1.  Error Codes

DISPLAYS

INDICATES

CScF

Invalid mechanism scale factor

tSnS

Defective coin tube mechanism

CJAM

Coin jam detected

tJAM

Coin tube jam detected

CnEr

Coin acceptance problem detected

AcEr

Acceptor unplugged

ChEr

Coin mechanism ROM checksum bad

bScF

Invalid acceptor scale factor

bSnS

Defective bill sensor

bJAM

Bill jam detected

StFL

Bill stacker is full

CShb

Bill cash box is out of position

bMtr

Bad bill motor detected

bLEr

Bill acceptor ROM checksum bad

rScF

Invalid card reader scale factor

CdEr

Card error detected

bCrd

Invalid card detected

rJAM

Card reader jam detected

CoEr

Communications error detected

brdr

Card reader failure

Programming the Controller

To access the programming, enter the 

Service

Mode,

 then choose from the following modes.

Table 2.  Modes

PRESS

DISPLAYS

MODE

[  1  ]

Coin

Coin Dispense

[  2  ]

Motor Count

[  3  ]

Acct

Accountability

[  4  ]

Prc

Price Setting

[  5  ]

Slct

Test Vend Single Motor

[  6  ]

Test Vend All Motors

[  E  ]

Optn

Vend Options

[  B  ]

ºDeg

(temperature)

Refrigeration Control
(not used on this machine)

Coin Dispense Mode

In the Coin Dispense Mode, coins stored in the
coin mechanism payout tubes can be removed.
Press the Service Mode Button, then press 

[

1  ]

.

Coin

 displays. See Table 3.

Table 3. Coin Dispense Keys

PRESS

TO DISPENSE A COIN OF:

[  A  ]

the lowest denomination

[  B  ]

the next higher denomination

[  C  ]

the next higher denomination

[  D  ]

the highest denomination

Pressing a key once will pay out one coin.
Pushing and holding a key will allow the coins to
pay out at a rate of approximately two per
second. Coins will continue to be dispensed from
the payout tube as long as its activating key is
pressed.
Pushing any key other than 

[   A   ]

, 

[   B   ]

, 

[  C  ]

 or

[  D  ]

 will exit back into the 

Service Mode

.