Error Codes for Jerrold / Gi

Press the following key and digit on either the keypad or remote control unit.

F 1= Dynamic Diagnostics


This mode permits the monitoring of the descrambler circuit, the FM
receiver and the FM signal.

Digit 1 = State of descrambler
C = Clear channel
S = Scrambled channel
B = Barker channel
- = Disconnected

Digit 2 = State of FM Receiver

O = FM Data "OK"
E = FM Data "ERROR"

Indicator "A" lights when unit sees a purchasable event
Indicator "B" lights when unit is addressed over the FM Data


F 2 = Serial number & firmware version

1st Number = Place made

00 = Japan
01 = Tawain

2nd Number = Year made

11 = 1991
12 = 1992
13 = 1993
14 = 1994

3rd Number = Month made

20 = Jan, 21 = Feb, 22 = Mar, 23 =Apr, 24 = May,
25 = Jun, 26 = Jul, 27 = Aug, 28 = Sep, 29 = Oct,
2A = Nov, 2B = Dec

11th Number = Firmware versions


F 3 = Firmware Mode

I = Internal firmware

R = Expansion ROM version


F 4 = STATE diagnostic Mode

Digit 1 = State of FSK data

R = Receiving Data

- = Idle

T = Transmitting Data (2 way only )

F 5 = STATUS Diagnostic Mode

Alternating display of the Frequency & Level. There are 16 different levels
( 0 - 9, A - F)


F 9 = Clock Function

Toggles Clock on & Off

F 0 = Error Codes

EO = Normal
E1 = Reset timeout or good FM Packet not received
E4 = Illegal Converter
E5 = Converter has default address, initialize again
E7 = Faulty ROM or wrong initialization process
E8 = Site code error
E9 = Bad checksum pattern in non-volatile memory
EA = Invalid serial # entry (Wrong checksum)