Function (BVI) Mgnt. Corp.

F8 & G8 Payphone Maintenance Refresher

Course

OBJECTIVE

ENHANCE TECHNICIAN’S TROUBLESHOOTING SKILLS

REQUIRED ATTENDEE BACKGROUND

A Function payphone unit repair technician who has knowledge of:

Basic wireline central office and telephone line feature and functionality

Basic wireless network feature & functionality Regularly perform:

Unit activation & mainboard replacement Component isolation Line electrical characteristic testing using multi-meter

Always carries telephone test set & multi-testerAnd one who focus on finding a solution, not a problem

MAIN TOPICS Component functionality Transmission medium requirement Methods of communication between F&G

and RAMS Troubleshooting procedure Causes of not reporting payphone Coinbox collection Proper Elock assembly installation Upper housing activity

F-800

G-800

F-815

F/G-8 Component Functions Filter Board (F-800 & F-815)

Limit input current & voltage. Power Adaptor (G-800)

Convert input AC power to DC Battery Pack (G-800)

Backup power source in case of commercial AC power failure CPU/Mainboard (Common)

Controls and process payphone operation Antenna (G-800)

Intercept GSM electrical signal GSM Module (G-800)

Convert analog electrical signal to digital signal Elock Interface Module (Common)

Sends trigger current to Elock assembly Coin Validator (Common)

Detects & process diameter, thickness & metal magnetic characteristic

Hopper Assembly (Common) Temporary storage of coin and responsible for the execution of payment direction

Keypad Assembly (Common) User interface for number dialing

Keypad Connecting Board (Common) Junction board for mainboard, Keypad assembly & LCD

LCD (Common) User interface display. Shows advertisement, call instruction, dialed number, credit and

maintenance messages Hook Switch (Common)

Switch from on-hook to off-hook state and vice versa Handset (Common)

User interface used for analog frequency & voice Elock Assembly (Common)

Controls mechanical locking mechanism Coin Box

Depository of payment Card Reader (F-815)

Detects, distinguish, retrieve and write data from/to chip or magnetic strip card

F/G-8 Component Functions

Transmission Medium Requirements

Standard Telephone Line for F-800 & F-815 Dial tone Line voltage V : -10 offhook/-48 onhook Line current mA: 0.5 offhook/17mA onhook Circuit switching

GSM wireless network for G-800 Signal strength : level 11-31 Call routing GPRS network

Payphone Network

RAMS

F-8

Payphone NumberCPU Electronic ID

Standard WiredSwitchP S T N

SMART GSM Network

G-8

Modem

LAN

Payphone NumberCPU Electronic ID

SMS

GPRS

TCP IP

CSD

CSD

Communication Requirement

1. Payphone area code

2. Payphone number

3. CPU Electronic ID

4. Customer ID (Key code)

1. Payphone area code2. Payphone number

(6667976)3. Callback IP

(203.172.13.109)4. IP Port

(11000)

RAMS

1. Payphone area code2. Payphone number

(9823623)3. Callback Number

(889-5506)

Communication Method Between F8&G8 with RAMS

Wireline F-800 Payphone to RAMS – Direct dialing after

acquisition of dial tone RAMS to Payphone – Direct dialing after

acquisition of dial toneWireless G-800

Payphone to RAMS – Connects to GPRS network and sends login & password

RAMS to Payphone – RAMS send FICRAMS SMS code to payphone and upon receipt payphone wakes up and connect to RAMS via GPRS network

Maintenance Call & Call from RAMS Simulation

Troubleshooting Procedure Test call

User trouble diagnosis Dial tone or input power checking

Filter board, Jacketed wire, Station protector AC cable input, Adaptor output

Electrical property measurement Inspection of alarm port, DIP switch & watch dog

jumper Cable & grounding connection inspection Component visual inspection Maintenance menu

System query Component functionality test

Component replacement

Possible Causes of Not Reporting PhonesF-800

Line/network related NDT at line - Dead set & 0 line voltage Scratchy/noisy line - From butt set, can hear scratches during

conversation Grounded line - From butt set, can hear humming sound before or

during conversation Congested network - Can hear from handset network congestion AVR

or fast busy tone Unit related

Defective mainboard - Dead set or LCD lighted but with line voltage & dial tone

Defective filter board - Unit normally operating but sometimes has noise during conversation

Wrong setting - Does not initiate call to RAMS or immediately shutdown

Mainboard not initialize - Hears handshaking but does not continue to data transmission

RAMS related Modem call collision - Hears busy ringback tone Non-responsive modem - Always hear ringback tone High RAMS processor usage - Hears handshaking but does not continue to data

transmission

G-800 GPRS Network related

Intermittent signal - Enters EO state but not successful No signal - A1,A2… reinitialize Congested network - Enters EO state but not successful

Unit related No supply power - Dead set Defective mainboard - Dead set or LCD lighted but with input

voltage Defective GSM module - Module init fail Wrong IP port or login - TR1, C1, C2…… F0,, then reinitialize

account DIP switch set to PROG - Module init fail No SIM or dirty contact - Insert SIM card

RAMS related Comm control restarted - Enters EO state but not successful High RAMS processor usage- Enters EO state but not successful

Possible Causes of Not Reporting Phones

Correct Collection Procedure1. Lift handset

Verify presence of both dial tone and back lighted logo If either or both is absent, collection is not recommended.

2. Insert correct vault lock key.3. Enter electronic lock access code *#5.4. Enter electronic lock password and press # to enter5. After LCD displays “Open Successful” and hearing a “click” coming from E-

lock, turn the key 180 degrees counter-clockwise to open the E-lock6. Insert T-wrench into slot and turn 45 degrees clockwise7. Open the vault door8. Remove coin box9. Wait for collection report to complete. Reporting is indicated by “Please Wait”

“Payphone Downloading” LCD message.10. Insert new empty coinbox

“C-Box Missing” message must be displayed first before inserting the new coinbox. Ensure the lid aperture door is in open state before insertion the empty coinbox

11. Close the vault door12. Turn T-wrench 45 degrees counter-clockwise and remove T-wrench13. Turn vault door key 180 degrees clockwise and remove the vault door key14. Replace handset to cradle

Collection Related ProblemsProblem Cause Solution

Shutdown after *#5 Password expired Request for property download

Password failed Wrong password Get latest password from PMS

Open failed -Defective/Elock control PCB-Loose/detach/cut cable-Defective Elock assembly board

-Replace Elock control PCB-Replace/fix cable-Forcibly open vault

Open Successful (No click)

Stuck up piston -Pound housing near Elock assembly by rubber mallet

Open Successful (Faint click)

Stuck up piston -Pound housing near Elock assembly by rubber mallet-Turn the key right after “Open Successful”

Proper Elock Assembly Installation

Proper Upper Housing Closure Option-1

1. Open upper housing2. Perform maintenance activity3. After fixing the problem, enter maintenance menu &

execute 4-1/4-34. Wait for completion of reporting5. Close upper housing

Option-21. Open upper housing2. Perform maintenance activity3. After fixing the problem, enter maintenance menu4. Close upper housing while in maintenance menu5. Execute 4-1/4-3

Housing Activity Simulation

REMINDERS Do not execute erase data during troubleshooting, Erase data

feature in maintenance menu must only be use when activating a newly installed payphone or mainboard.

Do not disconnect the line during troubleshooting if not necessary because electronic password will automatically expire

Do not interrupt payphone communication with RAMS as indicated “Please Wait, Payphone Downloading” in LCD. Do not open or close upper housing door while phone is in communication state

Ensure that payphone number in setting match the line telephone number before executing initial call or data restore call

When disconnecting the cables, hold firmly from the connectors, not from the wires.