Cisco C85-SIMM-16MB - Upgrade From 8MB Especificaciones descargar pdf (Pagina 143)

Troubleshooting

Samsung Electronics

Service Manual

6-19

6.5.1 No Dial Tone

• Description

While on-hook button is pressed, there is no dial tone.

6.5 Fax & Phone Problems

Check and Cause Solution

1. Check if the telephone line cord is connected to

TEL LINE correctly.

2. Check if it makes CLICK sound while OHD key is

pressed.

3. Check the connection of HARNESS between the

LIU and the Main B'd.

4. Check if the SPEAKER is connected correctly.

1. If the telephone cord is normal but there is no dial tone,

then try to replace the LIU B'd.

2. If you cannot hear the OHD CLICK sound, the OPE

Ass’y may be defective. Try to replace the OPE Ass’y.

3. Check the Speaker connection, and try to replace it.

4. Lastly, try to replace the Main B'd.

6.5.2 Defective MF DIAL

• Description

The MF DIAL is not functioning.

Check and Cause Solution

1. Check if the telephone line is connected correctly.

2. Wile the BUTTON KEY is pressed, check to catch

a CLICK sound.

3. Check the connection of HARNESS between the

LIU and the Main PBA.

1. If you cannot catch the OHD CLICK sound, the OPE

Ass’y may be defective. Try to replace the OPE Ass’y.

2. If you can catch a CLICK sound, after checking the

connection of HARNESS between the LIU and the

Main PBA, try to replace the HARNESS.

3. The problem still persists, then replace the LIU and the

main B'd in sequence.

Notes:

Product supports the MF DIAL type only.

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Cisco C85-SIMM-16MB - Upgrade From 8MB Especificaciones Pagina 143