Trouble Shooting Guide; Service Hints; Pulse Dialing Problems - Panasonic KX-TS550MEB Service Manual

9 TROUBLE SHOOTING GUIDE

9.1.

Service Hints

No Tone Dialing
Dead
Rings, no dial tone, no pulse or tone dial
No rings
No volume Handset
Buttons stick under upper cabinet assembly. From key board
No pulse dial
9.2.

Pulse Dialing Problems

SYMPTOM CURE
Check IC1, Q2, Q1, C22 and VR1.
Check IC1, Q2, Q1 and D17.
Check Q1, Q2, Q7, D17 and Q3.
Check C1, R2 and IC2.
Check IC1, VR1, C15 and C22.
Adijust the setting of buttons.
Check Q1, Q2 and IC1.
9
KX-TS550MEB / KX-TS550MEW