KX-TG7105RUS, KX-TG7105RUT, KX-TG7106RUS, KX-TG7106RUT, KX-TGA710RUS, KX-TGA710RUT - Panasonic Telephone Service Manual (repair manual). Page 86

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1. RTL (Retention Time Limited)

The marking (RTL) indicates that the Retention Time
is limited for this item.
After the discontinuation of this assembly in produc-
tion, the item will continue to be available for a specific
period of time. The retention period of availability is
dependant on the type of assembly, and in accor-
dance with the laws governing part and product reten-
tion. After the end of this period, the assembly will no
longer be available.

2. Important safety notice

Components identified by the   mark indicates special
characteristics important for safety. When replacing any
of these components, only use specified manufacture’s
parts.

3. The S mark means the part is one of some identical parts.

For that reason, it may be different from the installed part.

4. ISO code (Example: ABS-94HB) of the remarks column

shows quality of the material and a flame resisting grade
about plastics.

5. RESISTORS & CAPACITORS

Unless otherwise specified;
All resistors are in ohms (

Ω) K=1000Ω, M=1000kΩ

All capacitors are in MICRO FARADS (

µF)P=µµF

*Type & Wattage of Resistor

(*1) When replacing IC5 and IC7, data needs to be written
to them with PQZZTG7105RU. Refer to Base Unit (P.61) of
Things to Do after Replacing IC.