Read Panasonic KX-TG6621RUB / KX-TG6621RUM / KX-TG6621UAB / KX-TG6621UAM / KX-TG6621CAB / KX-TG6621CAM / KX-TG6622CAB / KX-TGA661RUB / KX-TGA661RUM Service Manual online
KX-TG6621RUM
KX-TG6621UAB
KX-TG6621UAM
KX-TG6621CAB
KX-TG6621CAM
KX-TG6622CAB
KX-TGA661RUB
KX-TGA661RUM
M: Metalic Grey Version
(for CIS)
handset and a charger.
public. It does not contain warnings or cautions to advise non-technical individuals of potential dangers in attempting
to service a product. Products powered by electricity should be serviced or repaired only by experienced professional
technicians. Any attempt to service or repair the product or products dealt with in this service information by anyone
else could result in serious injury or death.
in the Schematic Diagrams, Circuit Board Diagrams, Exploded Views and Replacement Parts List. It is essential that
these critical parts should be replaced with manufacturer's specified parts to prevent shock, fire or other hazards.
Do not modify the original design without permission of manufacturer.
Standard leaded, (Pb), solder can be used as usual on boards without the PbF mark.
When this mark does appear, please read and follow the special instructions described in this manual on the
use of PbF and how it might be permissible to use Pb solder during service and repair work.
L The illustrations in this Service Manual may vary slightly from the actual product.
2.2. About Lead Free Solder (Pbf: Pb free)--------------- 4
2.3. Discarding of P.C. Board--------------------------------- 5
4 Technical Descriptions ----------------------------------------- 7
4.2. Circuit Operation (Base Unit) --------------------------- 8
4.3. Block Diagram (Handset)-------------------------------11
4.4. Circuit Operation (Handset)----------------------------12
4.5. Circuit Operation (Charger Unit) ----------------------13
4.6. Behavior of Electric Power Failure -------------------13
4.7. Signal Route -----------------------------------------------14
6 Installation Instructions ---------------------------------------16
7 Operating Instructions-----------------------------------------16
8.2. Copying Phonebook Items when Repairing -------21
8.3. How to Clear User Setting------------------------------23
9.2. Troubleshooting by Symptom (Base Unit and
10.2. How to Replace the Base Unit LCD -----------------48
10.3. How to Replace the Handset LCD -------------------50
11.2. The Setting Method of JIG (Base Unit) -------------51
11.3. Adjustment Standard (Base Unit)---------------------53
11.4. Adjustment Standard (Charger Unit)-----------------54
11.5. The Setting Method of JIG (Handset) ---------------55
11.6. Adjustment Standard (Handset) ----------------------57
11.7. Things to Do after Replacing IC or X'tal ------------58
11.8. RF Specification-------------------------------------------60
11.9. How to Check the Handset Speaker or
12.2. How to Replace the Shield Case ---------------------64
12.3. Terminal Guide of the ICs, Transistors, Diodes
13.2. Schematic Diagram (Base Unit) ----------------------68
13.3. Schematic Diagram (Base Unit_Operation) -------70
13.4. Schematic Diagram (Handset) ------------------------72
13.5. Schematic Diagram (Charger Unit) ------------------74
14.2. Circuit Board (Base Unit_Operation) ----------------77
14.4. Circuit Board (Charger Unit)--------------------------- 81
15.2. Cabinet and Electrical Parts (Handset)------------- 83
15.3. Cabinet and Electrical Parts (Charger Unit) ------- 84
15.4. Accessories------------------------------------------------ 85
15.5. Replacement Part List ---------------------------------- 86
2. If a lead wire assembly is supplied as a repair part, the lead wire assembly shall be replaced.
3. FASTON terminals shall be plugged straight in and unplugged straight out.
2. Ground the soldering irons.
3. Use a conductive mat on worktable.
4. Do not grasp IC or LSI pins with bare fingers.
2. Replace only with the same or equivalent type recommended by the manufacturer.
3. Dispose of used batteries according to the manufacture’s Instructions.
contains lead.
We will use PbF solder when discussing the lead free solder used in our manufacturing process which is made from Tin (Sn),
Silver (Ag), and Copper (Cu).
This model, and others like it, manufactured using lead free solder will have PbF stamped on the PCB. For service and repair
work we suggest using the same type of solder.
pin
excess solder