Wireless Lan Section - Panasonic KX-MB2230JT Service Manual

KX-MB2230JT/ KX-MB2270JT/ KX-MB2515JT/ KX-MB2545JT/ KX-MB2575JT/ DP-MB310JT
12.3.23.3. Broken Parts Repair Details
(D10)
If D10 is short-circuit, F2 will melt (open).
In this case, replace the parts (D10 and F2).
(Q1)
The worst case of Q1 is a short-circuit between the Drain and Gate because damage expands to the peripheral
circuit of Q1. This is due to a very high voltage through the Gate circuit, which is composed of IC1. You should
change all of the parts listed as follows.
• F2, Q1, IC1
(C5)
If over voltage (more than AC320V) was supplied for a Low Voltage Power Supply board (SMPS Board), C5 will be broken.
(F101)
If F101 is melted (open), check the 24VA lines of the Main board and others.
(F102)
If F102 is melted (open), check the 24VB lines of the Main board and others.

12.3.24. Wireless LAN Section

Wireless LAN Block Diagram
257