Motorola CP040

2-2 TROUBLESHOOTING TABLES
U52
BW Select Switch
1 Inverter 1 input 0 (25 kHz mode)
2 Inverter 2 output 0 (25 kHz mode)
3 Inverter 3 input (NU) GND
4 Ground GND
5 Inverter 3 output (NU) 4.96
6 Inverter 2 input 3.00 (25 kHz mode)
7 Inverter 1 output 4.95 (25 kHz mode)
8 Vcc 4.96
IC Designator Pin Pin Function DC Voltage Comments (Condition)