Pioneer-SX-5L-Service-Manual电路原理图.pdf
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Pioneer-SX-5L-Service-Manual电路原理图.pdf
RadioFans.CN 收音机爱 好者资料库 RadioFans.CN 收音机爱 好者资料库 The RWM hold period in the SX-7 has been extended by inhibiting the microcomputer (con- sumption current is less than 10pA). And in the SX-6, SX-5 and SX-4, the battery life has likewise been extended in much the same way. This inhibition operation is controlled by the I-EQ- and STBY terminals. The switching sequence involved in switching to inhibit mode must follow the order shown in Fig. 1-8. Normal memory functions are lost once the inhibit mode Vcc drops below 2.5V. Note that the RIESET terminal has to be at H level during inhibit mode. Furthermore, approximately lmA of current is consumed until cessation of the clock pulse input (Extal). Although the switch on sequence during restart has not been specified, the reset signal is applied only after all prescribed values have been retumed to normal. Fig. 1-8 Power supply sequence for inhibit mode
