Sony XR-3100R - Page 29

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IC671 BA3918-V3
IC701 BA8270F-E2
• Waveforms
– MAIN Board –
1 IC1 2 (OSC OUT)
2 IC51 5 (OSCI)
3 IC501 uf (X0A)
4 IC501 od (X1)
0.8 Vp-p
98 ns
3.3 Vp-p
231 ns
3.6 Vp-p
30.5
µ s
5.8 Vp-p
272 ns
2.7 Vp-p
27 µ s
– KEY Board –
1 IC901 y; OSC
+
–
+
–
+
–
+
–
OVER VOLTAGE
PROTECT
REGULATOR
1
2 3
4
5 6 7 8 9 10 1211
NC
MODE2 MODE1
STB
VDD
AMP
VCC ANT
COM
AM
FM
GND
1
2
3
4
5
6
7 8
9
10
14
13
12
11
BUS ON
SWITCH
RESET
SWITCH
BATTERY
SWITCH
BUS ON
RST
BATT
CLK
VREF
DATA
GND
VCC
RST
BUS ON
CLK IN
BU IN
DATA IN
DATA OUT