Pioneer GM-X924 Service Manual - Page 26
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GM-X1024,GM-X924 7. GENERAL INFORMATION 7.1 IC PA2027A VCC 1 Transient voltage detector Stby 2 Bandgap DET1 3 DET2 4 + - Circuit motion:on zz 50µA zz+- 16 IN1 2V zz+- 15 IN2 2V zz+- 14 IN3 2V 13 Cont_V DET_R 5 GND 6 NC 7 NC 8 - + 4.7kΩ Bandgap:on Switch:on zz + - 2V 5.6V 0.13V + - Oneshot (1µsec) SQ R 20µA + zz 2V 2V - + 12 Filter 11 Vs_out 10 TC 9 Mute_out 26
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GM-X1024,GM-X924
7. GENERAL INFORMATION
7.1 IC
PA2027A
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
VCC
Stby
DET1
DET2
DET_R
GND
NC
NC
IN1
IN2
IN3
Cont_V
Filter
Vs_out
TC
Mute_out
+
-
zz
2V
+
-
zz
2V
+
-
zz
2V
+
-
2V
zz
+
-
2V
20
μ
A
+
-
zz
2V
+
-
zz
50
μ
A
4.7k
Ω
Transient voltage
detector
Bandgap
Circuit motion:on
+
-
5.6V
+
-
Q
S
R
Oneshot
(1
μ
sec)
Bandgap:on
Switch:on
0.13V