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HYDRA
Service Manual
5-16
AC Divider
Network
Analog
Measurement
Processor Intergrate Resistors, Reference Divider
Zener Reference
Divider
Network
(DC/OHMS)
A3TP9
A3TP1
A3TP7
A3TP8
A3TP2
A3TP3
A3TP4
A3TP5
A3TP6 A3TP10
A/D Microcontroller
AC Buffer
RMS Converter
RMS Converter
Network
A3TP12
A3TP11
A3TP13
A3U9
MICROCONTROLLER
9
8
7
6
5
4
3
2
1
68
67
66 K3S
65 K3R
64 K7S
63 K7R
62 K14S
61 K14R
VDD
RESET
VDD
VDD
ZERO
DRX
DTX
CLK
IGRX
IGTX
AR
OTCCLK
AS
IRQ1*
FC7
CS
RIRQ1*
FC0
FC1
FC2
FC3
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
OTCEN
OTC
K16R 27
K16S 28
K17R 29
K17S 30
K15R 31
K15S 32
33
34
35
36
37
38
K8R 39
K8S 40
K9R 41
K9S 42
K10R 43
60 K13S
59 K13R
58 K6S
57 K6R
56 K5S
55 K5R
54
53 K12S
52 K12R
51 K1S
50 K1R
49 K2S
48 K2R
47 K11S
46 K11R
45
44 K10S
RELAY
DRIVERS
P32
P33
P34
P35
P36
P37
NC
P10
P11
P12
P13
P14
P15
P16
P17
VSS
P40
NMI*
STBY*
RES*
MP1
MP0
EXTAL
XTAL
VSS
NC
E
P70
P71
P72
P73
P74
P30
P31
P20
P21
P22
P23/RX
P24/TX
P25
P26
P27
NC
P50/IRQ1*
P51/IRQ2*
P52
P53
P54
P55
P56
P57
P60
P61
P62
P63
P64
P65
P66
P67
NC
VCC
P47
P46
P45
P44
P43
P42
P41
s36c.eps
Figure 5-5. Test Points, A/D Converter PCA (A3, A3U9)