Motorola XTS 2500 Service Manual page 535

VHF Troubleshooting Tables: Tables
U800 Pin
Number
A3
B3
B4
A7
P3
P6
T9
N10
R16
H9
G9
E15
A16
K10
C12
D8
B7
A4
A16
H2
K3
R8
G15
C10
K12
L16
F13
B16
D14
B12
6816985H01-F
Table 8.1-5. Patriot MCU/DSP (U800) Pinout (Continued)
Description
RTA2
RTA1
RTA0
V1.875
V1.875
V1.875
V1.875
V1.875
V1.875
V2.9
V2.9
V2.9
V2.9
V2.9
V2.9
V2.9
V2.9
V2.9
V2.9
V2.9
V1.875
V1.875
V1.875
V1.875
URXD1_USB_VMI
URTS1_XRXD
ADTRIG
P-URXD2
P-URTS2
RX_SSI_DATA
To/From Comment
VR593, pin 2
VR595, pin 1
VR594, pin 2
E801 1.875V
E801 1.875V
E801 1.875V
E801 1.875V
E801 1.875V
E801 1.875V
E800 3.0V
E800 3.0V
E800 3.0V
E800 3.0V
E800 3.0V
E800 3.0V
E800 3.0V
E800 3.0V
E800 3.0V
E800 3.0V
E800 3.0V
E801 1.875V
E801 1.875V
E801 1.875V
E801 1.875V
SSI_D Data From
Abacus to
DSP
8.1-9
Accessible on
Main Board?
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
No
No
Yes
February 14, 2012