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T E S T
LO Control
LO Detect
RF Detect
Battery
Power Supply/
Non-Volatile RAM
Power Supply/
Battery
DSP Initialization
UART
RAM
Attenuator #1
Attenuator #2
LO Compensation
LED
N O T E :
M u l t i p l e f a i l u r e s a r e i n d i c a t e d b y t h e s u m o f t h e e r r o r co d e s.
N O T E :
I f t h e D P R T e st f a i l s , t h e S e l f T e s t d o e s n o t r u n t h e su b s e q u e n t R A M t e st s.
** SELF TEST – PASSED **
RF MODULE: PASSED
DIGITAL MODULE: PASSED
POWER SUPPLY/BATTERY: PASSED
Press run to start
** SELF TEST – FAILURE 00000002 **
RF MODULE: FAILED
DIGITAL MODULE: PASSED
POWER SUPPLY/BATTERY: PASSED
Press run to start
S a m p l e S e l f T e st S cr e e n s
F i g u r e 4
G R O U P
RF
Valid ON/OFF status
RF
LO is locked.
RF
TX level out/attenuation
Voltage is within correct
Battery
voltage range.
Battery has sufficient power for
Battery
RAM to retain memory.
Digital
Handshake routine
Digital
RS-232 loop back
Digital
Dual Port RAM (DPR)
Video RAM
Non-Volatile RAM
Display RAM
Digital
Level at endline diodes
Digital
Level at midline diodes
Digital
DCXO control voltage
Digital
Interrogation and reply drivers
S e l f T e st E r r o r C o d e D e f i n i t i o n s
T a b l e 2
O PERATI ON MANUAL
TCAS- 201-2
V E R I F I E S
F A I L U R E
R U N N I N G
C O D E ( H )
O R D E R
00000001
2
00000002
12
00000004
13
00000010
1
00000020
Only on
power-up
00000040
14
00400000
8
01000000
3
02000000
4
04000000
6
08000000
5
10000000
9
20000000
9
40000000
11
80000000
7
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P a g e 2
S e p 1 / 0 4
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