Tektronix TG8000 Service Manual

GPS7 module troubleshooting
Table 10-5: Pow
er supply test points
Test point
Supply name
Limits Notes
Mainframe su pp lies
TP111 M+5VD +4.75 V to +5.25 V
Mainframe Fused 5 V digital supply, fuse
F132
TP211 M+3.3V +3.1 V to +3.5 V
Mainframe Fused 3.3 V digital supply,
fuse F131
TP213 M–5VA –4.75 V to –5.25 V
Mainframe Fused –5 V analog supply,
fuse F111
TP214 M+5VA +4.75 V to +5.25 V
Mainframe Fused +5 V analog supply,
fuse F121
TP215 M+8V +7.6 V to +8.4 V
Mainframe Fused +8 V analog supply,
fuse F122
Derived supplies
TP311 ANT+5V 0 to 5.8 V
Switched GPS antenna supply – user
setup
TP411 RAMP+7V 6.75 V to 7.25 V
Derived from M+8V
TP511 RAMP-4V -4.25 V to -3.75 V
Derived from M-5V
TP711
CIR+2.5V
2.375 V to 2.625 V
Derived from M+3.3V
TP911 VID+4.1 4.08 V to 4.11 V
Derived from M+5VA
TP821
LTC+3.3V
3.30 V to 3.39 V
Derived from M+5VA
TP0821 BB+1.2V 1.15 V to 1.25 V
Derived from M+3.3V
TP0421
DO+1.2V
1.15 V to 1.25 V
Derived from M+3.3V, test point is under
Trimble GPS receiver board
TG8000 Multiformat Test Signal Generator Service Manual 10–15

Tektronix TG8000 Specifications

General

Brand	Tektronix
Model	TG8000
Category	Portable Generator
Language	English