Tait TB7100 - Power Supply

TB7100 Service Manual Servicing Procedures 125
© Tait Electronics Limited October 2005
Figure 8.1 Test sheet
TB7000 base stations
TB7100 Base Station - Single Channel Test Sheet
ID: TSI7001_1.DOC ISSUE DATE: 09/06/2005 Printed document is uncontrolled except on day of printing: 18/10/2005 PAGE 1 OF 1
Product Code: TBB__________-_________-________
Serial Number: ________________
Job Number: _________________ Quantity: ______/_______
Module details Product code DB Version Serial number F/W version H/W version
RX Board
TX Board
SI Board
UI Board
Power Supply
Channel RX Frequency
Sensitivity
(W/B)
(12dB SINAD <-115 dBm)
De-Emph, Balanced O/P
TX Frequency
Deviation @ TD
(W/B Limit =3 r 0.25 kHz)
Pre-Emph, Balanced I/P
Tx Power
(-13)= 21-32W
(-15H)= 33-50W
(-15B1)= 42-65W
MHz dBm MHz KHz W
Balanced output Level
(Limit = -10dBm r
r
0.5 dB)
Z
L
=600 : @ TL
dBm
Audio Distortion (<2%) Balanced @ TD %
Balanced output audio distortion
(< 2.0%) @ TL
%
Limiter (4.0 kHz to 5.0 kHz) Max. deviation kHz
Un-balanced output
Level
(Limit = 1 r
r
0.15 V
PP
)
Z
L
> 10k : @ TL
Vp-p
(20dB step balanced input) @ audio freq. kHz
Mute Gating (RF levels) Mute dBm
Unbalanced deviation @ TD, 1Vpp I/P level
(3 kHz r 0.25 kHz)
kHz
Un-mute dBm
Microphone deviation (whistle)
(4.4 kHz r 0.4 kHz)
kHz
Power Supply Rack frame
Input power type used for tests: DC AC RX_GATE & TX_KEY OK
AC o DC o AC changeover operation:
OK Speaker operation OK
Fan operation @40°C (J222=1.40V) OK
Comments
F1, F2, F3, F4 keys OK
Software Features (SFE) = LED functionality OK
Digital I/P & LCD RX OK
Digital I/P & LCD TX OK
Digital O/P RX OK
Digital O/P TX OK
TOI (Links w401, w402); Default =disabled OK
Test sheet completed by:
Date:
Assembled by: Date:
Notes
1. All performance tests are at TF unless otherwise stated.
Test tone settings
2. Software settings on next page used to generate test
results.
TL RF Test Level = -70dBm, 1kHz modulation @ 60%
max deviation.
TD RF Test Deviation = 60% max, 1kHz test tone.
Test Set-up Details
Test Equipment HP8920
Test Equipment S/N ID _ _ _ _
Programming App version
Rx Configuration file
Tx Configuration file