Codan NGT 2010 RF Technical & Service Manual page 21

Index
Numerics
3012
brief description 299
dismantling 310
drawings 317
fault finding 307
LED indicators 294
,
overview 291 292
parts lists 315
pin connections 297
power supply 305
,
specifications 291 295
technical description 303
8571
brief description 331
dismantling 352
drawings 363
fault finding 351
,
overview 319 320
parts lists 361
pin connections 324
power supply 336
receive path 337
,
specifications 319 322
technical description 335
transmit path 340
A
adjustments
high power 235
NGT 145
Application Processor Handset & Data I/F PCB
microprocessors and control 126
,
supply voltages 107 150
transmit path 110
Application Processor Handset I/F 3 V PCB
microprocessors and control 126
,
supply voltages 107 149
transmit path 110
Application Processor PCB
microprocessors and control 98
,
supply voltages 73 149
transmit path 78
Audio & Interconnect PCB
microprocessors and control 127
receive path 119
,
supply voltages 106 148
transmit path 109
Audio Interconnect & Data I/O PCB
microprocessors and control 127
receive path 119
NGT Transceiver System Technical Service Manual
,
supply voltages 107 149
transmit path 109
Audio Interface PCB
microprocessors and control 99
receive path 91
,
supply voltages 73 148
transmit path 77
Audio PCB
,
supply voltages 72 147
B
Backplane PCB
supply voltages 353
balance control
adjusting 185
bias
active
adjusting 184
gain
adjusting 182
brief description
3012 299
8571 331
high power 219
NGT
2010 55
2011/2012 63
NRI 259
C
capacitor
abbreviations 31
channel additions
NGT 129
checks
NGT 145
circuit reference designations 13
CMOS devices 26
compliance 17
electromagnetic compatibility and safety notices 21
earth symbols 22
electrical safety 22
electromagnetic compatibility 21
R&TTE Directive 19
declarations of conformity 19
product marking and labelling 19
protection of the radio spectrum 20
components
substitution 32
contact information 29
C-tick 24
CODAN
Index-1