SEND CALL
DECASE
AND PLACE
IN P654
CALL
RECEIVED?
CHECK
SENSITIVITY
NO
YES
OK
>3dBm LOW
YES
YES
NO
NO
NO
YES
NO
NO
YES
YES
NO
YES
`C'
`B'
* -70dBm CHANNEL FREQUENCY
1kHz TONE AT 3kHz DEVIATION.
OK
RECEIVER
O.K. CHECK
TRANSMITTER
CHECK TR322,
TR323 & IC302
CONNECT TEST
LEAD, DISABLE
BEC & ENABLE
SPEECH3V.
IS 1V LINE OK?
INJECT MODULATED
SIGNAL*.
IS 1kHz TONE PRESENT
AT SK301 PIN 7?
CHECK IF L302
FAULTY OR
CHECK IC302.
MISALIGNED.
IS 455kHz
PRESENT
AT IC302
PIN 5?
IS DATA
PRESENT AT
SK301 PIN 2?
RE-ALIGN
RECEIVER
INJECT 455kHz SIGNAL
AT 5µV TO C501.
MODULATE WITH 1kHz
TONE. IS 1kHz
PRESENT AT SK301
PIN 7?
CHECK C390,
FL305.
CHECK FL304
& IC302.
CHECK GATE
ARRAY (IC105).
CHECK DATA
FILTER AND
LIMITER, TR353,
TR325, IC302.
IS 455kHz
PRESENT
AT IC302
PIN 4?
CHECK RF STAGES.
PSG10167-1
RPR 563GS/KGS
TM1187A Issue C
Page 5 - 12
Figure 7: General Fault Finding Guide (2 of 3)
Содержание RPR 563GS
Страница 30: ...RPR 563GS KGS TM1187A Issue C Page 2 14 INTENTIONALLY BLANK...
Страница 34: ...RPR 563GS KGS TM1187A Issue C Page 3 4 Figure 1 Receiver Block Diagram...
Страница 42: ...RPR 563GS KGS TM1187A Issue C Page 3 12 INTENTIONALLY BLANK...
Страница 44: ...RPR 563GS KGS Page 4 2 TM1187A Issue C INTENTIONALLY BLANK...
Страница 57: ...RPR 563GS KGS TM1187A Issue C Page 5 13 Figure 8 General Fault Finding Guide 3 of 3...
Страница 84: ...RPR 563GS KGS Page 6 10 TM1187A Issue C INTENTIONALLY BLANK...
Страница 86: ...Page 7 2 INTENTIONALLY BLANK...
Страница 87: ...Page 7 25 Figure 12 Battery Pack Circuit Diagram...