Table Of Contents - JRC JRL-2000F Service Manual

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Contents
Preface ______________________________ -_ ________ _; __ ; . . _____________ ..:_;.. _______
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1 . S pecifi cati o ns ------------------------------------------------------------------------------------- 3
2. Ci rcu it Description -------------------------------------------------------------------------------4
2.1 Gonfiguration and Outline -------------------------------------------------------------------4
2.2 NAH-232 Power Amplifier Unit --------------~----------------------------------------------4
2.2 .1 CAH-377 Power Amplifier ---------------------------------------------------------------4
2.2.2 CCB-367 PA Control ---..:------------------------------------------------------------------6
2.2.3 CFF-361 Power Combiner ---------------------------------------------------------------9
2.3 NBL -169 Power Supply Unit ----------------------------------------------------------------9
2.3.1 CSA-222 Relay Circuit --------------------------------------------------------------------1 0
2.3.2 CBB-13 Power Factor Corrector -------------------------------------------------------1 0
2.3.3 CBG-68 Main PS Unit --------------------------------------------------------------------11
2.3.4 CFR-1 02 Noise Filter ---------------------------------------------------------------------12
2.4 CFG-111 Matehing Circuit ------------------------------------------------------------------12
2.5 CSC-433 Antenna Switch -------------------------------------------------------------------14
2.6 CDJ-1143 Control Crcuit --------------------------------------------------------------------15
2. 7 Automatie Tuning -----------------------------------------------------------'-------------------17
2.8 CML -334 Display ------------------------------------------------------------------------------20
2.9 CSD-387 Switch Panel ----------------------------------------------------------------------20
3. Troubles hooti ng ----------------------------------------------------------------------------------21
4. Cantirrnation of Operation and Readjustment --------------------------------------------26
4.1 Outline -------------------------------------------------------------------------------------------26
4.2 Adjustment of 2 PA Units --------------------------------------------------------------------26
4.2.1. Adjustment of Heat Sensor-------------------------------------------------------------- 26
4.2.2 Adjustment of ldling Current ------------------------------------------------------------27
4.3 Adjustment of Power Supply Unit ---------------------------------------------------------28
4.3.1 Adjustment of Output Valtage ----------------------------------------------------------28
4.4 Total Adj ustment ------------------------------------------------------------------------------28
4.4.1 Adjustment of Meter----------------------------------------------------------------------- 28
4.4.2 Adjustment of APC Circuit ---------------------------------------------------------------29
4.4.3 Adjustment of ALC Circuit ---------------------------------------------------------------29
4.4.4 Adjustment of the VSWR Meter-------------------------------------------------------- 29
5. External View --------------------------------------------------------------------------------------30
6. Block Diagram ----------------------------------------------------''"------------------------------- 34
7. Conn ection Diagram ----------------------------------------------------------------------------37
8. Print Circuit Board Layout ---------------------------------------------------------------------55
9. Replacement Parts List ------------------------------------------------------------------------72
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