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File name JVC KS-FX922R.pdf

KS-FX922R SERVICE MANUAL CASSETTE RECEIVER KS-FX922R Area Suffix E ... Continental Europe KS-FX922R DISP DAB TP RDS PTY 7 8 9 10 11 12 MO Contents Safety precaution ------------------------------------- 1-2 Location of main parts ------------------------------- 1-3 Disassembly method -------------------------------- 1-4 Adjustment method ---------------------------------- 1-11 Description of major ICs ---------------------------- 1-15 No.49596 COPYRIGHT 2001 VICTOR COMPANY OF JAPAN, LTD. Feb. 2001 KS-FX922R Adjustment method Test Instruments reqired for adjustment Tuner section BAND STEP 1.Digital osclloscope(100MHz) FM : 100kHz (Seek), 50kHz (Manual) 2.Frequency Counter meter 3.Electric voltmeter AM : 9kHz step 4.Wow & flutter meter 5.Test Tapes Preset Memory Initialization VT724 for DOLBY level measurement Preset Memory Band VT739 For playback frequency measurement M1 M2 M3 M4 M5 M6 VT712 For wow flutter & tape speed measurement FM(MHz) 87.5 89.9 97.9 105.9108.0 87.5 VT703 For head azimuth measurement AM(kHz) 153 216 603 999 1404 1620 6.Torque gauge Cassette type for CTG-N (mechanism adjustment) DUMMY LOAD Measuring conditions(Amplifier section) Exclusive dummy load should be used for AM and FM dummy load,there is a loss of 6dB Power supply voltage DC14.4V(10.5~16V) between SSG output and antenna input. The Load impedance 4 (2Speakers connection) loss of 6dB need not be considered since direct reading of figures are applied in this Line out 20k working standard. Standard volume position Balance and Bass,Treble volume .Fader Arrangement of Adjusting :Center(Indication"0") C