Kenwood CS-5230 Service Manual

Also see for CS-5230: Instruction manual

18ADJUSTMENTVagusment [pe —Ss=~—~—~S ode SCSCS~*X80-1370 V.MODE: CH1, CH2. AC-DC: GND (both CH),X74-1580 VOLTS: 10 mV (both CH), H.DISP: X-Y, R/O: OFF1) Move the spot to the CRT center by operating the POS! controls.2) Attach the multimeter probes across P5-1 and GND of X80-1370 and adjustVR4 to the voltage 33.5 V.3) Attach the multimeter probes across P7-1 and GND of X74-1580 and adjustVR303 so that the voltage is 70 V.4) Attach the probe to P7-4 and ensure that the voltage reading is approx. 70V.Operating voltageX74-1580 V.MODE: CH1, CH2, AC-DC: GND (both CH),VOLTS: 10 mV (both CH), H.DISP: X-Y1) Move the spot to the CRT center by operating the POSi controls.2) Adjust the spot to the best point with FOCUS on the panel and ASTIG(VR305).3) Set FOCUS on the panel to the 12:00 position and adjust VR201 to move thespot to the best point.Focus Center andASTIGV.MODE: CH1, CH2. AC-DC: GND (both CH),VOLTS: 10 mV (both CH), H.DISP: X-Y1) Set INTEN to the 10:00 position.2) At the 10:00 position, adjust so that the spot disappears.Intensity VR202 X74-1580V.MODE: CH1, CH2. AC-DC: GND (both CH),POSI VR2 (POSI) VOLTS: 10 mV (both CH), H.DISP: A,* In case the R/O unit R/O: ON, A.SWEEP: 1 msis not used, ignore 1) Set the R/O display to 6.00 by operating the cursor POSI controls.this item. 2) Adjust VR3 and VR2 so that the interval between cursors is 6 div.3) Maximize the cursor interval by operating the cursor POSI controls.4) Adjust VR2 to make it uniform.Cursor Y-Gain and VR3 (Gain) X80-1370V.MODE: CH1, CH2. AC-DC: GND (both CH),VOLTS: 10 mV (both CH), H.DISP: A,R/O: ON (1/AT), A.SWEEP: 1 ms1) Set the R/O display to 8.00 by operating the cursor POSI controls.2) Adjust VR304 and V306 so that the cursor interval is 8 div..3) Maximize the cursor interval by operating the cursor POS! controls.4) Adjust VR306 to make it uniform.In case the R/O unit is not used, VR304 is to be adjusted in the SWEEP TIME1 ms adjustment.VR304 (Gain)VR306 (POS!)Cursor X-Gain and X74-1580POS!* In case the R/O unitis not used, adjustonly VR304, The VRcan be used toadjustthe length ofthe SWEEP TIME 1Ms trace.CH1 Gain VR1 (10 mV)VR102(1mV)V.MODE: CH1, AC-DC:DC, H.DISP: A,VOLTS: 10 mV, VARI: CAL.1) Input a 50 mV square wave signal.2) Adjust so that the amplitude is 5 div. (10 mV range)3) Switch VOLTS to 1 mV and input a 5 mV square wave signal.4) Adjust so that the amplitude is 5 div. (1 mV range)X80-1370X73-2070CH2 Gain VR207(10 mV)VR202(1mV)V.MODE: CH2, AC-DC: DC, H DISP: A,VOLTS: 10 mV, VARI: CAL.1) Input a 50 mV square wave signal.2) Adjust so that the amplitude is 5 div. (10 mV range)3) Switch VOLTS to 1 mV and input a 5 mV square wave signal.4) Adjust so that the amplitude is 5 div. (1 mV range)X73-2070