Casio EV-500C Service Manual & Parts List Download Page 6 | Manualshive

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VR100

T201 T200

ADJUSTMENT

LINEAR PCB

Items to Be Adjusted

Item

Measuring Instrument

VCC2-1 voltage setting

Voltmeter

Video detection coil adjustment

TV signal generator, pattern generator, oscilloscope,
low-pass filter

AFT coil adjustment

Sweep generator, oscilloscope, voltmeter

Contrast adjustment

TV signal generator, pattern generator, oscilloscope

Tint adjustment

TV signal generator, pattern generator, oscilloscope

AGC adjustment

TV signal generator, pattern generator, IF levelmeter

Vcom adjustment

Photo diode, photo sensor amp., bandpass filter, oscilloscope

Free-Running frequency adjustment

Frequency counter

Adjustment and Test Point Locations

Top View

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Summary of Contents for EV-500C

Page 1: ...R without price JUN 1995 EV 500C KX 615C EV 500D KX 615D EV 500I KX 615I EV 500N KX 615N INDEX ...

Page 2: ... 3 CIRCUIT DESCRIPTION 4 ADJUSTMENT 5 TROUBLESHOOTING 10 PRINTED CIRCUIT BOARDS 11 WIRING DIAGRAM 13 EXPLODED VIEW 14 ELECTRICAL PARTS LIST 15 MECHANICAL PARTS LIST 22 IC AND TRANSISTOR LEAD IDENTIFICATION 23 SCHEMATIC DIAGRAMS 25 WAVEFORMS 28 ...

Page 3: ...nals External power jack 6 0 V DC IN External antennea jack 3 5ø mini Audio Video jack 3 5ø 8 Screen size 2 5 inches 9 No of Picture element 61 380 220 279 dots 10 Dimensions 75 W 26 7 D 120 8 H mm 3 W 1 D 4 3 4 H 11 Weight 191 g excepting batteries 6 7 oz excepting batteries 12 Standard accessories Test batteries R6 3 AC adaptor AD K65 64 13 Options Car adaptor CA K65 RF connector CF 13 Antenna m...

Page 4: ...200 2SC4238 Amplifies the video IF signal output from tuner TU200 by 10 times 20 dB 3 Video det Sound det FM det AFT AGC IC200 M51348FP Eliminates the carrier wave in the video IF signal and picks up the video signal and the sound IF signal Also the sound signal is picked up from the sound IF signal by FM detection 4 Audio amp IC600 NJM2070M Sound amplification 5 Chroma circuit IC300 IR3P90Y Gener...

Page 5: ...100 u L102 330 u CP110 CP111 CP113 CP114 CP115 C110 25 V 10 C114 6 3 V 220 C116 6 3 V 220 C120 35 V 22 R150 33 K Vcc2 2 Vcc7 29 5 V Vcc6 11 V Vcc2 1 4 5 V VEE1 7 5 V VEE2 18 V GND 3 9 V C112 16 V 47 C118 16 V 22 C150 OPEN CIRCUIT DESCRIPTION POWER SUPPLY Figure 1 Name Voltage Function VCC2 1 4 50 0 02 V Main voltage VCC7 25 9 31 3 V Tuning voltage VCC6 10 8 12 0 V Display voltage VEE1 8 5 7 5 V Di...

Page 6: ...l adjustment Sweep generator oscilloscope voltmeter Contrast adjustment TV signal generator pattern generator oscilloscope Tint adjustment TV signal generator pattern generator oscilloscope AGC adjustment TV signal generator pattern generator IF levelmeter Vcom adjustment Photo diode photo sensor amp bandpass filter oscilloscope Free Running frequency adjustment Frequency counter Adjustment and Te...

Page 7: ...11 VR300 T300 IF Pad VCC2 1 Voltage Setting Input Input Input Output Output Connection Point Signal Connection Point Adjust Result Adjust to obtain a 4 50 0 02 V reading on the voltmeter Voltmeter VR100 TP1 TP1 16 169 Equipment Connection Adjustment Procedure Bottom View Output Voltmeter EV 500 set ...

Page 8: ... the IF pad to open Voltmeter Oscilloscope Sweep generator Pattern generator Signal generator Input TP2 CP312 KILLER Oscilloscope Vcc2 3 EV 500 set 10 kohm Adjust so that the step form wave becomes 2 2 0 1 Vp p Adjust to obtain the minimum DC level Low pass filter Oscilloscope 2 2 0 1 V P P Input TP2 EV 500 set Output TP3 Low pass filter Pattern generator Signal generator Oscilloscope Sweep genera...

Page 9: ...ses A and B is less than 0 2 V Pulse B Pulse A AGC Adjustment Signal generator Pattern generator EV 500 set IF levelmeter Input TP7 Output TP2 Short the IF pad Pattern generator TV signal generator TP7 VR200 IF levelmeter TP2 Color bar 65 5 dBµ Adjust to obtain a 84 2 dBµ reading on the IF levelmeter Vcom Adjustment EV 500 set Oscilloscope Output TP8 Color bar 38 9 MHz EV 200C I N 39 5 MHz EV 200D...

Page 10: ...Oscilloscope Photo sensor amp Input Input Input Output Output Connection Point Signal Connection Point Adjust Result Adjust to obtain the minimum ripple VR303 Photo sensor amp Bandpass filter Oscilloscope Free Running Frequency Adjustment Frequency counter VR740 TP6 Output TP6 Frequency counter EV 500 set Adjust to obtain a reading of 15 625 0 1 kHz ...

Page 11: ...200 Replace Defective Q200 Replace Defective IC200 Replace Defective IC300 Replace Defective IC270 Replace Defective IC700 Replace Defective F201 Replace Defective IC200 Replace Defective IC600 Replace Defective phone jack JK600 Replace Defective tuner TU200 Replace Defective IC270 Replace Defective power switch SW100 Replace No reception of VHF or UHF No picture and no sound ...

Page 12: ...1 C781 C752 C725 L301 L310 C374 C375 C312 R312 H300 C306 C353 C352 R736 R737 FU100 D180 C376 C381 C380 C355 R302 C215 JK250 JK600 C301 C315 C300 C334 C333 C305 JK100 VR304 VR600 CN700 T201 T200 R758 Q750 R759 C210 F203 F202 F201 R212R209R222 C245 C259 C236R223 R227 R224 R230 C257 R229 C205 C207 C208 F200 TU200 615C L C606 PRINTED CIRCUIT BOARDS TOP VIEWS Linear BL 615BL CN702 L950 R720 Q 9 5 0 R95...

Page 13: ... R332R333 R645 HP600 HP601 R352 C249 C243 C239 L200 R204 Q200 C237 R207 HP200 VR200 Q270 IC270 C234 R210 C230 R272 R271 C270 R175 C105 R113 CP200 CP204 CP207 CP208 CP209 CP210 CP221 CP206 Q101 R170 R107 R275 R108 R110 Q111 C146 D110 D100 D156 D154 L740 C771 C770 CP741 R749 C786 C787 C788 C262 C264 CP245 CP235 R226 C250 L202 R247 C791 R246 R228 CP240 CP790 CP794 CP706 CP791 C795 C796 C792 C787 CP32...

Page 14: ...81 C752 C725 L301 L310 C374 C375 C312 R312 H300 C306 C353 C352 R736 R737 FU100 D180 C376 C381 C380 C355 R302 C215 JK250 JK600 C301 C315 C300 C334 C333 C305 JK100 VR304 VR600 CN700 T201 T200 R758 Q750 R759 C210 F203 F202 F201 R212R209R222 C245 C259 C236R223 R227 R224 R230 C257 R229 C205 C207 C208 F200 TU200 615C L C606 615BL CN702 L950 R720 Q 9 5 0 R950 Q951 C925 T950 CN950 C927 1 4 4 1 WIRING DIAG...

Page 15: ... 14 2 3 6 5 6 15 16 17 18 6 7 8 10 11 3 12 14 13 3 9 4 1 2 1 2 4 2 2 2 3 2 6 2 5 2 7 5 2 5 1 8 1 8 3 8 2 17 1 20 19 EXPLODED VIEW ...

Page 16: ...20 C C236 2892 0059 Chip capacitor GR40Y5V103Z50PT 1 1 20 C C237 2892 0059 Chip capacitor GR40Y5V103Z50PT 1 1 20 C C239 2897 0245 Chip capacitor GR40CH180J50PT 1 0 20 C C239 2897 0350 Chip capacitor GR40CH160J50PT 0 1 20 C C240 2892 0059 Chip capacitor GR40Y5V103Z50PT 1 1 20 C C243 2892 0059 Chip capacitor GR40Y5V103Z50PT 1 1 20 C C245 2892 0083 Chip capacitor GR40W5R103K50PT 1 1 20 C C246 2892 00...

Page 17: ... GR40Y5V104Z25PT 1 1 20 C C631 2897 0364 Chip capacitor GR40W5R392K50PT 1 1 20 C C710 2806 9490 Electrolytic capacitor V 50RC2 3R3 G10 1 1 20 C C725 2897 2177 Chip capacitor TMK316B224K T 1 1 20 C C746 2892 0040 Chip capacitor GR40Y5V104Z25PT 1 1 20 C C751 2892 0040 Chip capacitor GR40Y5V104Z25PT 1 1 20 C C752 2892 0059 Chip capacitor GR40Y5V103Z50PT 1 1 20 C C770 2845 4802 Chip capacitor EMK316F2...

Page 18: ... Chip inductor NLC322522 101K TP 1 1 20 C L310 3013 1043 Chip inductor NLC322522 101K TP 1 1 20 C L740 3013 1848 Chip inductor BK2125HS601 T 1 1 20 C L756 3013 1911 Chip inductor LK2125 330K TP 1 1 20 C Transistors Q101 2253 0133 Chip transistor 2SD1819A R TX 1 1 20 C Q110 2253 0133 Chip transistor 2SD1819A R TX 1 1 20 C Q111 2253 0308 Chip transistor 2SD1119 R TX 1 1 10 C Q200 2252 0707 Chip tran...

Page 19: ...V 1 1 20 C R271 2797 3983 Chip resistor RR1220P 473 D 1 0 20 C R271 2797 1533 Chip resistor ERJ 6GEYF473V 0 1 20 C R272 2797 3976 Chip resistor RR1220P 472 D 1 0 20 C R272 2797 1526 Chip resistor ERJ 6GEYF472V 0 1 20 C R275 2791 0750 Chip resistor ERJ 6GEYJ223V 1 0 20 C R276 2791 1390 Chip resistor ERJ 6GEYJ473V 1 0 20 C R276 2792 0110 Chip jumper ERJ 6GEY0R00V 0 1 20 C R277 2791 0305 Chip resisto...

Page 20: ... R711 2791 0815 Chip resistor ERJ 6GEYJ102V 1 1 20 C R715 2791 0607 Chip resistor ERJ 6GEYJ333V 1 1 20 C R716 2791 0313 Chip resistor ERJ 6GEYJ103V 1 1 20 C R736 2791 0305 Chip resistor ERJ 6GEYJ472V 1 1 20 C R737 2791 0305 Chip resistor ERJ 6GEYJ472V 1 1 20 C R739 2797 1015 Chip resistor ERJ 6GEYK225V 1 1 20 C R740 2797 3962 Chip resistor ERJ 6GEYF394V 1 1 20 C R741 2791 2079 Chip resistor ERJ 6G...

Page 21: ...ip semi fixed resistor POZ3AN 1 202N T00 1 1 20 C VR200 2775 1820 Chip semi fixed resistor POZ3AN 1 503N T00 1 1 20 C VR300 2775 1813 Chip semi fixed resistor POZ3AN 1 203N T00 1 1 20 C VR303 2775 1820 Chip semi fixed resistor POZ3AN 1 503N T00 1 1 20 C VR304 2765 1708 Volume XV081PV1NB10K3017 1 1 10 C VR600 2765 1708 Volume XV081PV1NB10K3017 1 1 10 C VR740 2775 1806 Chip semi fixed resistor POZ3A...

Page 22: ...11 1 1 20 C CN950 3500 7122 Pin ass y 53253 0310 1 1 20 C Transistors Q950 2253 0287 Chip transistor 2SD965 R 1 1 10 C Q951 2253 0287 Chip transistor 2SD965 R 1 1 10 C Resistors R720 2609 0371 Carbon film resistor ERD S2TJ472A 1 1 20 C R950 2609 0266 Carbon film resistor ERD S2TJ821A 1 1 20 C Switches SW700 3412 1029 Switch SKHHAL 1 1 20 C SW701 3412 1029 Switch SKHHAL 1 1 20 C Transformer T950 30...

Page 23: ...441 3 1 1 1 1 20 X 6 5860 0420 Screw BT3 1 7X4 Ni 6 6 6 6 20 X 7 6609 9220 Switch knob A K615 K340117 1 1 1 1 1 20 C N 8 6610 4340 Linear PCB ass y K340220 2 1 1 1 0 1 B N 8 6610 4290 Linear PCB ass y K340220 4 0 0 0 1 1 B 8 1 6609 9090 Flat cable A K615 K340176 1 1 1 1 1 10 C 8 2 6610 0520 Cushion A K615 K440355 1 1 1 1 1 20 X 8 3 6610 2350 Cushion B K615 K440411 1 1 1 1 1 20 X 9 3851 1267 Rod an...

Page 24: ... 6 OUT GND 4 5 GND IC600 NJM2070M IC701 S 81230SG GND 1 5 NC VIN 2 OUT 3 4 NC IC300 IR3P90Y 1 8 2 7 3 6 4 5 NC 37 24 KILLER F RGB AMP 38 23 PICTURE FRP 39 22 TIME CONST RGB INV 40 21 SYNC IN B SUB BRI 41 20 SYNC OUT R SUB BRI 42 19 SYNC SEP BRIGHT 43 18 H F OUT GANMA2 44 17 APL GANMA1 45 16 CLAMP PEEK LIMITTER 46 15 TRAP B SUB CONT 47 14 AGC F R SUB CONT 48 13 AGC SW 1 36 B OUT CONT 2 35 DCDET EXT...

Page 25: ...7 38 39 40 41 42 IC700 MSM6770GS TRANSISTORS M11 M3 M4 M7 TSI6 TSI5 TSI4 TSI3 GRES GPCK GSRT SRT OE HCNT CLR VLB TU PWM UHF VBAR UBAR SW VMUTEB FRP HDB CSYNC AFTO VDD3 TUO VSS3 AMUTEB AFTI KDB KCB VDB M5 M6 VDD1 MBUF VSS2 SYF AVB M1 M2 VL1 VH1 V1 VREF OSC ADJ VDD1 PD VCO VSS1 VDD2 TSI1 TSI2 MCLK 2SB709A 2SC4238 2SD601A 2SD1149 S C B E 2SD1119 C B E C 2SB1218A 2SC4238 2SD1819A DTC144EUW 2SD1119 43 ...

Page 26: ... 1 All resistance values are indicated in ohms k 103 ohms M 106 ohms 2 All capacitance values are indicated in µF p 10 6 µF 3 All inductance values are indicated in µH TP7 TP2 1 IF Pad 3 TP3 TP4 4 9 8 TP1 12 13 14 15 16 10 11 TP6 6 2 TP5 5 17 TP8 7 ...

Page 27: ...re indicated in ohms k 103 ohms M 106 ohms 2 All capacitance values are indicated in µF p 10 6 µF 3 All inductance values are indicated in µH LINEAR EV 500D TP7 TP2 1 IF Pad 3 TP3 TP4 4 9 8 TP1 12 13 14 15 16 10 11 TP6 6 2 TP5 5 17 TP8 7 ...

Page 28: ... 27 BL Notes 1 All resistance values are indicated in ohms k 103 ohms M 106 ohms 2 All capacitance values are indicated in µF p 10 6 µF 3 All inductance values are indicated in µH ...

Page 29: ... V 4 IC200 pin 18 64 µs 4 5 V 5 IC300 pins 32 34 36 64 µs 4 4 V 6 IC300 pin 21 125 µs 4 4 V 7 IC300 pin 39 12 µs 1 5 V 8 Q111 base 12 µs 10 V 9 Q111 collector 64 µs 2 8 V 0 IC700 pin 1 125 µs 2 8 V A IC700 pin 2 64 µs 2 8 V B IC700 pin 3 64 µs 2 8 V C IC700 pin 4 64 µs 4 5 V E IC700 pin 6 3 µs 4 5 V D IC700 pin 5 ...

Page 30: ... 29 125 µs 5 V G IC300 pin 30 4 5 V 64 µs F IC700 pin 7 ...

Page 31: ...8 11 10 Nishi Shinjuku Shinjuku ku Tokyo 160 Japan Telephone 03 3347 4926 ...

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