Casio EV-500C Service Manual & Parts List

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INDEX
EV-500C
EV-500D
EV-500I
EV-500N
JUN. 1995
(without price)
(KX-615C)
(KX-615D)
(KX-615I)
(KX-615N)
R

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  Summary of Contents for Casio EV-500C

  • Page 1 (without price) EV-500C (KX-615C) EV-500D (KX-615D) EV-500I (KX-615I) EV-500N (KX-615N) JUN. 1995 INDEX...
  • Page 2: Table Of Contents

    CONTENTS SPECIFICATIONS ..................2 BLOCK DIAGRAM ..................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 ........
  • Page 3: Specifications

    SPECIFICATIONS Item Specification EV-500C,N: VHF: 2 ~ 12 ch UHF: 21 ~ 69 ch EV-500D: VHF: — UHF: 21 ~ 68 ch Reception channels EV-500I: VHF: A ~ H2ch UHF: 21 ~ 69 ch Power voltage DC 6.0 V Power consumption Approx.
  • Page 4: Block Diagram

    BLOCK DIAGRAM Antenna 3 IC200 1 TU200 2 Q200 4 IC600 Speaker Video VR600 Sound Det. Audio Tuner IF Amp. Amp. AFT Circuit Volume AGC Circuit Control IC270 IC300 Tuning Voltage Chroma Generator Circuit IC700 Display Control Auto-Tuning Control VCC2 (4.5 ± 0.02 V) VCC7 (25.9 ~ 31.3 V) Power VCC6 (10.8 ~ 12.0 V)
  • Page 5: Circuit Description

    CIRCUIT DESCRIPTION POWER SUPPLY Vcc1-1 L102 Vcc2-2 330 u (3.9 V) D158 MA143A T100 CP100 Vcc7 (29.5 V) R160 LC12U-35 CP110 C146 (D: 180) Vcc6 (11 V) 220 p Q110 2SD1819A-R D156 MA142WK CP111 Q111 Vcc2-1 (4.5 V) L101 2SD1119-R D100 C137 R107...
  • Page 6: Adjustment

    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...
  • Page 7 TP2(CP221) IF Pad TP7(CP207) VR200 TP3(CP245) TP4(CP240) TP1(CP113) TP8(VCOM) VR740 TP6(CP311) VR303 TP5(CP323) VR300 T300 Bottom View Equipment Connection / Adjustment Procedure VCC2-1 Voltage Setting EV-500 16-169 Voltmeter Output Input Input Input Output Output Adjust Result Connection Point Signal Connection Point Adjust to obtain a 4.50 ±...
  • Page 8 Video Detection Coil Adjustment * Desolder the IF pad to open. EV-500 Pattern Signal generator generator Oscilloscope Low-pass filter Input Output Input Input Input Output Output Adjust Result Connection Point Signal Connection Point Color bar Pattern 38.9 MHz generator Low-pass filter Adjust to obtain the minimum (EV-200C,I,N) T200...
  • Page 9 BCC Adjustment * Desolder the IF pad to open. Pattern Signal EV-500 generator generator Oscilloscope Input Output TP5(VC) Input Input Input Output Output Adjust Result Connection Point Signal Connection Point Color bar Adjust T300 so that the Pattern 38.9 MHz difference Pulse A Pulse B...
  • Page 10 Vcom Adjustment * Place a photo diode on the middle of the display plate. Photo sensor amp. EV-500 Oscilloscope Photo Bandpass diode filter AV-C1 Audio/Video jack Input Input Input Output Output Adjust Result Connection Point Signal Connection Point Photo sensor amp.
  • Page 11: Troubleshooting

    TROUBLESHOOTING Symptom Cause Solution No power supply Defective power switch (SW100). Replace. No picture and Defective DC-DC converter (T100). Replace. no sound Defective tuner (TU200). Replace. Defective Q200. Replace. Defective IC200. Replace. Defective IC300. Replace. Defective IC270. Replace. Defective IC700. Replace.
  • Page 12: Printed Circuit Boards

    PRINTED CIRCUIT BOARDS TOP VIEWS Linear JK200 F200 C202 C225 C208 R212R209R222 R224 TU200 R230 C257 T201 T200 C145 VR100 R105 C210 TM100 T100 R758 C116 L102 SW100 C100 Q750 C114 L101 R715 C746R780 C710 Q710 R707 IC700 R706 R705 615C-L C606 R703...
  • Page 13 BOTTOM VIEWS Linear CP224 C242 R203 C240 R205 R202 R208 C246C236 CP204 CP200 CP206 Q200 R201 CP207 CP221 CP209 CP210 CP208 R211 C233 VR200 IC200 C232C231 C200 R270 R276 CP211 IC270 R277 R241 R239 R225 Q272 C261 C263 C271 CP110 C137 R115 C140 Q101...
  • Page 14: Wiring Diagram

    WIRING DIAGRAM TOP VIEWS Linear PCB JK200 F200 C202 C225 C208 R212R209R222 R224 TU200 R230 C257 T201 T200 C145 VR100 R105 C210 TM100 T100 R758 C116 L102 SW100 C100 Q750 C114 L101 C746R780 R715 C710 Q710 R707 IC700 R706 R705 615C-L C606 R703...
  • Page 15: Exploded View

    EXPLODED VIEW 17-1 — 14 —...
  • Page 16: Electrical Parts List

    ELECTRICAL PARTS LIST Linear PCB No. 1 FOB Japan Quantity Item Code No. Parts Name Specification N.R.Yen C/I/N D Unit Price Capacitors C100 2800 9175 Electrolytic capacitor (V) 6.3RC2-220MS 1 20 C105 2845 4802 Chip capacitor EMK316F225Z-T 1 20 C110 2806 9329 Electrolytic capacitor (V) 25RC2-10MS 1 20...
  • Page 17 Linear PCB No. 2 FOB Japan Quantity Item Code No. Parts Name Specification N.R.Yen C/I/N D Unit Price C334 2892 0300 Chip capacitor GR40CH470J50PT 1 20 C335 2892 0105 Chip capacitor GR40CH080D50PT 1 20 C336 2892 0059 Chip capacitor GR40Y5V103Z50PT 1 20 C337 2892 0059 Chip capacitor...
  • Page 18 Linear PCB No. 3 FOB Japan Quantity Item Code No. Parts Name Specification N.R.Yen C/I/N D Unit Price F201 3025 0721 SIF filter SFSL6.0MDB12 1 10 F202 3851 1148 Ceramic discriminator CDSL5.5MC30B12 0 10 F202 3851 1141 Ceramic discriminator CDSL6.0MC30B12 1 10 F203 3850 1372 SIF trap...
  • Page 19 Linear PCB No. 4 FOB Japan Quantity Item Code No. Parts Name Specification N.R.Yen C/I/N D Unit Price R175 2792 0110 Chip jumper ERJ-6GEY0R00V 1 20 R201 2791 2117 Chip resistor ERJ-6GEYJ820V 1 20 R202 2791 2095 Chip resistor ERJ-6GEYJ682V 1 20 R203 2791 0720 Chip resistor...
  • Page 20 Linear PCB No. 5 FOB Japan Quantity Item Code No. Parts Name Specification N.R.Yen C/I/N D Unit Price R333 2797 2170 Chip resistor ERJ-6GEYF363V 1 20 R334 2797 1750 Chip resistor ERJ-6GEYF273V 1 20 R335 2797 2275 Chip resistor ERJ-6GEYF243V 1 20 R350 2791 0313 Chip resistor...
  • Page 21 Linear PCB No. 6 FOB Japan Quantity Item Code No. Parts Name Specification N.R.Yen C/I/N D Unit Price Thermister TM100 2775 1085 Chip thermister 157-102-53031-TP 1 20 Tuners TU200 1013 5315 Tuner TEPE5-01 TU200 1013 5525 Tuner TEPB5-02 Variable resistors VR100 2775 1799 Chip semi-fixed resistor POZ3AN-1-202N-T00...
  • Page 22 BL PCB FOB Japan Quantity Item Code No. Parts Name Specification N.R.Yen C/I/N D Unit Price Capacitors C925 2825 0392 TF capacitor ECQ-V1H154JL 1 20 C927 2813 3213 Ceramic capacitor DE0405SL270J2K 1 20 Coil L950 3013 0756 Choke coil RCH-875-101K Connectors CN702 3501 7182 Connector...
  • Page 23: Mechanical Parts List

    MECHANICAL PARTS LIST FOB Japan Quantity Item Code No. Parts Name Specification N.R.Yen Unit Price 6610 1140 Display plate CIM-K615 K440169-3 6610 2100 Display plate IAM-K615 K440169-4 6610 2640 Display plate DIM-K615 K440169-6 6609 9365 Upper case ass'y K340219*1 6610 2250 Upper case ass'y K340219*2 6610 2767 Upper case ass'y K340219*3...
  • Page 24: Ic And Transistor Lead Identification

    IC AND TRANSISTOR LEAD IDENTIFICATION IC/LSI IC200 IC270 M51348FP BA10358F IF AGC OUT IF AGC ADJ OUT1 IF AGC IN SyOUT –IN1 OUT2 RF AGC SyIN +IN1 IN2– AGCDL AFTC IN2+ VCCv IFIN IC600 NJM2070M IFIN VIDEO GNDv VCCs SIFOUT SIFIN –IN GNDs...
  • Page 25 IC700 MSM6770GS TU PWM VBAR TSI6 UBAR TSI5 TSI4 VMUTEB TSI3 GRES GPCK CSYNC GSRT AFTO VDD3 HCNT VSS2 VSS3 TRANSISTORS 2SD1119 2SB1218A 2SC4238 2SD1119 2SD601A 2SB709A 2SD1819A 2SD1149-S 2SC4238 DTC144EUW — 24 —...
  • Page 26: Schematic Diagrams

    SCHEMATIC DIAGRAMS LINEAR (EV-500C/I/N) IF Pad 14 15 Notes: 1. All resistance values are indicated in "ohms" (k=10 ohms, M=10 ohms). µF). 2. All capacitance values are indicated in "µF" (p=10 3. All inductance values are indicated in "µH." — 25 —...
  • Page 27 LINEAR (EV-500D) IF Pad 14 15 Notes: 1. All resistance values are indicated in "ohms" (k=10 ohms, M=10 ohms). µF). 2. All capacitance values are indicated in "µF" (p=10 3. All inductance values are indicated in "µH." — 26 —...
  • Page 28 Notes: 1. All resistance values are indicated in "ohms" (k=10 ohms, M=10 ohms). µF). 2. All capacitance values are indicated in "µF" (p=10 3. All inductance values are indicated in "µH." — 27 —...
  • Page 29: Waveforms

    WAVEFORMS 64 µs 64 µs 64 µs 1 Q200 collector 2 IC300 pin 20 3 IC200 pins 19, 20 64 µs 64 µs 64 µs 5 IC300 pins 32, 34, 36 6 IC300 pin 21 4 IC200 pin 18 125 µs 12 µs 12 µs 7 IC300 pin 39...
  • Page 30 64 µs 125 µs F IC700 pin 7 G IC300 pin 30 — 29 —...
  • Page 31 8-11-10, Nishi-Shinjuku Shinjuku-ku, Tokyo 160, Japan Telephone: 03-3347-4926...

This manual is also suitable for:

Ev-500dEv-500iEv-500nKx-615cKx-615dKx-615i ... Show all