Casio QV-300 (B) Service Manual & Parts List
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Casio QV-300 (B), — 5 — 1 2 3 4 5 6 7 8 1 2 3 5 4 VCC1 VCC1 IC505 VCC1 VCC1 R515 Q514 1 2 3 C523 VCC3-1 VCC3-1 KEY0 KEY2 PON KEY1 VCC3-1 VCC3-1 GND GND CN601 FU500 R516 IC507 C548 R511 C254 R514 C521 R517 R510 1 2 3 4 8 7 6 5 R512 Q503 R513 Q513 R509 Q512 1 1 1 2 3 2 2 3 3 C520 C531 ++ OUT VDD GND NC NC CK D Q GND VCC PR CLR Q OUT VCC GND INA INB 3 2 1 4 5 1 PON from Key PCB 2 APO from Pin 42 of IC600 6 Voltage detection signal 3 POB to Pin102 of IC600 4 FACT from Pin 36 of IC600 5 Power ON to Pin 3 of Q505 POWER SUPPLY
Casio QV-300 (B), — 9 — DISASSEMBLY 2. Remove the two screws on the bottom of the unit and the battery cover. Then remove the upper case at the bottom of the unit. 3. Then remove the upper case at the top of the unit. 4. Be careful not to lose the switch knob. Switch knob Hook To disassemble the main unit 1. Rotate the camera unit then remove the two screws on the side of the unit.
Casio QV-300 (B), MAIN COMPONENT Item Code No. Parts Name Specification Q R 1 6611 6760 Upper case K727AAA C140275-2 1 X 2 6611 0680 R-P knob K724AAA C340701-1 1 X 3 6611 0440 Power switch knob K724AAA C340700-1 1 X 4 6611 7880 Power switch spring K727AAA R440130-1 1 X 5 6611 7870 Rating plate K727BBA C441158-5 1 X 6 6603 8924 C knob A-K310 K3741D-1 1 X 7 6611 0470 Battery label K724AAA C441180-1 1 X 8 6611 0690 Tape for LCD K724AAA C441068-1 1 X 9 2725 1329 LCD COD25T2018RB 1 B 10 6611 0700 Spacer for LCD K724AAA C441069-1 1 X 11 6611 0384 BL block C340812*1 1 B 12 6611 7856 Linear PCB ass'y R240051*1 1 B 12-1 66
Casio QV-300 (B), — 7 — Power off by APO 1. PON 2. APO 3. POB 4. FACT 5. Power On 6. Voltage detection Power off by low voltage detection 1. PON 2. APO 3. POB 4. FACT 5. Power On 6. Voltage detection H (VCC1) H (VCC3) L H (VCC3) L L H (VCC1) L H (VCC0) H (VCC1) L H (VCC3) L L H (VCC1) L H (VCC0) L Forced power on by FACT 1. PON 2. APO 3. POB 4. FACT 5. Power On 6. Voltage detection H (VCC1) L L H (VCC3) L H (VCC1) L H (VCC0)
Casio QV-300 (B), — 2 — BLOCK DIAGRAM CCD Camera Unit IC700 HG51D291FE Digital PCB IC703 LC99092-Z03 8 bit to 16 bit converter Color processor IC602 KM29V32000T 32Mbit Flash memory IC601 HM51W4260 4Mbit DRAM IC701 µPD482445LGW 4Mbit VRAM IC702 µPD6461GS On screen display VRAM contoroller Video encoder D/A converter ROM RAM Direct memory access controller Bus state controller Serial communication interface IC600 HD6437042Y03F Data compressor expander Video out Key PCB A/D converter Lens Digital I/O IC300 IR3P90Y1 Chroma circuit IC400 MSM6770CGS Display controller Linear PCB Power supply Pow
PARTS LIST LINEAR PCB ASS'Y Item Code No. Parts Name Specification Q R Diodes D101 7101 1194 Chip diode MA111-(TX) 1 C D102 2390 1379 Schottoky diode MA729-(TX) 1 C D103 2390 1379 Schottoky diode MA729-(TX) 1 C D104 7101 1194 Chip diode MA111-(TX) 1 C D105 2390 1379 Schottoky diode MA729-(TX) 1 C D106 2360 2359 Chip zener diode MA8180-L(TX) 1 C Fuse FU100 312
Casio QV-300 (B), — 8 — TROUBLESHOOTING No Display 1. Check the fuse (FU500) on the digital PCB. 2. Check the fuse (FU100) on the linear PCB. 3. Check the jack (JK500) on the digital PCB. 4. Check the power switch (SW900) on the key PCB. 5. Check the flat cable between the digital and linear PCBs. 6. Check the back light. 7. Check the LCD. No Display at Record Mode 1. Check the camera unit. Defect of the Camera Unit The camera unit must be replaced with whole unit when it is defective, because the precise adjust
Casio QV-300 (B), — 21 — 35 34 33 32 Item Code No. Parts Name Specification Q R 32 5861 2110 Wrist strap ST-K724 1 X 33 6611 1290 Cleaning cloth CC-K724 1 X 34 1014 8773 Video cable C-K723-FC 1 X 35 1014 9607 Soft case SC-727 1 X Notes: Q – Quantity used per unit R – Rank ACCESSORY
— 6 — Power on 1. PON 2. APO 3. POB 4. FACT 5. Power On 6. Voltage detection Power off 1. PON 2. APO 3. POB 4. FACT 5. Power On 6. Voltage detection H (VCC1) L L H (VCC3) L L H (VCC1) L H (VCC0) H (VCC1) L L H (VCC3) L L H (VCC1) L H (VCC0) L 1 4 7 6 CK Q PR CLR Operation NAND gate Flip-flop Voltage detector IC IC505 IC506 IC507 1 2 5 Pin 1 (OUT) H
Casio QV-300 (B), — 25 — 1 IC100 pin 5 2 Q100 collector 3 IC101 pin 5 4 Q101 collector 5 IC300 pin 10 6 IC300 pin 20 7 IC300 pin 21 8 IC300 pin 39 9 IC300 pin 36 0 IC300 pin 30 4 µsec 4 µsec 4 µsec 63.5 µsec 0.8 V 0.8 V 63.5 µsec 4.0 V 1.0 V 63.5 µsec 5.0 V 4 µsec 125 µsec 63.5 µsec 125 µsec 5.0 V 5.0 V 6.0 V 10.0 V 7.0 V WAVEFORMS
Casio QV-300 (B), CONTENTS SPECIFICATIONS ......................................................................................... 1 BLOCK DIAGRAM......................................................................................... 2 FLOW DIAGRAMS ........................................................................................ 3 POWER SUPPLY CIRCUIT OPERATION ..................................................... 5 TROUBLESHOOTING ................................................................................... 8 DISASSEMBLY.............................................................................................. 9 ASSEMBLY.........
Casio QV-300 (B), DIGITAL PCB ASS'Y Item Code No. Parts Name Specification Q R Diodes D500 2390 2268 Chip diode MA727-(TX) 1 C D501 2360 1876 Chip zener diode MA8100-M(TX) 1 C D502 2390 1379 Schottoky diode MA729-(TX) 1 C D503 7101 1194 Chip diode MA111-(TX) 1 C D504 2390 2261 Chip diode MA720-(TX) 1 C D505 2390 2261 Chip diode MA720-(TX) 1 C D506 2390 1421 Chip schottoky diode MA738-(TX) 1 C D600 7101 1194 Chip diode MA111-(TX) 1 C D601 2390 1379 Schottoky diode MA729-(TX) 1 C D602 2390 1470 Chip diode MA143A-(TX) 1
Casio QV-300 (B), — 11 — ASSEMBLY Switch knob Slide switch Switch knob To assemble the main unit 1. Be sure to align the slide switch on the linear PCB with the switch knob. 2. Be sure to align the slide switch on the key PCB with the switch knob. 3. Push hard the upper case with both hands.
— 23 — DIGITAL Data Expander Data Compressor Video Encoder 8 to 16 bits Converter Color processor VRAM Flash Memory On Screen Display DC in To Key PCB To Linear PCB To Camera Unit Digital I/O Video Out DRAM 5 V Booster Circuit 5 V Power Supply Circuit 3.5 V 5 V 3.5 V Power Supply Circuit Power Supply Circuit for CCD CPU
Casio QV-300 (B), KEY PCB ASS'Y Item Code No. Parts Name Specification Q R Switches SW900 3412 1421 Slide switch ESD165227 1 A SW901 3412 0882 Switch SKHUPD-T 1 C SW902 3412 0882 Switch SKHUPD-T 1 C SW903 3412 0882 Switch SKHUPD-T 1 C SW904 3412 0882 Switch SKHUPD-T 1 C SW905 3412 0882 Switch SKHUPD-T 1 C SW906 3412 0882 Switch SKHUPD-T 1 C SW907 3412 0882 Switch SKHUPD-T 1 C SW908 3412 0882 Switch SKHUPD-T 1 C Notes: Q – Quantity used per unit R – Rank — 19 —
Casio QV-300 (B), — 1 — SPECIFICATIONS Item Specification 1. Recording System Digital (JPEG based) 2. Signal System NTSC 3. Recording Medium Built-in 32-Mbit flash memory 4. Number of Memory Pages FINE(VGA) : 64 (approximately 480-kbit compressed) NORMAL(Quarter-VGA) : 192 (approximately 160-kbit compressed) 5. Delete Functions Single page; All pages (with page protect feature) 6. Imaging Device 1/4-inch CCD (Total Number of Pixels: 360,000) 7. Lens 2 focal points with macro position: F2.6 f=4.9 mm/f=11.0 mm 8. Aperture F2.6/F8 manual switching 9. Focal Length f=4.9 mm F2.6/NORMAL : 0.6 m (2') ~ ∞; f=4.9 mm F2.6/MACRO : 9 cm (3.5") ~ 11 cm (4.3&qu
Casio QV-300 (B), — 14 — Bottom View Top View C527 C607 C631 R603 R631 L641 IC605 C718 L732 R610 R612 C629 R607 R626 R625 C612 C611 C625 EM2 R633 C630 C613 R605 R606 Q610 R517 C521 R509 R516 C517 R629 R630 C523 R515 IC507 C531 CN600 IC505 IC504 C518 D600 L513 L501 C601 C533 C535 C722 L631 C534 C522 R522 R519 R521 T500 JK700 JK500 JK600 C551 L502 L540 L740 L643 IC701 IC703 IC601 CN602CN603 H701 H700 CN601 Q514 Q611 Q508 Q512 C546 C542 C731 C730 C537 C541 C544 C540 C548 + + + + + L503 DIGITAL IC700 IC600 C705 C704 R655 L506 C508 L505 R504 C506 C509 R502 C519 C512 R505 R523 IC502 Q501 Q502 IC501 Q504 Q500 IC500
Casio QV-300 (B), — 3 — FLOW DIAGRAMS REC mode 1 Exposure and Analog to Digital conversion by Camera unit 2 8 to 16 bits conversion by IC703 3 Storage for work 4 Color processing by IC703: Ye,Cy, Gr → Y, By, Ry 5 Storage for work 6, 7 Video encode by IC 700 and IC701: Y, By, Ry → Video 8 Video out When pressing the shutter button Camera Unit IC703 LC99092-Z03 IC700 HG51D291FE IC701 µPD482445LGW IC602 KM29V32000T IC601 HM51W4260 IC600 HD6437042Y03F Digital PCB 1 2 3 4 5 6 7 8 CCD A/D Converter IC703 LC99092-Z03 IC700 HG51D291FE IC701 µPD482445LGW IC602 KM29V32000T IC601 HM51W4260 IC600 HD6437042Y03F Digital PCB 2 3 4 5 6 7 8 Camera Unit
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