Résumé du contenu de la page N° 1
FILE NO.
SERVICE MANUAL
Color Digital Camera
VPC-X360E
(Product Code : 126 251 01)
(U.K.)
VPC-X360EX
(Product Code : 126 251 02)
(Europe)
(PAL General)
VPC-X360
(Product Code : 126 251 03)
(U.S.A.)
(Canada)
Contents
1. OUTLINE OF CIRCUIT DESCRIPTION .................... 2
2. DISASSEMBLY ........................................................ 12
3. ELECTRICAL ADJUSTMENT .................................. 15
4. TROUBLESHOOTING GUIDE................................. 20
5. PARTS LIST...............
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1. OUTLINE OF CIRCUIT DESCRIPTION 1-1. CA-1 CIRCUIT DESCRIPTION 1. IC Configuration [Features] IC903 (ICX204AK) CCD imager Independent storage and retrieval for each pixel IC902 (74VHC04MTC) H driver Square pixel unit cell IC904 (CXD1267AN) V driver XGA compatible IC905 (AD9802) CDS/AGC, A/D converter R, G, B primary color mosaic filter Continuous variable speed electronic shutter function 2. IC903 (CCD) [Structure] Interline type CCD image sensor Pin 1 Optical size 1/3 inch format 2 Effective p
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3. IC902 (H Driver) and IC904 (V Driver) 4. IC905 (CDS, AGC Circuit and A/D converter) An H driver (IC902) and V driver (IC904) are necessary in The video signal which is output from the CCD is input to order to generate the clocks (vertical transfer clock, horizon- Pins (26) and (27) of IC905. There are S/H blocks inside IC905 tal transfer clock and electronic shutter clock) which driver generated from the XSHP and XSHD pulses, and it is here the CCD. that CDS (correlated double sampling) is ca
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5. Transfer of Electric Charge by the Horizontal CCD The transfer system for the horizontal CCD emplays a 2-phase drive method. The electric charges sent to the final stage of the horizontal CCD are transferred to the floating diffusion, as shown in Fig. 1-5. RG is turned on by the timing in (1), and the floating diffusion is charged to the potential of PD. The RG is turned off by the timing in (2). In this condition, the floating diffusion is floated at high impedance. The H1 potential becomes
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1-2. CA2 CIRCUIT DESCRIPTION 1. Circuit Description 1-7. 8-bit D/A circuit (Audio) 1-1. Scannning converter (Interlace converter) This circuit converts the audio signals (analog signals) from This circuit uses the function of a 64-Mbit SDRAMs to con- the microphone to 8-bit digital signals. vert the non-interlaced signal which is output from the CCD into an interlaced signal for the video monitor. 1-8. 8-bit A/D circuit (Audio) The audio signals which were converted to digial form by the 1-2. Ca
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3. LCD Block During EE, gamma conversion is carried out for the 10-bit RGB data which is input from the A/D conversion block of the CCD to the ASIC in order that the revised can be displayed on the video. The YUV of 640 x 480 is then transferred to the SVRAM. The data which has accumulated in the SDRAM is after D/A conversion is carried out by SDRAM control circuit inside the ASIC , makes Y/C signal, the data is sent to the LCD panel and displayed. If the shutter button is pressed in this condi
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1-3. PW1 POWER CIRCUIT DESCRIPTION 1. Outline 3. Digital 3.3 V Power Output This is the main power circuit, and is comprised of the follow- 3.3 V (D) is output. Feedback for the 3.3 V (D) is provided to ing blocks. the switching controller (Pins (1) of IC501) so that PWM con- Switching controller (IC501) trol can be carried out. Digital and analog system and LCD 5.0 V system power out- put (L5010, Q5002, D5013, C5061) 4. 5 V System Power Output Digital 3.3 V system power supply (L5017, Q5009, D5
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1-4. PW1 STROBE CIRCUIT DESCRIPTION 1. Charging Circuit 2. Light Emission Circuit When UNREG power is supplied to the charge circuit and the When RDY and TRIG signals are input from the ASIC expan- CHG signal becomes High (3.3 V), the charging circuit starts sion port, the stroboscope emits light. operating and the main electorolytic capacitor is charged with high-voltage direct current. 2-1. Emission control circuit However, when the CHG signal is Low (0 V), the charging When the RDY signal is
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1-5. SY1 CIRCUIT DESCRIPTION 1. Configuration and Functions For the overall configuration of the SY1 circuit board, refer to the block diagram. The configuration of the SY1 circuit board centers around a 8-bit microprocessor (IC301). The 8-bit microprocessor handles the following functions. 1. Operation key input, 2. Mode LCD display, 3. Clock control, 4. Power ON/OFF, 5. Storobe charge control Pin Signal I/O Outline 1 CHG VOL I Strobe charge voltage input (analog input) 2 NOT USED - - I 3~7 SCA
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2. Internal Communication Bus The SY1 circuit board carries out overall control of camera operation by detecting the input from the keyboard and the condition of the camera circuits. The 8-bit microprocessor reads the signals from each sensor element as input data and outputs this data to the camera circuits (ASIC) or to the LCD display device as operation mode setting data. Fig. 4-1 shows the internal commu- nication between the 8-bit microprocessor and ASIC. S. REQ ASIC ASIC SO 8-bit 32 bit mi
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4. Power Supply Control The 8-bit microprocessor controls the power supply for the overall system. The following is a description of how the power supply is turned on and off. When the battery is attached, a regulated 3.3 V voltage is normally input to the 8-bit microprocessor (IC301) by IC303, so that clock counting and key scanning is carried out even when the power switch is turned off, so that the camera can start up again. When the battery is removed, the 8-bit micro- processor operates in
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2. DISASSEMBLY 2-1. REMOVAL OF CABINET ASSEMBLY (FRONT) AND CABINET ASSEMBLY (BACK) 6. Screw 1.7 x 3 7. Cabinet top 3. Back cabinet 13. Holder battery 12. Five screws 1.7 x 3 1. Four screws 2. Front cabinet 1.7 x 4 10. Holder SSFDC 11. Holder terminal 5. Cover jack 8. Screw 1.7 x 3 9. Two screws 1.7 x 4 1. Two screws 1.7 x 4 4. Cover battery 2-2. REMOVAL OF SY1 BOARD, TB2 BOARD AND TB1 BOARD 1. Two screws 1.7 x 3 2. FPC 4. Connector 5. SY1 board 3. Three connectors 9. Unit co
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2-3. REMOVAL OF LENS VF AND PW1 BOARD 1. Two screws 1.7 x 3 2. Lens VF 4. Connector 5. Connector 8. Reflector 3. Two screws 1.7 x 3 6. Three screws 1.7 x 3 7. Holder chassis PW1 9. PW1 board
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2-4. REMOVAL OF LCD, CA2 BOARD AND CA1 BOARD 8. Holder 9. CA2 board chassis CA2 3. Four screws 7. Two 1.7 x 3 screws 1.7 x 3 6. Two connectors 2. LCD 4. Connector 11. Holder chassis CA1 5. Screw 1.7 x 3 1. FPC 12. Two screws 1.7 x 6 13. Screw 1.7 x 4 14. CA2 board 10. Three screws 1.7 x 3 2-5. BOARD LOCATION CA2 board SY1 board TB2 board TB1 board PW1 board CA1 board
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3. ELECTRICAL ADJUSTMENT 3-1. Table for Servicing Tools 3-4. Setup 1. System requirements Windows 95 or 98 Ref. No. Name Part code IBM R -compatible PC with 486 or higher processor J-1 Color viewer 5,100 K VJ8-0007 CD-ROM drive J-2 Siemens star chart 3.5-inch high-density diskette drive J-3 Calibration software VJ8-0166 Serial port with standard RS-232C interface J-4 Extension cord VJ8-0151 8 MB RAM Hard disk drive with at least 15 MB available Note: J-1 color viewer is 100 - 110 VAC only. VGA o
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3-5. Connecting the camera to the computer 1. Turn off both camera and computer. 2. Locate the port cover on the side of the camera. Press on the arrows and slide the cover down to open it. 3. Line up the arrow on the cable connector with the notch on the camera's serial port. Insert the connector. 4. Locate a serial port on the back of your computer. You may have two serial ports labeled COM1 and COM2, or the ports may be labeled with icons. If you have two serial ports available, use port 1 to
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3. 3.3 V (D) Voltage Adjustment 3-6. Adjust Specifications Measuring Point CL533 or CL553 or CL519 [PW1 board (Side A/B)] Measuring Equipment Digital voltmeter ADJ. Location VR502 ADJ. Value 3.30 0.03 V VR501 VR502 Adjustment method: 1.Adjust with VR502 to 3.30 0.03 V. CL524 CL515 CL554 4. 12.4 V (L) Voltage Adjustment 1 VR504 CL519 CL536 VR505 Measuring Point CL524 or CL554 CL530 Measuring Equipment Digital voltmeter VR503 VR506 ADJ. Location VR505 ADJ. Value 12.40 0.05 V Adjustment method:
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8. AWB Adjustment Preparation: POWER switch: ON Adjusting location: Flange-back adjustment screw (Fig. 1) Adjust the adjustment screw by turning it through the hole pro- vided in the CA1 board. If this adjustment screw is turned counter-clockwise, the focal length of the lens will decrease, and if it is turned clockwise, the focal length will increase. Adjustment method: Serial cable 1. Display the image taken by the camera on the screen of a computer. 2. Set the focus switch at the normal posit
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LCD adjustment LCD screen A B frame VG FPC CL424 waveform 10-2. LCD RGB Offset Adjustment Adjusting method: 1. Adjust LCD “RGB offset” so that the amplitude of the CL424 waveform is 7.5 Vp-p 0.3 V. VG 0.2 V 7.5 Vp-p 0.3 V CL426 waveform 10-5. LCD Red Brightness Adjustment Adjusting method: CL424 waveform 1. Adjust LCD “R Bright” so that the amplitude of the CL425 waveform is 0.2 V with respect to the CL424 (VG) wave- 10-3. LCD Gain Adjustment form. Adjusting method: Note: 1. Adjust LCD “Gain”
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4. TROUBLESHOOTING GUIDE POWER LOSS INOPERTIVE TAKING INOPERATIVE CLOSE PUSH SHUTTER BARRIER SW NORMAL BARRIER SW ON BUTTON OPEN IC301-4, 5 CHECK HIGH NO CHECK S6002, (SCAN IN 0, 1) IC301-4, 93 S3029, D3064, CN302, D3069, R3021 PULSE INPUT R3021, R3022 YES LOW LOW LOW IC301-70, 71 IC302-7 (UP UNREG) CHECK IC301 CHECK IC132, PW1 (P ON, P(A) ON) HIGH HIGH LOW NO IC301-96, 97, 98 IC301-81 CHECK IC301, IC101 CHECK IC302 HIGH (VDD) YES HIGH SERIAL NG LOW IC301-84 CHECK IC301, COMMUNICATION CHECK IC30
