Sony DSC-S75 Training Manual
Servicing
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Summary of Contents for Sony DSC-S75
- Page 1 Training Manual DSC-S75 DSC-S85 DSC-F707 Digital Still Camera Servicing Models: DSC-S75 DSC-S85 DSC-F707 Circuit Descriptions and Troubleshooting Course: DSC-02...
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Page 2: Table Of Contents
12. Alignment ........24 PTP ................. 2 Radar W and RM-85 ........... 24 DSC-S75 and DSC-S85 When to Align ............25 3. DSC-S75 & DSC-S85 Digital 13. Block Diagram ........26 Cameras ..........3 Lens Assembly ............. 26 Overview..............3 Camera Control ............ 27 Repair Tools &... -
Page 3: Overview
9. Self-Diagnostics & Screen Display (DA4 & DA-4X Chassis) Chapter 1 - Overview The DSC-S75, DSC-S85 and DSC-F707 cameras are high quality ‘high–end’ cameras with many features, including Carl Zeiss lenses, multi-step and continuous focus, optical and digital zoom, low light auto focus illumination, USB connectivity, JPEG, GIF and TIFF picture formats, burst and bracketed still modes and a MPEG movie mode. -
Page 4: Software - All Models
9. Self-Diagnostics & Screen Display (DA4 & DA-4X Chassis) Chapter 2 - Software - All Models All current model Sony still cameras are packaged with a CD containing a USB driver for interfacing with USB computer ports and a number of video editing programs: •... -
Page 5: Dsc-S75 And Dsc-S85
3. DSC-S75 and DSC-S85 Digital Cameras Chapter 3 - DSC-S75 and DSC-S85 Digital Cameras Overview The DSC-S75 and S85 Cyber-shot ® digital cameras are very similar in appearance and operation. The circuit descriptions and repair procedures are also very similar and apply equally to both models. The differences are in the body colors (S85 is black and S75 is silver), the number of CCD pixels and the price. -
Page 6: Alignment
3. DSC-S75 and DSC-S85 Digital Cameras Alignment When to Align Cameras will need alignment when one of the following components is replaced: • SY-68 board • Lens assembly • Flash • LCD display • LCD character display Table 3-2 shows the areas that will need realignment when one of the above components is replaced. -
Page 7: Radar W And Rm-85
RM-95, and unlike the RM-95, it is less prone to data entry mistakes. The Sony part number for the Radar W interface jig is J-6082-429-A. The RM-95 jig should be reserved for making small registry changes or for checking the operation of the camera switches. -
Page 8: Block Diagram
4. DSC-75 and DSC-S85 Block Diagram Chapter 4 - DSC-S75 and DSC-S85 Block Diagram The following is a short explanation of the internal camera operations in block diagram format, based on the SY- 68 board as the central item. Overview Refer to Figure 4-1. - Page 9 4. DSC-75 and DSC-S85 Block Diagram SY-68 BD. IMAGER JK-211BD. PROCESS AV OUT VIDEO OUT VIDEO ZOOM SHUTTER FOCUS IRIS AUDIO OUT DRIVE AUDIO PROC. MIC. Z SENS RST & AMP. SENSOR SPEAKER FSENS RST SENSOR ZOOM CK-103 BOARD MOTOR IC301 DRIVE CAMERA...
- Page 10 4. DSC-75 and DSC-S85 Block Diagram TO/FROM MC CAMERA TO/ FROM SH DSP FLASH UNIT & TO/FROM LANC CAMERA KY-55 BOARD CK-103 BOARD FUNCTION KEY AD 0-2 JK-211 BOARD LITHIUM INITIAL VL 3V CONTROL SW. BATT. RESET BLOCK (MODE) BACK-UP SHUTTER SWITCH DM-101 BD.
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Page 11: Power Supply
5. DSC-S75 and DSC-S85 Power Supply Chapter 5 - DSC-S75 and DSC-S85 Power Supply The DM-101 Power Supply board converts the dc input from the ac adapter or battery into all of the necessary ac and ±dc voltages. Board Access The DM-101 board is sandwiched between the SY-68 board and the front of the camera and is not easily accessible for live troubleshooting. - Page 12 5. DSC-S75 and DSC-S85 Power Supply BATT. ON CN701 CN001 F005 F004 ALWAYS ON F003 VCC-B VCC-C F001 J001 F002 VCC-A DC IN VCC-D A 3.2V Q002 FAST Q009 CAM 3.2V 3.2V CAM SW. REG. D 3.2V Q003,004 VCC-D INIT.
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Page 13: Unregulated Always On Voltages
5. DSC-S75 and DSC-S85 Power Supply Unregulated always ON voltages The always-on voltage is fed to all -10.5V circuits via four fuses ? F1 ~ F4. Each fuse supplies a different section of Q005 IC001 and its respective external VCC-B +15V switching circuit. - Page 14 5. DSC-S75 and DSC-S85 Power Supply Control Circuits See Figure 5-1 The control lines for this power supply are: SYS DD ON This is the master switch that turns the DC Control IC ON/OFF. The line must be HIGH (3.2v) for the IC to operate.
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Page 15: Power Supply Troubleshooting
N Do not repair any of the printed circuit boards on units under warranty. If defective, order a new one and send the old one back for a refund of the core charge, as per Sony policy. Troubleshooting the DM-101 power supply board is limited to checking the output voltage levels and control signal lines on SY-68 connector CN701 and to checking fuses and other components with the board removed. -
Page 16: Flash Assembly
6. DSC-S75 and DSC-S85 Flash Assembly Chapter 6 - DSC-S75 and DSC-S85 Flash Assembly The flash assembly is considered a replaceable module so its internal operation is not discussed. Its mode of operation is rather simple: In addition to unregulated B+ input and ground (not shown), it has five control lines to and from the SY-68 board: STB CHARGE, XSTB FULL, STRB ON, PHOTO TR OUT (STRB AIN) and STRB PHOTO ON. -
Page 17: Video Processing
7. DSC-S75 and DSC-S85 Video Processing Chapter 7 - DSC-S75 and DSC-S85 Video Processing SY-68 BD. IMAGER JK-211BD. PROCESS AV OUT VIDEO OUT VIDEO ZOOM SHUTTER FOCUS IRIS AUDIO OUT DRIVE AUDIO PROC. MIC. Z SENS RST & AMP. SENSOR... -
Page 18: Lens Assembly
8. DSC-S75 and DSC-S85 Lens Assembly Chapter 8 - DSC-S75 and DSC-S85 Lens Assembly The lens assembly is replaced as a module. Since it is not disassembled by the technician, its internal mecha- nism will not be discussed. The “electronics” associated with the lens consist of a focus motor, aperture (iris) servo-motor, zoom motor and end position sensors for the zoom and focus lenses. - Page 19 8. DSC-S75 and DSC-S85 Lens Assembly SYS-68 BD. LENS IMAGE PROCESSOR IRIS ZOOM FOCUS CN202 IRIS A IRIS A IRIS (SHUTTER) IRIS B DRIVE IRIS B CN201 FOCUS FOCUS A SENSOR ZOOM FOCUS A FOCUS SENSOR IC301 MOTOR CAMERA FOCUS B...
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Page 20: Troubleshooting
8. DSC-S75 and DSC-S85 Lens Assembly Troubleshooting Statistically, the number one replacement item on cameras is the lens assembly. Mostly because of physical damage caused by either user carelessness or abuse. In many instances, the damage is visible but in other instances, it may be internal and invisible. - Page 21 8. DSC-S75 and DSC-S85 Lens Assembly ? If S75 camera cannot focus in low light conditions, differentiate between a defective lens and a defective SY- 68 board by checking if the low light AF illuminator lights up at low light conditions. Turn the AF illuminator on in a dark area and press the shutter halfway down.
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Page 22: Camera Switches
9. DSC-S75 and DSC-S85 Camera Switches Chapter 9 - DSC-S75 and DSC-S85 Camera Switches Overview Theses cameras uses a variety of switches, all of which are mounted on flex board assemblies. Since they are mounted deep inside the camera and on the rear cover, they cannot be checked “live”. When a switch stops responding, it may be because it became defective or a break occurred in its associated flex assembly. - Page 23 9. DSC-S75 and DSC-S85 Camera Switches Table 9-1 Data Page 2 Switch Address/ Switch Address/ Switch Address/ Data Data Data Control Menu Spot Down 00-0C 28-48 Meter 75-A6 Control Display/LCD Zoom W 0D-27 ON/OFF 00-0C 00-0C Control AE Lock Zoom T...
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Page 24: Dsc-F707 10. Features
10. Alignment Chapter 10 - DSC-F707 Features This is a high-end camera with a number of unique and outstanding features. Some of those are: • 5.2 mega-pixel Super HAD CCD • Automatic pop-up flash: Hidden flash pops up automatically when flash is required. •... -
Page 25: Repair Tools & Jigs
8. DSC-S75 and DSC-S85 Repair Tools and Jigs Chapter 11 - DSC-F707 Repair Tools and Jigs Repairing the digital camera may require the following specialized tools and jigs. See Table 11-1. Table 11-1 Specialized Tools & Jigs Jig or tool... -
Page 26: Alignment
Service RM-95 and unlike the RM-95, it is not prone to data entry errors by the user. The Sony part number for the Radar W interface jig is J-6082-429-A. ? The RM-95 jig should be reserved for making only a few register changes and for determining the operation of the camera switches. -
Page 27: When To Align
12. DSC-F707 Alignment When to Align The camera needs to be aligned when one of the following components are replaced: FR-181 board - PD-155 board - SY-072 board - Lens assembly – Flash – EVF - LCD display - Back light assembly (LC-075 board). -
Page 28: Block Diagram
13. DSC-F707 Block Diagram Chapter 13 - DSC-F707 Block Diagram Since troubleshooting is limited to identifying a defective board or module, the circuit descriptions will only include areas that are necessary to identify a defective board or module. The camera consists of a lens assembly, camera and data control circuits, audio and video processing, and the flash circuits. -
Page 29: Camera Control
13. DSC-F707 Block Diagram Camera Control • The camera is controlled by three processor ICs: CAMERA DSP IC301, MC CAM SH SP IC501 and the Front Control I/O IC. • The CAMERA DSP converts the signals from the CCD into video signals for the LCD monitor and A/V jack. •... -
Page 30: Lens Assembly
14. DSC-F707 Lens Assembly Chapter 14 - DSC-F707 Lens Assembly Overview This chapter describes the operation of the various lens electronic circuits. Although the lens assembly is replaced as a complete unit, an understanding of how it operates is important to enable the technician to determine if a problem is or is not caused by the lens. -
Page 31: Circuit Description
14. DSC-F707 Lens Assembly Circuit Description See Figure 14-1 Focus and Zoom 1. The focus and zoom lenses are driven by four phase dc pulse motors. Four pulsed lines drive the motors. 2. Motor direction is determined by the sequence that the motor lines are pulsed. 3. -
Page 32: Iris
14. DSC-F707 Lens Assembly Iris Iris Operation Operation LENS ASSY. FR-181 BD. IRIS CONTROL IC204, IC205, CN203 Q202 IRIS IRIS DRIVE MOTOR CAM P 5V HALL IC205 OFFSET HALL (-) IC207 HALL IRIS POSITION BIAS (+) IC205 BIAS SENSOR HALL (+) CONV. - Page 33 14. DSC-F707 Lens Assembly large adjustments; the slow response time from the video amp (remember, it is averaged) will cause the iris to over compensate and shoot pasts its optimal point, then swing back and overcompensate again in the opposite direction.
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Page 34: Servicing
14. DSC-F707 Lens Assembly Servicing The lens, including the mounted CCD assembly, is replaced as a unit. Except for the manual focus ring in the front of the lens, no internal repairs are to be done to lens assembly. ? Error message E:61:00 or E:61:10 is usually an indication of a jammed lens assembly. Replace the lens. ? Shading (darker picture) on one side of the picture (usually the left side). - Page 35 14. DSC-F707 Lens Assembly Lens Re-mounting The lens unit is electrically connected to the camera by the FP-421 flexible board. Due to the tilt and mounting design of the lens, this flexible board has multiple folds, bends, loops and adhesive sections that must be accurately replicated when reassembling the lens.
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Page 36: Focus Ring Repairs
14. DSC-F707 Lens Assembly Focus Ring Repairs The manual focus ring in the front of the lens can be replaced if broken or repaired if it simply falls off. F O C U S R I N G The ring should be repaired if it falls off and is not otherwise damaged. One of the following methods can be used: •... -
Page 37: Power Supply
15. DSC-F707 Power Supply Chapter 15 - DSC-F707 Power Supply Power Supply Since troubleshooting is limited to identifying the defective board or module, the power supply description is limited to a circuit understanding for troubleshooting purposes. Refer to Figures 15-1a and 15-1b. BT-006 BD. -
Page 38: Converter Operation
15. DSC-F707 Power Supply V REF. -7.5V CAM-7.5V V REF. REG. UNREG 1 UNREG 1 -BLVO Q015, Q016 -15.3V PANEL -15.3V Q007 REG. Q004, T001 CAMERA +15V +15V DC-DC CONV. 13.5V LCD PANEL Q013, Q014 -15.3V UNREG 2 REG. Q005 BOOST 4.9V REG A4.9V, PANEL... -
Page 39: Scp
15. DSC-F707 Power Supply Camera +15V Line The circuit supplying Camera 15V is somewhat unique: it actually produces only 10 volts. To get a 15 volt output, the cold leg of its secondary transformer winding is connected to the A4.9V line instead of to ground. This boots the 10 volts to 15 volts. -
Page 40: Troubleshooting
15. DSC-F707 Power Supply • The lines are monitored by Q017A and B, and Q001. Each of these transistors also has a positive reference voltage applied to it. • In normal operation, the base of the transistors is approximately 0V. •... -
Page 41: Discharging Storage Capacitors
Discharging Storage Capacitors CAUTION: Do not handle the BT-006 board without first discharging the flash storage capacitors. Make a discharge jig from a 1K ohm - 1W resistor (Sony pn: 1-215-869-11) and two hook clip leads. Checking FR-181 Board •... -
Page 42: Flash Circuit
16. DSC-F707 Flash Circuit Chapter 16 - DSC-F707 Flash Circuit Overview The flash on this model is a pop-up flash that automatically pops up when flash is needed. • The flash assembly is under spring tension in the closed position. It is held there by a plunger. •... -
Page 43: Servicing
Make a discharge jig from a 1K ohm - 1W resistor (Sony pn: 1-215-869-11) and two hook clip leads. -
Page 44: Procedure
CAPACITORS – A fully charged capacitor stores up to 300 volts for days. Blue Flash Cameras with an overly blue picture should be sent to Sony for repairs. The repairs require expensive equipment that is not normally available. Refer to ESI bulletin E14843941... -
Page 45: Jigging Camera
A defective SY-072 board should be replaced and not be repaired under warranty. The old board should be returned for core credit, as per Sony policy. The board is located on top of the lens assembly inside the lens barrel housing. It is accessible after the lens housing is removed. -
Page 46: Camera Switches
18. DSC-F707 Camera Switches Chapter 18 - DSC-F707 Camera Switches Overview The camera uses a variety of push button, rotary and slide switches that are mounted on flex board assemblies. These switches are located on the rear cover, the front cabinet and on the lens assembly. Most switch terminals are not easily accessible when the camera is operating. - Page 47 18. DSC-F707 Camera Switches Data Page 2 Data Page 2 Switch Address, Data Switch Address, Data Mode Dial SCN 94, 68-A8 NightFraming/ 93, Normal=DE-FF Mode Dial M 94, 3E-67 NightShot NightShot=75-A6; Mode Dial A 94, 15-3D NightFrame=A7-DD Menu 90, 28-48 Mode Dial S 94, 00-14 Mode Dial Camera...
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