Acer S2W 3300U Service Manual
Acer S2W 3300U - USB Scanner Manual
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Acer S2W 3300U manual content summary:
- Acer S2W 3300U | Service Manual - Page 1
Acer S2W 3300U Service Manual - Acer S2W 3300U | Service Manual - Page 2
, optical, chemical, manual or otherwise, without the prior written permission of Acer Peripherals, Inc. Disclaimer Acer Communications & Multimedia Inc. makes no representations or warranties, either expressed or implied, with respect to the contents hereof and specifically disclaims any warranties - Acer S2W 3300U | Service Manual - Page 3
31 5.5 CCD Head/Elements ...32 5.6 Line Motor Driver...33 5.7 Sensor Elements ...33 5.8 Main Flow Chart of Scanner 3300U 34 5.9 Connectors of Scanner 3300U 35 CH6. Troubleshooting 6.0 Error Code Identification from Mirascan 38 6.1 No Function after Power On 38 6.2 Cannot Link with Host Computer - Acer S2W 3300U | Service Manual - Page 4
provides USB interface to communicate with host, and TWAIN 32 driver for PC. Any TWAIN 32 compliant application can access this scanner. "Acer S2W 3300U" other main features are as following: n High quality resolution 600 x 1200 dpi optical resolution 19200 x 19200 dpi maximum resolution by software - Acer S2W 3300U | Service Manual - Page 5
Highlight / shadow 256 steps Contrast / brightness 256 steps Interface Platforms Power Comsumption Power supply USB for host connection PC 25 W maximum Using 5 different AC adapters (100V,110V,120V,220V,240V) each can guarantee ±10% variation ;Frequency : 50 ~ 60 Hz Realibility MTTR Net Weight - Acer S2W 3300U | Service Manual - Page 6
Chapter 3 Theory of Operation This chapter describes the optic process and the scan sequences of " Acer S2W 3300U". 3.1. Fundamentals of the Optic Process There are three steps for the optic process: Reflection, Imaging and eceiving. (1) Reflection The major function of reflection is to - Acer S2W 3300U | Service Manual - Page 7
are data for the future process. LIGHT VOLTAGE SIGNAL CCD Fig. 3-3 Receiving 3.2 Scan Process (1) Preset Put the object (it can be paper, picture, book ...etc.) you want to scan on the scanner's window glass and close the scanner cover. If the object is too thick to close the cover, then you can - Acer S2W 3300U | Service Manual - Page 8
(4) Scan a. Reflection: The mirrors are used to reflect the light from the object. , transfers the intensity of light to voltage, and outputs the voltage to processor. (5) Output The scanned image of the object is output on the monitor after detail and complex calculations.The detail flow chart is - Acer S2W 3300U | Service Manual - Page 9
START PRESET N PREVIEW Y N PICK TARGET Y ENVIRONMENT REFLECTING IMAGING RECEIVING PROCESSING N MONITOR Y MORE IMAGE PROCESS Fig. 3-4 Scan Process - Acer S2W 3300U | Service Manual - Page 10
Chapter 4 Mechanism The scanner's mechanism can be divided into two major departments: Optics Module Transmission Module Transmission Module 4.1 Optics Module The optics module includes lamp, reflect plate, three mirrors, - Acer S2W 3300U | Service Manual - Page 11
Figure 4-1 The Detail Parts of Optics Module - Acer S2W 3300U | Service Manual - Page 12
Figure 4-2 The Mirrors' Position in Carriage The optics process can be divided into four steps in detail: light source, reflection, imaging and receiving. The light path diagram is shown in Fig.4-3. And these steps will be described in the following: Object lamp 2 4 6 1 5 3 Lens Color ccd - Acer S2W 3300U | Service Manual - Page 13
(1) Light Source A lamp is used as a light source. A reflective plate is a tool that is used to increase light intensity. Applying light to reflect from the object and the reflected light will pass through mirrors, lens, and finally forms an image on color CCD. The reflection path of the light is - Acer S2W 3300U | Service Manual - Page 14
image distance changes according to the formula. At this moment, the image can not accurately form on the CCD, and the quality and resolution of scanner will be influenced. In order to keep high quality and resolution of the scanner, never try to loosen the hex screw and adjust the lens position. - Acer S2W 3300U | Service Manual - Page 15
output voltage signals while the light shines. Note: The position of color CCD is mounted on a board, its position has been precisely calibrated for every scanner. The CCD board is fixed in lensbox by two screws as shown in Fig.4-6. Any deviation will seriously affect the output voltage of CCD and - Acer S2W 3300U | Service Manual - Page 16
lens Box CCD screw CCD Board Figure 4-6 CCD Board - Acer S2W 3300U | Service Manual - Page 17
2 Gear10t25t 3 BeltGear 4 Driving Belt 5 Pulley Table 4 (1) Stepping Motor Provides main power to activate scanning mechanism. It can support different speeds (which are controlled by the PCB main board) for any scanning resolution The precision of the stepping motor is 1/600 inch per half - Acer S2W 3300U | Service Manual - Page 18
This mechanism transfers the rotation of stepping motor into linear motion. Through this mechanism the scan module can smoothly move at will in the scanning process. The description of the gear train is as following: A. Gear train The gear train's diagram is shown in Fig.4-8. Their sizes are - Acer S2W 3300U | Service Manual - Page 19
device translates rotation motion into linear motion. Two pulleys support the driving belt, and it transmits linear motion when can have a linear motion. The belt tension is a critical factor in the scanning process. A proper belt tension is decisive for a perfect transmission. The belt tension is - Acer S2W 3300U | Service Manual - Page 20
Electrical Systems 5.1 Overview The overview of electrical systems as below: For Scanner 4300U is shown in figure 5-1. Figure 5-1 The Scanner 3300U is composed of 3 PCB boards: Main board, CCD board, and the Inverter board. Through functional partitions, The Scanner 3300U system can be divided into - Acer S2W 3300U | Service Manual - Page 21
the bottom of Scanner 4300U. The I/O module is the USB and the line motor. Scanner 4300U System Block Diagram CCD Board Main Board USB port Inverter & Lamp Regulator Part Line Motor Scan Module Main Module Figure 5-2 I/O Module Figure 5-3 illustrates the operation of the Scanner 3300U. The - Acer S2W 3300U | Service Manual - Page 22
the light power comes from the Inverter on the CCD module. The image is reflected into 6 reflection mirrors that are used to condense the image-wide scanned line into the A/D converter to get the digitized data.Please refer to figure 5-3. Scan Modules Object lamp 2 4 6 1 5 3 Lens Color ccd - Acer S2W 3300U | Service Manual - Page 23
the adapter DC voltage into the required power sources. It has multiple DC outputs: +5V, +15V, and +12V. An inverter board converts DC 12V to high-frequency (~30K) AC voltage (~400 V) by a DC/AC inverter for the Cold Cathode Fluorescent Lamp. Scanner 3300U Regulator board. Block AC 110 Adapter +15V - Acer S2W 3300U | Service Manual - Page 24
Correction Halftone, LineArt Aux Ports( for Motors) CPU(8032) &2.5K ROM Addr. Bus Data Bus SYSTEM / DATA RAM USB I/F ADF/TPO I/F Line Motor Driver (2003) Figure 5-5 5.2 USB Port Interface The Scanner 3300U USB port protocol is built in AP7107u its host I/O interface. This section describes the - Acer S2W 3300U | Service Manual - Page 25
Data line 4 GND GND 5.2.2 Signaling Levels Table 5-1 Summarizes the USB signaling levels. The signaling levels are described below and in the Speed Full Speed Idle State: Low Speed Fill Speed Signaling Levels Form Originating Driver At Receiver (D+)-(D-) > 200 mV and D+ or D- > VSE(min) - Acer S2W 3300U | Service Manual - Page 26
Resume State: Low Speed Fill Speed Start of Packet (SOP) Differential "1" and D+ > VSE(max.) and D+ < VSE(min.) Differential "0" and D- > VSE(max.) and D- < VSE(min.) Data lines switch from Idle to K State End of Packet ( EOP) D+ and D- < VSE(min) for 2 bit times1 follow by an idle for 1 bit - Acer S2W 3300U | Service Manual - Page 27
single-ended 0 o the idle state defines the end of the packet. The idle state is asserted for 1 bit time and then both the D+ and Doutput drivers are placed in their high-impedance state. The bus termination resistors hold the bus in the idle state. Figure 5-23 shows the signaling for start - Acer S2W 3300U | Service Manual - Page 28
V OH (min) V SE (min) V SE(min) VOL (min) VSS Bus idle SOP First Bit of Packet V OH (min) V SE (min) V SE(min) VOL (min) VSS Last Bit of Packet EOP Strobe Bus Driven to idle state Bus Floats Bus idle Figure 5-6 - Acer S2W 3300U | Service Manual - Page 29
controller consists of an embedded CPU,USB controller M5611 and scanner controller. The CPU executes programs in CODE SRAM and does the following jobs: initialization, system selftest, calibration, panel handling, scan handling USB port interface and other signal control. 5.3.1 Features The AP7107u - Acer S2W 3300U | Service Manual - Page 30
Number 16 17 18 19 20 21 22 23 119 8-5 3-1,128-124 28-27 10 121 122 9 I/O O4 CCD Clock 1 O4 CCD Clock 2 O4 Red Shift CDS Clock 2 O4 Start Line Description Description USB Interface Signal (2 pins) Pin Name XDP XDM Pin Number I/O USB USB D+ USB USB D- Description Data RAM Interface (25 pins) - Acer S2W 3300U | Service Manual - Page 31
113,123 I/O P 5V Power P 3.3V Power P Ground Description Type Descriptions: IS O4 O8 O12 O16 IO4 IO12 IO16 IOD4 IOD16 ICLK OCLK USB Input with Schmidt Trigger 25 shows the structure block of analog signal processor A3568F. 3300U use the PLCC package A3568C. The differences are package and pin - Acer S2W 3300U | Service Manual - Page 32
Figure 5.25(A3568F) The image is captured from color CCD (Charge Coupled Device). The CCD transfers the light intensity to electrical charges via photo-diodes, then these charges are sampled and shifted serially with analog charge coupled devices and, then, converted into sampled voltage. The - Acer S2W 3300U | Service Manual - Page 33
Scanner 3300U CCD Board. 5.6 Line Motor Driver Figure 5-6 The Line Motor is drived by the 2003, a unipolar motor driver. Given the clock pulses and the necessary power, it is very easy to interface with the bipolar stepping motor. 5.7 Sensor Elements The home sensor: a photo-interrupter is - Acer S2W 3300U | Service Manual - Page 34
5.8 Main Flow Chart of Scanner 3300U Main Flow Chart of Scanner 3300U Start (Power On) Loader: 1. Test motor. 2. Test SRAM. 3. Turn on lamp. 4. Flash LED. 1. Driver download F/W 2. H/W verify chechsum of F/W 1. Initial system and CPU parameter. 2. Reset components condition. 3. Reset communication - Acer S2W 3300U | Service Manual - Page 35
board and main board 5.9.2 Main Board J8 J3 J2 U3 U4 Figure 5-9 U6 J5 U7 Connector J2 on Scanner 3300U Main Board J2 is connected to the CCD board. Pin # 1 2 3 4 5 6 7 8 9 10 Signal name SHR SHG SHB PHI1 PHI2 PHIRS PHICP ~HSEN SHAD0 SHAD1 Description CCD Shift Signal R CCD Shift Signal - Acer S2W 3300U | Service Manual - Page 36
L12V 22 L12V CCD Sample signal CCD Output Signal Digital Power Ground No Connection Analog power +15V Digital power +5V No Connection Digital power ground Digital power ground No Connection Lamp +12V Lamp +12V Connector J5 on Scanner 3300U Main Board J5 is connected to the line motor to drive - Acer S2W 3300U | Service Manual - Page 37
Connector J1 on 3300U scanner CCD Board Pin # 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 Signal Digital Power Ground No Connection Analog power +15V Digital power +5V No Connection Digital power ground Digital power ground No Connection Lamp +12V Lamp +12V Connector J2 on 3300U scanner CCD - Acer S2W 3300U | Service Manual - Page 38
Sensor error 0XFFFF0026 --- DC Offset error 0XFFFF0027 --- Lamp/CCD GAIN error 0XFFFF002A --- Scan Module Locked OR Line Motor Error 6.1 No Function after Power On: Power Cord/Power Switch/Power Fuse/Power Supply/Power Part X1 --- XTAL 24MHZ U3 --- ASIC(AP7107U) 6.2 Cannot Link with Host Computer - Acer S2W 3300U | Service Manual - Page 39
MicraScan show 0XFFFF0027 : Lamp/CCD GAIN error U6 --- IC A3568 6.7 Scan Quality not Good: Mechanism --Window Glass dust White/Black strip dust Old Lamp CCD Mechanism U6 --- IC ASP A3568 6.8 Power Supply 6.8.1 No Function after Power On: Q1 --- PWR 78L12 Q6 --- PWR 78L05 6.8.1 When MicraScan show - Acer S2W 3300U | Service Manual - Page 40
6.9 CCD Head When MicraScan show 0XFFFF0027 U5 --- IC CCD TOS3568 / NEC8861 Q1,Q2 --- XTOR 2N3904 - Acer S2W 3300U | Service Manual - Page 41
Chapter 7 Maintenance This chapter gives step by step instructions for maintaining the 640BT Scanner. And the Fig.7-1 shows the five major parts of the SLIM6 Scanner, there are Assy Book cover, Assy Up-Case, Assy module Set , pulley seat, spring, belt, Shaft , Main Board , Assy Motor-Set , and Low- - Acer S2W 3300U | Service Manual - Page 42
unplug the connector on the scanner circuit board. - Never turn the power on if there is no shading on the lamp. 7.2. Cover Section (1) Removing the cover A. Open the scan cover B. Lift up the cover and cover hinge in the direction that perpendicular to the scanner window glass. The diagram is shown - Acer S2W 3300U | Service Manual - Page 43
Figure.7-2 (2) Cleaning the document pad There are two methods to clean the document pad in the following: A. Open the cover and directly clean it. B. Remove the cover by the foregoing process Note: You can clean the document pad with a soft cloth dipped lightly in alcohol. 7.3. Case Assy Up Section - Acer S2W 3300U | Service Manual - Page 44
surface with a soft cloth dipping in light alcohol. B. Special cleaning While the dust is appeared inside the window glass, a. Remove the scan cover. b. Remove the case-up by the foregoing process. c. Cleaning the window glass with a soft cloth dipped lightly in alcohol for outside and inside. - Acer S2W 3300U | Service Manual - Page 45
-seat up of the Case-Low. D. Pull the belt out of the clutch of the scan module in the direction shown in Fig.7-5. E. Remove the assembly Fig.7-6 of the shaft shaft-seat and scan module from the scanner base by lifting the front edge of the shaft and taking the end edge of - Acer S2W 3300U | Service Manual - Page 46
1 3 2 Shaft-Seat Belt figure7-5 Figure7-6 - Acer S2W 3300U | Service Manual - Page 47
. B. Remove case assy up section. C. Push the flexible ribs by using a tool to open case assy up and low. D. Move the scan module to the original position. E. Remove the lamp and replace a new one Fig.7-7 ¬ Pull the lamp connector from the inverter board. - Push the clips on - Acer S2W 3300U | Service Manual - Page 48
Be Careful Figure7-8 (3) Removing the CCD Board Loose the screw 1 and 2 in Fig.7-9. CCD Board screw 1 screw 2 Figure7-9 - Acer S2W 3300U | Service Manual - Page 49
lens is fixed by hex screw. The diagram is shown in Fig.7-10. Lebel Cover Lens HEX SCREW LENS Figure7-10 Note: The position of CCD board and lens has been precisely calculated, and the calibration is finished for every Slim6 Scanner. So it's not allowable to loosen these screws and adjust their - Acer S2W 3300U | Service Manual - Page 50
(5) Cleaning the mirrors Through the foregoing process, the carriage only includes three mirrors and lensbox. At this time, it is not necessary to disassemble the mirrors to clean them. You can use soft cloth or cotton to clean their reflective plane. 7.5. Case Assy Low Section This section mainly - Acer S2W 3300U | Service Manual - Page 51
(2) Remove the bracket motor three screws in Fig.7-12. Figure7-12 7.6. About Resolution The resolution is the most important performance of the scanner, and it is under the influence of many factors. Taking the attention to these factors and you can get the maximum resolution and performance. These - Acer S2W 3300U | Service Manual - Page 52
(2) Reflect Plate It is necessary to put the reflect plate on the lamp holder before assembles the lamp. The intensity of light will not be enough, if don't assemble the reflect plate. (3) Mirror If the mirror's surface is too dirty then the reflective light will be affected and the intensity of - Acer S2W 3300U | Service Manual - Page 53
minimum hardware configuration required for using a scanner? A: (1) Processing Capability Pentium PC with USB port, 32MB RAM, 540MB hard disk color display card which can support at least 16-bit color is required.For the professional user, the higher display card which supports more than 24-bit - Acer S2W 3300U | Service Manual - Page 54
other than 11 time periodically There may be some scanner hardware problems. Please contact with the local dealer for the repair. Q: Why does the computer shows "Scanner not found" message ? A: First, Is your Windows supports USB? Please refer to the previous question from the detail information - Acer S2W 3300U | Service Manual - Page 55
recommend the following installation sequence: - install scanner driver first - reboot PC - power on scanner - plug in USB cable into scanner and PC Fifth, recommend you try the most update driver from the web, Please download the most update from the web: http://www.acercm.com.au/service/index.htm - Acer S2W 3300U | Service Manual - Page 56
acercm.com.tw/global/service/scan/drivers.htm http://www.acercm.com/drivers/imaging_drivers.html Q: Is MiraScan (the scanner driver) TWAIN compatible? A: The MiraScan is TWAIN compatible and with this specification, scanners can work with any Windows applications that support the TWAIN standard. The - Acer S2W 3300U | Service Manual - Page 57
blurry? A: (1) Please make sure that the scanning windows is clean. (2) Try to use the most update MiraScan driver. The web site is http://www.acercm.com.au/service/index.htm http://www.acercm-eu.com/downloads/index.cfm http://www.acercm.com.tw/global/service/scan/drivers.htm http://www.acercm.com - Acer S2W 3300U | Service Manual - Page 58
. However, the scanner will still work as normal if you disregard the Hi-color warning message. MiraScan Q: Does all image software support 48-bit scanning image? A: No. Not all image software support 48-bit format image. If the user do scanning with 48-bit in software which do not support, then the - Acer S2W 3300U | Service Manual - Page 59
Parts List Acer S2W 3300U (99.S0861.X3X) 6678-O3E(N/B) Based on Exchange Rate (NTD/USD) = 31 Item Price(USD) I. Packing Material Carton $1.56 Cushion Left $0.20 Cushion Right $0.20 Scanner Bag $0.05 Carton Holder $0.07 II. Accessories OOBE (8-Lingo) $0.26 OOBE (For Scan to palm - Acer S2W 3300U | Service Manual - Page 60
Adapter & USB Cable ItemNo Description 25.10018.011 Adapter (110V Japan) 230V Korea) 25.10018.0A1 Adaptor (220V Argentina) 50.69701.041 USB CABLE Unit Price Min. Order (USD) Qunatity $ 3.21 50 $ 2.06 50 $ 2.71 50 $ 2.71 50 $ 3.30 50 $ 3.10 50 $ 2.86 50 $ 4.01 50 $ 3.51 50 $ - Acer S2W 3300U | Service Manual - Page 61
Appendix C Model No. Define