Vivitek DH75 Series User Manual
  1. Manuals
  2. Brands
  3. Vivitek Manuals
  4. Projector
  5. DH75 Series
  6. User manual

Vivitek DH75 Series User Manual

Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual
DH75 Series
DH75 Series

Advertisement

Table of Contents
loading

Related Manuals for Vivitek DH75 Series

Summary of Contents for Vivitek DH75 Series

  • Page 1 DH75 Series DH75 Series...
  • Page 2 Copyright This publication, including all photographs, illustrations and software, is protected under international copyright laws, with all rights reserved. Neither this manual, nor any of the material contained herein, may be reproduced without written consent of the author. © Copyright 2014 Disclaimer The information in this document is subject to change without notice.
  • Page 3 Important Safety Information Important: It is strongly recommended that you read this section carefully before using the projector. These safety and usage instructions will ensure that you enjoy many years of safe use of the projector. Keep this manual for future reference. Symbols Used Warning symbols are used on the unit and in this manual to alert you of hazardous situations.
  • Page 4 Projector Installation Notice  Place the projector in a horizontal position The tilt angle of the projector should not exceed 15 degrees, nor should the projector be installed in any way other than the desktop and ceiling mount, otherwise lamp life could decrease dramatically, and may lead to other unpredictable damages.
  • Page 5 Cooling notes Air outlet  Make sure the air outlet is 50cm clear of any obstruction to ensure proper cooling.  Air outlet location should not be in front of the lens of other projector to avoid causing illusions.  Keep the outlet at least 100cm away from the inlets of other projectors ...
  • Page 6 Power Safety  Only use the supplied power cord.  Do not place anything on the power cord. Place the power cord where it will not be in the way of foot traffic.  Remove the batteries from the remote control when storing or not in use for a prolonged period. Replacing the Lamp Replacing the lamp can be hazardous if done incorrectly.

  • Page 7: Table Of Contents

    Table of Contents GETTING STARTED ................................1 ................................1 ACKING HECKLIST ............................... 2 IEWS OF ROJECTOR ARTS Front-right View ................................2 Top view—On-screen Display (OSD) buttons and LEDs ..................3 Rear view ..................................4 Bottom view ................................... 6 ..............................7 EMOTE ONTROL ARTS...
  • Page 8 HDMI Q & A ..................................57 SPECIFICATIONS ................................58 ................................. 58 PECIFICATIONS ........................59 ROJECTION ISTANCE VS ROJECTION Projection Distance and Size Table ......................... 59 ................................ 60 IMING ABLE ..............................62 ROJECTOR IMENSIONS REGULATORY COMPLIANCE ............................63 FCC W .................................. 63 ARNING ....................................

  • Page 9: Getting Started

    ETTING TARTED Packing Checklist Carefully unpack the projector and check that the following items are included: NTERACTIVE ROJECTOR EMOTE CONTROL VGA C OWER CORD ABLE AAA B ATTERIES CD-ROM UICK TART ARRANTY ’ S MANUAL CD-ROM CABLE AAA B NTERACTIVE DRIVER AND ATTERIES TAPE TO MINI &...

  • Page 10: Views Of Projector Parts

    Views of Projector Parts Front-right View ABEL ESCRIPTION EE PAGE Lamp cover Removes cover to replace lamp module IR receiver Receives IR signal from remote control Lens Projection Lens Focus ring Focuses the projected image Manual Lens shift For Image vertical shift adjustment (Reserved) See Top view—On-screen Display (OSD) Function keys buttons and LEDs.

  • Page 11: Top View-On-Screen Display (Osd) Buttons And Leds

    Top view—On-screen Display (OSD) buttons and LEDs ABEL ESCRIPTION PAGE MENU Opens and exits OSD menus Navigates in the OSD Quick Menu – For Keystone SOURCE Enter the Source menu Navigates and changes settings in the OSD Enter or confirm highlighted OSD menu item AUTO Optimizes image size, position, and resolution Navigates and changes settings in the OSD...

  • Page 12: Rear View

    Rear view 2 3 4 5 6 7 8 9 14 13 12 ABEL ESCRIPTION EE PAGE Security bar For security and authorized usage Secure to permanent object with a Kensington Lock Kensington lock system USB POWER (5V-2A) Connect the USB cable for power supply.(For DT01 use) AUDIO L/R Connect an AUDIO cable from the audio device (For VIDEO/ S-VIDEO)
  • Page 13 Note: If your video equipment has various input sources, it is recommended to connect in priority of HDMI/DVI, component (thru VGA), Composite for better picture quality. Note: User should install driver before used Interactive function. For more detail see driver disc. Warning: As a safety precaution, disconnect all power to the projector and connecting devices before making connections.

  • Page 14: Bottom View

    Bottom view ABEL ESCRIPTION EE PAGE Tilt adjustor Rotate adjuster lever to adjust angle position Contact your dealer for information on mounting the projector on a Ceiling support holes ceiling Note: When installing, ensure that you use only UL Listed ceiling mounts. For ceiling installations, use approved mounting hardware and M4 screws with a maximum screw depth of 12 mm (0.47 inch).

  • Page 15: Remote Control Parts

    Remote Control Parts Important: 1. Avoid using the projector with bright fluorescent lighting turned on. Certain high-frequency fluorescent lights can disrupt remote control operation. 2. Be sure nothing obstructs the path between the remote control and the projector. If the path between the remote control and the projector is obstructed, you can bounce the signal off certain reflective surfaces such as projector screens.
  • Page 16 ABEL ESCRIPTION EE PAGE IR transmitter Transmits signals to projector Status LED Lights when the remote control is used Laser Press to operate the on-screen pointer Up arrow when connected through USB to a PC Right Right arrow when connected through USB to a PC Down Down arrow when connected through USB to a PC Page Down...

  • Page 17: Remote Control Operating Range

    Remote Control Operating Range The remote control uses infrared transmission to control the projector. It is not necessary to point the remote directly at the projector. Provided you are not holding the remote perpendicular to the sides or the rear of the projector, the remote will function well within a radius of about 7 meters (23 feet) and 15 degrees above or below the projector level.

  • Page 18: Setup And Operation

    ETUP AND PERATION Inserting the Remote Control Batteries Remove the battery compartment cover by sliding the cover in the direction of the arrow. Insert the battery with the positive side facing up. Replace the cover. Caution: 1. Only use AAA batteries (Alkaline batteries are recommended). 2.

  • Page 19: Starting And Shutting Down The Projector

    Starting and Shutting down the Projector Connect the power cord to the projector. Connect the other end to a wall outlet. Turn on the connected devices. Ensure the POWER LED displays a solid green. Then press the POWER button to turn on the of the remote projector.

  • Page 20: Setting An Access Password (Security Lock)

    Setting an Access Password (Security Lock) You can use the four (arrow) buttons to set a password and prevent unauthorized use of the projector. When enabled, the password must be entered after you power on the projector. (See Navigating the OSD on page Setting the OSD Language on page...
  • Page 21 You can use the cursor buttons ▲▼◄► either on keypad or IR remote control for password entry. You can use any combination including the same arrow five times, but not less than five. Press the cursor buttons in any order to set the password.

  • Page 22: Adjusting The Projector Level

    Adjusting the Projector Level Take note of the following when setting up the projector:  The projector table or stand should be level and sturdy.  Position the projector so that it is perpendicular to the screen.  Ensure the cables are in a safe location. You could trip over them. To adjust the angle of the picture, turn the tilt-adjuster right or left until the desired angle has been achieved.

  • Page 23: Adjusting The Focus And Keystone

    Adjusting the Focus and Keystone Use the Image-focus control (on the projector only) to sharpen the projected image Use the KEYSTONE buttons on the remote control to correct image-trapezoid (wider top or bottom) effect. The keystone control appears on the display. Adjusting the Volume Press the Volume +/- buttons on the remote...

  • Page 24: On-Screen Display (Osd) Menu Settings

    (OSD) M CREEN ISPLAY ETTINGS OSD Menu Controls The projector has an OSD that lets you make image adjustments and change various settings. Navigating the OSD You can use the remote control cursor buttons to navigate and make changes to the OSD. 1.

  • Page 25: Setting The Osd Language

    Setting the OSD Language Set the OSD language to your preference before continuing. 1. Press the MENU button. Press the cursor ◄► button to navigate to Settings 1. Press the cursor ▲▼ button to move to the Advanced 1 menu. (Enter) / ►...

  • Page 26: Osd Menu Overview

    OSD Menu Overview Use the following illustration to quickly find a setting or determine the range for a setting. Main Menu Sub Menu Settings Image Display Mode Presentation, Bright, Game, Movie, TV, sRGB, Blackboard, User Brightness 0~100 Contrast 0~100 Computer Horizontal Position -5~5 (depend on Autolock) Vertical Position...
  • Page 27 Main Menu Sub Menu Settings Settings 1 Source Source reference Input Source Select (IR/Keypad) Projection Normal, Real, Ceiling, Real+Ceiling Aspect Ratio Fill, 4:3, 16:9, Letter Box, Native, 2.35:1 Keystone -40~40 Digital Zoom -10~10 Audio Volume 0~10 Mute Off, On Advanced 1 Language English, Français, Deutsch, Español, Português, 簡体中文, 繁體中文, Italiano,...
  • Page 28 Main Menu Sub Menu Settings Settings 2 Auto Source Off, On No Signal 0~180 Power Off Auto Power Off, On Lamp Mode ECO, Normal, Dynamic ECO Reset All Status Active Source Video Information Lamp Hours(ECO, Normal, Dynamic ECO) Advanced 1 Menu Position Center, Down, Up, Left, Right Translucent Menu...

  • Page 29: Image Menu

    Image Menu Attention ! All of display mode parameters when changed will be saved to user mode. Press the MENU button to open the OSD menu. Press the cursor ◄► button to move to the Image Menu. Press the cursor ▲▼ button to move up and down in the Image menu. Press ◄► to enter and change values for settings.

  • Page 30: Computer Menu

    Computer Menu Press the MENU button to open the OSD menu. Press ◄► to move to the Image menu. Press ▲▼ to move to the Computer menu and then press Enter or ►. Press ▲▼ to move up and down in the Computer menu. ESCRIPTION Press the cursor ◄►...

  • Page 31: Advanced Feature

    Advanced Feature Press the Menu button to open the OSD menu. Press ◄► to move to the Image menu. Press ▼▲ to move to the Advanced menu and then press Enter or ►. Press ▼▲ to move up and down in the Advanced menu. ESCRIPTION Press the cursor ◄►...

  • Page 32: Color Manager

    Color Manager Press the Menu button to open the OSD menu. Press ◄► to move to the Image menu. Press ▼▲ to move to the Color Manager menu and then press Enter or ►. Press ▼▲ to move up and down in the Color Manager menu.

  • Page 33: Settings 1 Menu

    Settings 1 Menu Press the MENU button to open the OSD menu. Press the cursor ◄► button to move to the Settings 1 menu. Press the cursor ▲▼ button to move up and down in the Settings 1 menu. Press ◄► to enter and change values for settings. ESCRIPTION (Enter) / ►...

  • Page 34: Audio

    Audio Press the Menu button to open the OSD menu. Press ◄► to move to the Settings 1 menu. Press ▼▲ to move to the Audio menu and then press Enter or ►. Press ▼▲ to move up and down in the Audio menu. ESCRIPTION Press the ◄►...

  • Page 35: Advanced 1 Feature

    Advanced 1 Feature Press the Menu button to open the OSD menu. Press ◄► to move to the Settings 1 menu. Press ▲▼ to move to the Advanced 1 menu and then press Enter or ►. Press ▲▼ to move up and down in the Advanced 1 menu.
  • Page 36 3D Setting ESCRIPTION Press the cursor ◄► button to enter and select different 3D mode. Press the cursor ◄► button to enter and enable or disable 3D Sync Invert. 3D Sync Invert Press the cursor ◄► button to enter and enable or disable different 3D Format. 3D Format Note: 1.

  • Page 37: Advanced 2 Feature

    Advanced 2 Feature Press the Menu button to open the OSD menu. Press ◄► to move to the Settings 1 menu. Press ▲▼ to move to the Advanced 2 menu and then press Enter or ►. Press ▲▼ to move up and down in the Advanced 2 menu.

  • Page 38: Settings 2 Menu

    Settings 2 Menu Press the MENU button to open the OSD menu. Press the cursor ◄► button to move to the Settings 2 menu. Press the cursor ▲▼ button to move up and down in the Settings 2 menu. ESCRIPTION Press the cursor ◄►...

  • Page 39: Status

    Status Press the cursor ▲▼ button to move up and down in the Settings 2 menu. Select the Status menu and press Enter or ► to enter. ESCRIPTION Active Source Display the activated source. Displays resolution/video information for RGB source and color standard for Video Video Information source.

  • Page 40: Advanced 1 Feature

    Advanced 1 Feature Press the Menu button to open the OSD menu. Press ◄► to move to the Settings 2 menu. Press ▲▼ to move to the Advanced 1 menu and then press Enter or ►. Press ▲▼ to move up and down in the Advanced 1 menu.
  • Page 41 Lamp Hour Reset Please refer to Resetting the Lamp on page to reset the lamp hour counter. Network ESCRIPTION Network State Displays the network connection status. Press ◄► to turn DHCP On or Off. DHCP Note: If you select DHCP Off, complete the IP Address, Subnet Mask, Gateway, and DNS fields.
  • Page 42 Wired LAN Terminal functionalites Remote control and monitoring of a projector from a PC (or Laptop) via wired LAN is also possible. Compatibility with Crestron / AMX (Device Discovery) / Extron control boxes enables not only collective projector management on a network but also management from a control panel on a PC (or Laptop) browser screen.
  • Page 43 LAN RJ45 1. Connect an RJ45 cable to RJ45 ports on the projector and the PC (Laptop). 2. On the PC (Laptop), select Start → Control Panel → Network and Internet. — 35—...
  • Page 44 3. Right-click on Local Area Connection, and select Properties. 4. In the Properties window, select the Networking tab, and select Internet Protocol (TCP/IP). 5. Click Properties. — 36—...
  • Page 45 6. Click Use the following IP address and fill in the IP address and Subnet mask, then click OK. 7. Press the Menu button on the projector. 8. Select Settings 2 → Advanced 1 → RS232 → Network Option 9. After getting into Network, input the following: ...
  • Page 46 12. In the Address bar, input the IP address: 10. 10. 10. 10. (Enter) / ►. 13. Press The projector is setup for remote management. The LAN/RJ45 function displays as follows. — 38—...
  • Page 47 ATEGORY NPUT ENGTH IP Address Crestron Control IP ID Port Projector Name Projector Location Assigned To DHCP (Enabled) (N/A) IP Address Network Configuration Subnet Mask Default Gateway DNS Server Enabled (N/A) User Password New Password Confirm Enabled (N/A) Admin Password New Password Confirm For more information, please visit http://www.crestron.com/.
  • Page 48 RS232 by Telnet Function Besides projector connected to RS232 interface with “Hyper-Terminal” communication by dedicated RS232 command control, there is alternative RS232 command control way, so called “RS232 by TELNET” for LAN/RJ45 interface. Quick Start-Guide for “RS232 by TELNET” Check and get the IP-Address on OSD of the projector. Make sure that laptop/PC can access the web-page of the projector.
  • Page 49 Input the command format like the below: telnet ttt.xxx.yyy.zzz 23 (“Enter” key pressed) (ttt.xxx.yyy.zzz: IP-Address of the projector) If Telnet-Connection ready, and user can have RS232 command input, then “Enter” key pressed, the RS232 command will be workable. How to have TELNET enabled in Windows VISTA / 7 By default installation for Windows VISTA, “TELNET”...
  • Page 50 Select “Turn Windows features on or off” to open Have “Telnet Client” option checked, then press “OK” button. Specsheet for “RS232 by TELNET” Telnet: TCP Telnet port: 23 (for more detail, kindly please get contact with the service agent or team) Telnet utility: Windows “TELNET.exe”...

  • Page 51: Advanced 2 Feature

    Advanced 2 Feature Press the Menu button to open the OSD menu. Press ◄► to move to the Settings 2 menu. Press ▲▼ to move to the Advanced 2 menu and then press Enter or ►. Press ▲▼ to move up and down in the Advanced 2 menu.
  • Page 52 Source Filter Press the ENTER button to enter the Source Filter sub menu. ESCRIPTION Press the ◄► buttons to enter and enable or disable the HDMI1/ MHL-compatible HDMI1/MHL source. Press the ◄► buttons to enter and enable or disable the HDMI2 source. HDMI2 Press the ◄►...

  • Page 53: Maintenance And Security

    AINTENANCE AND ECURITY Replacing the Projection Lamp The projection lamp should be replaced when it burns out. It should only be replaced with a certified replacement part, which you can order from your local dealer. Important: a. The projection lamp used in this product contains a small amount of mercury. b.
  • Page 54 Remove the lamp compartment cover. Remove the two screws from the lamp module. Lift the module handle up. Pull firmly on the module handle to remove the lamp module. Reverse steps 1 to 5 to install the new lamp module. While installing, align the lamp module with the connector and ensure it is...

  • Page 55: Resetting The Lamp

    Resetting the Lamp After replacing the lamp, you should reset the lamp hour counter to zero. Refer to the following: Press the MENU button to open the OSD menu. Press the cursor ◄► button to move to the Settings 2 menu. Press the cursor button to move down to Advanced 1 and press enter.

  • Page 56: Cleaning The Filter (Filter: Optional Parts)

    Cleaning the filter (filter: optional parts) The air filter prevents dust from accumulating on the surface of the optical elements inside the projector. If the filter is dirty or clogged, your projector may overheat or degrading the projected image quality. Turn off the projector, and unplug the AC power cord from the AC outlet.

  • Page 57: Replacing The Filter

    Replacing the Filter Turn off the projector, and unplug the AC power cord from the AC outlet. Clean up the dust on the projector and around the air vents. Pull out the filter cover and remove from the projector Use soft brush gently to clean the filter dust both side.

  • Page 58: Cleaning The Projector

    Cleaning the Projector Cleaning the projector to remove dust and grime will help ensure trouble-free operation. Cleaning the Projector Mirror: Remove dust with a “Bellows/Lens Blower” readily available from Camera shops to prevent scratching the mirror when subsequently wiped. Cautions: 1.

  • Page 59: Cleaning The Case

    Cleaning the Case Refer to the following to clean the projector case. 1. Wipe off dust with a clean dampened cloth. 2. Moisten the cloth with warm water and mild detergent (such as used to wash dishes), and then wipe the case. 3.

  • Page 60: Using The Physical Lock

    Using the Physical Lock Using the Kensington Security Slot If you are concerned about security, attach the projector to a permanent object with the Kensington slot and a security cable. Note: Contact your vendor for details on purchasing a suitable Kensington security cable. The security lock corresponds to Kensington’s MicroSaver Security System.

  • Page 61: Troubleshooting

    ROUBLESHOOTING Common problems and solutions These guidelines provide tips to deal with problems you may encounter while using the projector. If the problem remains unsolved, contact your dealer for assistance. Often after time spent troubleshooting, the problem is traced to something as simple as a loose connection.

  • Page 62: Led Error Messages

    LED Error Messages OWER RROR ESSAGES REEN Lamp Ready Start Flashing Cooling Flashing Over Temperature T1 error 3 blinks 1 blinks Thermal Break Sensor error 4 blinks G794 error 4 blinks 4 blinks Lamp fail 5 blinks Ballast temp over 5 blinks 1 blinks Ballast circuit short...

  • Page 63: Lamp Problems

    3. Ensure the projector-to-screen distance is within the specified range. 4. Check that the projector lens is clean. Problem: The image is wider at the top or bottom (trapezoid effect) 1. Position the projector so it is as perpendicular to the screen as possible. 2.

  • Page 64: Having The Projector Serviced

    2. Adjust the volume of the audio source. 3. Check the audio cable connection. 4. Test the source audio output with other speakers. 5. Have the projector serviced. Problem: The sound is distorted 1. Check the audio cable connection. 2. Test the source audio output with other speakers. 3.

  • Page 65: Hdmi Q & A

    HDMI Q & A Q. What is the difference between a “Standard” HDMI cable and a “High-Speed” HDMI cable? Recently, HDMI Licensing, LLC announced that cables would be tested as Standard or High-Speed cables. 2. ˙Standard (or “category 1”) HDMI cables have been tested to perform at speeds of 75Mhz or up to 2.25Gbps, which is the equivalent of a 720p/1080i signal.

  • Page 66: Specifications

    PECIFICATIONS Specifications Model DH759USTi Display type DMD 0.65" 1080P Resolution 1080P 1920 x 1080 Native 663mm - 833mm Projection distance Projection screen size 16:9 (88”~110”) Projection lens Throw ratio 0.33 : 1 Vertical keystone correction +/- 40 degrees Projection methods Front, Rear, Desktop/Ceiling (Rear, Front) Data compatibility VGA, SVGA, XGA, SXGA, UXGA, Mac...

  • Page 67: Projection Distance Vs. Projection Size

    Projection Distance vs. Projection Size Projection Distance and Size Table DH759USTi 1080P 16:9 Diagonal 88.9" 99" 102" 110" Distance 340.3+/-20mm 421.4+/-20mm 445.8+/-20mm 510.5+/-20mm Image Width 1968mm 2194mm 2262mm 2435mm Image height 1107mm 1234mm 1272mm 1370mm 331.2+/-50mm 362.8+/-50mm 372.3+/-50mm 397.6+/-50mm — 59—...

  • Page 68: Timing Mode Table

    Timing Mode Table DP/HDMI OMPOSITE IGNAL ESOLUTION OMPONENT ( KH IDEO NALOG IGITAL ○ － － － － NTSC 15.734 ○ － － － － PAL/SECAM 15.625 ○ ○ － － 720 x 400 31.5 70.1 ○ ○ － － 720 x 400 37.9 85.04...
  • Page 69 DP/HDMI OMPOSITE IGNAL ESOLUTION OMPONENT ( KH IDEO NALOG IGITAL ○ ○ － － 1440 x 900 70.6 ○ ○ － － 1600 x1200 ○ ○ － － 1680 x 1050 64.7 59.9 ○ ○ － － 1680 x 1050 65.3 ○...

  • Page 70: Projector Dimensions

    Projector Dimensions — 62—...

  • Page 71: Regulatory Compliance

    EGULATORY OMPLIANCE FCC Warning This equipment has been tested and found to comply with the limits for a Class B digital device pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications.

  • Page 72: Rs-232C Protocol

    PPENDIX RS-232C Protocol RS232 Setting Baud rate: 9600 Parity None check: Data bit: Stop bit: Flow None Control Minimum delay for next command: 1ms Control Command Structure Header code Command code Data code End code Command Data ‘V’ ASCII Command Data Operation Command Note:...
  • Page 73 Command Group 01 Return ASCII Function Description Value VXXG0101 56h Xh Xh 47h 30h 31h 30h 31h 0Dh Get Brightness n=0~100 Pn/F VXXS0101n 56h Xh Xh 53h 30h 31h 30h 31h nh 0Dh Set Brightness n=0~100 VXXG0102 56h Xh Xh 47h 30h 31h 30h 32h 0Dh Get Contrast n=0~100 Pn/F...
  • Page 74 Command Group 02 Return ASCII Function Description Value VXXS0204 56h Xh Xh 53h 30h 32h 30h 34h 0Dh Select Video VXXS0205 56h Xh Xh 53h 30h 32h 30h 35h 0Dh Select S-Video VXXS0206 56h Xh Xh 53h 30h 32h 30h 36h 0Dh Select HDMI VXXS0207 56h Xh Xh 53h 30h 32h 30h 37h 0Dh Select BNC...
  • Page 75 Command Group 03 Return ASCII Function Description Value 0:Front 1:Rear VXXG0308 56h Xh Xh 47h 30h 33h 30h 38h 0Dh Projection Mode Pn/F 2:Ceiling 3:Rear+Ceiling 0:Front 1:Rear VXXS0308n 56h Xh Xh 53h 30h 33h 30h 38h nh 0Dh Projection Mode 2:Ceiling 3:Rear+Ceiling Set vertical...
  • Page 76 Command Group 03 Return ASCII Function Description Value VXXS0320 56h 39h 39h 53h 30h 33h 32h 30h 0Dh Screen Capture 0:STD VXXG0321 56h 39h 39h 47h 30h 33h 32h 31h 0Dh Get Splash Logo 1:Off Pn/F 2:User 0:STD VXXS0321n 56h 39h 39h 53h 30h 33h 32h 31h nh 0Dh Set Splash Logo 1:Off 2:User 0:Normal...

This manual is also suitable for:

Dh759usti

Table of Contents