Dukane Imagepro 8928 Projector Technical Manual

1
Example of PC signal
Projector
User's Manual (detailed)  
Operating Guide – Technical
8755N/8928/8929W 
8930/8931W/8937
*1) Supported except for HDMI input.
*2) Only for 8755N/8928/8930/8937.
*3) Only for 8929W/8931W.
Resolution (H x V) H. frequency (kHz) V. frequency (Hz) Rating Signal mode720 x 400 37.9
85.0 VESA TEXT
640 x 480 31.559.9 VESA VGA (60Hz)
640 x 480 37.972.8 VESA VGA (72Hz)
640 x 480 37.575.0 VESA VGA (75Hz)
640 x 480 43.385.0 VESA VGA (85Hz)
800 x 600 35.256.3 VESA SVGA (56Hz)
800 x...

2
Initial set signals
Initial set signals
The  following  signals  are  used  for  the  initial  settings.  The  signal  timing  of  some 
PC  models  may  be  different.  In  such  case,  adjust  the  items  V  POSITION  and  H 
POSITION in the IMAGE menu. 
 
Resolution (H x V) Horizontal signal timing (μs)
Vertical signal timing (lines)
Signal mode
(A) (B)(C) (D) (a) (b)(c) (d)
720 x 400 2.0 3.0 20.3 1.0 3 42 400 1 TEXT
640 x 480 3.8 1.9 25.4 0.6 2 33 480 10 VGA (60Hz)
640 x 480 1.3 4.1 20.3 0.8 3 28...

3
Connection to the ports
Connection to the ports
NOTICE►Use the cables with straight plugs, not L-shaped ones, as  the 
input ports of the projector are recessed.
 




AUDIO IN1
2
3AUDIO OUT
AB
C
ACOMPUTER IN1, BCOMPUTER IN2, CMONITOR OUT
D-sub 15pin mini shrink jack

•  Video signal: RGB separate, Analog, 0.7Vp-p, 75Ω terminated (positive)
• H/V. sync. signal: TTL level (positive/negative)
• Composite sync. signal: TTL level

•   Video signal:   
-Y, Analog, 1.0±0.1Vp-p with...

4
DS-VIDEO
Mini DIN 4pin jack
• System: NTSC, PAL, SECAM, PAL-M, PAL-N, NTSC4.43, PAL (60Hz)
PinSignal
1 Color signal 0.286Vp-p (NTSC, burst), 75Ω terminator
Color signal 0.300Vp-p (PAL/SECAM, burst) 75Ω terminator
2 Brightness signal, 1.0Vp-p, 75Ω terminator
3 Ground
4 Ground
Connection to the ports (continued)
4 3
21
EVIDEO
RCA jack
• System: NTSC, PAL, SECAM, PAL-M, PAL-N, NTSC4.43, PAL (60Hz)
• 1.0±0.1Vp-p, 75Ω terminator
AUDIO IN1
2
3AUDIO OUTD
F
E
FHDMI
• Type :HDMITM connector
• Audio signal :...

5
AUDIO IN1
2
3AUDIO OUT
Connection to the ports (continued)
KM
GAUDIO IN1, HAUDIO IN2
Ø3.5 stereo mini jack
• 200 mVrms 47kΩ terminator
AUDIO IN3 IR, JL  AUDIO OUT KR, LL
RCA jack x2  RCA jack x2
• 200 mVrms 47kΩ terminator  • 200 mVrms 1kΩ output impedance
M MIC
Ø3.5 mono mini jack

• 2 mVrms, 1kΩ terminator

• 20 mVrms, 1kΩ terminator
I
JG
H
L 

6
Connection to the ports (continued)
NCONTROL
D-sub 9pin plug
  •   About the details of RS-232C communication,   
please refer to the next chapter.
Pin Signal Pin Signal Pin Signal
1 (No connection) 4 (No connection) 7 RTS
2 RD 5 Ground8 CTS
3 TD 6 (No connection) 9 (No connection)
6
5 4 3 2 1 9
8
7
AUDIO IN1
2
3AUDIO OUT
PUSB TYPE B
USB B type jack
Pin Signal
1 +5V
2 - Data
3 + Data
4 Ground
43
12
OUSB TYPE A (x2)
USB A type jack4321
Pin Signal
1 +5V
2 - Data
3 + Data
4 Ground
QLAN
RJ-45 jack87654321...

7
AUDIO IN1
2
3AUDIO OUT       Y       CB/PB     CR/PRCOMPONENT VIDEO OUT
To input component video signal to COMPUTER IN ports
  ex.
Connection to the ports (continued)
To input component video signal to the COMPUTER IN1 or COMPUTER IN2 port 
of the projector, use a RCA to D-sub cable or adapter. 
For about the pin description of the required cable or adapter, refer to the 
descriptions about  COMPUTER IN1 or COMPUTER IN2 port (
&3).
RCA plugs
D-sub plug
VCR/DVD/Blu-ray 
Disc player
RCA connectors 

8
RS-232C Communication
RS-232C Communication
When the projector connects to the computer by RS-232C communication, the 
projector can be controlled with RS-232C commands from the computer. 
For details of RS-232C commands, refer to RS-232C Communication / Network 
command table (
&17 ).
Connection
1. Turn off the projector and the computer.
2.  Connect the projector's 
CONTROL port and the computer's RS-232C port 
with a RS-232C cable (cross). Use the cable that fulfi lls the specifi cation...

9
RS-232C Communication (continued)
Communication settings 
1. Protocol
19200bps,8N1
2. Command format  ("h" shows hexadecimal) 
Byte Number0 1 2 3 4 5 6 7 8 9 10
1112
Command
Action Header
Data
Header code
Packet
DatasizeCRC  flag Action Type Setting 
code
L H LH LH LH LH LH
Change setting to 
desired value [(bL)(bH)] 
by [(cL)(cH)].
BEh EFh 03h 06h 00h (aL)
(aH) 01h 00h (bL) (bH) (cL) (cH)
Read projector 
internal setup value [(bL)
(bH)] .(aL) (aH) 02h 00h (bL) (bH) 00h 00h
 
Increment setup...

10
RS-232C Communication (continued)
3. Response code / Error code ("h" shows hexadecimal)
(1)   
ACK reply : 06h 
When the projector receives the Set, Increment, Decrement or Execute 
command correctly, the projector changes the setting data for the specified 
item by [Type], and it returns the code.
(2)   NAK reply : 15h 
When the projector cannot understand the received command, the projector 
returns the error code. 
In such a case, check the sending code and send the same command again.
(3)...