Sony VPL-HW15 Service Manual ▷ View online
9
VPL-HW15
_ EXT VIEW _
1
5
6
9
D4
D5
D6
D7
(MSB)
(LSB)
(EVEN)
BIT
PARITY STOP
BIT
START
D3
D2
D1
D0
3. RS-232C
3-1. Connection
The RS-232C pin assignment is shown below.
REMOTE: RS-232C (D-sub 9-pin, Female)
Pin No.
Signal name
Function
1 N.C.
_
2 RxD Receive
Data
3 TxD Transmit
Data
4 N.C.
_
5 GND Signal
Ground
6 N.C.
_
7 N.C.
_
8 N.C.
_
9 N.C.
_
3-2. Communication
Specifi cations
. Full duplex communication channels (Flow control not performed.)
. Start-stop synchronism system
. Baud rate: 38.4 kbps (bits per second)
. The bit confi guration is defi ned as follows.
. Start-stop synchronism system
. Baud rate: 38.4 kbps (bits per second)
. The bit confi guration is defi ned as follows.
1 START Bit + 8 DATA Bits + 1 PARITY Bit + 1 STOP Bit
EVEN Parity ............Total number of “1”s from D0 to D7 is an even number.
8 0
............Total number of “1”s from D0 to D7 is an odd number.
8 1
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VPL-HW15
CONTROLLER
PROJECTOR
W
aiting T
ime
45
ms
ms
Send Command
Receive Command
(ACK/NAK/REPLY)
Send Command (Infrared Remote Command)
Send Command (Infrared Remote Command)
The command is executed if it’s valid.
Then, the receive command is sent to
the CONTROLLER.
Then, the receive command is sent to
the CONTROLLER.
3-3. Communication
Procedure
RS-232C communication sequence is shown below. Each command must be issued by CONTROLLER
and PROJECTOR responses to it.
and PROJECTOR responses to it.
Fig. 3-1 Command Sequence
It is prohibited that CONTROLLER send another command before receiving the response to the previous
command. Since PROJECTOR executes the command before sending the return data, CONTROLLER
must wait a while before receiving the response. The waiting time depends on the commands. Approxi-
mate waiting time is shown below.
command. Since PROJECTOR executes the command before sending the return data, CONTROLLER
must wait a while before receiving the response. The waiting time depends on the commands. Approxi-
mate waiting time is shown below.
30 to 2500 milliseconds
n
No response is sent for Infrared Remote Command. Therefore, it should be waited for 45 milliseconds
before sending the next command.
No response is sent for Infrared Remote Command. Therefore, it should be waited for 45 milliseconds
before sending the next command.
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VPL-HW15
START CODE
B0
B1
B2
B2
B4
B3
DATA
ITEM NUMBER
TYPE
CHECK SUM
*1
END CODE
B5
B6
B7
[A9h]
Put the item number. Refer to the item list in the sections 2-1-1 and 2-1-2.
SET: 00h (Set data)
GET: 01h (Get data)
GET: 01h (Get data)
SET:
Put the Data value described in the item list in the sections 2-1-1 and 2-1-2.
GET: Unused. Set Dummy data [00h, 00h]
Check Sum
[9Ah]
START CODE
B0
B1
B2
B2
B4
B3
DUMMY DATA
ACK / NAK
TYPE
CHECK SUM
*1
END CODE
B5
B6
B7
[A9h]
Refer to the reply definition table in the section 2-2.
[03h]
This data does not mean any senses.
Dummy Data [00h, 00h] is stored.
Dummy Data [00h, 00h] is stored.
Check Sum
[9Ah]
3-4. Command Block Format
There is one type of block format for RS-232C as shown in the Fig. 1-1. In this section, the block format
for Simplifi ed Command is provided.
for Simplifi ed Command is provided.
3-4-1. Simplifi ed Command
[Send]
The block format for sending request is shown below.
The block format for sending request is shown below.
[Receive (without data)]
The block format for response which includes no return data is shown below. Response is always sent by
PROJECTOR.
The block format for response which includes no return data is shown below. Response is always sent by
PROJECTOR.
[Receive (with data)]
The block format for response which includes return data is shown below. Response is always sent by
PROJECTOR.
The block format for response which includes return data is shown below. Response is always sent by
PROJECTOR.
*1: CHECK SUM: B1 to B5 are calculated by OR. Refer to the example below.
<Example of Calculation>
0xA9 1010 1001 0xA9 1010 1001
0xA9 1010 1001 0x9A 1001 1010
Answer
1010 1001 Answer
1011 1011
0xA9
0xBB
START CODE
B0
B1
B2
B2
B4
B3
DATA
ITEM NUMBER
TYPE
CHECK SUM
*1
END CODE
B5
B6
B7
Check Sum
[9Ah]
[A9h]
Refer to the item list in the sections 2-1-1 and 2-1-2.
[02h]
Express data to be Reply data
Express data to be Reply data
Data value described in the item list
in the sections 2-1-1 and 2-1-2.
in the sections 2-1-1 and 2-1-2.
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VPL-HW15
3-5. Packet
Examples
3-5-1. Change “Wide Mode” to “Zoom”
START CODE = A9h
ITEM NUMBER = 0020h (Wide Mode)
SET/GET = 00h (SET)
DATA = 0003h (Zoom)
CHECK SUM = 23h
END CODE = 9Ah
ITEM NUMBER = 0020h (Wide Mode)
SET/GET = 00h (SET)
DATA = 0003h (Zoom)
CHECK SUM = 23h
END CODE = 9Ah
You will receive the packet below if the process is successfully completed.
START CODE = A9h
ACK/NAK = 0000h (Complete)
ACK = 03h
DUMMY DATA = 0000h
CHECK SUM = 03h
END CODE = 9Ah
ACK/NAK = 0000h (Complete)
ACK = 03h
DUMMY DATA = 0000h
CHECK SUM = 03h
END CODE = 9Ah
There’s another way to realize the same purpose. There is “WIDE MODE TOGGLE” key on the infrared
remote controller. By using this key, wide mode can be changed. Issue the Infrared Remote Command for
this key several times to set wide mode “Zoom”. Packet format will make as follows. Refer to the Table
2-7 for wide mode toggle.
remote controller. By using this key, wide mode can be changed. Issue the Infrared Remote Command for
this key several times to set wide mode “Zoom”. Packet format will make as follows. Refer to the Table
2-7 for wide mode toggle.
START CODE = A9h
ITEM NUMBER = 196Eh (WIDE MODE TOGGLE)
SET/GET = 00h (SET)
DATA = 0000h
CHECK SUM = 7Fh
END CODE = 9Ah
ITEM NUMBER = 196Eh (WIDE MODE TOGGLE)
SET/GET = 00h (SET)
DATA = 0000h
CHECK SUM = 7Fh
END CODE = 9Ah
3-6. AMX Device Discovery
This model is equipped with the protocol that conforms to the Device Discovery stipulated by AMX. Con-
tact AMX for details about the Device Discovery.
tact AMX for details about the Device Discovery.
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