Mipro Electronics Co ACT8H Transmitter User Manual ACT8H ACT8T 2CE263

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Document ID	754174
Application ID	CjIMC8Qrl7OMEVS49+TXNA==
Document Description	Manual part 3
Short Term Confidential	No
Permanent Confidential	No
Supercede	No
Document Type	User Manual
Display Format	Adobe Acrobat PDF - pdf
Filesize	220.83kB (2760430 bits)
Date Submitted	2007-02-02 00:00:00
Date Available	2007-02-02 00:00:00
Creation Date	2007-02-01 10:21:09
Producing Software	Corel PDF Engine Version 9.397
Document Lastmod	2007-02-01 10:21:21
Document Title	ACT8H-ACT8T(2CE263).cdr
Document Creator	CorelDRAW Version 9.397
Document Author:	onegreen

DIGITAL WIRELESS BODY PACK TRANSMITTER
DIGITAL WIRELESS BODY PACK TRANSMITTER
A. Operate via MODE Button
(1)GR-CH: Displays Information of Group and Channel
MODE
FREQ
RF
RF
B. Operation Guide:
BT
AF
a.
BT
AF
Press ''MODE'' and stop on "FREQ" function, the display showing current
frequency will be flashing. After 5 seconds, the display will stop flashing.
"FREQ" function is added to display frequency information. Changing current
frequency must be done on the receiver.
B.
A. Operate via MODE Button
MODE
**NOTE: To modify transmitter's group, channel and frequency, all
three must be set at the receiver and transmit the new setting to
transmitter via ACT.
GR--CH
B. Operation Guide:
a.
b.
Press ''MODE'' and stop on "GR-CH" function, the display showing current group
and channel will be flashing. After 5 seconds, the display will stop flashing.
"GR-CH" function is added to display group and channel information. Changing
current group and channel must be done on the receiver.
(3) LOW-CU: Setup and Change of Low Frequency Cut Off
SET
OFF
SET
**NOTE: When program a special frequency via monitoring software;
LCD screen cannot display the number. This is because this special
channel is not in the preset group and channel. Therefore, LCD panel
will look like illustration below.
RF
RF
BT
AF
ON
RF
BT
AF
AF
BT
RF
RF
BT
AF
AF
A. Operate via MODE Button
OFF
BT
MODE
LOW--CU
ON
SET
(2) FREQ: Displays Information of Transmitter Frequency
B. Operation Guide:
a.
RF
RF
b.
BT
AF
AF
Press ''MODE'' and stop on "LOW-CU" function, the display showing current state
will be flashing and is ready to be modified.
Press ''SET'' button to change to ''ON'' or ''OFF'' as desired.
**NOTE: When the LOW-CU function is ''ON'', the frequency response
below 100Hz will decrease about 4dB with a slope of -6dB/Octave.
BT
"MHz"
15
165
DIGITAL WIRELESS BODY PACK TRANSMITTER
DIGITAL WIRELESS BODY PACK TRANSMITTER
A. Operate via MODE Button
(4) AF-SEN: Setup and Change of Input Sensitivity
OFF
SET
RF
RF
10dB
MODE
RF
LIMIT
ON
SET
BT
AF
BT
AF
B. Operation Guide:
BT
AF
a.
b.
A. Operate via MODE Button
Press "MODE" and stop on "LIMIT" function, the display showing current state will
be flashing and is ready to be modified.
Press ''SET'' to change the setting to "ON" or "OFF".
**NOTE: When the LIMIT is ''ON'', the maximum output of the receiver is limited to 1V.
MODE
AF--SEN
0 DB
10 DB
20 DB
30 DB
SET
SET
SET
SET
B. Operation Guide:
a.
(6) ENCRYP: Displays Information of Encryption
Press "MODE" and stop on "AF-SEN" function, the display showing current state
will be flashing and is ready to be modified.
Every push of ''SET'' button, the dB value increases by 10dB to a maximum of
30dB.
b.
0 DB
10 DB
20 DB
A. Operate via MODE Button
30 DB
ON
MODE
**NOTE:
1. The higher the gains are set, the lower the dynamic range for signal input.
Meanwhile the danger of unwanted noises and feedback getting into the system would
obviously rise.
2. It is advisable to set the sensitivity level at 0dB when using electric guitar.
OFF
B. Operation Guide:
a.
3. When set at 0 dB, the maximum input level without causing distortion to the
transmitter is 1 Vrms (0 dBv). Hence, please make sure the input signal does not
exceed 1 Vrms. SPL for handheld microphone is 145dB.
OFF
SET
RF
RF
BT
AF
AF
ON
RF
BT
AF
Press "MODE" and stop on "ENCRYP" function, the display showing current state
will be flashing.
**NOTE: "ENCRYP" function is added to display status information only. Changing of
current status must be done from receiver via ACT.
(5) LIMIT: Setup and Change of Input Limit
SET
ENCRYP
BT
17
18
DIGITAL WIRELESS BODY PACK TRANSMITTER
7. BT: Displays Information of Battery Level
DIGITAL WIRELESS BODY PACK TRANSMITTER
4. Cautions
1.
BT
BT
100% 90%
BT
BT
BT
BT
80%
40%
10%
0%
2.
When the battery level drops down to 10%, please replace or recharge the
battery. If the battery continues to be used at a very lower level, the LCD will
display "PO--OFF" and then automatically switch off to avoid over-discharging the
battery.
Adjust the gain knob to the appropriate level (The gain level needs to be set
at 0dB level when using an electric guitar).
Plug the microphone connector into the AF input (1) and then secure the
connector by turning it in a clockwise direction, as shown in Fig. 4.
Capsule Connector
Headset
Lavalier
The ridge on the
connector must match the
indentation on the socket
when inserting.
8. ERR: Error Code
If the LCD displays ''ERR'' after turning on the power, it indicates the
operation is not correct. The error codes are as follows:
ROM-ER
Transmitter does not have the initial data so the
microphone is completely dead.
ERROR1
Failure on RF circuitry, frequency can not be
programmed.
NO----O3
Frequency to be programmed into the transmitter
exceeds its highest frequency of designated frequency
band of the transmitter.
NO----O4
(Fig.4)
Frequency to be programmed into the transmitter
exceeds its lowest frequency of designated frequency
band of the transmitter.
3.
4.
**NOTE:
NO----OR3 and NO----OR4 will not change transmitter's original frequency, and the
transmitter still operates normally with error message on display.. To remove error
message from display panel, please switch off the transmitter and switch it on again.
(9) PO-OFF: System Turning Off
When the power is turned off, the LCD displays ''PO-OFF''
indicating the system is at the state of shutting down and then
automatically cuts the power off. The display panel has no further
message afterward.
19
20
When the antenna has been removed, the body pack transmitter should
remain ''OFF'' to prevention future deterioration of signal transmission.
If the transmitter is on without any microphone connected to the AF input
socket, the system will clearly have noises of both high and low frequencies.
They will do no harm to the system, but will be annoying to the listener, so it
would be best to switch off the transmitter when disconnecting the
microphone.
DIGITAL WIRELESS BODY PACK TRANSMITTER
5. AF Input Connection Methods
6. High Frequency Bypass
a.
(1) 2-Wire Electret Condenser Microphone Capsule
SHIELD
AUDIO
PIN
DIGITAL WIRELESS BODY PACK TRANSMITTER
b.
When other microphones are in use, some changes may be needed to
another microphone before adding it to the system in order to avoid high
frequency interference, as illustrated in diagram (1).
When a high frequency radio wave causes interference, it normally affects
the system by generating a persistent noise or by deteriorating the frequency
response. In an effort to ameliorate these problems, a 330PF bypass
condenser can be added on the cartridge as shown in diagrams (1) and (2).
If this method is not possible, another option is to add a bypass condenser
on the 4-pin XLR connector as shown in diagrams (3) and (4).
(2) 3-Wire Electret Condenser Microphone Capsule
SHIELD
PIN
AUDIO
BIAS
**The Best Method
(1)
(2)
(3) Dynamic Microphone
SHIELD
PIN
AUDIO
330PF
330PF
**Alternate Method
(3)
(4)
(4) Electric Guitar
330PF
SHIELD
PIN
AUDIO
PIN
PIN
330PF
(5) Line-in (Impedance 8K
SHIELD
AUDIO
ATT. 10dB)
PIN
21
22

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