Korg Calculator TPB 2 User Manual

KORG INC. 4015-2 Yanokuchi, Inagi-city, Tokyo 206-0812 Japan  
2004 KORG INC.  
1506 EH Printed in Japan  
©
CE mark for European Harmonized Standards  
CE mark which is attached to our company’s products of AC mains operated  
apparatus until December 31, 1996 means it conforms to EMC Directive (89/  
336/EEC) and CE mark Directive (93/68/EEC).  
Warning  
When installing, servicing, or replacing parts for this product, do not perform any  
action that is not prescribed in the owner's manual.  
And, CE mark which is attached after January 1, 1997 means it conforms to  
EMC Directive (89/336/EEC), CE mark Directive (93/68/EEC) and Low Voltage  
Directive (73/23/EEC).  
Do not apply excessive force to the electronic components or connectors on the  
circuit board, and do not disassemble it. Electrical shock, fire, or malfunction may  
result.  
Before installing this product, disconnect the power supply cable of the device in  
which it is being installed, and disconnect any cables that connect peripheral  
devices. Failure to do so may cause electrical shock or malfunctions.  
Also, CE mark which is attached to our company’s products of Battery operated  
apparatus means it conforms to EMC Directive (89/336/EEC) and CE mark  
Directive (93/68/EEC).  
IMPORTANT NOTICE TO CONSUMERS  
This product has been manufactured according to strict specifications and  
voltage requirements that are applicable in the country in which it is intended  
that this product should be used. If you have purchased this product via the  
internet, through mail order, and/or via a telephone sale, you must verify that  
this product is intended to be used in the country in which you reside.  
Caution  
Do not allow this product to become wet, and do not place objects on top of it.  
Doing so will cause malfunctions.  
Before touching this product, touch a metal part of the device into which it will be  
installed, so that any static electricity in your body will be discharged. Failure to do  
so will risk damaging the electronic components by static electricity.  
When handling this product, be careful not to touch the leads (wires protruding  
from the electronic components) on the rear side of the circuit board. Injury may  
result.  
WARNING: Use of this product in any country other than that for which it is  
intended could be dangerous and could invalidate the manufacturer's or  
distributor's warranty.  
Please also retain your receipt as proof of purchase otherwise your product  
may be disqualified from the manufacturer's or distributor's warranty.  
When installing this product, do not touch any unrelated parts or circuit boards.  
Electric shock or malfunction may result.  
When installing this product, be careful not to cut yourself on any sharp edges or  
parts of this product or of the device into which this product is being installed.  
When installing this product, be careful not to drop screws etc. into the device into  
which this product is being installed.  
Installing this product  
For the procedure of installing this product, refer to the owner's manual of the  
device into which the product is being installed. If you have any questions, please  
contact your local Korg distributor.  
Cautions when installing an option board  
The manufacturer makes no warrantee regarding possible malfunctions or  
damage that may result from improper use or modification. The manufacturer  
also will take no responsibility for any damages that may result from loss or  
disappearance of data.  
In order to install the board correctly, please pay attention to the following points.  
Be careful of static electricity, which may damage components inside the product  
or on the board. Before beginning the installation, touch an unpainted metal part of  
the chassis or the grounding terminal of a grounded device to discharge any static  
electricity that may be present in your body.  
Perform the installation according to the steps given in the directions, making sure  
that the board is installed correctly and in the correct orientation.  
Verify that the option board has been installed correctly. If installation is incorrect,  
faulty connections or a shorted power supply can cause malfunctions.  
All the screws that are removed will be used, so be careful not to lose any.  
Using screws of the incorrect shape or length can cause malfunctions or damage  
to the product. Use only the screws that were included with the option board or the  
screws that were fastened in the instrument.  
When installing or removing the board, be careful not to drop parts or the option  
board into the instrument.  
Make sure that the attaching screws are tightened firmly, and are not loose.  
Handle the board with care. Subjecting it to physical shock (by dropping or  
pressing it) may cause damage or malfunctions.  
THE FCC REGULATION WARNING (for U.S.A.)  
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 in a  
residential installation. This equipment generates, uses, and can radiate radio  
frequency energy and, if not installed and used in accordance with the  
instructions, may cause harmful interference to radio communications.  
However, there is no guarantee that interference will not occur in a particular  
installation. If this equipment does cause harmful interference to radio or  
television reception, which can be determined by turning the equipment off and  
on, the user is encouraged to try to correct the interference by one or more of  
the following measures:  
• Reorient or relocate the receiving antenna.  
Be careful not to touch any exposed metal portions of the circuit board, or any  
parts that are not essential to the installation process.  
• Increase the separation between the equipment and receiver.  
• Connect the equipment into an outlet on a circuit different from that to which  
the receiver is connected.  
• Consult the dealer or an experienced radio/TV technician for help.  
This device complies with Part 15 of the FCC Rules.  
Unauthorized changes or modification to this system can void the user’s  
authority to operate this equipment.  
Operation is subject to the following two conditions: (1) This  
device may n ot cause harmful interference, and (2) this  
device must accept any interference received, including  
interference that may cause undesired operation.  
Complies with Canadian ICES-003 Class B.  
Conforme au Reglement Canadian NMB-003 classe B.  
 
8. Level meter  
1. Parts and their function  
The meter shows the audio level. If the needle moves into the red  
area above 0 dB, this indicates that digital clipping is occurring.  
Set the gain trim knob and the compressor sensitivity knob to prevent  
the needle from exceeding 0 dB.  
1
9. Gain reduction LED  
This LED will light when gain reduction is being applied by the  
compressor.  
2
3
10. Compressor sensitivity knob  
This specifies the audio level where the compressor begins to kick in.  
Turning the knob toward the right will increase the sensitivity, so that  
compression will be applied even at low levels.  
If you don’t want to apply compression, turn this knob all the way to  
the left.  
4
5
11. Link switch  
Press this switch in to link the two channels together for use with  
stereo sources. When linked, compression will be applied equally to  
both channels whenever either channel exceeds the compressor’s  
sensitivity threshold, preserving the stereo imaging.  
6
7
8
9
10  
11  
1. INPUT 9, INPUT 10 jacks  
These are balanced inputs that combine XLR jacks and 1/4” TRS  
phone jacks.  
Unbalanced phone plugs may also be connected to the 1/4” jacks.  
If you are using a condenser mic requiring phantom power, connect it  
to the XLR jack.  
2. Operation  
2-1. Assigning the input  
2: HOT  
1: GND  
XLR jack  
The inputs of the TPB-2 will show up as Input 9 and Input 10 on your  
D32XD/D16XD. The audio sources connected to the TPB-2’s inputs can  
be assigned to any of the mixer channels. (See D32XD/D16XD owner’s  
manual, p.42 “1. Inputting audio to the mixer”)  
3: COLD  
1/4" TRS phone jack  
Preamp input INPUT 9 is shown as the  
as the icon.  
icon, and INPUT10 is shown  
If you are using a guitar or the line output from an instrument,  
connect it to the TRS phone jack.  
Balanced phone plug  
Unbalanced phone plug  
•Access the MIXER, INPUT/OUTPUT/CH ASSIGN, “Ch Assign”  
tab page.  
GND  
GND HOT  
COLD HOT  
•Select “SOURCE” for the channel you want to assign, and use the  
buttons to select  
. You can also use the value dial or the  
+/– keys to make this selection. In the same way, select  
another channel.  
for  
2. Phantom power switch/LED  
This switch supplies +48V phantom power to condenser mics. The  
LED will light if +48V power is being supplied. Power is supplied  
only to the XLR jack. Turn this off (LED dark) if you’re using a  
dynamic mic.  
2-2. Adjusting the input level  
When you’ve finished making your connections, watch the TPB-2’s level  
meter while you use the gain trim knob to adjust the level. Set the trim  
knob so that the level meter needle does not exceed 0 dB when the  
loudest sound is input.  
If a condenser mic is connected or disconnected with the phantom power  
switch on, damage to your equipment may occur. For this reason, always  
turn the phantom power switch off before connecting or disconnecting a  
condenser mic.  
If the level meter goes beyond 0 dB even when the gain trim knob is  
turned all the way toward the left, press the PAD switch and then use  
the gain trim knob to adjust the level.  
3. Gain trim knob  
Normally if the needle goes beyond 0 dB, digital clipping has occurred, caus-  
ing distortion. You should set the level so that it does not exceed 0 dB.  
This knob adjusts the input gain. If the PAD switch is on (pushed in),  
the range is +14 – –34 dBu. If the PAD switch is off, the range is –12 –  
–60 dBu.  
2-3. Using the compressor  
urn the compressor sensitivity knob all the way to the left so that the  
compressor is not being applied.  
4. Hi-Z switch  
This switch changes the impedance level of the TRS phone jack to  
high impedance. It is on when the switch is pushed in. Turn this  
switch on when connecting a high output impedance device such as  
guitar or bass.  
Use the gain trim knob to raise the level so that the meter slightly  
exceeds 0 dB during the loudest input passages.  
Slowly turn the compressor sensitivity knob toward the right. The gain  
reduction LED will begin to light, indicating that the compressor is  
being applied.  
While watching the level meter, continue turning the compressor  
sensitivity knob until the level does not exceed 0 dB during the loudest  
input passages.  
5. PAD switch  
This switch lowers the level of the input signal by 26 dB. The pad is  
on when the switch is pushed in. When a line level input source is  
connected, turning the pad on will allow the gain trim knob to have a  
wider useful range of adjustment.  
If you want to apply a lot of compression to intentionally “squash” a  
vocal, use the gain trim knob to raise the input level further, and turn the  
compressor sensitivity knob toward the right to increase the compres-  
sion.  
6. Compressor mode switch  
This switch changes the compressor’s response speed. Use the Fast  
setting for short sounds such as drums or percussion, and the Slow  
setting (press the switch in) for more sustained sounds, such as  
vocals.  
By using the gain trim knob to raise the preamp level appropriately, you can  
saturate the vacuum tube, generating analog overtones to enrich the sound  
in conjunction with the compressor.  
7. Low cut switch  
This switch activates a 70 Hz –6 dB/oct low cut filter.  
Use this to reduce unwanted low-frequency content. The filter is on  
when the switch is pressed in.  
 
2-4. Using the link switch  
4. Specifications  
Turn on the link switch if you want to use stereo compression.  
When you’re recording a stereo source, and the level of one channel rises  
to the point where compression is being applied to only that one  
channel, then the relative volume of the other channel will increase,  
producing the impression that the stereo image has shifted to one side.  
In such cases, turning on the link switch will automatically apply  
compression to both channels at the same time, whenever either channel  
reaches the compressor’s threshold level.  
Input connectors:  
Input impedance:  
Nominal level:  
XLR-3-31 type (+48 V phantom power, switchable),  
1/4” TRS phone jack (balanced / unbalanced is Hi-Z)  
4 k (XLR-3-31), 10 k (TRS phone Jacks),  
1 M (TRS phone Jacks is Hi-Z)  
–60 dBu to –12 dBu @ TRIM=max. — min PAD OFF  
–34 dBu to +14 dBu @ TRIM=max. — min PAD ON  
So that the compressors for both channels will function in the same way,  
select the same compressor mode setting for both channels (either Fast  
or Slow). You should also set the compressor sensitivity knob to about  
the same setting for both channels.  
Maximum level:  
–48 dBu to 0 dBu @ TRIM=max. — min PAD OFF  
–22 dBu to +26 dBu @ TRIM=max. — min PAD ON  
Hi-Z  
– 48 dBu to 0 dBu @ TRIM=max. — min PAD OFF  
– 22 dBu to +12 dBu @ TRIM=max. — min PAD ON  
3. A note about the vacuum tubes  
Source impedance: ..................................................................................... 600  
Vacuum tubes used: ................................................................................. 12AX7  
Compression method: Vacuum tube compression using a photocoupler  
Principal specifications  
This device contains vacuum tubes. We recommend that you allow the  
tubes to warm up for about ten minutes after you turn on the power,  
before you begin running any audio signals through the TPB-2.  
If you begin using this device immediately after turning on the power,  
this may cause malfunctions and/or shorten the life of the vacuum  
tubes.  
Frequency response:  
In order to maximize reliability, avoid placing this device above or  
below heat-producing equipment such as a power amp.  
10 Hz - 20 kHz 1 dB @ fs 44.1 kHz, +4 dBu, 10 k load  
10 Hz - 22 kHz 1 dB @ fs 48 kHz, +4 dBu, 10 k load  
10 Hz - 44 kHz 1 dB @ fs 96 kHz, +4 dBu, 10 k load  
Do not attempt to remove, replace or change the tubes in the TPB-2. The  
tubes are not a user serviceable part.  
S/N: ............................................................................................. 93 dB (typical)  
Vacuum tubes generate heat. Do not allow your skin to contact the vacuum  
tube cover for an extended period of time. Doing so can cause low-tempera-  
ture burns.  
TPB-2 [ Tube Preamp Option ] for D32XD/D16XD  
9
INPUT  
PHANTOM  
+48V  
GAIN  
TRIM  
LEVEL METER  
GR  
HI-Z  
TUBE  
AD  
PAD HA  
PHASE  
LOWCUT  
COMP  
SENS  
LINK  
10  
INPUT  
PHANTOM  
+48V  
GAIN  
TRIM  
LEVEL METER  
GR  
HI-Z  
TUBE  
AD  
PAD HA  
PHASE  
LOWCUT  
COMP  
SENS  
 

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