Inter-m PAM-BTU User manual

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Operation
Manual
PAM-BTU PAM Bluetooth®USB MODULE

RISK OF ELECTRIC SHOCK
DO NOT OPEN
CAUTION
CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK.
DO NOT REMOVE COVER (OR BACK).
NO USER-SERVICEABLE PARTS INSIDE.
REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
WARNING
To prevent fire or shock hazard, do not expose the unit to rain or moisture.
This symbol is intended to alert the user to the presence of
uninsulated “dangerous voltage” within the product’s enclosure
that may be of sufficient magnitude to constitute a risk of elec-
tric shock to persons.
This symbol is intended to alert the user to the presence of im-
portant operation and maintenance (servicing) instructions in
the literature accompanying the appliance.
Caution: These servicing instructions are for use by qualified service person-
nel only. To reduce the risk of electric shock, do not any perform
any servicing other than that contained in the operating instructions
unless you are qualified to do so.
Attentions: Pour prévenir les chocs électriques ne pas utiliser cette fiche
polarisée avec un prolongateur, une prise de courant on une
autre sortie de courant, sauf si les lames peuvent étre insérées
à fond sans en laisser aucune partie à découvert.
Warning
*Do not install this equipment in a confined space such as a book case or
similar unit.
*The apparatus shall not be exposed to dripping or splashing and no objects
filled with liquids, such vases, shall be placed on the apparatus.
*Worded: “WARNING FOR YOUR PROTECTION PLEASE READ THE
FOLLOWING-WATER AND MOISTURE: Unit should not be used near
water(e.g. near a bathtub, washbowl, kitchen sink, laundry tub, in a wet
basement, or near a swimming pool, etc). Care should be taken so than
objects do not fall and liquids are not spilled into the enclosure through
openings.”
NOTE : This equipment has been tested and found to comply with the limits
for a Class A 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 com-
mercial environment. This equipment generates, uses, and can
radiate radio frequency energy and, if not installed and used in ac-
cordance with the instruction manual, may cause harmful interfer-
ence to radio communications. Operation of this equipment in a
residential area is likely to cause harmful interference in which
case the user will be required to correct the interference at his own
expense.
* It can be heated up if you use this product in closed box or ill-ventilated place.

Contents
Welcome .............................................................................4
Unpacking ...........................................................................4
Installation
Environment.........................................................................5
Important Safety Instructions ...............................................5
Features ..............................................................................7
Contents and Accessories ..................................................7
Part Names and Function ...................................................8
Method to Bluetooth®Module ...........................................10
Block Diagram...................................................................15
Specification......................................................................16
Service
Procedures ........................................................................17
Schematic ..........................................................................17
Parts List............................................................................17
Warranty ...............................................................................17

4
PAM-BTU(PAM Bluetooth®USB MODULE)
4
Unpacking
Please take a few minutes to read this manual to famil-
iarize yourself with important information regarding in-
stallation, product features, and operation.
As with most electronic devices, ORIGINAL PACKAG-
ING (OR EQUAL) IS REQUIRED in the unlikely event
that the product needs to be returned for servicing.
Welcome
A personal welcome to you from the management
and employees of Inter-M
All of the co-workers here at Inter-M are dedicated to
providing excellent products with inherently good
value, and we are delighted you have purchased
one of our products.
We sincerely trust this product will provide years
of satisfactory service, but if anything is not to your
complete satisfaction, we will endeavor to make
things right.
Welcome to Inter-M, and thank you for becoming
part of our worldwide extended family!

5
PAM-BTU(PAM Bluetooth®USB MODULE)
5
Installation
Environment
Never place this product in an environment which
could alter its performance or reduce its service life.
Such environments usually include high levels of heat,
dust, moisture, and vibration.
Important Safety Instructions
1. Read these instructions.
2. Keep these instructions.
3. Heed all warnings.
4. Follow all instructions.
5. Do not use this apparatus near water.
6. Clean only with dry cloth.
7. Do not block any ventilation openings. Install in accor-
dance with the manufacturer’s instructions.
8. Do not install near any heat sources such as radia-
tors, heat registers, stoves, or other apparatus (in-
cluding amplifiers) that produce heat.
9. Do not defeat the safety purpose of the polarized or
grounding-type plug. A polarized plug has two
blades with one wider than the other. A grounding
type plug has two blades and a third grounding
prong. The wide blade or the third prong are pro-
vided for your safety. If the provided plug does not
fit into your outlet, consult an electrician for replace-
ment of the obsolete outlet.
10. Protect the power cord from being walked on or
pinched particularly at plugs, convenience recep-
tacles, and the point where they exit from the ap-
paratus.
11. Only use attachments/accessories specified by
the manufacturer.
12. Use only with the cart, stand, tripod,
bracket, or table specified by the
manufacturer, or sold with the ap-
paratus. When a cart is used, use
caution when moving the cart/ap-
S3125A

6
PAM-BTU(PAM Bluetooth®USB MODULE)
6
paratus combination to avoid injury from tip-over.
13. Unplug this apparatus during lightning storms or
when unused for long periods of time.
14. Refer all servicing to qualified service personnel.
Servicing is required when the apparatus has been
damaged in any way, such as power-supply cord or
plug is damaged, liquid has been spilled or objects
have fallen into the apparatus, the apparatus has
been exposed to rain or moisture, does not operate
normally, or has been dropped.
- AVOID EXCESSIVE HEAT, HUMIDITY, DUST AND VI-
BRATION
Keep the unit away from locations where it is likely to
be exposed to high temperatures or humidity-such as
near radiators, stoves, etc. Also avoid locations which
are subject to excessive dust accumulation, or to vi-
bration that could cause mechanical damage.
- AVOID PHYSICAL SHOCKS
Strong physical shocks to the unit may cause damage.
Handle the unit with care.
- DO NOT OPEN THE CASE OR ATTEMPT REPAIRS
OR MODIFICATIONS YOURSELF
This product contains no user-serviceable parts. Refer
all maintenance to qualified Inter-M service personnel.
Opening the case and/or tampering with internal cir-
cuitry voids the warranty.
- ALWAYS POWER OFF BEFORE MAKING CONNECTIONS
Always turn the AC mains OFF before connecting or
disconnecting cables. This is important to prevent dam-
age to the unit itself as well as other connected equip-
ment.
- HANDLE CABLES CAREFULLY
Always plug and unplug cables (including the AC
mains power cord) by gripping the connector, not the
cord.
- CLEAN WITH A SOFT DRY CLOTH
Never use solvents such as benzine or paint thinner to
clean the unit. Wipe clean with a soft, dry cloth.

7
PAM-BTU(PAM Bluetooth®USB MODULE)
7
Features
■
■MODULE FOR MOUNTING PAM SERIES
This is a module for mounting and is used with connecting to
PAM-SERIES.
■
■RECEIVING AUDIO SOUND THROUGH Bluetooth®(Blue-
tooth®V5.0)
You can receive and play Bluetooth®audio sound.
■
■USB DRIVE AUDIO PLAY FUNCTION
Desired sound source of the USB MEMORY can be output.
※Formats supports only: MP3, WAV, WMA
■
■SYSTEM INFORMATION VIA OLED DISPLAY
The system information can be checked through the OLED
display which is easy to operate.
■
■SLIDING MOUNTING METHOD (PAM-312/324/336/348)
It is convenient to install in PAM-Series by applying sliding
mounting method.
※The PAM-510/520/120A/340A/480A systems are not
sliding mounting types. Open the top cover for this
model and connect it with the inner connector.
※It cannot be used in No.1 bay of PAM-120A.
1. PAM-BTU x 1EA
2. Screws for PAM-Series x 4EA
3. Power and Audio Cable x 1EA
4. Operation Manual x 1EA
Contents and Accessories

8
PAM-BTU(PAM Bluetooth®USB MODULE)
8
1342
7
658
1. USB TERMINAL
This is a terminal to mount USB memory, which can play audio
file from USB.
2. OLED DISPLAY
This is a window to display status information of PAM-BTU.
The USB play information, Bluetooth®connecting status, are
displayed.
3. PAIRING BUTTON, STATUS LED
This is a button to turn ON / OFF the paring function. The Blue-
tooth®operation is displayed through the LED indicator on the
right side of the button.
※For more information, refer to the How to Use Bluetooth®
Module on page 10.
4. Bluetooth®/USB SELECTION BUTTON
This is a button to select Bluetooth®or USB mode. In Blue-
tooth®mode, BT is displayed at the upper left in USB mode,
USB is displayed at the upper left.
5. PLAY/PAUSE, STOP, BACK SKIP, FORWARD SKIP BUTTON
-►||: This is a button used for play and pause of audio files
and the player temporarily stops if pressing this button dur-
ing play.
Part Names and Function

9
PAM-BTU(PAM Bluetooth®USB MODULE)
9
-■: This button is function to stop during play of audio.
- |◀◀ : Press the BACK SKIP button during playback to play
the sound source file from the beginning. (However, if you
press the button within 1 second, the previous sound source
file will be played.)
-▶▶| : Press the FORWARD SKIP button to go to the next
sound source file.
6. GROUP BUTTON
This is a button to activate GROUP mode. Press the GROUP
button to display the GROUP mode in the upper area of the
OLED DISPLAY.
In GROUP mode, press the FORWARD SKIP or BACK SKIP
button to go to the next or previous folder.
※Available only in USB mode.
7. REPEAT BUTTON
This is a button to change the REPEAT status.
If powered on, the REPEAT ALL status is reset when the
sound source file is changed.
The status is changed in the order of REPEAT ALL →RE-
PEAT ONE →REPEAT FLD →RANDOM ALL.
-REPEAT ALL: Repeats all the folders and tracks in order.
-REPEAT ONE: Repeats the currently playing sound source
file.
-REPEAT FLD: Repeats the sound source files in the cur-
rently playing folder in order.
-RANDOM ALL: Plays all the folders and tracks randomly.
8. VOLUME BUTTON
This is a button to adjust the output volume of the sound
source file.
-You can adjust the output volume from 100 (maximum) to 0
(minimum) by each level.
-Each time you press the VOLUME button, the volume is in-
creased or decreased step by step.
-Press and hold the VOLUME button to increase or decrease
the volume continuously.

10
PAM-BTU(PAM Bluetooth®USB MODULE)
Method to Bluetooth®Module
1. How to install the module
1) Turn off the PAM-Series amplifier before installation.
2) Connect the PAM-BTU module to the terminal of the PAM-Se-
ries main body using the enclosed 5-pin connector. Then, slide
the module into the slot until it is fully mounted. Terminal infor-
mation by product is as follows:
※PAM-312/324 does not require an enclosed connector. Slide
the module all the way into the slot to connect the internal
connector to the module.
- PAM-120A
※It cannot be used in No.1 bay of PAM-120A.
10
PAM-120A
HEAT SINK
MAIN B’D
PAM-BTU
AN7
OPT PT
CP701

11
PAM-BTU(PAM Bluetooth®USB MODULE)
11
- PAM-340A/480A
- PAM-510/520
PAM-340A/480A
HEAT SINK
MAIN B’D
PAM-BTU
CN10
CN7
OPT PT
CP701
PAM-510/520
HEAT SINK
MAIN B’D
PAM-BTU
CN_CD
OPT PT
CP701

12
PAM-BTU(PAM Bluetooth®USB MODULE)
3) Fix the module by using the enclosed screw and turn
on the PAM-Series main body.
4) Turn on the device and check whether relevant module
information is provided on the front OLED DISPLAY.
5) Adjust the volume appropriately and check whether
the sound source is output.
2. How to Use Bluetooth®Module
1) Standby Screen
-Prepare for the Bluetooth®device to connect to
the PAM-BTU.
※Before using, check whether the device sup-
ports the Bluetooth®function.
-Before connecting to the Bluetooth®device, press
the Bluetooth® Selection button to display BT
Standby on its OLED display.
2) PAIRING
-Press the PARING button in the PAM-BTU to
switch into Pairing mode.
- Once in Pairing mode, you can search for the
PAM-BTU on the Bluetooth®device to connect to.
The pairing LED on the left side of the button
flashes and BT Scan… is displayed on the OLED
display.
※Press the Pairing button again to switch into BT
Standby mode.

13
PAM-BTU(PAM Bluetooth®USB MODULE)
※The Pairing mode lasts for 2 minutes and 30
seconds, and then it switches back to BT
Standby mode.
-Check whether the PAM-BTU is detected in the
Bluetooth®device to connect. When you select a
device to connect to, the pairing is complete.
※PAM-BTU_XXXXXXXXXXXX is detected and
the name of module cab be checked on the bot-
tom right of the OLED DISPLAY of the PAM-
BTU. (“X” is the Bluetooth® Address and each
module is assigned a proprietary number.)
3) Connecting and Auto-connecting
-When pairing is complete, it will connect automat-
ically and output audio. The pairing LED stays on
and BT Connected appears on the OLED DIS-
PLAY.

14
PAM-BTU(PAM Bluetooth®USB MODULE)
-Auto-Connect Function: The Bluetooth® device
that has being connected once is automatically
connected without the pairing process by turning
the PAM-BTU's power ON / OFF or activating /
deactivating the Bluetooth®mode of the Blue-
tooth®device to be connected. (The last con-
nected Bluetooth®device is automatically
connected.)
※Since the music can be played back immedi-
ately after connection, adjust the volume of the
PAM-BTU appropriately in advance.
※The available distance between devices is 10
m. (If you go out of range, the connection is au-
tomatically released.)
※Bluetooth®connection compatibility may vary
depending on the software version of the
source device.

15
PAM-BTU(PAM Bluetooth®USB MODULE)
+12VD
REG
+3V3D
REG
OLED IO Extender
SPI/Ctrl IO
Front key
EEPROM
Elec. Volume
USB Audio Decoder Bluetooth Module
I2C UA RT
I2C
+24VD
+24VA
+24VD
+24VA
20p connector for new PAM series
5p connector for old PAM series
LIVE LED
MCU
GPO
Status LED
I2C
I2C
CN700 CP701
REG
+5VD
+24VA
+3V3A
REGREG
+5VA
+24VA REG
+12VA
+24VA
+24VD
Block Diagram

16
PAM-BTU(PAM Bluetooth®USB MODULE)
Specification
* Design and specification are subject to be changed for the improvement
of product quality without pre notice.
PAM-BTU
Bluetooth®Specifications
Version v5.0
Maximum Receiving
Distance 10m(Class2)
Frequency Band 2.4GHz ISM Band
Profile A2DP v1.2/AVRCP v1.5
USB Specifications
Maximum Memory
Support Capacity 32Gbyte
Supported File Format FAT16, FAT32
Supported Audio File
Format MP3, WAV, WMA
General Specifications
Audio Output Level 0dBV±3dB
S/N More than 73dB
THD Less than 0.2%
Operating Temperature -10˚C~+40˚C
Operating Power DC 24V
Weight(Set) 0.46kg/1.01lb
Dimensions(Set)
184(W) x 55(H) x 182(D)mm
7.24(W) x 2.16(H) x 7.16(D)in

17
PAM-BTU(PAM Bluetooth®USB MODULE)
Service
Procedures
Ensure the problem is not related to operator error, or ex-
ternal system devices, Once it is certain that the problem
is related to the product contact your warranty provider as
described in the warranty section of this manual.
Schematic
A Schematic is available by contacting your warranty
provider.
Parts List
A Parts List is available by contacting your warranty
provider.
Warranty
Warranty terms and conditions vary by country and may not
be the same for all products. Terms and conditions of war-
ranty for a given product may be determined first by locating
the appropriate country which the product was purchased
in, then by locating the product type.
To obtain specific warranty information and available serv-
ice locations contact Inter-M directly or the authorized Inter-
M Distributor for your specific country or region.

NOTE

NOTE

MADE IN KOREA
July 2021 154673
Inter-M, Ltd. (Korea) began operations in 1983.
Since then, Inter-M has grown to become one of the largest manufacturers
of professional audio and commercial sound electronics equipment in the world.
Inter-M has gained worldwide recognition for its own branded products,
as well as private label manufacturing of electronics sold under other names (OEM).
The company is no longer just a Korean company, but rather a global company
that is truly international in scope, with factories and offices in Korea and China,
and sales and marketing operations located in Japan, Europe, and the U.S.A.
With more than 850 employees around the globe,
Inter-M is well-poised for further growth and expansion.
INTER-M AMERICAS, INC.
5666 CORPORATE AVE. CYPRESS, CA 90630
TEL : [phone], FAX : [phone]
HOME PAGE : HTTP://WWW.INTER-M.NET, E-MAIL : [email protected]
INTER-M Corporation
SEOUL OFFICE : 719, DOBONG-RO, DOBONG-GU, SEOUL, KOREA
TEL : [phone]~8, FAX : [phone]
Home Page : http://www.inter-m.com, E-mail : [email protected]