AMC X7i User guide

H.O.M.E. AUTOMATION SERIES
X7iStereo Receiver
POWER
PHONES AB
SPEAKER
FM AM CD TAPE PHONO DIRECT
VOLUME
iPod
AUX(iPod)
MEMORY MODE TONE BALANCE
TUNE PRESET
IA
AMC X7i
STEREO RECEIVER
RC-S2

FEATURES OF THE AMC MODEL X7i
FCC INFORMATION
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The AMC model X7i was designed to meet professional quality performance
standard and to provide superior value.
Selected grade components are utilized throughout the circuit design with
special emphasis on components within the audio path to assure stable,
consistent performance.
Advanced power supply design incorporates separate windings for the
digital, analog and servo circuits to prevent interference and preserve sonic
performance.
EIA calibrated audio outputs ensure proper match with preamplifiers and
receivers.
System remote control handset (RC-S2) control both X7i and AMC CD
Player XCDi.
Switched AC outlet
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 de-
signed to provide reasonable protection against harmful interference in a resi-
dential installation. This equipment generates, uses and can radiate radio
frequency energy and, if not installed and used in accordance with the instruc-
tions, 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 recep-
tion, 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.
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.
Caution : Any changes or modifications in construction of this device
which are not expressly approved by the party responsible for compliance
could void the user's authority to operate the equipment.
3

Stereo Receiver X7i
INPUT OUTPUT INPUT
CD TAPE AUX
TO iPod
CONNECTOR
ON
FRONT PANEL
PHONO
GND
RR
R
LL
L
FM 75W
G
ANTENNA
AM
A
B
A
B
RL
SPEAKERS
IMPEDANCE: A,B - 8 MIN
A+B-16 MIN
W
W
230V 50Hz 1.5A
SWITCHED 0.5A MAX 115W
230V 50Hz
911 12
178
410
56
23
1. FM ANTENNA
2. AM ANTENNA
3. GROUND
4. PHONO INPUT
5. CD INPUT
6. TAPE INPUT/OUTPUT
7. AUX INPUT
8. iPod INPUT
9. SPEAKER OUTPUT A/B
10. SWITCHED AC OUTLET
11. UNSWITCHED AC OUTLET
(120V VERSION ONLY)
12. AC RECEPTACLE
REAR PANEL CONNECTIONS/FRONT PANEL CONTROLS
REAR PANEL
4

5
1.FM ANTENNA
2.AM ANTENNA
3.GROUND
4.PHONO INPUT
5.CD INPUT
6.TAPE INPUT/OUTPUT
7.AUX INPUT
8.iPod INPUT
9.SPEAKER OUTPUT A/B
10. SWITCHED AC OUTLET (120V
only)
11.UNSWITCHED AC OUTLET
Connect FM in door antenna wire.
Align FM indoor antenna position to
have the best reception of FM
stations. FM outdoor antenna can
improve the reception further.
Connect AM loop antenna and place
antenna as far as possible from the
receiver then align the direction of
loop antenna to have the best
reception.
The separate turnable ground lead
should be connected firmy to this
GROUND terminal to minimize the
hum level.
This input is designed for moving
magnet (MM) cartridge.
To minimize hum the turntable leads
should be kept away from the mains
wiring.
Note: A Phono MC amplifier will be
required for the turntable with MC
cartridge.
The CD input is suitable for use with
any CD player. Connect your CD
player to the sockets marked"CD".
This input is suitable for use with most
cassette or video recorders.
Connect the "record" leads of your
tape recorder to "TAPE OUT" on the
X7i rear panel.
Connect the "playback" leads of your
tape recorder to "TAPE IN" on X7i rear
panel.
The AUX (auxiliary) input can be used
for any source with line output level.
The shorting U-link must be plugged
off for using the AUX input.
A shorting U-link is plugged in AUX
and "To iPod CONNECTOR ON
FRONT PANEL" inputs for using iPod
INPUT jack on front panel.
This input is connected to "iPod
INPUT" on front panel. A shorting U-
link must be plugged in AUX and "To
iPod CONNECTOR ON FRONT
PANEL" inputs for using iPod INPUT
jack on front panel.
The SWITCHED AC OUTLET supply
AC mains at maximum power 120W
(1A 120V) to other equipment such as
AMC XCDi when X7i is switched on.
Don't connect any power consumption
over 120W equipment to SWITCHED
AC OUTLET to prevent any dangerous
may cause by over power.
The UNSWITCHED AC OUTLET
supply AC mains to other equipment
such as AMC XCDi when X7i is
connected to wall AC outlet.
The X7i is equipped with 2 pairs of
pluggable Terminal Blocks allow quick
connections of the internal amplifiers
to two stereo pairs of speakers. They
accept wire sizes for
14 to 28 AWG. Be sure to connect
speaker wires firmly and correctly
according to the channel (left and
right) and the polarity (+ and -).
Do not short-circuit the + and - speaker
wires which may damage the internal
power amplifier.
SPEAKER IMPEDANCE:8ohmone
pair
SPEAKER IMPEDANCE : 16 ohm two
pairs

The maximum power is 120W (1A 120V
60Hz unit) and 115W (0.5A 230V 50Hz
unit).
Don't connect any power consumption
over specified power equipment to
UNSWITCHED AC OUTLET to prevent
any dangerous may cause by over
power.
The AC RECEPTACLE is for you to
plug in with power cord attached in the
packing.
12.AC RECEPTACLE
6

MEMORY MODE TONE BALANCE
TUNE PRESET
FRONT PANEL
FRONT PANELCONTROL
123 45
67
89
10
11
12 13 14
1. POWER ON/STANDBY
2.PHONES
3.SPEAKER A/B
4.INPUT SELECTOR
When X7i is connected to AC manis,
the STANDBY indicator LED will light
up. Depressing the POWER
ON/STANDBY switch turns on the X7i
receiver. LED light off.
Speaker selector switches allow you
to switch speaker A/B ON or OFF
separately.
These switches allow you to select the
input sources.
The headphone socket will accept any
headphones fitted with a standard
1/4"(6.35mm) stereo jack plug. When
Headphones are in use, both of
SPEAKER A/B shall be switched off.
1. POWER ON/STANDBY
2. PHONES
3. SPEAKER A/B
4. INPUT SELECTOR
5. TONE DIRECT
6. FM/AM MEMORY
7. MODE
8. TUNE/PRESET UP/DOWN
9. DISPLAY
10. TONE
11. BALANCE
12. TONE/BALANCE UP/DOWN
13. VOLUME CONTROL
14. IPod INPUT
7

5.TONE DIRECT
6.FM/AM MEMORY
7.MODE
8.TUNE PRESET UP/DOWN
9.DISPLAY
10.TONE
11.BALANCE
12.TONE/BALANCE UP/DOWN
13.VOLUME CONTROL
14.iPod INPUT
Memory store button allows you store
FM/AM station in 30 presets.
Tune radio frequency to desired
station then press MEMORY button,
"MEM" in display is flashing, press
12.TONE/BALANCE UP/DOWN to the
preset number you want to store the
station then press MEMORY button
again to confirm the preset number.
The radio frequency is stored in the
preset number you select.
This button selects TUNE PRESET
buttons in tuning mode or preset
mode. "PRESET" light up in display
when in preset mode.
Tuning up or down of tuning mode or
preset mode.
During tuning mode, press up or down
button for a while, X7i will search next
radio station automatically.
12.TONE/BALANCE
UP/DOWN).
Press TONE, if display shows "TON-
DIR" press 5. TONE DIRECT button to
switch tone direct off and tone effect
on.
12.TONE/BALANCE
UP/DOWN).
This button can switch tone effect on
or off.
"DIRECT" light up in display when
TONE DIRECT is switched on.
Showing input, tuner frequency,
volume level, tone level and other
operation information.
Character indicators:
"ST" - FM stereo
"TUNED" - Radio is tuned at station
"PRESET" - preset mode
"MEM" - memory mode
"DIRECT" - tone direct
Select "BASS" or "TREBLE" sound
effect to be adjusted by up/down
button (
Select relative levels of the left and
right channels to be adjusted by
up/down button
Adjusting Tone or Balance in 10.TONE
and 11.BALANCE.
The volume control adjusts the overall
loudness level of the sound. It has no
effect on the level of the signals fed to
the TAPE OUT jacks for tape
recording. The Volume control is
designed for accurate tracking of its
two channels, so that the stereo
balance will not shift noticeably as the
loudness of the sound is varied.
The iPod socket will accept standard
1/8"(3.5mm) stereo jack plug. When
iPod socket is in use, switch INPUT to
"AUX" and a shorting U-link must be
plugged in AUX and "To iPod
CONNECTOR ON FRONT PANEL"
inputs on rear panel.
8

8
RC-S2
12
3
4
6
7
3
4
5
8
9
An infrared (IR) system remote control is provided for convenience operation of the
XCDi and AMC Receiver X7i. The handset provides X7i control functions listed in
below.

1.ON
2.STANDBY
3.SOURCES
4.VOLUME +/-
5.FM
MODE
TUNE PRESET
STEREO
MEMORY
6.NUMERIC BUTTONS (0- 9)
NOTE:
FM
7.MUTE
8.Other buttons
When X7i in standby mode, press this
button to switch X7i into operation
mode.
When X7i in operation mode, press
this button to switch X7i into standby
mode.
The keys in the sources group allow
you to select the input sources
bewtten CD, FM/AM, TAPE, AUX
(iPod) and PHONO.
Control the sound level up or down.
AM
This button selects TUNE PRESET
buttons in tuning mode or preset
mode. "PRESET" light up in display
when in preset mode.
Tuning up or down of tuning mode or
preset mode.
During tuning mode, press up or down
button for a while, X7i will search next
radio station automatically.
MONO
Switch FM station into stereo or mono
mode.
Same function as panel "MEMORY"
button.
These0~9buttonsinitialis
AMC Receiver X7i codes.
Pressing "CD" in "SOURCES" group
oranykeyin"CD"group,0~9is
changed to XCDi codes and keep it
until any key of "SOURCES" group or
any key in " AM" group is pressed
then0~9ischanged back to initial
AMC Receiver X7i codes.
These numeric buttons allow directly
access of desired tuner preset. Upon
entry of the desired preset number,
the receiver tuner shifts to the radio
station stored in preset.
Pressing the "Mute" button will apply
full mute to the audio. This funcation
canbeusedasa"localoff"andwillnot
affect other rooms.
Buttons on the RC-S2 remote control
that are not mentiond above, are for
use on other AMC high end
Audio/Video products.
10

11
SPECIFICATIONS
Weltronics Corp. reserved the right to improve its products at any time. Specifications are
subject to change without notice.
AUDIO OUTPUT (Ref. 1KHz/0dB, unless otherwise stated):
n
n
n
n
AMPLIFIER SECTION
Power output,stereo mode,8 ,THD 0.08%,20Hz~20kHz................ 2X100W
Total harmonic distortion, 8 ,100W,20Hz~20kHz........................ 0.04%
Intermodulation distortion
60Hz:7kHz=4:1SMPTE,8 ,100W.................................... 0.02%
Input sensitivity,47k
Phono(MM)..................................................... 2.5mV
Line(CD,TAPE,AUX)..............................................200mV
Signal to noise ratio,IHF "A" weighted
Phono(MM)......................................................65dB
Line(CD,TAPE,AUX)............................................... 93dB
Line(CD,TAPE,AUX) 10Hz~95kHz................................... 3dB
Output level
TAPE/AUX OUT,2.2k ............................................ 200mV
Bass/Treble control, 100Hz/10 kHz................................... 10dB
FM TUNER SECTION
Tuning frequency range......................................87.5~108 MHz
Usable sensitivity, THD 3%,S/N 30dB..................................15dBf
50dB quieting sensitivity,mono/stereo............................25.2/45.2 dBf
Signal to noise raito,65dBf,
Mono/stereo................................................... 68/65dB
Total harmonic distortion,65dBf,1kHz,mono/stereo..................... 0.5/0.8%
Frequency response,14kHz~20kHz.................................... 3dB
Stereo separation,1kHz.............................................40dB
Capture ratio.......................................................4dB
IF rejection ratio...................................................80dB
AM TUNER SECTION
Tuning frequency range........................ 520~1710kHz or 522~1611kHz
Usable sensitivity...............................................800 V/m
Signal to noise ratio................................................40dB
Selectivity........................................................25dB
GENERAL:
Power supply....................................120V~60Hz or 230V~50Hz
Power consumption...............................................330W
Dimensions(WxHxD)..................................433.2x146.9x373 mm
Weight (Net)................................................9kg(19.8 lbs)
Shipping weight (3pieces)....................................34kg(74.8lbs)
W
W
W
W
±
W
±
±
m
Frequency response
Phono(MM),RIAA,30Hz~20kHz...................................... 3dB
±

All the safety and operating instructions should be read
before the appliance is operated.
The safety and operating instructions should be retained for
future reference.
All warnings on the appliance and in the operating instructions
should be adhered to.
All operating and use instructions should be followed.
The appliance should not be used near water - for example,
near a bathtub, washbowl, kitchen sink, laundry tub, in a wet
basement, or near a swimming pool, etc.
The appliance should be used only with a cart or stand that is
recommended by the manufacturer.
An appliance and cart combination should be
moved with care. Quick stops, excessive force,
and uneven surfaces may cause the appliance
and cart combination to overturn.
This equipment is not designed for use mounted on a wall or a
ceiling.
The appliance should be situated so that its location or position
does not interfere with its proper ventilation. For example, the
appliance should not be situated on a bed, sofa, rug, or similar
surface that may block the ventilation openings, or placed in a
built-in installation, such as bookcase or cabinet that may
impede the flow of air through the ventilation openings.
The appliance should be situated away from heat sources
such as radiators, heat registers, stoves, or other appliances
(including amplifiers) that produce heat.
The appliance should be connected to a power supply only of
the type described in the operating instructions or as marked
on the appliance.
Power-supply cords should be routed so that they are not likely
to be walked on or pinched by items placed upon or against
them, paying particular attention to cords at plugs,
convenience receptacles, and the point where they exit from
the appliance
The appliance should be cleaned only as recommended by
the manufacturer.
The power cord of the appliance should be unplugged from the
outlet when left unused for a long period of time.
Care should be taken so that objects do not fall and liquids are
not spilled into the enclosure through openings.
The user should not attempt to service the appliance beyond
that described in the operating instructions. All other servicing
should be referred to qualified service personnel.
The appliance should be serviced by qualified service
personnel when:
a) The power-supply cord or the plug has been damaged; or
b) Objects have fallen, or liquid has been spilled into the
appliance; or
c) The appliance has been exposed to rain; or
d) The appliance does not appear to operate normally or
exhibits a marked change in performance; or
e) The appliance has been dropped, or the enclosure is
damaged.
(APPLIES TO TUNERAND RECEIVERS ONLY)
An outdoor antenna should be located away from power lines.
(APPLIES TO TUNERAND RECEIVERS ONLY)
If an outside antenna is connected to the receiver, be sure the
antenna system is grounded so as to provide some protection
against voltage surges and built up static charges.
Section 810 of the National Electrical Code,ANSI/NFPANo.
70-1984, provides information with respect to proper
grounding of the mast and supporting structure, grounding of
the lead-in wire to an antenna discharge unit, size of grounding
conductors, location of antenna-discharge unit, connection to
grounding electrodes, and requirements for the grounding
electrode. See Figure.
a) Use No. 10 AWG (5.3 mm ) copper, No. 8 AWG (8.4 mm )
aluminum, No. 17 AWG (1.0 mm ) copper-clad steel or
bronze wire, or larger, as a ground wire.
b) Secure antenna lead-in and ground wires to house with
stand-off insulators spaced from 4-6 feet (1.22-1.83 m)
apart.
c) Mount antenna discharge unit as close as possible to where
lead-in enters house.
d) Use jumper wire not smaller than No.6 AWG (13.3 mm )
copper, or the equivalent, when a separate antenna-
grounding electrode is used. See NEC Section 810-21(j).
1. READ INSTRUCTIONS
2. RETAIN INSTRUCTIONS
3. HEED WARNINGS
4. FOLLOW INSTRUCTIONS
5. WATER AND MOISTURE
6. CARTS AND STANDS
6A.
7. WALL OR CEILING MOUNTING
8. VENTILATION
9. HEAT
10. POWER SOURCES
11. POWER-CORD PROTECTION
12. CLEANING
13. NON USE PERIODS
14. OBJECT AND LIQUID ENTRY
15. SERVICING
16. DAMAGE REQUIRING SERVICE
17. POWER LINES
18. OUTDOOR ANTENNA GROUNDING
22
2
2
SAFETY INSTRUCTION
S3125A
PORTABLE CART WARNING
Antenna Lead
In Wire
Ground
Clamp
Electric
Service
Equipment
Power Service Grounding
Electrode System
(NEC Art 250 Part H)
Ground Clamps
Antenna
Discharge
Unit (NEC
Section 810.20)
Grounding Conductors
(NEC Section 810.21)
Antenna Grounding According to
the National Electrical Code
National Electrical Code
Available from Library, book
stores, or National Fire Protection
Association (Batterymarch Park,
Quincy. MA 02269).

WELTRONICS CORP.
LONDON/L.A.
AMC Web: http://www.amchome.com
PN: 21R-4218