Audiovox LCM640TV User manual

LCM640TV
OWNER’S MANUAL
Flip down LCD In-Vehicle
Television Entertainment
System
US Patent # D 413,856
Audiovox Corporation
150 Marcus Blvd.
Hauppauge, NY 11788
800-225-6074

Features
TFT Active Matrix Color LCD
4 Channel A/V Switching Built In (RCA Jacks Interrupt Source #3)
Audio Amplifier, Volume Control, and Headphone Jacks Built In
VCP, Game, DVD, A/V Input Jacks
Back lit Controls for Easy Night Time Operation
“Hide-Away” Screen When Not in Use
Built In TV Tuner
Infrared Remote Control Repeater Circuit (For wireless Video
Cassette and Tuner Functions)
Specifications
Video System: NTSC Analog Composite Video (1V P-P, 75Ω)
A/V Switch: 4 Source Channel
Power: 10-16 VDC, Negative Ground
AVX Audio Outputs: L&R Variable (800mV max, 8Ωload min.)
L&R Fixed (300mV typical, 600Ωload min.)
Current Consumption (Stand by Mode): 40mA
Current Consumption (On, No VCP): 1.4mA
VCP Stand-by Mode: 140mA
VCP On Mode: 800mA
Current Consumption (VCP On): 2.2A
Audio Noise Floor @ 30kHz BW: 48dB
THD+N @ 1kHz: A/V in 5%, TV in 3%
Cross Talk @ 1kHZ & 30kHz BW: 35dB
Maximum Input Level, Audio L&R: 500mV
Frequency Response, 20 Hz- 20kHz: -11dB ~ -2dB
Frequency Response, 40Hz- 16kHz: -4dB ~ 1.5dB
Channel Balance: 0dB
Volume Control: 0.3mV ~ 2.75V
Unit Weight: 1.5Kg
1

Front Panel Features
A) Power Button: (dimly lit when in stand-by mode)
B) Volume Up/Down: Controls volume to headphone jacks
C) Channel Up/Down: Controls tuner channels
D) Source Select: Each press of this button selects the next source
(1-3). Note that some sources may not produce an image,
depending upon whether components are connected to all
sources.
E) Auto-Program: Places the tuner into auto program mode. Auto
program will scan all channels available and store active channels
into memory for easy selection with the channel up/down buttons.
F) Source Indicator: The lighted LED indicates which source is
currently active.
G)Monitor Flip Down Release Button: Press this button to lower the
screen for viewing. Push the LCD panel up into place to lock in
the “up” position.
H) Rear Jack Panel: Two headphone jacks and AUX input connectors
for external A/V input (such as Camcorder or Game) source select
#3.
I) Dome Lights: Since many installations of this video system will
require mounting in the area of the vehicle’s dome lights, dome
lights have been incorporated into the video pod.
2

Antenna Information
The following are a few points to consider in regards to TV reception
in a mobile application.
Generally in a mobile application, the lower channels are the most
difficult to receive due to the size of the antenna required to receive
the signal.
When TV antennas are inside the vehicle, the TV signal can be
obstructed by the outside metal of the vehicle. This will diminish UHF
performance and may eliminate VHF reception altogether. VHF are
channels 2-13 and UHF are channels 14-69.
Depending on the location of the antenna and the direction of the
vehicle, some VHF signal may be received.
3

Remote Control Functionality
1) TV Power: Turns the unit on/off
2) TV/Video: Toggles between 3
available sources; Tuner/VCP/DVD
(VCP 2).
3) Mute: Mutes headphone audio
4) 0-9: Numbers for channel select
5) ∆CH: Channel Up
6) ∇CH: Channel Down
7) ∆Vol: Volume Up
8) ∇Vol: Volume Down
9) Skip/Search: Toggles On/Off. Skips
channels that are not auto
programmed
10) Erase/Write: Controls manual
adding/deleting auto programmed
channels. Press once to add, again
to delete
11) Auto memory: Programs stronger
stations into memory.
12) Picture Select: Toggles between
contrast, brightness, color, and tint
controls. Volume up and volume
down are used to make adjustments.
VCP Controls: If a VCP is connected to
source 2 or 3, these buttons will control
functionality of the VCP. The IR emitter
must be connected to the front of the
VCP.
13) VCP Power: Toggles VCP power
on/off
14) Play: Play tape in VCP
15) REW: Rewind tape in VCP
16) FFWD: Fast forward the tape in
the VCP.
17) Pause: This button will stop
current play, rewind the tape and
replay tape from the beginning.
18) Stop: Stop the tape in the VCP.
5

Notes
All systems have a built in Audio/Video input. When the unit is on
source #3 and another external source is plugged into the RCA
Audio/Video input jacks, source #3 is interrupted and the external
source (considered source #4) will be the current source.
For audio output, there are a few scenarios that may apply to your
system.
A) All systems have two headphone jacks built into the rear of
the Video pod. These are behind the TV when flipped down.
B) Remote headphone jacks may be added and located
throughout the vehicle.
C) Additional speakers and amplifiers may be added throughout
the vehicle.
Lights on the pod serve as dome lights. There is no switch on the
pod that turns these off and on. The lights are turned on when a door
is opened or the interior lights are turned on.
6

Troubleshooting
System Cause Possible Solution
Picture scrolls or is
fuzzy Antenna type or location Change antenna or try antenna in a
different location
Poor reception Vehicle is moving
Not receiving certain
channels Connections Vehicle may be out of TV signal range.
Check antenna
connections.
Check number of
antenna connections-
the more connections
there are, the greater
chance of signal loss,
reduce number of
connections if
possible.
Unit will not respond
to remote control Sensor is blocked
Batteries in remote
control are weak
Clear path for sensor
or clean sensor lens.
Replace batteries.
No power to unit Power connection
Fuse blown at fuse
panel
Check connections
Replace fuse
7

Rev. C Feb.00
P/N 8010838