Kenwood Two Way Radio VC H1 User Manual

INSTRUCTION MANUAL  
INTERACTIVE VISUAL COMMUNICATOR  
VC-H1  
KENWOOD CORPORATION  
© B62-0974-10 (K)  
09 08 07 06 05 04 03 02 01  
 
THANK YOU!  
SUPPLIED ACCESSORIES  
Thank you very much for purchasing this Interactive  
Visual Communicator. It was designed for plug-and-play  
color slow-scan television (SSTV). This portable unit  
includes a slow-scan converter, CCD camera, and LCD  
monitor. You can enjoy SSTV anywhere just by making  
a single connection with your amateur radio.  
Check that everything listed below is included in your  
package.  
Accessory  
Connection cable  
AC adapter  
Part Number  
E30-3301-XX  
W08-0559-XX  
J69-0344-XX  
W01-0439-XX  
Quantity  
1
1
1
1
1
1
KENWOOD believes that this product will provide more  
fun in your outdoor ham activities.  
Strap  
Cloth  
FEATURES  
Warranty card  
Instruction manual  
This Communicator has the following main features:  
B62-0974-XX  
Includes all equipment required for SSTV;  
a slow-scan converter, CCD color camera, and LCD  
color monitor.  
Can store up to 10 images in memory. You may  
select the best image to send, from those images.  
Functions as a speaker microphone of a handy  
transceiver.  
Compatible with 8 popular SSTV modes besides the  
newly developed Fast FM mode.  
Equipped with a video input terminal to take in  
images from a digital camera or 8 mm VTR.  
 
i
CONTENTS  
PRECAUTIONS......................................................... 1  
CONVENTIONS FOLLOWED IN THIS MANUAL....... 1  
GETTING ACQUAINTED  
BATTERY SAVER.................................................... 11  
SUPERIMPOSING A CALL SIGN ............................ 12  
AUTO TRANSMIT ................................................... 13  
AF MUTING ............................................................. 13  
DISPLAY CONTRAST CHANGE ............................. 13  
2
ORIENTATION........................................................... 2  
CONNECTOR DESCRIPTIONS ................................ 2  
PREPARATION  
3
MAINTENANCE  
14  
INSTALLING ALKALINE BATTERIES ........................ 3  
ATTACHING THE STRAP .......................................... 4  
CONNECTING THE AC ADAPTER ........................... 4  
CONNECTION WITH A HANDY TRANSCEIVER ...... 5  
REMOVING/ REINSTALLING THE CAMERA UNIT ... 5  
GENERAL INFORMATION ...................................... 14  
SERVICE................................................................. 14  
SERVICE NOTE ...................................................... 14  
CLEANING .............................................................. 14  
TROUBLESHOOTING ............................................. 15  
QUICK USE  
6
7
APPENDIX  
16  
OPERATING BASICS  
VC-H1 DATA PORT PIN FUNCTIONS .................... 16  
SWITCHING POWER ON/OFF ................................. 7  
SELECTING A SSTV MODE...................................... 7  
CAPTURING IMAGES ............................................... 8  
TRANSMITTING IMAGES ......................................... 9  
RECEIVING IMAGES .............................................. 10  
CONNECTION DIAGRAM WITH TS-570  
OR TS-870 .............................................................. 16  
COMPUTER CONTROL.......................................... 17  
SPECIFICATIONS  
19  
AUXILIARY FUNCTIONS  
11  
MEMORY PROTECTION ........................................ 11  
MEMORY RESET.................................................... 11  
 
ii  
PRECAUTIONS  
CONVENTIONS FOLLOWED IN THIS MANUAL  
Please observe the following precautions to prevent fire,  
personal injury, or product damage:  
The writing conventions described below have been  
followed to simplify instructions and avoid unnecessary  
repetition.  
Never open this product. You will get an electric  
shock if you touch the circuit on which high voltage is  
applied.  
Instruction  
Press [KEY].  
What to Do  
Press and release KEY.  
Do not install batteries in a hazardous environment  
where sparks could cause an explosion.  
Press and hold KEY1, then  
press KEY2.  
Press [KEY1]+[KEY2].  
Never discard old batteries in fire because extremely  
high temperatures can cause batteries to explode.  
With VC-H1 power OFF,  
press and hold KEY, then  
slide the PWR switch upward.  
Press  
[KEY]+ POWER ON.  
Do not modify this product unless instructed by  
KENWOOD documentation.  
With VC-H1 power OFF,  
Press [KEY1]+[KEY2]+ press and hold KEY1 and  
Do not apply excessive force to the monitor display.  
POWER ON.  
KEY2, then slide the PWR  
switch upward.  
Do not expose this product to long periods of direct  
sunlight nor place it close to heating appliances.  
Do not place this product in excessively dusty areas,  
humid areas, wet areas, nor on unstable surfaces.  
Note: Pressing the same key again immediately after pressing [KEY]+  
POWER ON causes the setting to be changed back.  
If an abnormal odor or smoke is detected coming  
from this product, turn OFF the power immediately  
and remove the batteries from the product. When  
using AC power, also remove the AC adapter from an  
AC outlet. Contact your authorized KENWOOD  
dealer, customer service, or service station.  
 
1
GETTING ACQUAINTED  
ORIENTATION  
CONNECTOR DESCRIPTIONS  
q Video input jack  
This jack accepts a 3.5 mm (1/8") diameter,  
3-conductor plug. You may connect a digital camera  
or 8 mm VTR to take in images (acceptable video  
signals: 75 , 1 VP-P (140 IRE) ±15%, NTSC).  
CCD  
camera  
1 When connecting a device  
other than the provided  
camera unit, using this  
conductor could cause the  
device to be damaged.  
No Connection 1  
Video  
signal  
COM jack  
Ground  
LCD  
monitor  
Video  
output jack  
w COM jack  
Connect a personal computer in which a dedicated  
program has been installed. For details, contact your  
authorized KENWOOD dealer, customer service, or  
service center.  
DC IN jack  
e Video output jack  
Speaker/  
microphone  
Connect an external monitor, if you prefer. This jack  
accepts a 2.5 mm (1/10") diameter, 2-conductor plug.  
Ground Video  
signal  
r DC IN jack  
DATA port  
Video input jack  
Connect the provided AC adapter to use power  
supplied from an AC outlet.  
t DATA port  
Connect your transceiver. See page 5.  
 
2
PREPARATION  
3 Align the three tabs on the battery cover, then slide  
INSTALLING ALKALINE BATTERIES  
WARNING!  
the cover inward until the center tab clicks.  
DO NOT INSTALL THE BATTERIES IN A HAZARDOUS  
ENVIRONMENT WHERE SPARKS COULD CAUSE AN  
EXPLOSION.  
Center tab  
NEVER DISCARD OLD BATTERIES IN FIRE BECAUSE  
EXTREMELY HIGH TEMPERATURES CAN CAUSE BATTERIES  
TO EXPLODE.  
1 To remove the battery cover, slide the cover outward  
while slightly pushing on the grooves on the cover.  
Note:  
It is strongly recommended to use high quality alkaline batteries  
rather than manganese batteries, to enjoy longer periods of battery  
life. Do not use commercially available NiCd batteries.  
Grooves  
If you will not use the VC-H1 for a long period, remove the batteries  
from the VC-H1.  
Do not use different kinds of batteries together.  
When the battery voltage is low, replace all four old batteries with  
new ones.  
The approximate lives of alkaline batteries depending on  
the operation status are shown below:  
2 Insert four AA (LR6) alkaline batteries.  
Be sure to match the battery polarities with those  
marked on the VC-H1.  
Camera ON  
50 minutes  
2 hours  
Monitor ON (memory recalled)  
Monitor OFF  
6 hours  
When the batteries become almost empty while the  
TX/RX indicator is green, the indicator starts blinking.  
Replace the batteries at that time. This function,  
however, does not operate while Fast FM mode is  
currently selected.  
 
3
ATTACHING THE STRAP  
CONNECTING THE AC ADAPTER  
If you want, attach the provided strap to the bottom of  
the VC-H1. The strap can be used to hang the VC-H1  
around your neck.  
Use the provided AC adapter to connect the VC-H1 to an  
AC outlet if you want to use AC power.  
WARNING!  
USING AN AC ADAPTER OTHER THAN THE PROVIDED  
ADAPTER CAN CAUSE FIRE OR PRODUCT DAMAGE.  
DO NOT USE AN EXTENSION CABLE UNLESS ABSOLUTELY  
NECESSARY. IMPROPER EXTENSION CABLES CAN CAUSE  
FIRE OR ELECTRIC SHOCK.  
Lock  
Unlock  
Note: The provided AC adapter does not function as a battery charger.  
 
4
CONNECTION WITH A HANDY TRANSCEIVER  
REMOVING/ REINSTALLING THE CAMERA UNIT  
Note: Turn OFF the power to the VC-H1 before removing or reinstalling  
the camera unit.  
Use the provided cable to connect the VC-H1 with a  
handy transceiver.  
To remove the camera unit, first turn it so that it crosses  
at right angles with the main unit.  
Note: The VC-H1 functions as a speaker microphone only when  
connected with a handy transceiver. You need not switch ON the VC-H1.  
1 Confirm that the power switches of both the VC-H1  
and transceiver are OFF.  
2 Connect the appropriate end of the provided cable to  
the DATA port of the VC-H1.  
To remove the cable from the VC-H1, pull the cable  
connector downward while pushing its tabs from both  
sides.  
or  
To remove  
3 Connect the other end of the cable to the speaker/  
microphone jacks on your handy transceiver.  
To reinstall the camera unit, first position the port on the  
camera unit over the port on the main unit so that the  
two units cross at right angles.  
Note: The compatible handy transceivers are TH-26, TH-46, TH-27,  
TH-47, TH-28, TH-48, TH-22, TH-42, TH-77, TH-78, TH-79, and TH-G71.  
An optional PG-4T cable is available for connecting with a TM-255,  
TM-455, TM-733, TM-V7, or TM-G707 transceiver. To make a cable for  
connecting with a TS-570 or TS-870 transceiver, you may obtain an  
optional connector kit (E59-0407-08) which mates with the VC-H1 DATA  
port. For the above options, contact your authorized KENWOOD dealer,  
customer service, or service center.  
Note: The camera unit has a structure that allows the plug assembly to  
be slightly moved. This is aimed at absorbing stress to be caused when  
the camera unit is turned.  
 
5
QUICK USE  
If you have a handy transceiver, the steps given here will allow you to try SSTV with  
your friend right away.  
Note: To correctly receive or transmit images, you and your friend have to select the same SSTV mode. If you  
prefer using a mode other than Robot (color) 36 which is the factory default, see “SELECTING A SSTV MODE”  
{page 7} and “RECEIVING IMAGES” {page 10}.  
N
O
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T
A
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M
M
O
To receive and store an image in memory:  
C
L
A
U
S
I
V
E
V
I
T
C
A
R
E
T
N
I
When an image signal is received,  
the image is displayed on the monitor.  
The TX/RX indicator lights orange  
while an image is being received.  
Confirm that the VC-H1 has  
been correctly connected with  
the transceiver {page 5}.  
X
R
/
X
T
R
O
T
A
E
M
C
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V
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T
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If the TX/RX indicator is green even  
when the monitor is deactivated by the  
Battery Saver {page 11}, the VC-H1  
can receive an image.  
To store the received image in  
memory, press [MR].  
S
PTT  
On the transceiver:  
Turn ON the power to the  
transceiver.  
Select the same frequency as  
the other party.  
D
L
O
H
R
M
M
F X  
T
S
A
F
R
O
N
To transmit an image:  
X
T
Press [S] to activate both the camera  
and LCD monitor.  
On the VC-H1:  
The TX/RX indicator goes out.  
While looking at the LCD monitor,  
turn and focus the camera onto an  
object.  
Press [TX] to capture and transmit  
the image.  
Slide the PWR switch upward  
to turn the power ON.  
The TX/RX indicator lights  
green.  
You need not press the PTT switch.  
The TX/RX indicator lights red during  
transmission.  
A horizontal line appears and slowly  
moves downward to show the progress  
of transmission.  
 
6
OPERATING BASICS  
Press [TX]+ POWER ON to switch the  
mode.  
SWITCHING POWER ON/OFF  
1 Slide the PWR switch upward to turn  
The FAST FM indicator shows which  
mode is selected.  
the power ON.  
The TX/RX indicator lights green.  
Lights red: Fast FM  
Goes out: Robot (color) 36  
The VC-H1 is also compatible with the  
following modes. See “RECEIVING  
IMAGES” {page 10} and “COMPUTER  
CONTROL” {page 17}.  
2 To turn the power OFF, slide the PWR  
switch downward.  
• Robot (color) 72  
• AVT 94  
• Scottie S2  
• Martin M2  
• AVT 90  
• Scottie S1  
• Martin M1  
SELECTING A SSTV MODE  
To correctly transmit or receive images,  
you and the other party have to select  
the same SSTV mode. So first consult  
with your party about the mode to be  
used. You can select either Robot  
(color) 36 or Fast FM; the factory default  
is Robot (color) 36.  
Note: The Fast FM mode is available only when  
using a TM-255, TM-455, TM-733, TM-V7, or  
TM-G707 transceiver; 9600 bps must be selected on  
the transceiver as the data transfer rate. For details,  
contact your authorized KENWOOD dealer,  
customer service, or service center. In Fast FM  
mode, the VC-H1 does not output audio from the  
speaker while receiving an image, and does not  
function as a speaker microphone.  
 
7
6 Repeat step 2 to 5 to capture and  
store a maximum of 10 desired  
images.  
CAPTURING IMAGES  
The VC-H1 has 10 memory channels to  
store captured images.  
• When all channels are full, the  
currently selected channel is  
overwritten with a newly captured  
image.  
1 Slide the PWR switch upward to turn  
the power ON.  
The TX/RX indicator lights green.  
7 To confirm the stored images, press  
[MR].  
• The currently selected channel number  
appears at the top right of the monitor.  
2 Press [S] to activate both the camera  
and LCD monitor.  
The TX/RX indicator goes out.  
• Each press of [MR] increments the  
3 While looking at the LCD monitor,  
turn and focus the camera onto an  
object.  
channel number.  
Note:  
While capturing images, the VC-H1 does not  
receive images sent from other parties.  
4 Press [S] again to capture the image.  
If no operation is performed for approximately  
30 seconds with Battery Saver ON {page 11}, the  
camera and monitor are deactivated; the default  
is ON.  
When capturing is completed, the  
camera is deactivated and the TX/RX  
indicator lights green again.  
Pressing [S] again immediately after activating  
the camera and monitor may cause the captured  
image to be distorted; the camera is not yet  
ready for image capture.  
5 Press [MR] to store the captured  
image in a memory channel.  
The VC-H1 does not allow you to specify an  
individual image to be erased. To erase  
unnecessary images, use one of the following  
methods:  
You may skip this step if you do not  
store the image.  
Perform Memory Reset to erase all images  
at one time {page 11}.  
When all channels are full, recall the  
unnecessary image, capture a new image,  
then press [MR].  
 
8
• You may just look at the LCD monitor  
and focus the camera onto an object  
instead of recalling an image; you  
need not press [S] to capture an  
image.  
TRANSMITTING IMAGES  
When an appropriate SSTV mode and a  
desired image is selected, the VC-H1 is  
ready to transmit images.  
6 Press [TX] to transmit the image.  
Note: AF Mute must be switched OFF {page 13} to  
transmit an image using Fast FM mode; the default  
is ON.  
• You need not press the PTT switch.  
• The TX/RX indicator lights red during  
transmission.  
1 Confirm that the VC-H1 has been  
correctly connected with the  
transceiver {page 5}.  
• A horizontal line appears and slowly  
moves downward to show the progress  
of transmission.  
On the transceiver:  
• To interrupt transmission, press [RX].  
2 Turn ON the power to the transceiver.  
3 Select the same frequency as the  
other party.  
On the VC-H1:  
Note:  
4 Slide the PWR switch upward to turn  
While transmitting, do not place the VC-H1 and  
the connection cable close to the transceiver  
antenna. The image on the monitor may be  
distorted or erased.  
the power ON.  
The TX/RX indicator lights green.  
The VC-H1 cannot receive images while  
transmitting.  
5 Press [MR] to recall an image to be  
If no operation is performed for approximately  
30 seconds after transmission, with Battery  
Saver ON {page 11}, the monitor is deactivated;  
the default is ON.  
transmitted.  
The currently selected channel number  
appears at the top right of the monitor.  
If you press [RX] after recalling an image,  
Battery Saver {page 11} deactivates the monitor.  
Each press of [MR] increments the  
channel number.  
 
9
7 When an image signal is received,  
RECEIVING IMAGES  
the image is displayed on the monitor.  
When the VC-H1 receives an image  
signal, it automatically identifies and sets  
the appropriate SSTV mode. The  
compatible modes are listed below:  
• The TX/RX indicator lights orange  
while an image is being received.  
• If the TX/RX indicator is green even  
when the monitor is deactivated by the  
Battery Saver {page 11}, the VC-H1  
can receive an image.  
• Robot (color) 36  
• AVT 90  
• Robot (color) 72  
• AVT 94  
• Scottie S1  
• Martin M1  
• Fast FM  
• Scottie S2  
• Martin M2  
8 To store the received image in an  
empty memory channel, press [MR].  
• If the size of the received image is too  
large to be stored in one channel, the  
next channel is also used.  
• When all channels are full, the  
currently selected channel is  
Note: AF Mute must be switched OFF {page 13} to  
receive an image transmitted using Fast FM mode;  
the default is ON.  
1 Confirm that the VC-H1 has been  
correctly connected with the  
transceiver {page 5}.  
overwritten with a received image.  
Note:  
When you fail to receive the first portion of an  
image signal in a mode other than AVT 90, AVT  
94, and Fast FM, pressing [RX] allows you to  
receive the remaining portion. However,  
because of possible insufficient synchronization,  
the VC-H1 could show an inappropriate color of  
an image, or fail to receive an image even if the  
TX/RX indicator lights orange.  
The automatically identified SSTV mode is used  
for your next transmission unless the mode is  
manually changed. If the identified mode is  
neither Robot (color) 36 nor Fast FM, switching  
OFF the VC-H1 causes it to restore the  
previously selected mode; Robot (color) 36 or  
Fast FM.  
If using a handy transceiver, switch OFF Battery  
Saver. When Battery Saver is ON, the  
transceiver may fail to receive an image.  
If using a TH-G71 transceiver, increasing the  
audio volume beyond a certain amount may  
cause the transceiver to fail to receive an image.  
Select the volume in the range shown to the left.  
On the transceiver:  
2 Turn ON the power to the transceiver.  
3 Select the same frequency as the  
other party.  
4 Adjust the volume control to a  
medium level.  
On the VC-H1:  
5 Slide the PWR switch upward to turn  
the power ON.  
The TX/RX indicator lights green.  
VOL  
ENC  
6 Tell the other party that you are ready  
to receive an image.  
 
10  
AUXILIARY FUNCTIONS  
MEMORY PROTECTION  
MEMORY RESET  
You can protect the captured or received  
images from being accidentally erased.  
You may sometimes want to reset all  
settings back to the factory defaults and  
clear the memory channels.  
1 Slide the PWR switch upward to turn  
the power ON.  
Press [S]+[HOLD]+ POWER ON.  
The TX/RX indicator lights green.  
2 Press [MR] to recall the desired  
image.  
Each press of [MR] increments the  
channel number.  
BATTERY SAVER  
If no operation is performed for  
approximately 30 seconds with Battery  
Saver ON, the monitor is deactivated;  
the default is ON.  
If no operation is performed for  
approximately 30 seconds, Battery Saver  
automatically turns OFF the power to the  
camera and monitor units. Pressing [S]  
activates the units again.  
3 Press [HOLD] to switch Protection  
ON (or OFF).  
To switch Battery Saver ON (default) or  
OFF, press [MR]+ POWER ON.  
When the channel is protected, its  
number on the monitor turns red.  
“SAVE-ON” or “SAVE-OFF” appears to  
indicate the new status.  
Note: When the protected memory channel is  
currently selected, the VC-H1 may still capture or  
receive an image to display on the monitor.  
However, the protected channel will not be used to  
store the newly displayed image.  
The TX/RX indicator lights green when  
Battery Saver deactivates the camera and  
monitor.  
The VC-H1 can still receive images when  
Battery Saver is ON.  
 
11  
5 Press [HOLD] to complete the entry.  
SUPERIMPOSING A CALL SIGN  
• When you transmit an image next time,  
the entered call sign will be  
superimposed.  
The VC-H1 allows you to superimpose  
your call sign onto an image to be  
transmitted. You can enter up to 8  
alphanumeric characters.  
• To correct the stored call sign, repeat  
the procedure which starts with step 1.  
In step 1, only “A” is shown in the  
window, whereas the previously  
entered call sign is still present in  
memory. You cannot correct specific  
digits individually.  
1 Press [MR]+[HOLD]+ POWER ON to  
switch the function ON (or OFF).  
A window for entering digits appears  
when the function is switched ON.  
• After transmitting an image, press  
[MR] to store the call sign in memory  
with the image, if necessary.  
2 Press [TX] or [RX] to select the first  
digit.  
The selectable characters are “0” to  
“9”, “A” to “Z”, and “/”.  
After entering a call sign, you may prefer  
not superimposing it onto some images.  
You can also deactivate auto  
3 Press [MR] to move to the next digit.  
superimposing. Press [HOLD]+  
POWER ON to activate (default) or  
deactivate auto superimposing.  
“CALL-ON” or “CALL-OFF” appears to  
indicate the new status.  
4 Repeat step 2 and 3 to enter up to 8  
characters.  
After selecting the 8th digit, you need  
not press [MR].  
To correct the entered digits, start with  
step 1 again. You cannot correct  
specific digits individually.  
 
12  
AUTO TRANSMIT  
DISPLAY CONTRAST CHANGE  
The VC-H1 is capable of automatically  
capturing and transmitting images every  
3 minutes. Press [S]+[TX]+  
You may sometimes need to adjust the  
display contrast on the monitor,  
depending on the ambient conditions.  
POWER ON to switch Auto Transmit ON  
or OFF (default).  
1 Press [TX]+[RX]+ POWER ON.  
• “CONTRAST” appears.  
• Keep pressing [S] and [TX] for longer  
than 2 seconds.  
• “A/TX-ON” or “A/TX-OFF” appears to  
indicate the new status.  
• If you have entered a call sign, it will be  
superimposed onto an image to be  
transmitted.  
2 Press [TX] or [RX] to change the  
contrast.  
• To interrupt transmission, press [RX].  
Note:  
When in Auto Transmit mode, the VC-H1 does  
not receive images.  
3 Press [MR] to complete the  
When in Auto Transmit mode, you cannot  
perform key operations other than [S]+[TX]+  
POWER ON and [RX].  
adjustment.  
AF MUTING  
You can specify whether the VC-H1 will  
mute only image signals or both audio  
and image signals. Press [RX]+  
POWER ON to switch AF ON (default) or  
OFF.  
• AF ON: Only image signals are muted.  
• AF OFF: Both audio and image signals  
are muted.  
• “AF-ON” or “AF-OFF” appears to indicate  
the new status.  
 
13  
MAINTENANCE  
GENERAL INFORMATION  
SERVICE NOTE  
This product has been factory aligned and tested to  
specification before shipment. Attempting service or  
alignment without factory authorization can void the  
product warranty.  
If you desire to correspond on a technical or operational  
problem, please make your note short, complete, and to  
the point. Help us help you by providing the following:  
1 Model and serial number of equipment  
2 Question or problem you are having  
3 Other equipment in your station pertaining to the problem  
SERVICE  
CAUTION: DO NOT PACK THE EQUIPMENT IN CRUSHED  
NEWSPAPERS FOR SHIPMENT! EXTENSIVE DAMAGE MAY RESULT  
DURING ROUGH HANDLING OR SHIPPING.  
When returning this product to your dealer or service  
center for repair, pack it in its original box and packing  
material. Include a full description of the problems  
experienced. Include your telephone number along with  
your name and address in case the service technician  
needs to call you; if available, include also your fax  
number and E-mail address. Don’t return accessory  
items unless you feel they are directly related to the  
service problem.  
Note:  
Record the date of purchase, serial number and dealer from whom  
this product was purchased.  
For your own information, retain a written record of any maintenance  
performed on this product.  
When claiming warranty service, please include a photocopy of the  
bill of sale, or other proof-of-purchase showing the date of sale.  
You may return this product for service to the authorized  
KENWOOD dealer from whom you purchased it, or any  
authorized KENWOOD service center. Please do not  
send subassemblies or printed circuit boards. Send the  
complete product. A copy of the service report will be  
returned with the product.  
CLEANING  
When the camera lens or monitor display becomes dirty,  
gently wipe its surface using the provided cloth. Be  
careful not to apply excessive force to the monitor  
display; the monitor could be damaged.  
To clean the case of this product, use a neutral detergent  
(no strong chemicals) and a damp cloth.  
 
14  
TROUBLESHOOTING  
The problems described in this table are commonly encountered operational malfunctions and are usually not caused  
by circuit failure.  
Problem  
Probable Cause  
Corrective Action  
Page Ref.  
The VC-H1 cannot be  
switched ON.  
1 The batteries have not been  
1 Load the batteries so that their  
polarities match those marked on  
the VC-H1.  
3
correctly loaded.  
2 The batteries became dead.  
3 An AC adapter other than the  
provided one has been used.  
4 Shorting the video input terminal  
power line with an external element  
caused the internal fuse to blow.  
2 Replace the batteries.  
3 Use the AC adapter that came  
with the VC-H1.  
4 Contact your KENWOOD dealer,  
customer service, or service  
station.  
3
4
11  
The power to the camera and The Battery Saver is ON.  
monitor units are  
If necessary, switch OFF the  
Battery Saver.  
automatically turned OFF.  
The color of a recalled image The lens was affected by direct light Be careful not to expose the lens to  
differs from that of an image  
shown when [S] was pressed.  
from a light source such as the sun. any direct light.  
An image cannot be  
1 The operating frequency selected 1 Select the exact same operating  
transmitted or received.  
on the transceiver did not match  
that of the other party.  
frequency as the other party.  
2 The selected SSTV mode did not 2 Select the same SSTV mode as  
match that of the other party. the other party.  
3 The VC-H1 and transceiver have 3 Check the connections between  
7
5
not been correctly connected.  
4 An interference signal was  
received.  
the VC-H1 and transceiver.  
4 Move to another frequency with  
the other party.  
No audio is output from the  
VC-H1 speaker.  
AF Mute is OFF.  
Switch AF Mute ON.  
13  
 
15  
APPENDIX  
VC-H1 DATA PORT PIN FUNCTIONS  
CONNECTION DIAGRAM WITH TS-570 OR TS-870  
Pin No. Pin Name  
Function  
Note: Pin 1 of the connector, which mates with the VC-H1 DATA port,  
can be identified with a triangle mark on the connector. Pin 1 is located  
just below the mark.  
1
2
NC  
SSDO  
6V  
No connection  
Image data output (not usually used)  
+6 V output (not usually used)  
Digital signal ground  
VC-H1 (DATA port)  
P1  
NC  
3
P2  
SSDO  
6V  
4
DG  
TS-570 or TS-870  
(ACC 2 connector)  
P3  
5
TXD  
RXD  
Serial data transmission  
Serial data reception  
P4  
DG  
6
P5  
TXD  
RXD  
SSPTT  
FSSDO  
SSDI  
NC  
7
SSPTT Image data PTT  
P6  
FSSDO Image data output (Fast FM mode) 1  
P7  
8
P8  
9
SSDI  
NC  
Image data input  
No connection  
P9  
10  
11  
12  
13  
14  
15  
16  
P10  
P11  
P12  
P13  
P14  
P15  
P16  
PTT  
3MS  
SP  
Audio PTT  
PTT  
3MS  
SP  
+3.5 ~ +6 V input  
Audio input (0.5 W/ 8 )  
Microphone input  
MIC  
MSP  
G
MIC  
MSP  
G
13  
2
Audio input  
9
5
1
10  
6
11 12  
7
3
8
4
Ground  
2
1
This pin is used for a connection with the DATA connector on  
a TM-255, TM-455, TM-733, TM-V7, or TM-G707  
transceiver.  
ACC 2 Connector  
(Rear panel view)  
2
This pin is used when AF power is over 0.5 W/ 8 .  
 
16  
Computer COM Port Pin Functions (9-Pin Port)  
COMPUTER CONTROL  
If the dedicated program is installed, your personal  
computer can be connected with the COM jack of the  
VC-H1, then the VC-H1 can be easily controlled via the  
computer. For details, contact your authorized  
Pin No. Pin Name  
Function  
No connection  
RX data  
To  
DCD  
RXD  
TXD  
DTR  
GND  
DSR  
RTS  
CTS  
RI  
q
w
e
r
t
y
u
i
o
Pin 5 1  
Pin 6 1  
DSR 2  
Pin 16 1  
DTR 2  
CTC 2  
RTS 2  
KENWOOD dealer, customer service, or service center.  
TX data  
You can also connect a computer to the DATA port of the  
VC-H1 in order to control the VC-H1 via the computer.  
This, however, asks you to manually send ST commands  
to the VC-H1 through the computer.  
Data Terminal Ready  
Signal ground  
Data Set Ready  
TX request  
Note: Pin 1 of the connector, which mates with the VC-H1 DATA port,  
can be identified with a triangle mark on the connector. Pin 1 is located  
just below the mark.  
TX enable  
No connection  
1
2
Pins of the DATA port on the VC-H1  
No connection with the VC-H1  
Use an appropriate communications program to set the  
following parameters on your personal computer.  
• Transfer rate: 9600 bps  
• Data length: 8 bit  
• Stop bit:  
• Parity:  
1 bit  
Non  
• Flow control: Non  
• Data format: ASCII  
1
2
3
4
5
6
7
8
9
Computer COM Port  
 
17  
A STC command should consist of a command name,  
space, call sign, comma, color parameter, and [CR];  
ex. STC JA1YKX, 1 [CR]. You can enter up to 8  
characters as a call sign, using “0” to “9”, “A” to “Z”,  
“/”, “-”, “!”, “?”, or a space. The parameters of call  
sign colors are listed below:  
Commands List  
Pin No. Pin Name  
Function  
SSTV mode switch/  
Inquiry of current SSTV mode  
STS  
q
STC  
STM  
STR  
STP  
STT  
Call sign superimposition  
Message superimposition  
RSV superimposition  
Image capture  
w
e
r
t
y
Parameter  
Function  
black  
blue  
Parameter  
Function  
green  
0
1
2
3
4
5
6
7
light blue  
yellow  
red  
Image transmission  
purple  
white  
Commands Format  
The formats of STM and STR commands are the  
same as of STC commands except that a message or  
RSV replaces a call sign; ex. STM CQ SSTV, 2[CR].  
The characters which can be entered are also the  
same as for STC commands.  
Note: Use capital letters to enter a command name.  
A STS command should consist of a command  
name, space, parameter, and [CR]; ex. STS 0 [CR].  
Parameter  
Function  
Parameter  
Function  
Up to 9 characters can be entered as a message.  
Up to 10 characters can be entered for a RSV.  
Inquiry of  
current SSTV  
mode  
Non  
4
Scottie S1 1  
STP and STT commands consist of a command  
name and [CR]; ex. STP[CR].  
0
1
2
3
Robot 36  
Robot 72  
AVT 90 1  
AVT 94 1  
5
6
7
8
Scottie S2 1  
Martin M1 1  
Martin M2 1  
Fast FM  
1 Compatible  
 
18  
SPECIFICATIONS  
Specifications are subject to change without notice due  
to developments in technology.  
50 mVp-p ~ 3.0 Vp-p  
600 Hz ~ 6.8 kHz (Fast FM)  
1.0 kHz ~ 2.4 kHz (other than  
Fast FM)  
Still picture signal input  
SCFM through digital signal  
Still picture modulation method  
processing  
1 Vp-p ±20% (Fast FM)  
50 mVp-p ±20% (other than  
Fast FM)  
Arc tangent angle change  
detection through digital signal  
processing  
Still picture demodulation  
method  
Microphone  
Still picture  
signal output  
(level: not  
variable)  
SSDO  
50 mVp-p ±20%  
Robot (color) 36/  
Robot (color) 72/ AVT 90 1/  
FSSDO  
1.5 Vp-p ±20% (Fast FM only)  
1
Still image mode  
AVT 94 / Scottie S1 1/  
Scottie S2 1/ Martin M1 1/  
Martin M2 1/ Fast FM  
1 display buffer (175K bytes,  
non-compressed)/  
Image memory  
10 compressed images (max.)  
conform to JPEG/ Approx. 4  
years memory backup  
Modulation mode (transceiver  
to be connected with:)  
F5  
External bias/ Electret  
condenser microphone  
Microphone  
Speaker  
115 kbps, RS232C level  
computer interface/  
Asynchronous 8 bit/ 1 stop bit/  
No parity/ Non flow control  
Expansion port  
1 W (max.),16 Ω  
1.8 inch TFT/ color LCD,  
coated for preventing surface  
reflection  
LCD  
9600 bps, CMOS level output  
(TXD)/ RS232C level input  
(RXD)/ Negative logic input  
and output  
Transceiver interface  
External power  
input (DC IN)  
6.0 V DC ±10%  
Rated  
voltage  
Image capture in  
650 mA (max.)  
Battery terminals 6.0 V DC (4 AA alkaline batteries)  
progress  
LCD in use  
Standby  
Use  
Current  
consumption  
75 Ω, 1 Vp-p (140 IRE) ±15%,  
NTSC/ Sub-carrier frequency:  
within ±200 Hz/ Non DC offset  
450 mA (average)  
100 mA (average)  
0°C ~ +40°C  
Video signal input  
75 Ω, 1 Vp-p (140 IRE) ±15%,  
NTSC  
Video signal output  
Temperature  
range  
Storage  
–20°C ~ +60°C  
1
Compatible  
 
19  
 

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