Kramer Electronics Stereo System 7508 User Manual

Kramer Electronics, Ltd.  
Preliminary  
USER MANUAL  
Model:  
7508  
CV/YC to SDI Converter  
 
Introduction  
1
Introduction  
Welcome to Kramer Electronics! Since 1981, Kramer Electronics has been  
providing a world of unique, creative, and affordable solutions to the vast  
range of problems that confront the video, audio, presentation, and  
broadcasting professional on a daily basis. In recent years, we have  
redesigned and upgraded most of our line, making the best even better! Our  
1,000-plus different models now appear in 11 groups1 that are clearly  
defined by function.  
Thank you for purchasing your Kramer DigiTOOLS 7508 CV/YC to SDI  
Converter, which is ideal for broadcast and production video studios,  
postproduction and duplication studios, and non-linear editing. The package  
includes the following items:  
7508 CV/YC to SDI Converter  
Power supply  
Null-modem adapter and Windows®-based Kramer control  
software  
This user manual2  
2
Getting Started  
We recommend that you:  
Unpack the equipment carefully and save the original box and  
packaging materials for possible future shipment  
Review the contents of this user manual  
Use Kramer high performance high-resolution cables3  
1
GROUP 1: Distribution Amplifiers; GROUP 2: Switchers and Matrix Switchers; GROUP 3: Control Systems;  
GROUP 4: Format/Standards Converters; GROUP 5: Range Extenders and Repeaters; GROUP 6: Specialty AV Products;  
GROUP 7: Scan Converters and Scalers; GROUP 8: Cables and Connectors; GROUP 9: Room Connectivity;  
GROUP 10: Accessories and Rack Adapters; GROUP 11: Sierra Products  
2 Download up-to-date Kramer user manuals from our Web site at http://www.kramerelectronics.com  
1
 
         
Getting Started  
2.1 Quick Start  
This quick start chart summarizes the basic setup and operation steps.  
KRAMER: SIMPLE CREATIVE TECHNOLOGY  
2
 
 
Overview  
3
Overview  
The high quality Kramer DigiTOOLS 7508 CV/YC to SDI Converter is a  
multi-standard converter of analog video (composite and s-Video) to  
SMPTE-259M serial digital video (SDI). Many professional video units on  
the market today, such as Betacam decks and DVD players have high  
quality analog outputs, and the 7508 is ideal for preserving the quality, and  
minimizing the artifacts, when converting to the digital domain.  
In particular, the 7508:  
Converts the SDI on 2 buffered and reclocked SDI outputs  
Automatically detects the input standard (50/60Hz), generating the  
appropriate output  
Uses true 10-bit digitizing, making it ideal for the most demanding  
applications  
Has an RS-232 port and can be controlled via a user-friendly  
Windows®-based program that can modify video parameters such  
as contrast, saturation and hue, which may be stored in non-volatile  
memory  
To achieve the best performance:  
Use only good quality connection cables1 to avoid interference,  
deterioration in signal quality due to poor matching, and elevated  
noise levels (often associated with low quality cables).  
Avoid interference from neighboring electrical appliances that may  
adversely influence signal quality and position your Kramer 7508  
away from moisture, excessive sunlight and dust  
1 Available from Kramer Electronics on our Web site at http://www.kramerelectronics.com  
3
 
   
Your 7508 CV/YC to SDI Converter  
4
Your 7508 CV/YC to SDI Converter  
Figure 1 and Table 1 define the 7508 CV/YC to SDI Converter:  
Figure 1: 7508 CV/YC to SDI Converter  
Table 1: 7508 CV/YC to SDI Converter Features  
#
Feature  
Function  
1
12V DC  
+12V DC connector for powering the unit  
2
3
4
5
6
7
8
SDI OUT 2 BNC Connector Connects to the SDI acceptor 2  
SDI OUT 1 BNC Connector Connects to the SDI acceptor 1  
Y/C INPUT 4-pin Connector Connects to the s-Video source  
CV INPUT BNC Connector Connects to the composite video source  
ON LED  
Illuminates when receiving power  
RS-232 Port  
Dipswitches  
Connects to the PC or the remote controller  
DIP-switches for setup of the unit  
KRAMER: SIMPLE CREATIVE TECHNOLOGY  
4
 
     
Using Your 7508 CV/YC to SDI Converter  
5
Using Your 7508 CV/YC to SDI Converter  
You can use your 7508 CV/YC to SDI Converter to convert professional  
quality composite video or s-Video (as the example in Figure 2 illustrates)  
to one or two SDI video outputs.  
To convert composite video or s-Video to up to 2 SDI video outputs, do the  
following1:  
1. Connect a composite video source (for example, a VCR) to the CV BNC  
INPUT connector.  
2. Connect an s-Video source (for example, a camera) to the Y/C 4-pin  
INPUT connector.  
3. Connect both SDI outputs to SDI acceptors as follows (when only one SDI  
output is required, use either of the SDI outputs of the 7508, and leave the  
other SDI output unconnected):  
Connect the SDI OUT 1 BNC connector to an SDI acceptor  
(for example, an SDI monitor)  
Connect the SDI OUT 2 BNC connector to the second SDI  
acceptor (for example, an SDI monitor)  
4. Set the DIP-switches, as section 5.2 describes  
5. Connect the 12V DC power adapter to the power socket and connect the  
adapter to the mains electricity.  
The composite video2 or s-Video3 signal converts to SDI at both SDI OUT  
1 and SDI OUT 2.  
6. Connect a PC (if required) to the RS-232 port (see section 5.1).  
1 Switch OFF the power on each device before connecting it to your 7508. After connecting your 7508, switch on its power  
and then switch on the power on each device  
2 To choose the CV input, set the Y/C (DIP 1) OFF  
3 To choose the Y/C input, set the Y/C (DIP 1) ON  
5
 
       
Using Your 7508 CV/YC to SDI Converter  
Figure 2: Connecting a 7508 CV/YC to SDI Converter  
5.1 Connecting a PC  
You can connect to the unit via a crossed RS-232 connection, using for  
example, a PC. A crossed cable or null-modem is required as shown in  
method A and B respectively. If a shielded cable is used, connect the shield  
to pin 5.  
Method A (Figure 3)—Connect the RS-232 9-pin D-sub port on the unit via  
a crossed cable (pin 2 to pin 3, pin 3 to pin 2, and pin 5 to pin 5) to the  
RS-232 9-pin D-sub port on the PC.  
Note: There is no need to connect any other pins.  
KRAMER: SIMPLE CREATIVE TECHNOLOGY  
6
 
   
Using Your 7508 CV/YC to SDI Converter  
Figure 3: Crossed Cable RS-232 Connection  
Hardware flow control is not required for this unit. In the rare case where a  
controller requires hardware flow control, short pin 1 to 7 and 8, and pin 4  
to 6 on the controller side.  
Method B (Figure 4)—Connect the RS-232 9-pin D-sub port on the unit via  
a straight (flat) cable to the null-modem adapter, and connect the null-  
modem adapter to the RS-232 9-pin D-sub port on the PC. The straight  
cable usually contains all nine wires for a full connection of the D-sub  
connector. Because the null-modem adapter (which already includes the  
flow control jumpering described in Method A above) only requires pins 2,  
3 and 5 to be connected, you are free to decide whether to connect only  
these 3 pins or all 9 pins.  
Figure 4: Straight Cable RS-232 Connection with a Null Modem Adapter  
7
 
   
Using Your 7508 CV/YC to SDI Converter  
5.2 Setting the DIP-Switches  
Configure the 7508 unit by setting the DIP-switches, as shown in Table 2  
Table 2: Setting the DIP-Switches  
DIP-Switch  
Set as Follows:  
ON for Y/C source; OFF for CV source  
1
2
3
Y/C  
RESERVED  
PEDESTAL1  
OFF  
ON for pedestal (7.5 IRE offset selection for NTSC); OFF for no pedestal  
AUTO  
NTSC  
ON  
PAL  
OFF  
ON  
PAL-M PAL-N  
NTSC-4 SECAM AUTO  
4
5
6
7
8
STANDARD 1 OFF  
STANDARD 2 OFF  
STANDARD 3 OFF  
ON  
OFF  
OFF  
ON  
ON  
OFF  
ON  
ON  
ON  
ON  
OFF  
OFF  
ON  
OFF  
ON  
OFF  
OFF  
ON  
RESERVED  
PROGRAM  
OFF  
ON for upgrading firmware; OFF for normal use  
Figure 5: DIP-Switch Settings  
1 NTSC offsets the black level within the active video signal by 7.5 IRE when selected  
KRAMER: SIMPLE CREATIVE TECHNOLOGY  
8
 
       
Technical Specifications  
6
Technical Specifications  
Table 3 includes the technical specifications:  
Table 3: Technical specifications1 of the 7508 CV/YC to SDI Converter  
INPUT:  
1 composite video, 1Vpp/75Ω on a BNC connector;  
1 s-Video, 1Vpp, 0.3Vpp/75Ω on a 4-pin connector  
OUTPUT:  
2 SDI SMPTE-259M, ITU-R BT.601 on BNC connectors  
DIGITAL RESOLUTION:  
BANDWIDTH:  
10 bits  
5MHz (-0.2dB)  
S/N RATIO:  
57dB  
K-FACTOR:  
<0.2%  
DIFFERENTIAL PHASE:  
DIFFERENTIAL GAIN:  
LUMA NON-LINEARITY:  
CHROMA/LUMA DELAY:  
CONTROL:  
1Deg  
1%  
1%  
<15ns  
Brightness, contrast, hue, saturation, sharpness via RS-232  
12V DC, 210mA  
POWER SOURCE:  
DIMENSIONS:  
12cm x 7.5cm x 2.5cm (4.7" x 2.95" x 0.98") W, D, H  
0.3kg (0.66lbs) approx.  
WEIGHT:  
ACCESSORIES:  
OPTIONS:  
Power supply, mounting bracket  
RK-3T 19" rack adapter  
1 Specifications are subject to change without notice  
9
 
     
Communication Protocol  
7
Communication Protocol  
RS-232 communication with the 7508 complies with the following protocol.  
The protocol uses 4 bytes of information, and data is at 9600 baud, with no  
parity, 8 data bits and 1 stop bit.  
Table 4: Structure of the Protocol  
MSB  
LSB  
INSTRUCTION  
0
7
TO PC  
6
I5  
5
I4  
4
I3  
3
I2  
2
I1  
1
I0  
0
1st byte  
DATA  
1
7
D6  
6
D5  
5
D4  
4
D3  
3
D2  
2
D1  
1
D0  
0
2nd byte  
EXTENDED DATA  
1
7
E6  
6
E5  
5
E4  
4
E3  
3
E2  
2
E1  
1
E0  
0
3rd byte  
MSB’s  
ADDR  
1
7
E7  
6
D7  
5
0
4
0
3
1
2
1
1
0
0
4th byte1  
Note that the MSB’s of the DATA (D7) and the EXTENDED DATA (E7) are in the fourth byte.  
Terminology:  
TO PC is the “DESTINATION BIT”  
I4..I0 is the “INSTRUCTION”  
D7..D0 is the “DATA”  
E7..E0 is the “EXTENDED DATA”  
A0 is the “LSB of the MACHINE ADDRESS”  
The destination bit, TO PC, is 0 when sending from the PC to the machine, or 1 when sending from the machine to the PC.  
Table 5: Instruction Set for the 7508  
#
INSTRUCTION  
I5 I4  
I3  
I2 I1 I0  
0
1
3
10  
11  
12  
13  
16  
57  
61  
Reset  
Read video standard  
Read back-panel DIP-switch 1 (video format CV/YC)  
Write EEPROM data – low address  
Read EEPROM data – low address  
Write I²C  
Read I²C  
Error  
Enable “Power-down save”  
Identify machine  
0
0
0
0
0
0
0
0
1
1
0
0
0
0
0
0
0
1
1
1
0
0
0
1
1
1
1
0
1
1
0
0
0
0
0
1
1
0
0
1
0
0
1
1
1
0
0
0
0
0
0
1
1
0
1
0
1
0
1
1
1 Note that the MSB’s of the DATA (D7) and the EXTENDED DATA (E7) are in the fourth byte  
KRAMER: SIMPLE CREATIVE TECHNOLOGY  
10  
 
       
Communication Protocol  
DESCRIPTION OF INSTRUCTIONS  
INSTRUCTION 0 – RESET  
DATA=0: initialize the machine.  
When the machine is initialized, it will send the RESET code (DATA = 0). If the machine receives this code, it will reset to  
its “power-up” state.  
DATA=1: configure the machine to its factory default state.  
When the machine receives this code, all programmable parameters will be reset to their factory-default values.  
EXTENDED DATA - set as 0.  
INSTRUCTION 1 – READ INPUT STANDARD  
For sending to machine, set DATA = EXTENDED DATA = 0.  
When replying:- DATA = INPUT STANDARD; EXTENDED DATA = 0. The PC sends this instruction to the machine. The  
machine replies by sending back the INPUT STANDARD, defined as per the table below:  
Table 6: Input Standard  
STANDARD  
E2  
E1  
E0  
NTSC (J, M)  
PAL (B, G, H, I, N)  
PAL-M  
Combination PAL-N  
NTSC 4.43  
0
0
0
0
1
0
0
1
1
0
0
1
0
1
0
INSTRUCTION 3 – READ BACK-PANEL DIP-SWITCH 1 (VIDEO FORMAT) (read format)  
When sending to machine:- DATA, EXTENDED DATA - set as 0.  
When replying:- EXTENDED DATA = back-panel DIP switch 1 (0=CV, 1=Y/C).; DATA = 0. The PC sends this instruction  
to the machine. The machine replies by sending back a value relating to the current video format.  
INSTRUCTION 10 – WRITE EEPROM DATA  
DATA = EEPROM sub-address; EXTENDED DATA = data to be written to this sub-address. The PC sends data directly to  
the EEPROM. The EEPROM stores this new value, and replies by sending the same data back to the PC. CAUTION – this  
function was designated for development and testing purposes. Improper use of this function may cause erratic behaviour of  
the machine.  
INSTRUCTION 11 – READ EEPROM DATA  
For sending to machine, DATA = EEPROM sub-address.  
When replying:- DATA = EEPROM sub-address; EXTENDED DATA = requested data.  
The PC sends this instruction to the machine. The machine replies by sending back the data of this sub-address.  
INSTRUCTION 12 – WRITE I²C  
DATA = I²C sub-address; EXTENDED DATA = data to be written to this sub-address.  
The PC sends I²C data (to the I²C address which was last accessed via INSTRUCTION 13). The machine replies by sending  
the same data back to the PC.  
CAUTION – this function was designated for development and testing purposes. Improper use of this function may cause  
erratic behavior of the machine.  
INSTRUCTION 13 – READ I²C  
For sending to machine, DATA = I²C address; EXTENDED DATA = sub-address.  
When replying:- DATA = sub-address; EXTENDED DATA = data read.  
The PC sends this instruction to the machine. The machine replies by sending back the data of this address and sub-address.  
INSTRUCTION 16 – ERROR  
If the machine receives an invalid instruction, it replies by sending this error code.  
INSTRUCTION 57 – ENABLE “POWER-DOWN SAVE”  
DATA = 0 disables power-down saving; DATA = 1 enables saving. EXTENDED DATA - set to 0.  
The PC sends this instruction to the machine. The power-down option is enabled or disabled according to the value of DATA.  
If the power-down option is enabled, then the machine will “remember” its state before being turned off, and revert to this  
state when turned on again.  
Note that whenever the machine is turned on, the power-down save option is enabled.  
INSTRUCTION 61 – IDENTIFY MACHINE  
For sending, DATA = 1 to request machine name; DATA = 3 to request software version number. EXTENDED DATA - set  
to 0.  
The PC sends this instruction to the machine. The machine relies as follows:  
if the machine name is requested, the machine replies with DATA = 75 (hex), and EXTENDED DATA = 01 (hex).  
if the software version is requested, the machine replies with DATA as the version number before the decimal point, and  
EXTENDED DATA is the value following the decimal point. For example, for version 3.4, the machine replies with DATA =  
03 (hex), and EXTENDED DATA = 04 (hex).  
11  
 
 
LIMITED WARRANTY  
Kramer Electronics (hereafter Kramer) warrants this product free from defects in material and workmanship under the  
following terms.  
HOW LONGISTHE WARRANTY  
Labor and parts are warranted for three years from the date of the first customer purchase.  
WHOIS PROTECTED?  
Only the first purchase customer may enforce this warranty.  
WHATIS COVEREDANDWHATIS NOTCOVERED  
Except as below, this warranty covers all defects in material or workmanship in this product. The following are not covered  
by thewarranty:  
1. Any product which is not distributed by Kramer, or which is not purchased from an authorized Kramer dealer. If you are  
uncertain as to whether a dealer is authorized, please contact Kramer at one of the agents listed in the Web site  
2. Any product, on which the serial number has been defaced, modified or removed, or on which the WARRANTY VOID  
IF TAMPERED sticker has been torn, reattached, removed or otherwise interfered with.  
3. Damage, deterioration ormalfunctionresultingfrom:  
i) Accident, misuse, abuse, neglect, fire, water, lightning orotheractsofnature  
ii) Product modification, orfailureto followinstructions supplied with theproduct  
iii) Repairorattemptedrepairby anyonenot authorized byKramer  
iv) Anyshipment oftheproduct(claims must bepresentedtothe carrier)  
v) Removalorinstallationoftheproduct  
vi) Anyothercause, whichdoes not relateto aproduct defect  
vii) Cartons, equipment enclosures, cables or accessoriesusedinconjunctionwiththeproduct  
WHAT WE WILLPAY FOR AND WHATWE WILLNOT PAYFOR  
Wewill pay laborand material expensesforcovered items.Wewill notpayforthefollowing:  
1. Removal orinstallationscharges.  
2. Costs of initial technical adjustments (set-up), including adjustment of user controls or programming. These costs are the  
responsibility oftheKramerdealerfromwhomtheproduct was purchased.  
3. Shipping charges.  
HOW YOU CAN GET WARRANTY SERVICE  
1. To obtain service on you product, you must take or ship it prepaid to any authorized Kramer service center.  
2. Whenever warranty service is required, the original dated invoice (or a copy) must be presented as proof of warranty  
coverage, and should be included in any shipment of the product. Please also include in any mailing a contact name,  
company, address, and a description of the problem(s).  
3. For the name of the nearest Kramer authorized service center, consult your authorized dealer.  
LIMITATION OFIMPLIEDWARRANTIES  
All implied warranties, including warranties of merchantability and fitness for a particular purpose, are limited in duration to  
the length of this warranty.  
EXCLUSIONOFDAMAGES  
The liability of Kramer for any effective products is limited to the repair or replacement of the product at our option. Kramer shall  
not beliable for:  
1. Damage to otherproperty caused by defects inthis product, damages basedupon inconvenience, loss ofuseof theproduct, loss  
oftime, commercialloss; or:  
2. Any other damages, whether incidental, consequential or otherwise. Some countries may not allow limitations on how long an  
implied warranty lasts and/or do not allow the exclusion or limitation of incidental or consequential damages, so the above  
limitations andexclusions maynot applytoyou.  
Thiswarranty gives youspecificlegalrights, andyou may alsohaveotherrights, which varyfromplacetoplace.  
NOTE:Allproducts returned to Kramerforservicemust havepriorapproval.Thismay be obtained fromyourdealer.  
Thisequipment has been testedtodeterminecompliancewith therequirements of:  
EN-50081:  
"Electromagneticcompatibility(EMC);  
genericemissionstandard.  
Part 1: Residential, commercial and lightindustry"  
"Electromagneticcompatibility(EMC)genericimmunitystandard.  
Part 1: Residential, commercialand lightindustryenvironment".  
FCC* Rules and Regulations:  
EN-50082:  
CFR-47:  
Part 15: “Radio frequency devices  
Subpart B Unintentional radiators”  
CAUTION!  
Servicing the machines can only be done by an authorized Kramer technician. Any user who makes changes or  
modifications to the unit without the expressed approval of the manufacturer will void user authority to operate the  
equipment.  
UsethesuppliedDCpowersupply to feed power to themachine.  
Pleaseuserecommended interconnection cablestoconnect themachineto other components.  
* FCCandCE approvedusingSTPcable(fortwistedpairproducts)  
KRAMER: SIMPLE CREATIVE TECHNOLOGY  
12  
 
For the latest information on our products and a list of Kramer  
distributors, visit our Web site: www.kramerelectronics.com.  
Updates to this user manual may be found at  
We welcome your questions, comments and feedback.  
Kramer Electronics, Ltd.  
P/N: 2900-007508 REV 2  
 

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