DD35XtenddLAN Issues.pdf - Grass Valley

Service Information
for Broadcast Equipment
SI-R-2002-013
Date: 20.12.2002 Product: DD/HD35, XtenDD/HD Reference:
Responsible: Thomas Heil Department: TS-SP
Phone: +49 (0) 6155 870 327
Fax: +49 (0) 6155 870 137
Sheet: 1/8
e-mail:
TechSupportSwitcher@thmulti.com
Recommended service personnel:
Technical Support
Customer Support NSO
Certificated Field Support
To be modified at:
Factory site
Customer site
Note:
This Service Information is for internal use only! All orders only available via customer support organization!
Production Switchers DD35, XtenDD , XtenDD (HD)
Controller Boards RY2156, RY3156, RC2374 and RY2600
Loss of Communication on the LAN and Unspecific Error Messages
1. General
In some cases the panel looses communication with the E- Box, which can be
caused by different reasons. Also in some cases you will get unspecific error
messages like “temperature sensor not accessible”. In the past some SIs
and FAQs dealing with this problems have been published. This new SI sums
up these information and updates to the latest point.
Former Service Information (SI) which now became replaced respectively
updated:
SI-R-2002-006
SI-R-2002-004
SI-R-2001-005
SI-R-2000-013
LAN Communication Problems
Error message "DS0200.23B Temperature Sensor not
accessible"
Mismatching at the Converter Type “Magnum TB14”
Cheapernet connection cable
Attention:
Electrostatically sensitive devices on the p.c. boards. Observe the
precaution for handling.
Project Manager:
PJM / Rainer Sturm
Product Manager:
PDM / Rolf Grzibek
Technical Support:
TS-SP / Thomas Heil
BTS Media Solutions GmbH, Brunnenweg 9, D-64331 Weiterstadt, Germany

Service Information SI-R-2002-013
DD35 / XtenDD / HD
2. Code Converter Problems
After hardware modification of all types of controller boards (a new type of
Manchester-Code-Converter IC chip has been implemented), sporadic LAN
disconnections between mainframe and control panel can occur.
Controllers of hardware indices shown in the following list can be affected by this
phenomenon. How to find out the hardware index, please refer to chapter 6
Type
HW
Index
Designation
Order No.
Exchange part
RY 2156 > 9 Mainframe Controller DD35 0 212 240 790
RY 3156 > 9 Mainframe Controller XtenDD (SD and HD) 0 212 315 690
RY 2374 > 4 Panel Controller RPS35-2 / -2S / -3 / -4/32 0 351 774 490
RY 2600 > 2 RSE1 Controller 0 212 320 190
A different way to check is identifying the type of assembled IC‘s on the PCBs.
former type: SEEQ N08023
new type: MicroLinear ML2652
Location of IC Chips
Board
Type
IC Location
with
SEEQ N08023
IC Location
with
ML2652
RY 2156 V155 V141
RY 3156
V141
RY 2374 V42 V42
RY 2600
V64
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DD35 / XtenDD / HD
Service Information SI-R-2002-013
Reason of the Modification
The Manchester-Code-Converter IC chip has been changed from manufacturer
SEEQ to MicroLinear. Some modifications of the resistor-arrays have to be done to
get the new IC chip into reliable functionality.
The problem represents as follows: Sudden interruption of LAN connection between
Sidepanel PC and Mainframe controller and/or Panel controller. The functionality can
not be re-established by a reset at the controller boards. The system must be shut
down (E-Box and Control Panel) and booted again.
Intended Customers
The upgrade should be performed if customers report about LAN interruptions and
any cause by another fault can be excluded. If possible, including spare part
controllers which is strongly recommended.
Exchange Procedure
If these problems occurs the boards have to be modified, respectively have to be
replaced.
When ordering exchange boards it is absolutely necessary to indicate the serial
number of Ebox and panel. All exchange boards will be delivered with the software
version V4.x.x.
Before sending back to the factory check by means of all other items of this Service
Information whether the trouble is not caused by another fault.
Modified controller boards will have the following hardware index:
Switcher
Model
Type
HW Index
Modified
Boards
DD35 05 … 08 (97)
RY2156
19 (97)
XtenDD (SD&HD) RY3156 23
DD35 04(99), 09(99)
XtenDD (SD&HD) RC2374 13
RSE1 06 (95)
RY 2600
11
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Service Information SI-R-2002-013
DD35 / XtenDD / HD
3. Cheapernet Connection Cable
The use of wrong cables for the cheapernet connection at the switcher (e.g. 50-ohm
cables with 75-ohm BNC plug connectors) will cause communication problems. It is
absolutely necessary that only 50-ohm cables with 50-ohm plug connectors are used
for the cheapernet connection of switcher panels and mainframes.
Cable type RG58
Ohm-value of the surge impedance
Cheapernet connection cable KV 0770 (50-Ohm coax)
The BNC plug connectors (50-ohm / 75-ohm) are very similar. Aside from the surge
impedance, the difference between the 50-ohm and 75-ohm BNC plug connectors is
the smaller diameter of the center contact pin for 75-ohm. It may lead to an unstable
contact at the 50-ohm BNC plug connector.
The BNC plug connector type is marked at the outer ring of the bayonet. BNC plug
connectors without such a type designation must not be used.
50-Ohm BNC connector
75-Ohm BNC connector
Ready-made cheapernet cables can be ordered from Thomson Multimedia.
HF coax cable,
Part number
length
1 m 0 782 740 100
1.5 m 0 782 740 200
5 m 0 782 740 300
20 m 0 782 740 400
30 m 0 782 740 700
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DD35 / XtenDD / HD
Service Information SI-R-2002-013
4. Mismatching at the Converter Type “Magnum TB14”,
(RPS-2S Panels only)
The LAN Converter type “Magnum TB14”, used in RPS35–2S panels can be set to
internal termination at the BNC connector end. In this case distortions might be
caused when transmitting data via the cheapernet LAN.
Normally, the 10Base2 ports are connected with a BNC-T connector to the switcher
network and terminated with 50-ohm resistors at both ends. Some panels have the
switch of the LAN converter set in wrong position “INT”, i.e. the 10Base2 port is
terminated internallly. The switch position cannot be seen from outside. When the
LAN converter is mounted in the panel, the switch cannot be set to “EXT” since it is
hidden by the mechanics. For this reason it is required to find out the switch position
by measuring from outside at 10Base2 port (J10 IPC LAN connector) using an
ohmmeter.
First, the panel has to be disconnected from the LAN bus. Measurement is made
from the inner pin of the BNC connector (J10 IPC LAN) against the shield (connector
case).
1. If the switch is at position “INT”, 50 ±1 ohms are measured .
2. If the switch is at position “EXT”, a value of ″∞“ (=infinite) is measured.
When the measurement shows that the switch is in “INT“, the LAN converter has to
be removed. It is screwed at two points to the lower part of the panel. For removing,
loosen the nut of the BNC connector with a socket wrench, subsequently loosen the
small cross-head screw below the BNC connector.
Using a small screw driver set the switch to position “EXT“ and reassemble the unit
in reverse order.
LAN Converter “Magnum TB14”:
Switch
position
INT
EXT
„INT“ / „EXT“
switch
Mounting screw
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Service Information SI-R-2002-013
DD35 / XtenDD / HD
5. LAN Connection Checklist
Please ensure, that following potential sources of error can be excluded
(see also FAQ R-28)
Both ends must be terminated with 50 Ohm.
Are all T- and BNC connectors 50 Ohm types? 75 Ohm types have a
smaller diameter of the inner connector causing uncertain contact.
Use 50 Ohm cables type RG 58 only.
No stubs are allowed.
Check that the resistance measured at any T-type connector is
25..30 Ohm, depending on cable length.
The LAN shield must be connected to a PE terminal only once
(at E-Box side).
Check the LAN specs:
- total section length less than 150m,
- more than 50cm between junctions,
- less than 20 modules per section,
- max 6 sections interconnected by repeaters.
If patch panels are in use, its connectors must be strictly isolated,
no EMV capacitors are allowed.
Connect E-Box and attach Panel in Startup menu.
Can you ping the modules?
Check if an IP address is given twice (address conflict).
Note: an E-Box needs three, a Panel two IP addresses.
Check the network settings of the Sidepanel-PC:
IP Address 192.168.0.xxx
Subnet Mask 255.255.255.0.
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DD35 / XtenDD / HD
Service Information SI-R-2002-013
6. Unspecific Error Messages
Sometimes error messages can appear at the Diagnoses menu:
Examples:
DS0200.23B Temperature Sensor not accessible
Temperature too high 147 degree
Microprocessor over temperature Ebox 147 degrees centigrade
temperature sensor unavailable Ebox
In connection with the LAN communication problem the reliability of the diagnosis
has also be improved by the above mentioned Indices of controller boards, in
addition with the software V4.0.x. If this kind of problem appears please make sure
whenever possible (if the installed software is already any >3.x.x version) to update
the operating software to version V4.0.x.
7. How to Find Out the Hardware Index
The hardware index of the board is located at:
a printed label on the solder or component side of the PCB indicated by IDX: ...
close to board type indications and parts numbers. Additional yellow label (if
exists) completes the index indication
one of the ejectors; its indicated by figures of a little plastic plug (only older
boards)
RY 2156 / RY 3156 (soldering side) RC 2370
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Service Information SI-R-2002-013
DD35 / XtenDD / HD
8. Exchange Procedure
Please order modified boards at our order desk referring to that Service-Information.
When returning the controller board it is absolutely necessary to indicate the installed
operation software.
The Technical Support in Weiterstadt asks to report back at which switchers the
exchange was carried out.
Please make sure that always the Panel- and the E-Box Controller will be ordered
and exchanged in pairs.
In connection with any exchange of boards please pay attention also the issue
described in Service-information SI-R-2001-006 (red dot mark at i960 chip).
Attention:
Electrostatically sensitive devices on the p.c. boards.
Observe the precaution for handling.
8 20.12.02