Page 1 Service Manual RTX130B QAM & VSB RF Signal Generator 071-1935-03 Warning The servicing instructions are for use by qualified personnel only. To avoid personal injury, do not perform any servicing unless you are qualified to do so. Refer to all safety summaries prior to performing service.
Page 2 Copyright © Tektronix. All rights reserved. Licensed software products are owned by Tektronix or its subsidiaries or suppliers, and are protected by national copyright laws and international treaty provisions. Tektronix products are covered by U.S. and foreign patents, issued and pending. Information in this publication supercedes that in all previously published material.
Page 3 Tektronix, shipping charges prepaid, and with a copy of customer proof of purchase. Tektronix shall pay for the return of the product to Customer if the shipment is to a location within the country in which the Tektronix service center is located.
Page 5 ............RTX130B QAM & VSB RF Signal Generator Service Manual...
Page 6 ........RTX130B QAM & VSB RF Signal Generator Service Manual...
Page 7: Table Of Contents
Figure 3-21: IP Playout Configuration dialog box ....3-42 Figure 3-22: RTX130B MPEG Player display with 40.000000 Mbps 3-43 RTX130B QAM & VSB RF Signal Generator Service Manual...
Page 8 ......6- -3 Figure 6-2: RTX130B interconnect diagram ....6- -5 RTX130B QAM & VSB RF Signal Generator Service Manual...
Page 9 ......... 7-13 RTX130B QAM & VSB RF Signal Generator Service Manual...
Page 10 ......Table 4-4: Tools required for module removal ....RTX130B QAM & VSB RF Signal Generator Service Manual...
Page 11 Do Not Operate in an Explosive Atmosphere. Keep Product Surfaces Clean and Dry. Provide Proper Ventilation. Refer to the manual’s installation instructions for details on installing the product so it has proper ventilation. RTX130B QAM & VSB RF Signal Generator Service Manual...
Page 12 CAUTION indicates a hazard to property including the product. Symbols on the Product. The following symbols may appear on the product: CAUTION WARNING Protective Ground Refer to Manual High Voltage (Earth) Terminal viii RTX130B QAM & VSB RF Signal Generator Service Manual...
Page 13 Disconnect power, remove battery (if applicable), and disconnect test leads before removing protective panels, soldering, or replacing components. To avoid electric shock, do not touch exposed connections. RTX130B QAM & VSB RF Signal Generator Service Manual...
Page 14 Service Safety Summary RTX130B QAM & VSB RF Signal Generator Service Manual...
Page 15 This product has been classified as Monitoring and Control equipment, and is Substances outside the scope of the 2002/95/EC RoHS Directive. This product is known to contain lead, cadmium, mercury, and hexavalent chromium. RTX130B QAM & VSB RF Signal Generator Service Manual...
Page 16 Environmental Considerations RTX130B QAM & VSB RF Signal Generator Service Manual...
Page 17 Preface This is the service manual for the RTX130B QAM & VSB RF Signal Generator. This manual contains information needed to service an RTX130B to the module level. Manual Structure This manual is divided into sections, such as Specifications and Theory of Operation.
Page 18 Modules Throughout this manual, any replaceable component, assembly, or part of the RTX130B is referred to generically as a module. In general, a module is an assembly (like a circuit board), rather than a component (like a resistor or an integrated circuit).
Page 19 QAM & VSB RF Signal Generator, as well as general information critical to safe and effective servicing. To prevent personal injury or damage to the RTX130B, consider the following before attempting service: H The procedures in this manual should be performed only by a qualified service person.
Page 20 Whether providing warranty repair service or any of the other services listed below, Tektronix service technicians are well trained to service the RTX130B. They have access to the latest information on improvements to the RTX130B as well as the latest new options.
Page 21 Specifications...
Page 23 The RTX130B QAM & VSB RF Signal Generator generates QAM and 8VSB modulated signals that are compliant with the DVB-C/ITU-T J.83 Annex A/B/C and ATSC standards. In addition to the RF signal output feature, the RTX130B records and plays MPEG-2 transport streams that are compliant with ATSC, DVB, and ARIB standards.
Page 24 H Stream replication (IP) with some attributes of hte stream incremented by a certain value The RTX130B includes the ReMux application software that provides the capability to create a transport stream of super frame structure defined in the ISDB-S systems from an MPEG2 transport stream.
Page 25 Table 1-4 on page 1-13. H The RTX130B must have a warm-up period of at least 20 minutes. H The RTX130B must be operating at an ambient temperature between +5 _C to +40 _C, unless otherwise noted.
Page 26: Table 1-1: Functional Specifications
Input impedance, typical 50 Ω Reference input Frequency 8.129698 MHz, 10 MHz, and 27 MHz Input level, typical Sine wave: 0 ± 6 dBm Square wave: 0.5 Vp-p to 3.0 Vp-p Clock input RTX130B QAM & VSB RF Signal Generator Service Manual...
Page 27: Output Level
>3.5 V (maximum input voltage: 7 V) Low level <0.8 V Output level High level >2.2 V (with 50 Ω termination) Low level <0.8 V (with 50 Ω termination) Output impedance 50 Ω RTX130B QAM & VSB RF Signal Generator Service Manual...
Page 28 Data rate 256 Kbps to 214 Mbps Pin assignments DCLK 3 to 10 DATA 7 to DATA 0 DVALID PSYNC Shield DCLK 16 to 23 DATA 7 to DATA 0 DVALID PSYNC RTX130B QAM & VSB RF Signal Generator Service Manual...
Page 29 ASI: < - - 17 dB (5 MHz to 270 MHz) into 75 Ω load SMPTE310M: < - - 17 dB (5 MHz to 38.785316 MHz) into 75 Ω load Data format Accepts both byte and packet modes. RTX130B QAM & VSB RF Signal Generator Service Manual...
Page 30 RS (204, 188) Roll off: 0.13 ITU-T J.83 Annex C-JCTEA The following parameters conform to the standard: Symbol rate: 5.274 Msps Modulation: 64QAM Outer cording: RS (204, 188) Roll off: 0.13 RTX130B QAM & VSB RF Signal Generator Service Manual...
Page 31 EVM (ITU-T J.83 Annex B) 256QAM: <0.8% (RMS), 64QAM: <0.9% (RMS) (IF frequency: 36 MHz) EVM (ITU-T J.83 Annex C 64QAM: <0.9% (RMS) and Annex C for JCTEA) (symbol rate: ≥1 Msps, IF frequency: 36 MHz) RTX130B QAM & VSB RF Signal Generator Service Manual...
Page 32 Number of connectors Pin assignments - - DATA +DATA LAN interface 10/100/1000 Base-T Ethernet interface Connector type RJ45 Pin assignments MDI_0+ MDI_2- - MDI_0- - MDI_1- - MDI_1+ MDI_3+ MDI_2+ MDI_3- - 1-10 RTX130B QAM & VSB RF Signal Generator Service Manual...
Page 33 Maximum power 180 VA Maximum current 1.3 A Main fuse data 5 A Time- - delayed, 250 V (not operator replaceable) 2 A Time- - delayed, 250 V (not operator replaceable) 1-11 RTX130B QAM & VSB RF Signal Generator Service Manual...
Page 34: Figure 1-1: Timing Diagram Of The Spi Interface
T/2  T/10 DCLK* Input clock pulse width Output data delay T/2  T/10 DATA 0- - 7 DCLK* Input data hold time Figure 1-1: Timing diagram of the SPI interface 1-12 RTX130B QAM & VSB RF Signal Generator Service Manual...
Page 35: Table 1-3: Mechanical Characteristics
(2.28 Grms), 5 Hz to 500 Hz, 10 min, three axes Shock Non-operating 294 m/s (30 G), half-sine, 11 ms duration Installation requirements Power dissipation 100 W maximum. Maximum line current is 1.3 A at 50 Hz 1-13 RTX130B QAM & VSB RF Signal Generator Service Manual...
Page 36: Table 1-5: Certifications And Compliances
Control, and Laboratory Use Australia/New Zealand Declaration Complies with EMC provision of Radio Communications Act per the following standard(s): of Conformity - - EMC AS/NZS 2064.1/2 Industrial, Scientific, and Medical Equipment: 1992 1-14 RTX130B QAM & VSB RF Signal Generator Service Manual...
Page 37 Equipment type: Test and Measuring Installation Category II (as defined in IEC 61010-1, Annex J) Pollution Degree 2 (as defined in IEC 61010-1) Safety Class I - - grounded product 1-15 RTX130B QAM & VSB RF Signal Generator Service Manual...
Page 38 Specifications 1-16 RTX130B QAM & VSB RF Signal Generator Service Manual...
Page 39 Theory of Operation...
Page 41 Theory of Operation This section describes the basic operation of the major circuit blocks or modules in the RTX130B. The Diagrams section, beginning on page 6-1, includes a block diagram and an interconnect diagram. A12 Main Board The A12 Main board consists of the following blocks: PCI Interface The PCI interface consists of a PCI target and a PCI master.
Page 42 The interrupt controller sends the following interruption signals to the CPU: Play FIFO empty, Record FIFO full, external trigger, 10 Hz, Playout DMA transfer finished, and Record DMA transfer finished. These interruptions can be disabled by the RTX130B application software. At power on, all interruptions are disabled. TS Clock Generator The TS clock generator consists of a VCO (Voltage Control Oscillator), phase detector, frequency divider.
Page 43 (7 V to 11.5 V). IEEE1394b Interface The IEEE1394 interface consists of the 1394b link-layer device (U110), cable transcriver/arbiter (U120), oscillator (Y100), serial EEPROM (U140), regulators (U130 and U230), and IEEE1394b connector (J140). RTX130B QAM & VSB RF Signal Generator Service Manual...
Page 44 J.83 Annex A, B, C/C-JCTEA, or ATSC 8 VSB modulator. SRAM U13 is a 128 K by 36 bit synchronous-pipelined burst SRAM. The J.83 Annex B modulator uses the SRAM for interleave storage, but other modulators do not use it. RTX130B QAM & VSB RF Signal Generator Service Manual...
Page 45 Low Pass Filter The low pass filter is connected to the output of AD9857. It is a 7th order elliptic filter and removes Nyquist images. RTX130B QAM & VSB RF Signal Generator Service Manual...
Page 46 R302 is not installed, so the adjustment has no effect and the backlight is at maximum brightness. USB Ports There are two USB connectors on the board that are connected through a cable to the USB 2.0 interface connector on the CPU board. RTX130B QAM & VSB RF Signal Generator Service Manual...
Page 47 J10 and J11. A40 AC Distributor Board The A40 AC Distributor board supplies standby power (5VSB) to the SBC and the ATX power control circuit on the A20 Backplane board. RTX130B QAM & VSB RF Signal Generator Service Manual...
Page 48 Theory of Operation RTX130B QAM & VSB RF Signal Generator Service Manual...
Page 49 Performance Verification...
Page 51: Figure 3-1: Pin Connections For A Crossover Ethernet Cable
MTS400. Use one of the following methods to connect the RTX130B to your PC/MTS400: H If you are connecting the RTX130B directly to a single PC, use a crossover Ethernet cable to connect between the LAN port on the RTX130B and the Ethernet port on the PC.
Page 52: Figure 3-2: Network Connections Window
You can connect them to either of the connectors. 2. Select File > Minimize or File > Exit to close the RTX130B MPEG player. The Windows XP desktop appears. 3. Select Settings > Control Panel from the Start menu to display the Control Panel window.
Page 53: Figure 3-3: Local Area Connection Status Dialog Box
Figure 3-4: Local Area Connection Properties dialog box 7. In the network component field, select Internet Protocol (TCP/IP). 8. Click the Properties button. The Internet Protocol (TCP/IP) Properties dialog box appears. RTX130B QAM & VSB RF Signal Generator Service Manual...
Page 54: Figure 3-5: Internet Protocol (Tcp/Ip) Properties Dialog Box
Refer to the user documentation supplied with your server OS for detailed information about DHCP server functions. NOTE. Under some network environments, the RTX130B may not be able to obtain the IP address automatically from a DHCP server. In this case, you need to enter the appropriate address value in each submenu item.
Page 55 When the DHCP Server Is Not in the Network. If the DHCP server is not in the network, perform the following procedure to set the network parameters. 11. If you connect the RTX130B directly to a single PC/MTS400: a. In the dialog box, select Use the following IP address.
Page 56: Table 3-1: Equipment Required For Performance Verification
MTM400 option(s) required depends on the modulation option(s) installed in the instrument to be tested as follows: RTX130B Option M1: Option QA RTX130B Option M2: Option QB2 RTX130B Option M3: Option QC RTX130B Option M4: Option VS RTX130B QAM & VSB RF Signal Generator Service Manual...
Page 57: Table 3-2: Rtx130B Test Record
Table 3-2: RTX130B test record Serial Number: Cal Date: Temperature: Humidity: Performance Test Minimum Measured Maximum Internal Clock Frequency 26.999924 MHz 27.000076 MHz Test record limits are based on the SMPTE 310M frequency accuracy requirement. RTX130B QAM & VSB RF Signal Generator Service Manual...
Page 58 RTX130B is operating in an environment that is within the operating limits described in Table 1-4 on page 1-13. In addition, the RTX130B and the test equipment must be warmed up for at least 20 minutes to ensure accurate test results.
Page 59: Figure 3-6: Equipment Connection For Checking The Internal Clock
Figure 3-6: Equipment connection for checking the internal clock output level 2. Select Play > Others on the RTX130B to open the Others dialog box. 3. In the dialog box, select the Ext Trigger BNC button to open the Ext Trigger BNC dialog box.
Page 60: Figure 3-7: Equipment Connection For Checking The Internal Clock
CHANNEL1 ..Coupling: DC Impedance: 50 Trigger: AUTO TRIG ON 9. Record the frequency counter reading in the test record. (See page 3-7.) 3-10 RTX130B QAM & VSB RF Signal Generator Service Manual...
Page 61: Figure 3-8: Equipment Connection For Checking The Play Operation- Spi Interface
Performance Verification 10. In the Ext Trigger BNC dialog box, change BNC IN/OUT to Input. 11. Disconnect the BNC cable from the RTX130B and frequency counter. SPI Interface This test verifies that transport stream data is correctly played from and recorded through the SPI In/Out connector on the RTX130B.
Page 62 ..E:\MTXRTX_Test streams\Record_Files\ SPI214Mbps 7. Press the Play/Pause button on the RTX130B to start playing the test40.TRP file. 8. Verify that the hierarchic view is displayed on the MPEG analyzer screen. In addition, verify that the bit rate is 214 Mbps and the packet size is 188 bytes.
Page 63 18. Click the PLAY button on the MPEG Analyzer to start playing the SPI214Mbps.trp file. 19. Verify that the hierarchic view is displayed on the RTX130B screen. In addition, verify that the bit rate display is 214 Mbps and the packet size display is 188 bytes.
Page 64 1. Use a 50 Ω BNC cable to connect the Clock/Ref In connector on the RTX130B to the Ch1 connector on the function generator. See Figure 3-9. 2. Use the 50 Ω BNC cable to connect the Trig In/Out connector on the RTX130B to the Ch2 connector on the function generator.
Page 65: Frequency
6. Open the test64.TRP file on the RTX130B. a. Select File > Open in the Play screen to open the Select File dialog box. b. In the dialog box, select the test64.TRP file. 3-15 RTX130B QAM & VSB RF Signal Generator Service Manual...
Page 66 8 MHz 17. Change the output frequency of the function generator to 32 MHz. 18. Select Play > Clock on the RTX130B to open the Clock dialog box. 19. In the dialog box, select Ext S Clk. 20. Repeat step 15 and verify that all items in the Priority 1 row are green.
Page 67 Performance Verification 21. Press the Stop button on the RTX130B to stop the stream output. 22. Select Play > Clock on the RTX130B to open the Clock dialog box. 23. In the dialog box, select Internal. 24. Press the On button of the Ch1 output on the function generator to stop the signal output.
Page 68: Figure 3-10: Equipment Connection For Checking The Output Signal- Asi Interface
Flower.trp file Checking the Output Signal. 1. Use the 75 Ω BNC cable and the 75 Ω signal adapter to connect the ASI/SMPTE Output connector on the RTX130B to the oscilloscope CH1 input. See Figure 3-10. Oscilloscope (TDS5104B) RTX130B rear panel 75 Ω...
Page 69 4. Press the Play/Pause button to start playing the test40.TRP file. 5. Use the oscilloscope to measure that the amplitude, rise and fall times are as follows: Amplitude: 720 mV to 880 mV Rise and fall time: ≤ 1.2 ns 3-19 RTX130B QAM & VSB RF Signal Generator Service Manual...
Page 70: Figure 3-11: Equipment Connections For Checking The Asi Play
SPI/ASI/310M menu Input Port . . . BNC Port . . . File menu Save Mode Over write Save ..E:\MTXRTX_Test streams\Record_Files\ ASI214Mbps.trp 3-20 RTX130B QAM & VSB RF Signal Generator Service Manual...
Page 71: Figure 3-12: Equipment Connection For Checking The Asi Record
13. Click the Record button on the MPEG Player application to record the file. 14. After recording is completed, press the Stop button on the RTX130B. 15. Disconnect the 75 Ω BNC cable from the RTX130B and MPEG analyzer. Checking the ASI Record Operation.
Page 72 Performance Verification 17. Press the Record button on the RTX130B to display the Record screen. 18. On the RTX130B, make the following settings: Record menu Source ..QAM/VSB Record size ..
Page 73: Figure 3-13: Equipment Connection For Checking The Recorded File- Asi Interface
75 Ω BNC cable Figure 3-13: Equipment connection for checking the recorded file- ASI interface 30. Press the Play/Pause button on the RTX130B to display the Play screen. 31. Select Play > Update > On. 32. Open the ASI214Mbps file on the RTX130B.
Page 74: Figure 3-14: Equipment Connection For Verifying The 8Vsb Play
NOTE. Ignore Program 3 and PID 120 (0x78) errors in the hierarchical view because these are caused by the original test40.TRP file. 38. Press the Stop button on the RTX130B to stop the stream output. 39. Disconnect the 75 Ω BNC cable from the RTX130B and MPEG analyzer.
Page 75 ..RF Out ..46. Press the Play/Pause button on the RTX130B to start playing the Flower.trp file. 47. Verify that the hierarchic view is displayed on the MPEG analyzer screen. In addition, verify that the bit rate is 19.392 Mbps and packet size is 188 bytes.
Page 76: Figure 3-15: Equipment Connection For Verifying The 8Vsb Record
RTX130B rear panel 75 Ω BNC cable Figure 3-15: Equipment connection for verifying the 8VSB record operation 52. Press the Record button on the RTX130B to display the Record screen. 53. On the RTX130B, make the following settings: Record menu Source .
Page 77: Figure 3-16: Equipment Connection For Verifying The Recorded File- Smpte310M Interface
58. Click the Play button on the MPEG analyzer to start playing the S310M.trp file. 59. Verify that the hierarchic view is displayed on the RTX130B screen. In addition, verify that the bit rate is 19.392 Mbps and packet size is 188 bytes.
Page 78 74. Delete the Record_Files folder on the D: drive of the RTX130B. RF Output This test verifies the RF output. If the RTX130B has more than one modulation option, then repeat this procedure for each option. The following equipment is...
Page 79 45 dBmV Output ....9. Press the Play/Pause button on the RTX130B to start playing the Flower.trp file. 3-29 RTX130B QAM & VSB RF Signal Generator Service Manual...
Page 80: Figure 3-17: Equipment Connection For Checking The Output For
Checking the Output for Errors. 10. Use the 75 Ω BNC cable, two 20 dB attenuators, and BNC(Fe)-to-F(Ma) adapter to connect the RF Out connector on the RTX130B to the RF input on the MPEG transport stream monitor. See Figure 3-17.
Page 81: Interface
....normal Tuner Phase Noise ..normal Signal Detection ... 3-31 RTX130B QAM & VSB RF Signal Generator Service Manual...
Page 82: Figure 3-18: Tests Grouped By Priority 1 2 3 Screen (Annex A)
(except for disabled or not applicable tests), right click the Transport Stream Available status icon, and then select Reset. Within a minute, all status icons turn green. 14. Click the Input Card button on the Configuration screen. 3-32 RTX130B QAM & VSB RF Signal Generator Service Manual...
Page 83 EVM (8 VSB): < 4.5% 16. Change RF Center Frequency to 450 MHz on the RTX130B. a. Select QAM/VSB > Modulation to open the Modulation dialog box. b. In the dialog box, set the RF Center Frequency to 450 MHz.
Page 84: Figure 3-19: Equipment Connection For Checking The Ieee1394B
IEEE1394b cable (9 pin- - 9 pin)) test40.TRP file 1. Use the IEEE1394b cable to connect the IEEE1394b connector on the RTX130B to the IEEE1394b hard disk drive. See Figure 3-19. RTX130B rear panel IEEE1394b hard disk drive IEEE1394b cable Figure 3-19: Equipment connection for checking the IEEE1394b interface 2.
Page 85 H Interrupt Moderation Rate: Off H Jumbo Frames: 16128 H Link Speed and Duplex: Auto- -negotiate 1000Mbps NOTE. If RTX130B MPEG system is connected to 100 Mbps network, select “Auto Detect” for Link Speed and Duplex option. H Receive Descriptors: 2048 3-35 RTX130B QAM &...
Page 86 2. Select Windows Firewall/Internet Connection Sharing (ICS) to open the dialog box. Check if the Startup type is set to Disabled. 3. Select Automatic Updates to open the dialog box. Check if the Startup type is set to Disabled. 3-36 RTX130B QAM & VSB RF Signal Generator Service Manual...
Page 87 Performance Verification 4. Select IIS admin to open the dialog box. Check if the Startup type is set to Disabled. 3-37 RTX130B QAM & VSB RF Signal Generator Service Manual...
Page 88 Perform this procedure to check if the automatic Java updates are disabled: 1. Click Control Panel > Java. 2. Select the Update tab and check if the Check for Updates Automatically check box is unselected. 3-38 RTX130B QAM & VSB RF Signal Generator Service Manual...
Page 89 3. Select MonitorModeEnabled DWORD Value that you created. 4. Double- -click the DWORD Value to open the Edit DWORD Value dialog box. Check if the Value data is set to 1. 3-39 RTX130B QAM & VSB RF Signal Generator Service Manual...
Page 90: Figure 3-20: Equipment Setup For Option Gbe Performance
Checking Option GbE performance. Perform this procedure to check that the GbE Gigabit Ethernet interface of RTX130B is operating properly. This test checks that the transport stream data is correctly output from the RTX130B instrument. 1. Connect the equipment as shown in Figure 3-20.
Page 91 Performance Verification 3. Configure the DUT RTX130B system with the following settings for GbE testing: a. Double-click the RTX130B MPEG player icon on the desktop to start the player. MPEGPlayer.lnk b. From the File menu, select Open > Look in (dropdown menu) > Local Disk (D) >...
Page 92: Figure 3-21: Ip Playout Configuration Dialog Box
Transmission Mode: Multicast Destination IP Address: 239.1.1.1 Protocol: Destination Port: 1234 Figure 3-21: IP Playout Configuration dialog box Now the RTX130B MPEG Player should appear as shown in Figure 3-22. 3-42 RTX130B QAM & VSB RF Signal Generator Service Manual...
Page 93: Figure 3-22: Rtx130B Mpeg Player Display With 40.000000 Mbps
Performance Verification Figure 3-22: RTX130B MPEG Player display with 40.000000 Mbps 4. Click the Start button to start the stream playout. 5. Double-click the MTS400 Series system’s TS Compliance Analyser desktop icon TS Compliance Analyser.lnk to launch the TS Compliance Analyser application (TSCA). This starts with the Open Transport Stream dialog box as shown in Figure 3-23.
Page 94 6. Select the Real-time Analysis icon on the left of the Open Transport Stream dialog. 7. Select IP from the Interfaces dropdown menu in the Open Transport Stream display as shown in Figure 3-24. 3-44 RTX130B QAM & VSB RF Signal Generator Service Manual...
Page 95 NOTE. You may have to click the + button below the Configurations list to make the settings pane change. The Browse button, which is needed for the next step, will then be active. 3-45 RTX130B QAM & VSB RF Signal Generator Service Manual...
Page 96 Performance Verification Figure 3-25: Interface settings 9. Click the Browse button to open the Browse for IP Flow dialog box as shown in Figure 3-26. 3-46 RTX130B QAM & VSB RF Signal Generator Service Manual...
Page 97 Performance Verification 10. Select Tektronix LP1500 LAN Interface Port 4 from the Browse Device drop down menu. 11. In the Browse for UDP flow dialog box, make these selections (see Figure 3-26): a. Select the Passive mode radio button. b. In the Detected UDP Flows pane, select the IP stream with a Destination IP Address of 239.1.1.1.
Page 98 Performance Verification 12. Allow the DUT RTX130B MPEG system to loop at least three times. 13. On the MTS400 Series MPEG system, verify that the TS Availability and Sync indicators, in the bottom left corner of the Compliance Analyzer display, remain green.
Page 99 Performance Verification 15. Disconnect the DUT RTX130B MPEG system from the test setup and turn it off using the front panel POWER switch. After the Windows shutdown completes, unplug the power cord from the system. 16. Disconnect the MTS400 Series MPEG system from the test setup: a.
Page 100 Performance Verification The status bar displays the TS bit rate as 160.0000000 Mbps. Figure 3-29: RTX130B MPEG Player display with maximum bit rate 3. Perform the steps 5 through 15 listed in the Checking Option GbE perfor- mance section on page 3-40.
Page 101 Performance Verification Figure 3-30: MTS400 Series TS Compliance Analyzer display for maximum bit rate 5. Disconnect the DUT RTX130B MPEG system from the test setup and turn it off using the front panel POWER switch. After the Windows shutdown completes, unplug the power cord from the system.
Page 102 Performance Verification 3-52 RTX130B QAM & VSB RF Signal Generator Service Manual...
Page 103 Maintenance...
Page 105 H Section 3, Performance Verification, contains procedures that may be useful in isolating problems to modules by testing the RTX130B performance. H Section 6, Diagrams, contains a block diagram using individual modules as blocks and an interconnection diagram showing connections between the modules.
Page 106 CAUTION. Static discharge can damage any semiconductor component in the RTX130B. Preventing ESD When performing any service that requires internal access to the RTX130B, adhere to the following precautions to avoid damaging internal modules and their components due to electrostatic discharge (ESD).
Page 107 RTX130B adjustment. General Care The cabinet helps keep dust out of the RTX130B, and is needed to meet EMI and cooling requirements. The cabinet should be in place when operating the RTX130B. The front cover protects the front panel and display from dust and damage.
Page 108: Table 4-1: External Inspection Check List
Cleaning Procedure — Exterior. To clean the RTX130B exterior, perform the following steps: 1. Remove loose dust on the outside of the RTX130B with a lint-free cloth. 2. Remove remaining dirt with a lint-free cloth dampened in a general purpose detergent-and-water solution.
Page 109: Table 4-2: Internal Inspection Check List
Maintenance Inspection — Interior. To access the inside of the RTX130B for inspection and cleaning, refer to the Removal and Installation Procedures in this section. Inspect the internal portions of the RTX130B for damage and wear, using Table 4-2 as a guide. Defects found should be repaired immediately.
Page 110 STOP. If, after performing steps 1 and 2, a module is clean upon inspection, skip the remaining steps. 3. If steps 1 and 2 do not remove all the dust or dirt, the RTX130B may be spray washed using a solution of ethyl alcohol by performing steps 4 through 8.
Page 111 WARNING. Before performing this or any other procedure in this manual, read the Safety Summary found at the beginning of this manual. Also, to prevent possible damage to components of the RTX130B, read Preventing ESD in this section. This subsection contains the following items: H Preparatory information that you need to properly perform the procedures that follow.
Page 112: Table 4-3: Summary Of Procedures
First read over the Summary of Procedures that follows to understand how the procedures are grouped. Then read Equipment Required for a list of the tools needed to remove and install modules in the RTX130B. If you are removing a module for service, begin by performing the procedure Access Procedure (page 4-14).
Page 113: Table 4-4: Tools Required For Module Removal
Removal and Installation Procedures Required Equipment. Most modules in this RTX130B can be removed with a screwdriver handle mounted with a size T-10 Torx screwdriver tip. Use this tool whenever a procedure step instructs you to remove or install a screw unless a different size screwdriver is specified in that step.
Page 114 Removal and Installation Procedures RTX130B Orientation In this manual, procedures refer to “front,” “rear,” and “top” of the RTX130B. Figure 4-1 shows how the sides are referenced. Figures 4-2 through 4-4 show the modules that make up the RTX130B. Figure 4-1: RTX130B orientation 4-10 RTX130B QAM &...
Page 115 LCD inverter board Front-panel Emat Processor board (Play/Stop/Record) Front-panel bracket Keypad board LCD module insulator Keypad board LCD glass shield Emat (all others) Front cover Front panel Figure 4-2: External modules 4-11 RTX130B QAM & VSB RF Signal Generator Service Manual...
Page 116 Removal and Installation Procedures Printer connector Blank panel A20 PCI Backplane board A180 QAM Modulator board A12 Main board CPU board Figure 4-3: Board modules 4-12 RTX130B QAM & VSB RF Signal Generator Service Manual...
Page 117 Removal and Installation Procedures 12 V main power supply RFI filter Hard disk drive External fan retainer A40 AC Distributor board Hard disk drive Internal fan Figure 4-4: Internal modules 4-13 RTX130B QAM & VSB RF Signal Generator Service Manual...
Page 118 A180 QAM Modulator board p.4-23 A12 Main board p.4-23 the module CPU board p.4-23 in Figure A20 PCI Backplane board p.4-24 4-3 ? Printer connector p.4-25 Figure 4-5: Guide to removal procedures 4-14 RTX130B QAM & VSB RF Signal Generator Service Manual...
Page 119 Locate the cabinet in the locator diagram External modules, Figure 4-2, page 4-11. 2. Orient the instrument: Set the RTX130B so its bottom is down on the work surface and its rear is facing you. 3. Use a screwdriver with a T-15 Torx tip to remove the two screws securing the cabinet to the RTX130B.
Page 120 Locate the right-side cover in the locator diagram External modules, Figure 4-2, page 4-11. 2. Orient the instrument: Set the RTX130B so its left side is down on the work surface and its front is facing you. 3. Use a screwdriver with a T-10 Torx tip to remove the seven screws securing the right-side cover to the top and bottom of the chassis.
Page 121 Locate the left-side cover in the locator diagram External modules, Figure 4-2, page 4-11. 2. Orient the instrument: Set the RTX130B so its right side is down on the work surface and its front is facing you. 3. Use a screwdriver with a T-10 Torx tip to remove the six screws securing the left-side cover to the top and bottom of the chassis.
Page 122 Locate the front-panel unit in the locator diagram External modules, Figure 4-2, page 4-11. 2. Orient instrument: Set the RTX130B so its bottom is down on the work surface and its front is facing you. 3. Remove front-panel unit: See Figure 4-8.
Page 123 6. Now manually disassemble the front-panel assembly components using Figure 4-9 as a guide. Reverse the procedure to reassemble. 7. Reinstallation: Perform steps 2 through 6 in reverse order to reinstall the front-panel assembly. 4-19 RTX130B QAM & VSB RF Signal Generator Service Manual...
Page 124 LCD inverter board Front-Panel Processor board Front-panel bracket Emat (Play/Stop/Record) LCD module Keypad board insulator Keypad board LCD glass shield Emat (all others) Front cover Figure 4-9: Disassembly of front-panel assembly 4-20 RTX130B QAM & VSB RF Signal Generator Service Manual...
Page 125 Retainers H You need a screwdriver with a T-10 Torx tip. 2. Orient the instrument: Set the RTX130B so its bottom is down on the work surface and its right side is facing you. 3. Remove the board retainers: See Figure 4-10 on page 4-22.
Page 126 A20 PCI Backplane board Printer connector A180 QAM Modulator board A12 Main board CPU board Figure 4-10: A180 QAM Modulator board, A12 Main board, CPU board, and A20 PCI Backplane board removal 4-22 RTX130B QAM & VSB RF Signal Generator Service Manual...
Page 127 Locate the A180 QAM Modulator board in the locator diagram Board modules, Figure 4-3, page 4-12. 2. Orient the instrument: Set the RTX130B so its bottom is down on the work surface and its right side is facing you.
Page 128 Locate the A20 PCI Backplane board in the locator diagram Board modules, Figure 4-3, page 4-12. 2. Orient the instrument: Set the RTX130B so its bottom is down on the work surface and its right side is facing you.
Page 129 Locate the connector in the locator diagram Board modules, Figure 4-3, page 4-12. 2. Orient the instrument: Set the RTX130B so its bottom is down on the work surface and its rear is facing you. 3. Remove the Printer connector: See Figure 4-10 on page 4-22.
Page 130 Locate the hard disk drive in the locator diagram Internal modules, Figure 4-4, page 4-13. 2. Orient the instrument: Set the RTX130B so its bottom is down on the work surface and its left side is facing you. 3. Remove the hard disk drive: See Figure 4-11 on page 4-27.
Page 131 Removal and Installation Procedures Hard disk drive unit Plate Hard disk drive retainer Figure 4-11: Hard disk drive removal 4-27 RTX130B QAM & VSB RF Signal Generator Service Manual...
Page 132: Verification
4. Reinstallation: Perform step 3 in reverse order to reinstall the internal fan. 5. Remove the external fan: See Figure 4-12 on page 4-29. a. Set the RTX130B so its bottom is down on the work surface and its rear is facing you.
Page 133 Removal and Installation Procedures 6. Reinstallation: Perform step 5 in reverse order to reinstall the external fan. Internal fan External fan Figure 4-12: Internal and external fan removal 4-29 RTX130B QAM & VSB RF Signal Generator Service Manual...
Page 134 Locate the 12 V main power supply in the locator diagram Internal modules, Figure 4-4, page 4-13. 2. Orient the instrument: Set the RTX130B so its bottom is down on the work surface and its left side is facing you.
Page 135 Locate the RFI filter in the locator diagram Internal modules, Figure 4-4, page 4-13. 2. Orient the instrument: Set the RTX130B so its bottom is down on the work surface and its rear is facing you. 3. Remove the RFI filter: See Figure 4-14.
Page 136 Pull the RFI filter away from the chassis. 4. Reinstallation: Perform step 3 in reverse order to reinstall the RFI filter. To J110 on the A40 AC Distributor board RFI filter Figure 4-14: RFI filter removal 4-32 RTX130B QAM & VSB RF Signal Generator Service Manual...
Page 137 : Onboard FDC Controller : Disabled Onboard Serial Port 2 : Disabled : Disabled Onboard Serial Port 4 PC Health Status : Disabled CPU Warning Temperature : Disabled Shutdown Temperature 4-33 RTX130B QAM & VSB RF Signal Generator Service Manual...
Page 138 4. Use the arrow keys to select Save & Exit Setup, and then press the Enter key. The Save to CMOS and Exit (Y/N)? message appears. 5. Enter Y, and press the Enter key. 4-34 RTX130B QAM & VSB RF Signal Generator Service Manual...
Page 139 Troubleshooting This subsection contains troubleshooting trees designed to isolate faulty modules in the RTX130B. Troubleshooting Trees Figures 4-15 through 4-24 show the troubleshooting procedure for the RTX130B. 4-35 RTX130B QAM & VSB RF Signal Generator Service Manual...
Page 140 A12 Main board and the A180 QAM Modulator board H Replace the A20 PCI Backplane board. displayed in the Status dialog box? H Replace the A180 QAM Modulator board. Figure 4-15: Troubleshooting procedure (1) 4-36 RTX130B QAM & VSB RF Signal Generator Service Manual...
Page 141 Can a stream data slot. be acquired from the ASI/SMPTE Input connector? H Replace the A180 QAM Modulator board. Figure 4-16: Troubleshooting procedure (2) 4-37 RTX130B QAM & VSB RF Signal Generator Service Manual...
Page 142 RF Output: On BNC Port: ASI Can an RF modulated Replace the A180 QAM Modulator signal be output from the RF board. Out connector? Done. Figure 4-17: Troubleshooting procedure (3) 4-38 RTX130B QAM & VSB RF Signal Generator Service Manual...
Page 143 A180 QAM Modulator board from the +5 V, +3.3 V, +12 V, and A20 PCI Backplane board. - - 12 V correct ? Replace the CPU board. Figure 4-18: Troubleshooting procedure (4) 4-39 RTX130B QAM & VSB RF Signal Generator Service Manual...
Page 144 H If the other voltage is faulty, replace the A20 PCI Backplane board. Change the A12 Main board or the A180 QAM Modulator board which affects the power supply. Figure 4-19: Troubleshooting procedure (5) 4-40 RTX130B QAM & VSB RF Signal Generator Service Manual...
Page 145 Does the backlight H Replace the Inverter board. light ? H Replace the Front-Panel Processor board. H Check the 259-A002-00 cable. H Replace the LCD module. Figure 4-20: Troubleshooting procedure (6) 4-41 RTX130B QAM & VSB RF Signal Generator Service Manual...
Page 146 Enable check box in box. the Others dialog box selected? Can a stream data be output from the SPI In/Out connector? Done. Replace the A12 Main board. Figure 4-21: Troubleshooting procedure (7) 4-42 RTX130B QAM & VSB RF Signal Generator Service Manual...
Page 147 SPI In/Out connector? Replace the A12 Main board. Done. Figure 4-22: Troubleshooting procedure (8) Front J220 J170 Figure 4-23: A20 PCI Backplane board view- back side 4-43 RTX130B QAM & VSB RF Signal Generator Service Manual...
Page 148 Troubleshooting Front J230 J240 Figure 4-24: A20 PCI Backplane board view- right side 4-44 RTX130B QAM & VSB RF Signal Generator Service Manual...
Page 149 System Software Recovery If the RTX130B does not boot up or is corrupted, you can recover the system software by using this recovery procedure. CAUTION. Running the recovery procedure overwrites all the contents of the hard disk drive and resets the system to the factory defaults.
Page 150 H Click Cancel and Exit to cancel the recovery process and exit from the Phoenix Recovery Pro 6 application. 5. Click the Next button of the wizard until Windows XP is installed. The system restarts after the installation of Windows XP to display the RTX130B application screen. 4-46...
Page 151 A message asking you to press Y to exit and N to continue is displayed. 4. Press Y to exit and restart the instrument. Follow these steps to restore the Windows XP and RTX130B application software using the rescue disks: 1.
Page 152 20 seconds. 3. Press 1 to proceed as soon as you see the screen. NOTE. The approximate time taken to restore the Windows XP and RTX130B application is 1 hr to 1.5 hr. 4. Press any key to turn off the instrument once the restoration is complete.
Page 153 Options...
Page 155 Options This section describes options that are available for the RTX130B. The following options are available: Options Description Modulation mode option Option M1 Adds DVB-C/ITU-T J.83 Annex A modulation mode Option M2 Adds ITU-T J.83 Annex B modulation mode Option M3 Adds ITU-T J.83 Annex C modulation mode...
Page 156 Options RTX130B QAM & VSB RF Signal Generator Service Manual...
Page 157 Diagrams...
Page 159 H Block diagram of the RTX130B H Interconnect diagram of the RTX130B Block diagram shows the modules and functional blocks in the RTX130B. Interconnect diagram shows how the modules in the RTX130B connect together. RTX130B QAM & VSB RF Signal Generator Service Manual...
Page 160 Diagrams RTX130B QAM & VSB RF Signal Generator Service Manual...
Page 161 Internal 5 V Main Power Supply Front-Panel Processor Board Inverter Board for LCD Backlight 5 V Sub Power Supply AC Distributor Board Keypad Board Figure 6-1: RTX130B block diagram 6- 3 RTX130B QAM & VSB RF Signal Generator Service Manual...
Page 162 6- 4 RTX130B QAM & VSB RF Signal Generator Service Manual...
Page 163 174-3767-01 Inverter Board for LCD J301 J120 J100 Backlight 5 V Sub Power 174-5170-00 J110 Supply AC Distributor Board 196-3499-00 Keypad Board J105 174-5188-00 Figure 6-2: RTX130B interconnect diagram 6- 5 RTX130B QAM & VSB RF Signal Generator Service Manual...
Page 164 6- 6 RTX130B QAM & VSB RF Signal Generator Service Manual...
Page 165 Replaceable Parts List...
Page 167 Replaceable Parts List This section contains a list of the replaceable modules for the RTX130B. Use this list to identify and order replacement parts. Parts Ordering Information Replacement parts are available through your local Tektronix field office or representative. Changes to Tektronix products are sometimes made to accommodate improved components as they become available and to give you the benefit of the latest improvements.
Page 168 For more information about the module exchange program, call 1-800-833-9200. Outside North America, contact a Tektronix sales office or distributor; see the Tektronix Web site for a list of offices: www.tektronix.com Module Repair and Return. You may ship your module to us for repair, after which we will return it to you.
Page 169 Using the Replaceable Parts List This section contains a list of the mechanical and/or electrical components that are replaceable for the RTX130B. Use this list to identify and order replacement parts. The following table describes each column in the parts list.
Page 170 SOFTWARE PKG;MICROSOFT WINDOWS XP PROFESSIONAL,INCLUDES SERVICE PACK 2,1-2 PROCESSOR VERSION;CERTIFICATE OF AUTHENTICITY - - 7 337- - 4346- - 00 SHIELD,ELEC:COVER,RIGHT,MTX100A,AL - - 8 211- - 0374- - 00 SCREW,MACHINE:6-32X0.25,FLH,100 DEG,STL ZN-CM1,T10 TORX RTX130B QAM & VSB RF Signal Generator Service Manual...
Page 171 Replaceable Parts List Figure 7-1: Cabinet and covers RTX130B QAM & VSB RF Signal Generator Service Manual...
Page 172 441- - 2404- - 00 CHASSIS,ASSY;MAIN,MTX100A,AL - - 26 210- - 0164- - 000 RIVET,SOLID;0.163 ODX0.415 L,PANEL RANGE HEAD STYLE,NYLON - - 27 119- - 7187- - 00 FAN 119569400 W/CABLE 18CM L(92 SQ FAN) RTX130B QAM & VSB RF Signal Generator Service Manual...
Page 173 Replaceable Parts List Front panel unit See Figure 7-4 on page 7-11 for detailed view. Figure 7-2: Internal modules (1) RTX130B QAM & VSB RF Signal Generator Service Manual...
Page 174 SCREW,MACHINE:4-40X0.25,PNH,STL ZN-CM1,T10 TORX - - 13 426- - 2624- - 00 FRAME,SECTION:TOP,MTX100A,STL - - 14 211- - 0373- - 00 SCREW,MACHINE:4-40X0.25,PNH,STL ZN-CM1,T10 TORX - - 15 343- - 1697- - 00 RETAINER:CKT BD,PCI,MTX100A,STL RTX130B QAM & VSB RF Signal Generator Service Manual...
Page 175 Replaceable Parts List A180 Figure 7-3: Internal modules (2) RTX130B QAM & VSB RF Signal Generator Service Manual...
Page 176 260- - 2834- - 00 SWITCH,KEYPAD;ELASTOMERIC FRONT PANEL MTX100B - - 18 260- - 2835- - 00 SWITCH,ELASTOMERIC,POWER AND PLAY BUTTONS;FRONT PANEL MTX100B - - 19 335- - 1595- - 00 LABEL,FRONT PANEL CONTROL,MTX100B 7-10 RTX130B QAM & VSB RF Signal Generator Service Manual...
Page 177 Replaceable Parts List Figure 7-4: Front-panel unit 7-11 RTX130B QAM & VSB RF Signal Generator Service Manual...
Page 178 - - 19 174- - 3767- - 01 CABLE,ASSEMBLY,SP;DISCRETE,BACKLIGHT,IDC,26 AWG,5.0 L,PCB,1 X 6,0.079 CTR (2MM),SHRINK WRAPPED - - 20 174- - 5266- - 00 CABLE,ASSEMBLY;RIBBON ADAPTER TO XGA DISPLAY,10 PIN,3.5IN 7-12 RTX130B QAM & VSB RF Signal Generator Service Manual...
Page 179 Replaceable Parts List Power supply Hard disk drive Figure 7-5: Cables 7-13 RTX130B QAM & VSB RF Signal Generator Service Manual...
Page 180 WFM7F05 OPTION NN RACKMOUNT KIT - - - - - - - - - - - - - - - - - - - - - - 1700F06 BLANK PANEL 7-14 RTX130B QAM & VSB RF Signal Generator Service Manual...

Tektronix RTX130B Service Manual

Quick Links

Need help?

Questions and answers

Subscribe to Our Youtube Channel

Related Manuals for Tektronix RTX130B

Summary of Contents for Tektronix RTX130B

Table of Contents