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Crystal Vision

Trouble shooting

37

DEC102SUser ManualV1.0 05/11/03

6 Trouble

shooting

Card edge monitoring

Once the start-up initialisation procedure is complete, the DEC102S can be controlled or
configured from the card edge, from an active control panel or the Statesman PC
interface. This chapter will concentrate on the card edge monitoring LEDs.

Status LEDs

Board edge LEDs provide status reporting and may be useful when fault finding.

DEC102S front view showing controls and LEDs

The following table summarises the card edge LED functions and colours:

LED
Colour

Position

Description

Green

Conf

Illuminates when board power-on configuration is complete

Yellow

Sync

Illuminates when analogue timing reference is absent. The board output will be
timed relative to the composite or Y input in 10-bit mode and a free running clock
in 8-bit mode.

Yellow

625

Illuminates when board is in 625 line mode

Green

+5V

Illuminates when the board is powered

Green

Lock

Illuminates when the composite or Y input is present

Yellow

10-bit

Illuminates when the board is 10-bit mode

Fault finding guide

The Power OK LEDs are not illuminated

Check that the frame PSU is functioning – refer to the appropriate frame manual for
detailed information

There is no video output

Check that a valid input is present (Lock LED ON) and that any cabling is intact

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Содержание DEC102S

Страница 1: ...Lion Technology Park Station Road East Whittlesford Cambridge CB22 4WL England E mail sales crystalvision tv Website www crystalvision tv Tel 44 0 1223 497049 Fax 44 0 1223 497059 DEC102S Composite or...

Страница 2: ...vel and phase adjustment 9 Timing adjustment 10 3 Using the front control panel 13 The DEC102S menu structure 16 Selecting video standard and decoder modes 17 Setting gain and black level 19 Adjusting...

Страница 3: ...33 5 2 FR1 6 FR2 12 and FR2 8 frame rear connectors 34 FR1 6 FR2 12 connections 34 FR2 8 connections 34 5 3 Module configuration 35 Loop or terminate the external reference 35 Card edge control video...

Страница 4: ...based adaptive comb It is also designed to accommodate jittery or damaged signals and will automatically switch to its tolerant 8 bit decoder mode when a non stable signal is received The main featur...

Страница 5: ...line standards have separate horizontal and vertical timing settings All these parameters are automatically maintained when power is cycled Output timing Horizontal and vertical timing adjustments ar...

Страница 6: ...04 or above An optional RS422 to RS232 converter if the PC has no RS422 ports Installing Statesman Refer to the readme and or help file on the CD before proceeding To view all application windows set...

Страница 7: ...ickly the following colour and size coding is used A module is shown present by full colour and absent by greyed colour A module is shown open by large icon size and closed by small icon A module is t...

Страница 8: ...selection 8 Bit 10 Bit decoding quality Blank or unblank the VBI interval Pedestal pass or block the NTSC pedestal Status input and reference presence Configuration Input settings Input settings are...

Страница 9: ...gain increased OFF Black level and gain settings assume no 7 5 IRE offset Note Vertical Blanking Interval data is normally present in PAL on lines 7 22 and 319 335 and in NTSC on lines 10 20 and 273...

Страница 10: ...n 8 bit mode the 10 bit adjustments are maintained and will be restored when 10 bit operation is resumed There are effectively four sets of independent gain and black level adjustments 8 bit composite...

Страница 11: ...eferences These are an external reference the composite or YC input or an internal free running clock Which of these is the active reference is dependent on the presence of an external reference or wh...

Страница 12: ...depends on this adjustment and the relative timing of the serial input and the external analogue reference When both vertical position and horizontal position are set to zero the delay through the boa...

Страница 13: ...Crystal Vision Statesman 12 DEC102SUser ManualV1 0 05 11 03...

Страница 14: ...to using the panel for the first time At power up the two line 20 character screen will display Crystal Vision followed by the firmware version number for the control panel All eight control panel ke...

Страница 15: ...press the DEVICE key to go to the Device menu The top line of the display will show Available Cards X where X is the number of cards that have responded so far to the polling request The available car...

Страница 16: ...Device menu F1 to F4 soft keys function assigned within each menu HOME moves the display to the home menu ENTER accept current selection Upward arrow used to move up the menu structure enter lock pane...

Страница 17: ...following chart shows the available DEC102S menus The actual menus available may vary slightly as software is updated The DEC102S menu tree Note Function keys and shaft encoder LEDs are illuminated wh...

Страница 18: ...s VBI data ON or OFF Decoder Mode PAL F1 selects COMP Composite or Y C F2 selects 8 bit 10 bit or Auto Filter is adaptive Comb in 10 Bit mode and Simple in 8 bit mode Decoder Mode NTSC F1 selects COMP...

Страница 19: ...gnal Press F2 to switch through AUTO 8 bit and 10 bit AUTO allows the board to switch to the appropriate bit mode based on the input signal timing stability In PAL the Filter is updated automatically...

Страница 20: ...ack level to unity values F1 allows ADJ shaft encoder to set overall chroma gain F3 allows ADJ shaft encoder to set U chroma gain F4 allows ADJ shaft encoder to set V chroma gain CAL sets all chroma g...

Страница 21: ...haft encoder will adjust both the U and V gains by the same proportion of their default values The CGAIN value is an average of the U and V values Press the F3 button to allow the shaft encoder to adj...

Страница 22: ...HSE are not available in 8 bit mode The active output timing reference The horizontal and vertical timing adjustments operate relative to one of three analogue timing references These are an external...

Страница 23: ...BT 601 The minimum delay through the board is approximately 1 7 lines in 10 bit mode and 0 7 lines in 8 bit mode Adjusting chroma phase Press the F3 button to allow the shaft encoder to adjust the ch...

Страница 24: ...s first powered up detects the current configuration settings and restores the appropriate control Once this initialisation procedure is complete the card can be controlled or configured from the card...

Страница 25: ...tandard 625 or 525 standard selected manually using jumper link J3 Lever 3 Composite input Y C S video input Lever 4 VBI data passed unprocessed on luminance channel VBI data blanked Forcing the video...

Страница 26: ...Link Position Function J5 Board centre Manually select 10 or 8 bit operation when piano switch 1 is DOWN Link to the rear forces 8 bit operation Link to the front forces 10 bit operation The decoder...

Страница 27: ...adjust the luminance offset black level 2 CGain 100 The shaft encoder can be used to adjust both the U and V chrominance gains 3 Ugain 100 The shaft encoder can be used to adjust the U chrominance ga...

Страница 28: ...es When the maximum adjustment of one frame is reached the value wraps round to zero 8 Phase 0 version number shown in 8 bit mode In 10 bit mode chroma phase relative to burst can be adjusted in steps...

Страница 29: ...output relative to the reference in increments of 37ns Select position 5 H Pos with the SEL control to allow the shaft encoder to adjust the horizontal output timing The range of adjustment is one vi...

Страница 30: ...p pedestal compensation ON or OFF SEL 7 Display Text Description Setup on 7 5 IRE subtracted from black level gain increased Setup off Black level and gain settings assume no 7 5 IRE offset Note When...

Страница 31: ...Crystal Vision Card edge operation 30 DEC102SUser ManualV1 0 05 11 03...

Страница 32: ...er supply The DTBAV and Indigo 1U high Desk Top Box has built in power supply and will house up to 2 single height modules RM01 Modular rear connectors Description RM01 12 DEC102 modules per FR2AV or...

Страница 33: ...lowest slot position No card is fitted in the third from top slot For details of fitting rear connectors please refer to the appropriate frame manual BNC_U BNC_1 Function A IN Serial Digital Output 1...

Страница 34: ...General Label ZLA00158 Function A Not used B Serial Digital Ouput 1 C Serial Digital Output 2 D Composite Sync Loop through set by J1 E Composite Sync B B input F Not used connected to frame ground G...

Страница 35: ...erial Digital Output SD2 Serial Digital Output Y G OPA Analogue Composite Video or C input U B OPB Analogue Y plus sync input active in Y C input mode V R OPC TTL pulse output for audio follow delay S...

Страница 36: ...J1 to the upper position for a loop through output Link Position Select loop through or termination of reference syncs J1 Bottom right hand corner near edge connector Link to the top ext syncs looped...

Страница 37: ...ect node addressing on this and other boards in current frames DEC 102S front section showing jumper link positions Setting the node address in older frames Frame Node address setting FR1 6 FR2 12 FR2...

Страница 38: ...Position Description Green Conf Illuminates when board power on configuration is complete Yellow Sync Illuminates when analogue timing reference is absent The board output will be timed relative to t...

Страница 39: ...f the input timing is set so far out that the burst is not detected Statesman settings change unexpectedly Active control panel or card edge control settings may have overridden Statesman settings if...

Страница 40: ...mplitude of syncs 150mV to 4V Link on PCB selects 75 Ohm termination or high impedance with loop through via PCB Blanking To analogue PAL NTSC specifications with selectable VBI blanking PAL lines 7 t...

Страница 41: ...to 6 modules Indigo DT 1U Desk top box without active control panel for up to 2 modules Indigo 2A 2U frame with active control panel for up to 12 modules Indigo 1A 1U frame with active control panel f...

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