View source for R1 S6 SignalSearchLog

==Testing procedure==

Things that may cause "noise" that are actually due to your testing setup:

* STB boards not securely attached to chamber. Make sure center screws (ones attaching directly to the chamber, not the nylon stand-offs) are tightened to 14 in. lb's.

* Scope's termination set to 1Mohm. Set the scope to 50ohm termination.

* Lower bandwidth of 1 Ghz scope to 200 Mhz. This attenuates peak height, but also rejects high frequency noise and reduces the noise level from 55-65 mV to ~11-15 mV.

=Super Layer 1=
==STB-1 G1202220==
{| border="1"  |cellpadding="20" cellspacing="0 
|-e
|Layer || Wire || Channel || Date ||Comments
|-
|      ||      ||    U1   ||      ||This channel presents higher noise level than the other ones, which makes difficult to get a signal with amplitude below 30mV. This behaviour extends to all the first channels of each connector in the board. however, if a high enough trigger level is set in the scope(~40mV), it is always possible to get a signal in these channels.
[[File:U01_Noise.png|200px]] 
|-
|      ||      ||   U24   ||      || Warm Wire: This is a channel that always triggers a fake signal.
[[File:U24_1380_WARM.png|200px]]
|-
|      ||      ||   U38   ||      || Warm Wire.
[[File:U38_1380_WARM.png|200px]]
|-
|      ||      ||   U66   ||      || HOT Wire: This is a channel that always triggers a fake signal very often.
[[File:U66_1380_HOT.png|200px]]
|-
|      ||      ||   U87   ||      || HOT Wire.
[[File:U87_1380_HOT.png|200px]]
|-
|      ||      ||   U93   ||      || HOT Wire.
[[File:U93_1380_HOT.png|200px]]
|}
The rest of channels not mention here has a similar behaviour between them, with a noise level not greater than ~20mV.

==STB-2 G1202266==
{| border="1"  |cellpadding="20" cellspacing="0 
|-
|Layer || Wire || Channel || Date ||comments
|-
|      ||      ||   U38   ||      || Hot wire.
[[File:U38_1360_HOT.png|200px]]
|-
|      ||      ||   U40   ||      || Warm wire.
[[File:U40_1360_WARM.png|200px]]
|-
|      ||      ||   U51   ||      || Hot wire.
[[File:U51_1360_HOT.png|200px]]
|-
|      ||      ||   U65   ||      || Hot wire.
[[File:U65_1360_HOT.png|200px]]
|}

==STB-3 G1202273==
{| border="1"  |cellpadding="20" cellspacing="0 
|-
|Layer || Wire || Channel ||  Date ||comments
|-
|      ||      ||    U1   ||       ||Hot wire.
[[File:U01_HOT.png|200px]]
|-
|      ||      ||    U2   ||       ||Hot wire.
[[File:U02_HOT.png|200px]]
|-
|      ||      ||    U39  ||       ||Hot wire.
[[File:U39_1350_HOT.png|200px]]
|-
|      ||      ||    U78   ||      ||Hot wire.
[[File:U78_1350_HOT.png|200px]] 
|}

==STB-4 G1202275==
{| border="1"  |cellpadding="20" cellspacing="0 
|-
|Layer || Wire || Channel || Date ||comments
|-
|      ||      ||   U15,U21,U28   ||      ||This Board presents a unusual noise in all the channels. The noise is a big positive spark, which makes difficult the recolection of signals. However, It was possible by setting a higher trigger level in the scope. 
[[File:U15_SV_1289_Big_Positive_Spark.png|200px]][[File:U21_SV_1310_Big_Positive_Spark.png|200px]][[File:U28_SV_1310_Big_Positive_Spark.png|200px]]
|-
|      ||      ||   U61    ||      ||Hot and Noisy.
[[File:U61_SV_1350_HOT_Noise.png|200px]]  
|}

==STB-5 G1202271==
{| border="1"  |cellpadding="20" cellspacing="0 
|-
|Layer || Wire || Channel || Date ||comments
|-
|      ||      ||   U08   ||      ||Hot and Noisy.
[[File:U08_SV_1289_HOT_Noisy.png|200px]]  
|-
|      ||      ||   U17   ||      ||Noise.
[[File:U17_SV_1289_Noise.png|200px]]
|-
|      ||      ||   U18   ||      ||Noise.
[[File:U18_SV_1289_Noise.png|200px]]
|-
|      ||      ||   U33   ||      ||Noise.
[[File:U33_SV_1289_Noise.png|200px]]
|-
|      ||      ||   U34   ||      ||Noise.
[[File:U34_SV_1289_Noise.png|200px]]
|-
|      ||      ||   U49   ||      ||Noise.
[[File:U49_SV_1289_Noise.png|200px]]
|-
|      ||      ||   U50   ||      ||Noise.
[[File:U50_SV_1289_Noise.png|200px]]
|-
|      ||      ||   U60   ||      ||Hot.
[[File:U60_SV_1289_HOT.png|200px]]
|-
|      ||      ||   U65   ||      ||Noise.
[[File:U65_SV_1289_Noise.png|200px]]
|-
|      ||      ||   U66   ||      ||Noise.
[[File:U66_SV_1289_Noise.png|200px]]
|-
|      ||      ||   U81   ||      ||Noise.
[[File:U81_SV_1289_Noise.png|200px]]
|-
|      ||      ||   U82   ||      ||Noise.
[[File:U82_SV_1289_Noise.png|200px]]
|-
|      ||      ||   U88   ||      ||Hot.
[[File:U88_SV_1289_HOT.png|200px]]
|-
|      ||      ||   U89   ||      ||Hot.
[[File:U89_SV_1289_HOT.png|200px]]
|}

==STB-6==
{| border="1"  |cellpadding="20" cellspacing="0 
|-
|Layer || Wire || Date ||comments
|-
|  ||   ||    || 
|}

==STB-7==

{| border="1"  |cellpadding="20" cellspacing="0 
|-
|Layer || Wire || Date ||comments
|-
|  ||   ||   ||  
|}

=Super Layer 2=



==STB-1==
{| border="1"  |cellpadding="20" cellspacing="0 
|-
|Layer || Wire || Date ||comments
|-
|  ||   ||    || 
|}

==STB-2==
{| border="1"  |cellpadding="20" cellspacing="0 
|-
|Layer || Wire || Date ||comments
|-
|  ||   ||  
|}

==STB-3==
{| border="1"  |cellpadding="20" cellspacing="0 
|-
|Layer || Wire || Date ||comments
|-
|  ||   ||    || 
|}

==STB-4==
{| border="1"  |cellpadding="20" cellspacing="0 
|-
|Layer || Wire || Date ||comments
|-
|  ||   ||    || 
|}

==STB-5==
{| border="1"  |cellpadding="20" cellspacing="0 
|-
|Layer || Wire || Date ||comments
|-
|  ||   ||  
|}

==STB-6==
{| border="1"  |cellpadding="20" cellspacing="0 
|-
|Layer || Wire || Date ||comments
|-
|  ||   ||    || 
|}

==STB-7==
{| border="1"  |cellpadding="20" cellspacing="0 
|-
|Layer || Wire || Date ||comments
|-
|  ||   ||   ||  
|}




[[CLAS12_R1_S6_QA]]