BEMC TDB repairs 2021

 

 

BTOW Crate

Board #

Issue 1

Issue 2

Comments

 

 

 

 

 

0x03

3

eprom

Stale pedestals/data last 16 channels

Replaced:

BRTRIG EPROM-> chs 17 – 32
TM2 EPROM
Ejector tab

Board is back in crate

0x05

5

eprom/ HT6 conv 2 0x3000

 

very difficult to get to crate and get boards out. BSMD crate below.

Did not find reported issue.
checked HT conversion 1 & 2: SAT
board configures & reads back: SAT

0x07

5

 

Adjust pedestals (too low)

Adjusted ped. offsets, read SAT

Board is back in crate

0x08

5

eprom, mask 2

 

Replaced main EPROM

Test mask and readout SAT

Board is back in crate

0x08

1

 

Stale pedestals/data last 16 channels

Latency EPROM replaced
32 channel pedestal readout: SAT

Board is back in crate

0x0b

1

eprom

 

I am not sure how to access crate 0x0B?

Replaced BRTRIG 2 EPROM
test mask bits & HT conversion: SAT

Board is back in crate

0x0b

5

 

Stale pedestals/data last 16 channels

Replaced TM2 latency EPROM
test mask bits: SAT

readout 32 pedestal data: SAT

Board is in test crate


0x15

2

 

Stale pedestals/data last 16 channels

replaced TL2 prom
checked pedestals: SAT
configure/ readback: SAT

0x1a

3

eprom

 

 

0x1e

4

eprom

 

replaced TRIG EPROM 1
mask bits for chs 0-31: SAT

Board is back in crate

0x1e

5

 

Stale pedestals/data last 16 channels

replaced TL2 EPROM
pedestals for chs 15-31: SAT

Board is back in crate

0x10

CC

Crate Controller, no voltages readings

 

 

0x14

CC

Crate Controller, no voltages readings