Post-manufacture FINISHING-OFF sequence to all production TIM-3C modules
========================================================================

			MP-UCL, 16-05-2005


1)	Remove washers from under all the 3x 4 M2.5 screws-heads ( on the
 	'solder' side of the PCB ), fastening the three stiffening bars

2)	Replace all the 3x 4 screws fastening the three stiffening
	bars by a new screws with 'flatter' pan-head :
	- Use : M2.5 x 6mm, PAN head, slotted, s/steel, RS 526-928
	    and M2.5 x 12mm, PAN head, slotted, s/steel, RS 526-934

3)	Remember to place nylon M2.5 washers between the central vertical 
	stiffening bar and the PCB ( to insulate from top tracks )
	- Use : M2.5 Nylon Washers, RS 528-160

4)	Place M3 x 5mm spacers between the two horizontal stiffening
	bars and the PCB ( to aid cooling air flow )
	- Use : M3 x 5mm HEX spacers, RS 222-367

5)	Number the boards ( write Ser.nos. on TOP and BOTTOM )

6)	Attach the 'Rittal' handles ( #3688 770 on TOP, #3688 771 on BOTTOM ),
	and the 'Schroff' PCB bracket ( CENTRE ), to the front panel, using
	M2.5x6mm screws provided

7)	Attach the front panel to PCB
	- Use : M2.5x 6mm, PAN head, slotted, s/steel, RS 526-928

8)	Attach the extra stiffening bar across the J1,J2, J3 connectors.
	Remember to cover the top and bottom of this bar with Kapton
	insulating tape.
	- Use the pre-cut spacers, with the MACHINED FACE *UPWARD*.
	- Use M2.5x 16mm, PAN head, slotted, screws, RS 130-606

9)	Attach the dual 'combo' PL1 front panel connector to the PCB
	using M2.5 x 20mm screws ( RS 523-812 ) and M2.5 nuts. These
	screws then need to be cut-off flush with the connector housing

10)	Mark with white paint ( Tippex ) the r/hand 'ON' side/edge
	of all four DIL switches SW7,8,9,10

11)	Add all links as per "SETTING-UP" list

12)	Hardwire SERIAL NUMBER by un-soldering relevant pull-down 0 Ohm
	resistors  R90-97 below the U75 ( see Diag 07 ) :
		R90 = SERN(7) = MSB
		R97 = SERN(0) = LSB
	- All these resistors are soldered in by manufacturer, thus 
	  setting all bits SERN<0-7> = GND = 0
	- Any bit which requires to be set HIGH = 1 needs to have resistor 
	  removed ( NOTE: Hexadecimal coding applies ).
	- For TIM-3C modules this ranges from #26 to #49 in decimals only!

13)	Set VME Base Address switches : SW3 & SW6 = 0, SW4 = F, SW5 = D

14)	Use a cotton bud to lubricate all individual 'sockets' of
	the J21, J22, J23 daughter-board connectors on the 'component'
	side of the PCB
								/cont:



					- 2 -


15)	Stick Kapton insulating tape over the J21, J22, J23 connectors 
	pins, on the 'solder' side of the PCB

16)	Stick a single continuous strip of the Kapton insulating tape
	all along back edge of the PCB on solder side, over the 
	stiffening bar fixing screw-heads and over pins of J1,2,3.

17)	Stick a single continuous strip of the Kapton insulating tape
	all along front edge of the PCB on solder side, behind the front
	panel, and over the front panel fixing screw-heads

18)	Make and attach labels to the PCBs :	UCL-HEP
						ATLAS-SCT
						TIM-3C
						Ser. Nos.

19)	- ditto -  on front panel handles

20)	If using TTCrq modules, insert the 7mm dual-line spacers into each
	of the J21, J22 ( 2x 25pins) and J23 ( 2x 13pins ) connectors
	- Use : 'E-tec' DIS-250-S009-01 spacers

21)	Check for shorts between all power fuses FS1 - FS5 and to GND

22)	On all PCBs, do the following mods :

	   a) - unsolder & lift leg 1 of U36 clear of track
	   b) - connect this leg 1 of U36 to legs 3 & 4 = GND
	   c) - solder a miniature 10k resistor between U56 pin 17 and 
		U56 pin 20 = Vcc

23)	ON  TIM-3C SER. NOS: 326-341 ONLY :
	-----------------------------------
	Pads for tantalum capacitors C85, C390, C393 have been marked
	with REVERSED POLARITY ( ie. pad marked "+" is connected to GND ).
	- Unsolder & discard them and replace them with new 4u7F/16V
	  tantalum capacitors soldered with the cathode pin 1 ( ie.
	  unmarked end ) to the pad marked with "+" sign on PCB top silk.
	- Use : AVX/Kyocera TAJB475K016R, FARNELL 498-725

24)	Check smd capacitor C446 ( on solder side of PCB below U56 ).
	If missing, replace by 4u7/16V/X5R/1206 smd capacitor

25)	FINALLY - plug the TIM-3C into crate, switch crate power on, check
	for smoke (!), check currents drawn
	( <12 A for +5V - includes PSI-VME and TTCvx/vi cards in crate )

26)	Program the FPGA-1 & 2


					This Version : MP - UCL, 16 May  2005

					Previous versions :	 16 May	 2005
								 13 May	 2005
								 05 May  2005 
								 29 Apr. 2005
								 23 Mar. 2005
								 02 Mar. 2005
								 28 Feb. 2005
								 26 Feb. 2005