From 42e7d2b9aaf9649944ccf2db95a571247e7165b8 Mon Sep 17 00:00:00 2001 From: "W. Trevor King" Date: Fri, 19 Nov 2010 12:31:29 -0500 Subject: [PATCH] Add MultiMode internals post (from old site). --- posts/MultiMode.mdwn | 2 +- posts/MultiMode/internals.rst | 277 ++++++++++++++++++ .../{stepper => }/multimode_interior_0.jpg | Bin .../multimode_main_board_chips.jpg | Bin 4 files changed, 278 insertions(+), 1 deletion(-) create mode 100644 posts/MultiMode/internals.rst rename posts/MultiMode/{stepper => }/multimode_interior_0.jpg (100%) rename posts/MultiMode/{stepper => }/multimode_main_board_chips.jpg (100%) diff --git a/posts/MultiMode.mdwn b/posts/MultiMode.mdwn index d73809d..4b596f1 100644 --- a/posts/MultiMode.mdwn +++ b/posts/MultiMode.mdwn @@ -9,7 +9,7 @@ notes on: * [[Stepper motor control|stepper]] * [[Photo-diode signal access]] -* [[MultiMode internals]] +* [[MultiMode internals|internals]] * [Closest thing][connection] to a description of the NanoScope-MultiMode connection that I can find online. (see Ch. 10) * A [MultiMode manual][manual] diff --git a/posts/MultiMode/internals.rst b/posts/MultiMode/internals.rst new file mode 100644 index 0000000..ed912d8 --- /dev/null +++ b/posts/MultiMode/internals.rst @@ -0,0 +1,277 @@ +Here are my current guesses about the role of various connector lines +inside the [[MultiMode II|MultiMode]. + +DB-25 line descriptions +======================= + +========== ======================================= ======================================= +DB-25 line Role To +========== ======================================= ======================================= +1 Stepper A Main 3 +2 Stepper B Main 20 +3 +5 Volts Main 7 (also 1,2,18,19 through 20 Ohms) +4 Auxiliary D (role?) Jumper 2 +5 HV to piezo (-Y) Piezo 5 +6 NCAFMJM pin 2 (role?) Main 8 +7 HV to piezo (-X) Piezo 9 +8 Piezo/head chassis ground Peizo 1; Head 13; Jumper 8 +9 -15 Volts Main 26 +10 Analog 2 (gain select) Main 17, Jumper 6 +11 Vertical cantilever deflection Main 15 +12 Green loop (photodiode ground?) Main 27 +13 BB2107 pin 5 (2+) though R (role?) Main 9 +14 Manual switch mode AFM/LFM (+5 Volts?) Switch 10 +15 Stepper C Main 4 +16 Stepper D Main 21 +17 Head Gnd? Head 1 +18 HV to piezo (+Y) Piezo 4 +19 Main board ground Main 5 +20 HV to piezo (+X) Piezo 8 +21 Horizontal deflection Main 33 +22 HV to piezo (+Z) Piezo 6 +23 NCAFMJM pin 3 (role?) Main 25 +24 +15 Volts Main 10 +25 AD620 pin 2 (in -) through R (role?) Main 31 +========== ======================================= ======================================= + +Main board line descriptions +============================ + +========= ========================================================= =============================== +Main line Role To +========= ========================================================= =============================== +1 Stepper C, from DS3658N pin 6 Stepper Black +2 Stepper A, from DS3658N pin 1 Stepper Brown +3 Stepper A? in DB-25 1 +4 Stepper B? in DB-25 15 +5 Main board ground (black loop) DB-25 19 +6 Manual stepper switch direction Switch Purple +7 +5 Volts DB-25 3 +8 NCAFMJM pin 2 DB-25 6 +9 through R to BBOPA2107 pin 5 (+2) DB-25 13 +10 +15 Volts DB-25 24, Head 5 though 10 Ohms +11 Photodiode D Head 11 +12 Photodiode A Head 9 +13 DG403 pin 10 +14 internal plane, but not ground loop? +15 Vertical cantilever deflection 620 pin 6 (out) DB-25 11 +16 DG403DJ pin 6 DB-25 11 +17 Gain select DG 419pin 6 (through R) DB-25 10 +18 Stepper D, from DS3658N pin 8 Stepper Orange +19 Stepper B, from DS3658N pin 3 Stepper Yellow +20 Stepper C? in DB-25 2 +21 Stepper D? in DB-25 16 +22 AD827(far) pin 7 (out) (Tapping-piezo voltage) Head 15, tipholder 6 +23 Green loop Head 14 +24 Manual stepper switch enable Switch grey +25 NCAFMJM pin 3 DB-25 23 +26 -15 Volts DB-25 9, Head 7 through 10 Ohms +27 Green loop DB-25 12 +28 Photodiode ground (green loop) Head 2 +29 Photodiode C Head 10 +30 Photodiode B Head 8 +31 AD620 pin 2 (in -) through R DB-25 25 +32 BBOPA2107 pin 1(out1) through R(total photodiode) +33 DG403 pins 1 and 3 (drains from 1)(Horizontal deflection) DB-25 21 +34 +========= ========================================================= =============================== + +Chip list +========= +(following the [[!ltio multimode_main_board_chips.jpg]] numbering) + +===== ================ ====================================================== ===================================================== +Index Chip Description Role +===== ================ ====================================================== ===================================================== +1 DS3658N Current sink. Stepper motor current sink +2 H7555IBA CMOS timer. Manual stepper motor control clock +3 "NCAFMJM" ? Stepper motor +4 AD827JN Dual op amp. Far side amplifies tapping piezo signal (out Main 22) +5 Scratched out ? Stepper motor? +6 Scratched out ? Stepper motor? +7 AD534KD Difference multiplier (X1-X2)(Y1-Y2)/(10V)+Z2. Photo-diode? +8 AD734BQ Identical to AD534, but with control over denominator. Photo-diode? +9 SG531P 25.0000 M 25 MHz crystal oscillator. Photo-diode? +10 BBOPA 2107AU Dual op amp. Photo-diode? +11 DG419DJ CMOS analog switch. Photo-diode? +12 DG403DJ CMOS analog switch. Photo-diode? +13 AD534JD Identical to AD534KD, but with slightly more error. Photo-diode? +14 AD637JD RMS-to-DC converter. Photo-diode? +15 AD620AR Instrument amplifier. Photo-diode? +16 BBOPA 2604AU Op amp. Photo-diode? +17 DG411DJ Quad CMOS analog switch ? +===== ================ ====================================================== ===================================================== + +Main board wiring +================= + +Vertical deflection (Main line 15) comes from pins 6 and 8 (shorted +together) of the DG403 switch. Pin 6 drains pin 5 and pin 8 drains +pin 9 when the switch is turned on. I'm not sure what pin 5 is +attached to. Pin 9 is connected (through a resistor) to the output +(pin 12) of AD534a. + +Manual switch connector line descriptions +========================================= + +Line Color Role To +1 Orange Laser LED ? +2 White-red STM mode LED DB-25 17 +3 Green Mode TM Main 13 +4 Blue Mode STM 120 Ohms to DB-25 17 +5 Purple Stepper direction Main 6 +6 White-brown Stepper switch +5 Volts Main 7 +7 White Laser LED? DB-25 17 +8 Yellow Laser LED? +9 White-brown STM mode LED 160 ohms to DB-25 17?? +10 Red Mode AFM/LFM, +5 Volts DB-25 14 +11 Grey Stepper enable Main 24 +12 Black Stepper switch Gnd Main 5 + + +AFM head micro-D 15 connector line descriptions +=============================================== + +outside female from top-left: 8 7 6 5 4 3 2 1/15 14 13 12 11 10 9 + +inside male (on board) from bottom-right: 8 7 ... 1/9 10 11 ... 15 blank + +==== ============================================================= ======================== +Line Role To +==== ============================================================= ======================== +1 Laser Ground DB-25 17 +2 Photodiode ground Main 28 +3 +5 Volts Laser Power no main, no DB-25 ?? +4 +5 +15 Volts DB-25 24 through 10 Ohms +6 STM current? Jumper 1, tipholder 2 +7 -15 Volts DB-25 9 through 10 Ohms +8 Photodiode B Main 30 +9 Photodiode A Main 12 +10 Photodiode C Main 29 +11 Photodiode D Main 11 +12 AFM tip Jumper 3, tipholder 4 +13 Chassis ground DB-25 8, Jumper 8 +14 Tapping-piezo ground (main board shorts to photodiode ground) Main 23, tipholder 5 +15 Tapping-piezo voltage Main 22, tipholder 6 +==== ============================================================= ======================== + +(see, e.g. Glenair_) for Micro-D-Subminiature connector descriptions.) + +.. _Glenair: http://www.glenair.com/micro-d/index.htm + +AFM head to tipholder line descriptions +======================================= + +Labeled looking down on tipholder along laser, with Multimode LCD at +bottom from top-left: 1 2 3/4 5 6 + +==== ===================== ================================================================= +Line Role To +==== ===================== ================================================================= +1 +12 Volts ? +2 STM current? AFM connector 4 +3 -12 Volts ? +4 AFM tip? AFM connector 12 +5 Ground AFM connector 14, main 23, main board shorts to photodiode ground +6 Tapping-piezo voltage AFM connector 15, main 22 +==== ===================== ================================================================= + +On our tapping-in-air tipholders, removing the connector-pad plate +shows lines 1-4 are not connected to anything. Lines 5 and 6 have +wires heading over towards the piezo, as you would expect. On our +tapping-in-fluid tipholders, the pad is not removable, but the only +wires leaving the pad area connect to the oscillating piezo region, so +both tipholders have identical interfaces to the head, with 5/6 +providing piezo oscillation and 1-4 as non-contacts. + +Since both tapping mode pins are shorted through the head to the main +board, but not to the DB-25 connector to the NanoScope, we assume the +tapping oscillation is being generated on the MulitMode main board +itself. + +Piezo connector line descriptions +================================= + +outside male from top-left: 1 2 3 4 5/6 7 8 9 + +inside male (on board) from top-left: same + blank + +DB-25 labeled HV: 5,7,18,20,22 + +==== ======== ================= +Line Role To +==== ======== ================= +1 Ground DB-25 8, Jumper 8 +2 no db +3 no db +4 +Y piezo DB-25 18 +5 -Y piezo DB-25 5 +6 +Z piezo DB-25 22 +7 Piezo cap Jumper 7 +8 +X piezo DB-25 20 +9 -X piezo DB-25 7 +==== ======== ================= + +Jumper pin descriptions +======================= + +inside male from top-left: 1 2 3 4 5 6 7 8 + +Roles from MultiMode manual, 14-9 + +=== =========== ========================= +Pin Role To +=== =========== ========================= +1 STM current Head 6 +2 Auxiliary D DB-25 4 +3 AFM tip Head 12 +4 Analog 2 DB-25 10 +5 Gain Select Main 17 +6 Analog 2 DB-25 10 +7 Piezo Cap Piezo 7 +8 Ground DB-25 8, Piezo 1, Head 13 +=== =========== ========================= + +LCD connector descriptions +========================== + +inside male from top-left: 1 2 3 4 5 / 6 7 8 9 10 + +=== =========================== ================= +Pin Role To +=== =========================== ================= +1 Manual switch AFM/LFM, +5 V DB-25 14 +2 Total photodiode voltage Main 32 +3 -15 Volts Main 26 +4 +15 Volts Main 10 +5 Manual switch STM mode Switch 9 +6 Head Gnd? DB-25 17 +7 Main 16 +8 Green loop Main 27, DB-25 12 +9 Main 13 +10 Horizontal deflection Main 33 +=== =========================== ================= + + +LCD board +========= + +inside male from top-left: 1 2 3 4 5 / 6 7 8 9 10 + +=== ======================== ========================= +Pin Role To +=== ======================== ========================= +1 +5 V Big regulator +2 Total photodiode voltage +3 -15 Volts +4 +15 Volts +5 Manual switch STM mode +6 Head Gnd? +7 Main 16 +8 Ground Black loop +9 +10 Horizontal deflection top center BBOPA though R +=== ======================== ========================= + +[[!tag tags/hardware]] diff --git a/posts/MultiMode/stepper/multimode_interior_0.jpg b/posts/MultiMode/multimode_interior_0.jpg similarity index 100% rename from posts/MultiMode/stepper/multimode_interior_0.jpg rename to posts/MultiMode/multimode_interior_0.jpg diff --git a/posts/MultiMode/stepper/multimode_main_board_chips.jpg b/posts/MultiMode/multimode_main_board_chips.jpg similarity index 100% rename from posts/MultiMode/stepper/multimode_main_board_chips.jpg rename to posts/MultiMode/multimode_main_board_chips.jpg -- 2.26.2