From f700494f1f1aabd0f8f54d1f57d983bf350ebabe Mon Sep 17 00:00:00 2001 From: jbamuro <118798242+jbamuro@users.noreply.github.com> Date: Wed, 14 Dec 2022 22:17:41 -0800 Subject: [PATCH] Update README.md --- README.md | 31 ++++++++++++++++++++++++------- 1 file changed, 24 insertions(+), 7 deletions(-) diff --git a/README.md b/README.md index 6f2c568..2cb0e57 100644 --- a/README.md +++ b/README.md @@ -90,7 +90,9 @@ The coin entry stuff connected to the cash box is here too. There are 12 of these bad boys divided into two halves, set to channel 1-6 on each side that feed back into 2 touch unit control boards. Each one weighs x grams which totals to about 40 LBS. Somehow I never really understood how MASSIVE these units are until I held an individual segment in my hand. Here are some scans of a segment that shows the curve profile. - +![Touchcon Curve 1](img/concurve1.png =150x150) +![Touchcon Curve 2](img/concurve1.png =150x150) +![Touchcon Curve 3](img/concurve1.png =150x150) ## Replacement LED PCBs Wacca LEDs are notorious for being burnt out, you've likely received your machine in a state where some panels are not getting color data, are dim, or are straight up not lit up. This is partly due to the design of WS2812. @@ -125,12 +127,12 @@ https://www.lcsc.com/ is the recommended shop for these, they ship right out of | Footprint | Parts | Size | Value | LCSC | Remark | | --------- | ---------------------- | ---- | ------ | ------- | --------------------------------------------| | C1-C8 | Not Needed | N/A | N/A | N/A | WS2813B-V5 do not require decoupling caps | -| C9 | Tantalum Capacitor | 3216?| 22uF | [**C782264**](https://www.lcsc.com/product-detail/Tantalum-Capacitors_CEC-Shenzhen-Zhenhua-XinYun-Elec-CA45-A-16V-22uF-K_C782264.html) | Optional. 16V? (testing in progress) | -| CN1,CN2 | JST XA 3 pin | | | C265055 | B03B-XASK-1(LF)(SN) | -| CN3 | JST XA 4 pin | | | C264994 | B04B-XASK-1(LF)(SN) | -| D1-D8 | Worldsemi WS2813B-V5 | | | C965558 | | -| R1,R2 | 0805W8F1000T5E | 0805 | 100R | C17408 | | -| U1,U2 | MMBD1503A | | | C242273 | | +| C9 | Tantalum Capacitor | 3216?| 22uF | [**C782264**(]https://www.lcsc.com/product-detail/Tantalum-Capacitors_CEC-Shenzhen-Zhenhua-XinYun-Elec-CA45-A-16V-22uF-K_C782264.html) | Optional. 16V? (testing in progress) | +| CN1,CN2 | JST XA 3 pin | | | [**C265055**(]https://www.lcsc.com/product-detail/Wire-To-Board-Wire-To-Wire-Connector_JST-Sales-America-B03B-XASK-1-LF-SN_C265055.html) | B03B-XASK-1(LF)(SN) | +| CN3 | JST XA 4 pin | | | [**C264994**(]https://www.lcsc.com/product-detail/Wire-To-Board-Wire-To-Wire-Connector_JST-Sales-America-B04B-XASK-1-LF-SN_C264994.html) | B04B-XASK-1(LF)(SN) | +| D1-D8 | Worldsemi WS2813B-V5 | | | [**C965558**(]https://www.lcsc.com/product-detail/Light-Emitting-Diodes-LED_Worldsemi-WS2813B-V5_C965558.html) | | +| R1,R2 | 0805W8F1000T5E | 0805 | 100R | [**C17408**(]https://www.lcsc.com/product-detail/Chip-Resistor-Surface-Mount_UNI-ROYAL-Uniroyal-Elec-0805W8F1000T5E_C17408.html) | | +| U1,U2 | MMBD1503A | | | [**C242273**(]https://www.lcsc.com/product-detail/Diodes-General-Purpose_onsemi-MMBD1503A_C242273.html) | | So to do the math for you, to replace all of your lights, that's 60 PCBs you need. ``` @@ -154,6 +156,21 @@ One way to shave a lot of time off mass producing these PCBs is to order a stenc Upload the gerber zip, select the side that has all the LEDs as the top stencil (wacca_ws2813_f_paste.gtp), and make frameless stainless steel 5mil. Should cost about $50. Get some solder paste and apply it to the PCB using the stencil, apply the SMD components, put it in a modified oven or on top of a modified clothes iron (or maybe you can use hot air at low flow) + +Replacing the board on the touch panel + +TODO: post a more detailed guide with photos + +But this process is pretty easy, for most of them you dont even have to remove the panel but let's assume you're replacing all 60. + +1) Remove the screws holding the panel in the frame, remove panel +2) Remove the ribbon from the pentel touch pcb and unscrew and remove the pcb +3) Unscrew each PCB and pull them out +4) Place in the new PCB and screw everything back together + +Tip: You can "grip" the ribbon to feed it back through the hole to get it back into the pcb by using painter's tape. +Be gentle here though, broken ribbons are no fun. + ## Other hardware 50 inch LED