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thermoptic · 02-09-2008, 12:23 AM

I grew tired of watching the dust collect on my setup. This week I researched the connectors and the wiring diagrams.

JAE FI-S20S Panel Connector
For the JAE connector, pin 1 is located near the top, when the LCD is upright. See section 4.5.3 in the NL8060BC21-03 panel specification for details. The pin out is located in section 4.5.1.
http://www.mouser.com/catalog/627/1127.pdf
http://www.jae-connector.com/en/pdf/SJ031450.pdf
JAE FI-S20S (LVDS Cable Connector)
JAE FI-SE20P-HFE (NEC NL8060BC21-03 CN1)

LVDS-07 Hirose Connector
For the Hirose connector, pin 1 is located near the VIA VT1631L IC, in the upper left corner. There is also a pin 1 arrow marker on the Hirose SMT connector edge.
http://www.hirose.co.jp/cataloge_hp/e53600014.pdf
HRS DF13-40DS-1.25C (LVDS Cable Connector)
HRS DF13A-40DP-1.25V (LVDS-07 SMT Header)

Wiring Issues
I thought my cable assembly might be suspect. I had resoldered a loose connection and spliced in a power pin to FRC (as the LVDS07 only supplies two 3.3V pins). I was also concerned about the length of the cable causing resistivity issues (voltage drop and signal degradation).

I did some research and found that Digital View sells a $40 LVDS Panel Cable (P/N 426493000-3) with the proper connectors, only different wiring order for the 40-pin Hirose connector. The Digital View cable is designed for the ALR-1400 LCD controller board.

LVDS Panel Cable (P/N 426493000-3)
http://mouser.com/catalog/specsheets...26493000-3.pdf

For the Digital View cable, the default JAE FI-S20S wiring is fine. I found that by using a medium-sized safety pin, you can pop the pins on the 40-pin Hirose DF-40DS-1.25C and rearrange the wires for the VIA LVDS-07 card. You only need to pry up the outside tab on the Hirose connector to clear the retaining barb on the Hirose metal connector. Be very careful and only pry enough to remove the pin. You can use the safety pin to position the pins before clicking into place. This requires patience, so grab a cold one and relax before you tackle this task. Also, check twice and insert once.

Code:

=====================             =========================
  NEC NL8060BC21-03                 Via LVDS-07 Card
  JAE FI-S20S                       Hirose DF13-40DS-1.25C 
  20-pin Connector                 40-Pin Connector
=====================             =========================

(Top)
 1  D3+                            36  A3P (Differential signal)
 2  D3-                            34  A3M (Differential signal)
 3  DPS (FRW scan/REV scan)        11  GND
 4  FRC (24-bit color, 16M)         4  PVDD (+3.3V)
 5  GND                            32  GND
 6  CLK+                           30  CLK1P (Differential signal)
 7  CLK-                           28  CLK1M (Differential signal)
 8  GND                            26  GND 
 9  D2+                            24  A2P (Differential signal)
10  D2-                            22  A2M (Differential signal)
11  GND                            20  GND
12  D1+                            18  A1P (Differential signal)
13  D1-                            16  A1M (Differential signal)
14  GND                            14  GND
15  D0+                            12  A0P (Differential signal)
16  D0-                            10  A0M (Differential signal)
17  GND                             6  GND
18  GND                             5  GND
19  VCC                             2  PVDD (+3.3V)
20  VCC                             2  PVDD (+3.3V)
(Bottom)

Despite probing both the original cable and the new Digital View cable, I can't clear the distorted color issue. The signals and voltages are correct. It has to be the LVDS-07 card or a BIOS setting on the EN15000G. There are no clear markings on the "LVDS-07G" to denote the "-18" versus the "-24" suffix. I believe the option is related to a resistor change to set the mode, as it would make sense to use the same PCB to decrease manufacturing costs.

Unfortunately, I could not find a datasheet for the VT1631L part or the schematic for the LVDS-07G card. I ordered the LVDS-07G from mini-box.com. Their site uses the same photos for the 18-bit and 24-bits. In the event that I had a "-18" version, I tried the 262K color options with the panel:

LVDS-07 18-bit Color
FRC connects to GND
D3+ connects to GND
D3- connects to GND

I originally used the 24-bit wiring.

LVDS-07 24-bit Color
FRC connects to PVDD
D3+ connects to A3P
D3- connects to A3M

Attack Plan

Grab a cold one.
Update the EN15000G BIOS from 1.07 to current 1.09. Wishful thinking I suppose.
Investigate LCD BIOS options with 18-bit setting. There are 16 different LCD type settings in the BIOS. I believe that none deal with color, only scanning and positioning information. They range from 00 to 0F hexadecimal. I use VGA+LCD. The VGA output is always visible and the color is correct.
Try another LVDS-07G-24 card. I noticed that my LVDS-07G card is missing an IC for U3. The image on mini-box website has U3 populated. Perhaps this is not needed?
Try another LVDS controller, such as the ALR-1400 (unfortunately it is $140). I really don't want to do this. Hopefully the VIA EN15000G chipset can handle the panel color code encoding formats described in Section 4.6.2 and 4.6.3.

This car PC project is demanding a new level of patience and endurance.

02-09-2008, 12:23 AM	#68
thermoptic Constant Bitrate thermoptic's CarPC Specs Join Date: Aug 2007 Vehicle: 1998 Honda Accord Posts: 116 My Photos: ()	I grew tired of watching the dust collect on my setup. This week I researched the connectors and the wiring diagrams. JAE FI-S20S Panel Connector For the JAE connector, pin 1 is located near the top, when the LCD is upright. See section 4.5.3 in the NL8060BC21-03 panel specification for details. The pin out is located in section 4.5.1. http://www.mouser.com/catalog/627/1127.pdf http://www.jae-connector.com/en/pdf/SJ031450.pdf JAE FI-S20S (LVDS Cable Connector) JAE FI-SE20P-HFE (NEC NL8060BC21-03 CN1) LVDS-07 Hirose Connector For the Hirose connector, pin 1 is located near the VIA VT1631L IC, in the upper left corner. There is also a pin 1 arrow marker on the Hirose SMT connector edge. http://www.hirose.co.jp/cataloge_hp/e53600014.pdf HRS DF13-40DS-1.25C (LVDS Cable Connector) HRS DF13A-40DP-1.25V (LVDS-07 SMT Header) Wiring Issues I thought my cable assembly might be suspect. I had resoldered a loose connection and spliced in a power pin to FRC (as the LVDS07 only supplies two 3.3V pins). I was also concerned about the length of the cable causing resistivity issues (voltage drop and signal degradation). I did some research and found that Digital View sells a $40 LVDS Panel Cable (P/N 426493000-3) with the proper connectors, only different wiring order for the 40-pin Hirose connector. The Digital View cable is designed for the ALR-1400 LCD controller board. LVDS Panel Cable (P/N 426493000-3) http://mouser.com/catalog/specsheets...26493000-3.pdf For the Digital View cable, the default JAE FI-S20S wiring is fine. I found that by using a medium-sized safety pin, you can pop the pins on the 40-pin Hirose DF-40DS-1.25C and rearrange the wires for the VIA LVDS-07 card. You only need to pry up the outside tab on the Hirose connector to clear the retaining barb on the Hirose metal connector. Be very careful and only pry enough to remove the pin. You can use the safety pin to position the pins before clicking into place. This requires patience, so grab a cold one and relax before you tackle this task. Also, check twice and insert once. Code: ===================== ========================= NEC NL8060BC21-03 Via LVDS-07 Card JAE FI-S20S Hirose DF13-40DS-1.25C 20-pin Connector 40-Pin Connector ===================== ========================= (Top) 1 D3+ 36 A3P (Differential signal) 2 D3- 34 A3M (Differential signal) 3 DPS (FRW scan/REV scan) 11 GND 4 FRC (24-bit color, 16M) 4 PVDD (+3.3V) 5 GND 32 GND 6 CLK+ 30 CLK1P (Differential signal) 7 CLK- 28 CLK1M (Differential signal) 8 GND 26 GND 9 D2+ 24 A2P (Differential signal) 10 D2- 22 A2M (Differential signal) 11 GND 20 GND 12 D1+ 18 A1P (Differential signal) 13 D1- 16 A1M (Differential signal) 14 GND 14 GND 15 D0+ 12 A0P (Differential signal) 16 D0- 10 A0M (Differential signal) 17 GND 6 GND 18 GND 5 GND 19 VCC 2 PVDD (+3.3V) 20 VCC 2 PVDD (+3.3V) (Bottom) Despite probing both the original cable and the new Digital View cable, I can't clear the distorted color issue. The signals and voltages are correct. It has to be the LVDS-07 card or a BIOS setting on the EN15000G. There are no clear markings on the "LVDS-07G" to denote the "-18" versus the "-24" suffix. I believe the option is related to a resistor change to set the mode, as it would make sense to use the same PCB to decrease manufacturing costs. Unfortunately, I could not find a datasheet for the VT1631L part or the schematic for the LVDS-07G card. I ordered the LVDS-07G from mini-box.com. Their site uses the same photos for the 18-bit and 24-bits. In the event that I had a "-18" version, I tried the 262K color options with the panel: LVDS-07 18-bit Color FRC connects to GND D3+ connects to GND D3- connects to GND I originally used the 24-bit wiring. LVDS-07 24-bit Color FRC connects to PVDD D3+ connects to A3P D3- connects to A3M Attack Plan Grab a cold one. Update the EN15000G BIOS from 1.07 to current 1.09. Wishful thinking I suppose. Investigate LCD BIOS options with 18-bit setting. There are 16 different LCD type settings in the BIOS. I believe that none deal with color, only scanning and positioning information. They range from 00 to 0F hexadecimal. I use VGA+LCD. The VGA output is always visible and the color is correct. Try another LVDS-07G-24 card. I noticed that my LVDS-07G card is missing an IC for U3. The image on mini-box website has U3 populated. Perhaps this is not needed? Try another LVDS controller, such as the ALR-1400 (unfortunately it is $140). I really don't want to do this. Hopefully the VIA EN15000G chipset can handle the panel color code encoding formats described in Section 4.6.2 and 4.6.3. This car PC project is demanding a new level of patience and endurance.