From f97e8030c32f851a611abdd5965fa7f850f5719b Mon Sep 17 00:00:00 2001 From: Ivan Vangelista Date: Mon, 24 Aug 2020 18:19:40 +0200 Subject: alpha68k_n.cpp: improved Kyros no Yakata PCB documentation [Guru] --- src/mame/drivers/alpha68k_n.cpp | 113 ++++++++++++++++++++++++++++++---------- 1 file changed, 85 insertions(+), 28 deletions(-) diff --git a/src/mame/drivers/alpha68k_n.cpp b/src/mame/drivers/alpha68k_n.cpp index 8c935975d78..f96df81f754 100644 --- a/src/mame/drivers/alpha68k_n.cpp +++ b/src/mame/drivers/alpha68k_n.cpp @@ -17,58 +17,115 @@ Kyros no Yakata Alpha Denshi, 1986 -PCB Layout: - +PCB Layout +---------- Main Board + +(no PCB number) |----------------------------------------------------------| | | | 0.1T 24MHz | | | -| 15.3T | -| PROMG.4R 5814 | -| 16.5T PROMR.5R PROMH.5P 5814 DSW1(8) | -| PROMB.6R PROML.6P | -| 17.7T MCU | -| 2016 2016 | -| 18.9T 9.9S 8.9R 2016 2016 | -| | +| 15.3T 5814 | +| PROMG.4R SW1 | | 1| +| 16.5T PROMR.5R PROMH.5P 5814 | | 8| +| PROMB.6R PROML.6P | | W| +| 17.7T 8511 | | A| +| 2016 2016 | | Y| +| 18.9T 9.9S 8.9R 2016 2016 | | | +| | | | | 19.11T 68000 2016 2.10C 4.10A | | 14.12R 12.12N 2016 | | 20.13T 13.12P 11.12M 1.13C 3.13A | -| | +|CN | |----------------------------------------------------------| +Notes: + 68000 clock - 6.000MHz [24/4] + 2016 - 2kx8 SRAM + 5814 - 2kx8 SRAM + CN - 18-pin flat cable connector joining to sound PCB + | - ALPHA-INPUT84 custom ceramic module (x2) + SW1 - 8-position DIP Switch + VSync - 60Hz + HSync - 15.20kHz + 8511 - Alpha 8511 Microcontroller at location 7C. '8511' is silkscreened on the PCB. + Clock input 3.000MHz [24/8] (measured on pin 5). + The chip is pin-compatible with Motorola MC68705U3, Motorola MC6805U2 + and Hitachi HD6805U1. The 4k MC68705U3 dump in MAME is from a bootleg PCB. Sound Board +----------- + +SOUND BOARD NO.60MC01 |---------------------| +| 40174 324 UPC1181| +| 4013 VOL VOL | +| YM3014 324 6| +| W| +| YM2203 AY-3-8910 A| +| Y| +| AY-3-8910 | | | -| | -| YM3014 | -| | -| YM2203 AY-3-8910 | -| | -| AY-3-8910 | -| | -| | +| DIP28 | | | | 2.1F 2114 | | 2114 | | 1.1D 16MHz | | | | Z80 | -| | +|CN | |---------------------| - Notes: - 68k clock: 6.000MHz - Z80 clock: 4.000MHz - VSync: 60Hz - HSync: 15.20kHz - AY-3-8910 clock: 2.000MHz - YM2203 clock: 2.000MHz -Unknown MCU clock: 3.000MHz (measured on pin 5) + Z80 clock - 4.000MHz [16/4]. The actual chip is a NEC D780C-1 +AY-3-8910 clock - 2.000MHz [16/8] + YM2203 clock - 2.000MHz [16/8] + YM3014 - Yamaha YM3014 DAC. Clock input 1.33333MHz [16/12] + UPC1181 - Power AMP IC + 324 - LM324 Quad Op Amp + 2114 - 1kx4 SRAM + 40xx - 4000-series logic chips + CN - 18-pin flat cable connector joining to main PCB + DIP28 - Empty socket + +PCB Pinout +---------- + + 18-WAY Connector (Main) + Parts Solder + ----------------- + +5V A1 B1 +5V + +5V A2 B2 +5V + 1P UP A3 B3 2P DOWN + 1P DOWN A4 B4 2P RIGHT + 1P RIGHT A5 B5 2P LEFT + 1P LEFT A6 B6 2P BUTTON 1 + 1P BUTTON 1 A7 B7 - + 1P BUTTON 2 A8 B8 - + - A9 B9 COIN 1 + 1P START A10 B10 COIN 2 + 2P UP A11 B11 2P BUTTON 2 + GREEN A12 B12 - + BLUE A13 B13 2P START + RED A14 B14 - + SYNC A15 B15 - + GND A16 B16 GND + GND A17 B17 GND + GND A18 B18 GND + +6-WAY Connector (Sound) + Parts Solder + ----------------- + +12V A1 B1 +12V + - A2 B2 - + +5V A3 B3 +5V + SPK+ A4 B4 SPK+ + SPK- A5 B5 GND + GND A6 B6 GND + ***************************************************************************/ + #include "emu.h" #include "includes/alpha68k.h" -- cgit v1.2.3