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[Console Repair/Mod Center / PAL TurboGrafx-16 NTSC Mod Guide]

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ok remove PCZ80



jumper in clocks (jumper from pin6 to pins 15 and 22. jumper pin10 to pin11)
jumper in sync (pin16 of PCZ80 to pin40 of HuC6260)



system clock X201 change to 21.4772Mhz



color clock X202 change to 3.579545Mhz



and clip pin7 on the cxa1145 and tie it to 5V

[Console Repair/Mod Center / DUO/SCDR2 tech data]

i have been pin mapping D91317GD (IC501 in the duo)

heres what i have so far updated 4/16/2014

its the signals between the huc6280 and the expansion mapper(DMA chip)

added ADPCM, SYS card and BUS control logic

Code Select Expand

----------------------------------SYSTEM BUS--------------------------
1 +5
2 IRQ2
3 A20/XCE (NO BUFFER)
4 A19 (NO BUFFER)
5 A18
6 A17
7 A16
8 A15
9 A14
10 A13
11 A12
12 A11
13 A10
14 +5
15 GND
16 A9
17 A8
18 A7
19 A6
20 A5
21 A4
22 A3
23 A2
24 A1
25 A0
26 +5
27 D0
28 D1
29 D2
30 +5
31 GND
32 D3
33 D4
34 D5
35 D6
36 D7
37 /OE SYS CARD RAM &BRAM IC519(6) INPUT FROM HUC6280(62) XRD /OE WORK RAM
38 /WE SYS RAM IC519(3) INPUT XWR HUC6280(63) /WE WORK RAM
39 GND
40 HU CARD CHECK
41 NC
42 NC
43 NC
44 MAIN BUS DATA ENABLE
45 MAIN BUS DATA R/W
------------------------------SYS CARD----------------------
46 SYS CARD ROM /CE
47 SYS CARD RAM0 /CE
48 GND
49 Q501 E
50 SYS CARD RAM1 /CE
51 NC
52 NC
53 NC
54 NC
55 NC
-------------------------------ADPCM------------------------
56 IC509, IC510 PIN17
57 IC509, IC510 PIN15
58 IC509, IC510 PIN3
59 IC509, IC510 PIN2
60 GND
61 +5
62 IC510 PIN1
63 IC510 PIN4
64 IC509 PIN1
65 IC509 PIN4
66 IC509, IC510 PIN10
67 IC509, IC510 PIN6
68 IC509, IC510 PIN7
69 IC509, IC510 PIN8
70 IC509, IC510 PIN11
71 IC509, IC510 PIN12
72 IC509, IC510 PIN13
73 IC509, IC510 PIN14
74 47K PULLUP
75 GND
76 IC509, IC510 PIN16
77 IC509, IC510 PIN5
78 Q307 B (RESET)
79 Q606 B (FADER)
80 Q607 B (FADER)
81 AUDIO MUX CONTROL
82 IC502 PIN14 (CLOCK?)
83 X1
84 X1
85 GND
86 IC502 PIN7
87 IC502 PIN6
88 IC502 PIN5
89 IC502 PIN4
90 +5
91 GND
92 IC502 PIN15
93 IC502 PIN16
-----------------------------CD ROM--------------------------
94 RST
95 GND
96 IC105 PIN46 [SCSI DATA
97 IC105 PIN45 [SCSI DATA
98 IC105 PIN44 [SCSI DATA
99 IC105 PIN43 [SCSI DATA
100 IC105 PIN42 [SCSI DATA
101 IC105 PIN41 [SCSI DATA
102 IC105 PIN39 [SCSI DATA
103 IC105 PIN38 [SCSI DATA
104 NC
105 -> IC103 PIN21
106 <- IC103 RESISTOR PIN22
107 IC105 PIN86 CD DATA (SERIAL)
108 IC105 PIN88
109 IC103 RESISTOR PIN69
110 IC103 PIN24 + IC104 PIN20
111 IC103 RESISTOR PIN77
112 GND
113 IC104 PIN19
114 IC105 RESISTOR PIN57
115 IC105 RESISTOR PIN33
116 IC105 RESISTOR PIN55
117 IC105 RESISTOR PIN35+54
118 IC105 RESISTOR PIN32
119 IC105 RESISTOR PIN56
120 GND


[Buy/Sell/Trade / FS RCA Pannel jacks $2 per set]

these are perfect for AV or RGB mods.
could also be used for any project you just need jacks for.

[Buy/Sell/Trade / 100uf 16V and 33uf 16V solid tantalum capacitors (surface mount) added part]

i have just purchased a large batch of 100uf 16V solid tantalum capacitors (surface mount)
these are vishay PN: 293D107X9016D2TE3
they can be used to replace any 100uf cap rated 16V or less (16V, 6V, 6.3V Ect)
heres a comparison picture showing the silver aluminum cap common in the duo and express and these caps (black rectangle)



I just got some 33uf 16V solid tantalum capacitors (surface mount) and am offering both now.

I'm offering these for $0.20 each plus shipping.

please look these parts up on line, you should be impressed!!

Tantalum caps are commonly used in aircraft and medical systems due to extreme reliability requirements in those systems.

[Buy/Sell/Trade / TurboBooster for sale ------sold]

http://cgi.ebay.com/Turbo-Grafx-TurboBooster-Turbografx-16-Turbo-Booster-/260811674231?pt=Video_Games&hash=item3cb9965277

[PC-FX Discussion / PCFX laser replacement.]

I searched, and didnt find a thread on it so i started one.
I just replaced my laser assy on my PCFX, took pics and will do a quick tutorial.



the original PCFX drive with laser removed.