Defender Board References

CPU Boards: Early Defender

449608 (525612) – purple jail bars – Rom 2 – (Early Defender)
449672 – Reports 1&4 memory error – (Early Defender)
452983 – No boot – Rom 1 – (Early Defender) [C]
455004 – Socketed, missing N9316N 8051 at Q2 and Decoder ROM. 4116 memory
XXXXXX – Missing memory, CPU, Decoder ROM, 8425 SY2101A at H1
5xxxxx (X35101) – Complete. ROM 1.
525612 (449608) – Complete. ROM 2. 4116 memory

CPU Boards: Late Defender

Y – 472326 – No boot (R8570 Late Defender) [Repaired DL 100% working 04/11/2013]
Y – 478291 – no RAM, missing decoder, missing ROM board connector pins. 30/08/2014 – replaced missing ROM board connector pins, new memory, modified to use 2716 decoders. Repaired and good! (although the RAM may be a little flakey and need checking). 5101 CMOS memory replaced as per http://www.arcadesolution.com/cmos1.html
N – 481368 – Original texan board – (R8570 Late Defender) – [Andy has from repair]
Y – 491781 (18) – green screen (no boot), 4 lights – Rom 6/4 – (R8570 Late Defender) [C] Repaired and good!
N – 497009 – No Tested – No Decoder or memory – (R8570 Late Defender)

ROM Boards

Y – 151410 – Red – Tested Working!
N – 34101 – 4 LEDs
Y – 469381 – Green – Tested Working!
Y- 471392 – (Andy New Lead) – Blue ROMs = 2532 1, 2, 3 – Tested Working!
Y – 473267 – Green ROMS – ROM 3 replaced and legs resoldered on ROM 2 – Capacitor replaced – Tested Working!
Y – 475864 – (Alex New Lead) – ROMs all verified – Lead pushed tighter – Tested Working!
Y – 481368 – (Original Texas board) – replaced PIA 22/06/2014 – Tested Working! (lead is flakey on ROM board end 10/05/2015)
Y – 483671 – (US 4 with no leads) – Lead replaced, patch made for broken trace – Tested Working!
Y – 498547 – Cleveland coin co. (Red) – Test Working!
Y – 526800 – ROM error – Checked and replaced Rom 3 and Rom 4 – Test Working! (10/05/2015)
N – 528490 (x07321!) – boots fine then resets – think ROM 3 needs replacing

Interface Boards

472299 – 5772-09614-XI (8109) – Late Defender – Floating outputs
472446 – 5772-09614-X1 – late Defender – Floating outputs
502941 – 5772-09641-XI – Late Defender
540104 – 5772-09680-00 – Stargate+ (x)
544010 – dirty 09680-00 (washed) – Stargate+ (x)
581479 – 5772-09680-00 – Untested (clean, says OK)
583060 – 5772-09680-00 – Untested (clean, says OK)
600438 – 5772-09680-00 (C-8783) – Stargate+ (x)
601058 – dirty 09680 (washed) 8207 – 5772-09680-00 – Stargate+ (x)
X748X2 – dirty 09680-00 (washed, missing connector) – Stargate+
610955 – 5772-09680-00 – Untested (clean, says OK)
615674 – 5772-09680-00 – Untested (clean, says OK)
622497 – 5772-09680-00 (very clean) – Stargate+ (x)
02353 – 5772-09680-00 – Untested

Sound Boards

456715 – IC-2001-146-6 (Rom1)
491004 – IC-2001-146-5 (Rom1 – W1, W2, W5, W7, W9, W10, W15 = Defender) (Original Texas Board) – Fully Working!
609082 – D-8224-3006
596798(0) – D-8224-300 a(Rom2)
524504 – IC-2001-146-6 (Rom1) [Repaired and working DL 4/11/2013] – Fully Working!
572462 – 146-6 (Rom1) [DL]
604933 – D-8224-3006 (Rom2 780 – W1, W3, W4, W5, W7, W10, W15 = Robotron / Joust) – Fully Working!

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