NCD Explora PRO (XQ)

Some reverse engineering about this thin client.

State: GPU seems faulty and corroded, need replacement. Rom have been already replaced. Maybe get a PPC debugger/emulator ice-thing could help debugging.

Refs on chipManufacturerQtyDescriptionDatasheet
{ti} 5BCE 66k
HCT374
TI 3 Octal edge-triggered d-type flip-flops with 3-state output PDF
{S} Y57AD
74F139
National Semiconductor 1 Dual 1-4 decoder/multiplexer PDF
{S} 58AD
LM2576S
-5.0 P+
National Semiconductor 1 3A Step-down regulator 5V fixed PDF
{L} GAL16V8B
xxx
xxx
Lattice 4 CPLD PDF
{M} ACT04
XAA602
Motorola 1 Hex Inverter PDF
{IC Designs}
061ASC-1
9548MNK
IC Designs 1
{S3 Vision868™} IABE3
86C868-P
9546 38010
HONG KONG
S3 1
{NEC Japan}
424210-60-G
9540HU020
NEC 4 4-MBIT Dynamic RAM PDF
{AT&T}
PrecisionDAC
ATT20C409-13
9606T 19874743
AT&T 1 16-Bit Interface RAMDAC Dual Clock Synthesizers
{S} E58AB
DS14C241WM
National Semiconductor 1
{} LANF7236G-1
DEL 9544
1
{AMD} PCnet™-32
AM79C965AKC
9601APB BT
1993 AMD
AMD 1
{IBM PowerPC™} 403GA
PPC 403GA-JC33C1
1Q03012PQ 26H4201
IBM 1 PowerPC 403GA CPU
{M} F257A
XAA549
Motorola 1
{triangle} T545
1117
1
{} 35104S
CSi60
1
{P} P174FCT
257TW A
9547B0C
3
{SEC KOREA}
540Y
KM48C2100AJ-6
SEC 4
{S} 57DV
LM386
M-1
National Semiconductor 1
{S} S9452BH
DP8392CV-1
National Semiconductor 1
{triangle JAPAN}
SLI74CTF0A
F5Y0 119
SEIKO EPSON GROUP 1