Epson 2180 Service Manual - Page 22
C272MAIN Board
UPC - 010343815766
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LQ-2180 1.4.1 C272MAIN Board The C272MAIN Board is composed of the CPU (TMP96C141), gate array (E05B42), program ROM that integrates the CG, EEPROM, and 24 transistors used to drive the printhead. Revision A Note the C272MAIN Board has the following 4 versions; 1) Standard version, 2) NLSP version, 3) Korean version, and 4) Thai version. However, ICs are attached in two different ways, which varies depending on the version, as shown in the red boxes in the figure below. C N 17 CN3 CN4 CN5 CN6 H e a d D r iv e T R A N S IS T O R IC 1 2 A 2 9 1 7 S LA 7024M CN1 IC 1 0 P -R O M (4 M ) IC 7 C G -R O M (8 M ) C N 11 C N 10 C N 16 CN8 C N 12 CN7 CN9 C N 13 IC 6 CN2 ( K o r e a n V e r s io n O n ly ) C N 14 IC 3 G ATE AR R AY E 05B 42 C N 15 IC 1 0 P ro g ra m & C G ( 8 M b it) P r o g r a m ( 4 M b it) IC 7 C G R O M ( 8 M b it) N o t M o u n te d IC 6 C G R O M ( 8 M b it) ( S ta n d a r d /N L S P /T h a i) IC 5 IC 1 C P U E E P R O M TM P 96C 141 IC 1 0 IC 6 (K o re a n ) Figure 1-4. C272MAIN Board Product Description Main Components 22