Brother International HL-720 Service Manual - Page 30
<HL-730/730Plus ONLY>, Fig. 2.9, <HL-720>, pins of the socket opened.
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Page 30 highlights
1.3.3 ROM A program of 512 Kbytes and the font data are stored in the ROM. A 42-pin IC socket is provided: an 8 Mbits ROM (42-pin) can be mounted to this socket normally, but a 4 Mbits ROM (40-pin) must be mounted to leave the 1st and 42nd pins of the socket opened. Fig. 2.9 1.3.4 DRAM A 4M-bit DRAM (x8 bits) is used as the RAM. Fig. 2.10 II-13
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II-13
1.3.3
ROM
<HL-730/730Plus ONLY>
A program of 512 Kbytes and the font data are stored in the ROM. A 42-pin IC
socket is provided: an 8 Mbits ROM (42-pin) can be mounted to this socket
normally, but a 4 Mbits ROM (40-pin) must be mounted
to leave the 1st and 42nd
pins of the socket opened.
Fig. 2.9
1.3.4
DRAM
<HL-720>
A 4M-bit DRAM (x8 bits) is used as the RAM.
Fig. 2.10