7521Plus / N N/B MAINTENANCE
8.6 KEYBOARD(K/B)
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| +3V |
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| KBD_US/JP# |
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| RP520 |
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SH6 |
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| SH20 |
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| KI[0~7] |
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| 25 | J5 | |
U24 |
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| KO[0~15] |
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SIS 630S |
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| SH20 | |||
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| +5V |
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| RP18 |
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| FA5 | J502 |
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| K/M CLK |
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| SH20 | |||
SH18 | IOW# | 97 |
| 20 |
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| 5 | ||||
U14 |
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| L3 | |||||||
| M DATA |
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| 2 | ||||||
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| 58 |
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| IOR# | 96 |
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| 4 | ||||
U31 | H8/3434F | 68 | K/M DATA |
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| 1 | C6 | ||||
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| 11 | M CLK |
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| 6 |
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| IRQ1 | 53 |
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| KEYBOARD |
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LPC | IRQ12 | 54 | 57 |
| H8/T_DATA | L54 |
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| J515 | |||
TO | CONTROLLER |
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| SH21 | |||||
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| 10 |
| H8/T_ CLK | L53 |
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| L55 | ||
ISA | SD[0:7] |
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| C262 | ||
W83626F |
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| SW1 |
| J500 |
| CHARGE |
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| 2 |
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| B.D |
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| X2 |
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| SW2 |
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| 3 |
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| 16MHz |
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| T/P SWITCH B.D |
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| 95 |
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| SH12 |
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| U507 |
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| RP7 | BAT_D | 2 |
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| J3 | J501 | |
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| SH12 | 16 | QSB0# | KI1 | ||||
| KBCS# 74CBTD |
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| H8_KBCS# |
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| BAT_C | 1 |
| 15 | QSB1# | KI2 | ||
| 3384 |
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| U11 | |||||||
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| 14 | QSB2# | KI3 | |
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| W83601R 13 | QSB3# | KI4 | ||
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| 7 | QSB4# | KI5 |
+5V
F1
PS/2 Mouse+5V
SW2SW3
SW B.D
117
