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PRINCIPLES OF OPERATION REV.A +,~ T1 R38 lOOK + 017 ,-------, I R34 I R36 27 R35 26 I , I L ...J FIGURE 2-2-21. POWER GOOD SIGNAL GENERATION CIRCUIT I (Primary voltage proportion circuit) 2-14
REV.B PRINCIPLES OF OPERATION +12 +5 line -12V line +12 line R38 R39 R40 A~-"'" 09 010 R 41 R 42 FIGURE 2-2-22. POWER GOOD SIGNAL GENERATION CIRCUIT 11 2-15
Page 1 and 2: EPSON pe AX TECHNICAL MANUAL Seiko
Page 3 and 4: PRECAUTIONS Precautlonary notations
Page 5: PREFACE Thls manual descrlbes the t
Page 9: CHAPTER 1 PRODOCT DESCRIPTION TAßL
Page 12 and 13: PRODUCT DESCRIPTION REV.A WX Clock
Page 14 and 15: PRODUCT DESCRlP TION REV.A 1.2.1 Ma
Page 16 and 17: PRODUCT DFßCRIPTION REV.A 1.2.5 D5
Page 18 and 19: PRODUCT DESCRlPTION HEV.A 1.3 HARDW
Page 20 and 21: PRODUCT DESCRIPTION HEV.A TABU 1-3-
Page 22 and 23: PRODUCT DESCRIPTION REV.A FIGURE 1-
Page 24 and 25: 2.3.9 2.3.10 2.3.10.1 2.3.11 2.3.12
Page 26 and 27: 2-3-14 2-3-15 2-3-16 2-3-17 2-3-18
Page 29 and 30: REV.A PRINCIPLES OF OPERATION 2.1 H
Page 31 and 32: REV .A PRINCIPLES OF OPERATION 1 D1
Page 33 and 34: REV.A PRINCIPLES OF OPERATION 1) If
Page 35 and 36: REV . B PRINCIPLES OF OPERATION 2.2
Page 37 and 38: REV.A PRINCIPLES OF OPERATION A vol
Page 39 and 40: HEV.A PRINCIPLES OF OPERATION Chara
Page 41: RKV.A PRINCIPLES OF OPERATION 2.2.2
Page 45 and 46: REV.A PRINCIPLES OF OPERATION TABLE
Page 47 and 48: N I I-' \Q 2 .3 ARTA MAHl CONTROL B
Page 49 and 50: N I N """ 2.3.1 System Clock Genera
Page 51 and 52: N I N W 2.3.1.4 Oscillator There ar
Page 53 and 54: N 2.3.2 System Reset Signal Generat
Page 55 and 56: N +5·5 ~Hls~ CN3~--·"'-" (j flJ5:
Page 57 and 58: t-,) I t-,) ID 2.3.3.3 Jumper Conne
Page 59 and 60: N ( OA TA BUS C~ TO FRO"" RA"" RA""
Page 61 and 62: N I ~ ~ 2.3.4.2 Circuit Operation o
Page 63 and 64: N I ~ To int......l ....ry GAATCK _
Page 65 and 66: MOlS l :;1 MOl l@j { i~~~TRI l READ
Page 67 and 68: N I wIQ - 1. . . I :>
Page 69 and 70: !',) I oll J-I 2.3.5 "C 1/0 Devic
Page 71 and 72: N },. w The LS612 has sixteen 12-bi
Page 73 and 74: N I ~ GAATCK 10 GAATM21 I ino OMA 1
Page 75 and 76: N I 01> -..I GAATCK { CPU GAATM' @
Page 77 and 78: N I ~ (16-bit bus operation) * NOTE
Page 79 and 80: N I \Jl ~ 2.3.8 Command Delay Signa
Page 81 and 82: INT , \ DTR 00 DEN ) t +,5 INT..H C
Page 83 and 84: N I VI \oll lOG......T... ' TOGur..
Page 85 and 86: N I VI GAATCK GAATAB GAATRF l5590 a
Page 87 and 88: N I VI \Cl - _.... -- - ~ AATRF GAA
Page 89 and 90: N ~,... 2.3.14 Keyboard Interface C
Page 91 and 92: N ~ IJ,) KID CLK KID DATA GAATCK GA
Page 93 and 94:
REV.A PRINCIPLES OF OPERATION 2.4 M
Page 95 and 96:
HEV.A PRINCIPLES OF OPERATION Data
Page 97 and 98:
REV.A PRINCIPLES OF OPERATION 1.2 M
Page 99 and 100:
REV.A PRINCIPLES OF OPERATION 2.4.3
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REV.B PRINCIPLES OF OPERATION VFO c
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REV.A PRINCIPLES OF OPERATION If DS
Page 105 and 106:
REV .A PRINCIPLES OF OPERATION 2.5
Page 107 and 108:
REV.A PRINCIPLES OF OPERATION 2.5.2
Page 109 and 110:
REV .A PRINCIPLES OF OPERATION T6 ~
Page 111 and 112:
REV .A PRINCIPLES OF OPERATION 2.5.
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REV.A PRINCIPLES OF OPERATION (4) I
Page 115 and 116:
HEV.A PRINCIPLES OF OPERATION 2.5.7
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REV.A PRINCIPLES OF OPERATION ii) E
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REV.A PRINCIPLES OF OPERATION Key C
Page 121 and 122:
REV.A PRINCIPLES OF OPERATION 1) DE
Page 123 and 124:
REV .A PRINCIPLES OF OPERATION (10)
Page 125 and 126:
REV.A PRINCIPLES OF OPERATION (3) B
Page 127:
CHAPTER 3 OPTIONS TAßlE OF CONTENT
Page 131 and 132:
REV.A TROUBLESHOOTIBG 4.1 Service T
Page 133 and 134:
RKV.A TROUBLESHOOTING INSTANCE 1 In
Page 135 and 136:
REV.A TROUBLESHOOTIBG 4.3 RESPONSE
Page 137 and 138:
t PORT 80 01H 04H 05H 06H 07H or 08
Page 139 and 140:
t (3) Error bit pattern (1 second)
Page 141 and 142:
tt-' t-' 22H 23H 25H II GAATIO 8259
Page 143 and 144:
2AH 2BH 8254-2 RAM, GAATIO option b
Page 145 and 146:
t~ I.n (3AH) Unfixed value (Address
Page 147 and 148:
,... I ..... .t:' (3FH) Unfixed v
Page 149 and 150:
ol:l I t \C (45H) WHDC Unfixed
Page 151:
.p I N ""'" Parity check 1 80000
Page 154 and 155:
Fi gure 5-1-1 5-1-2 5-1-3 5-1-4 5-1
Page 156 and 157:
DIASSEMBLY AND ASSEMBLY HEV.A 5.1.3
Page 158 and 159:
DIASSEMBLY AND ASSEMBLY REV.A 5.1.7
Page 160 and 161:
DIASSKMBLY AN» ASSKMBLY HEV.A 5.1.
Page 162 and 163:
DISASSEMBLY AND ASSEMBLY REV.A 5.1.
Page 164 and 165:
DISASSEKBLY ABO ASSEKBLY REV.A 5.1.
Page 166 and 167:
DISASSEMBLY AND ASSEMBLY REV.A 5.3
Page 168 and 169:
DISASSEMBLY AND ASSEMBLY REV.A 5.3.
Page 171:
CHAPTER 6 ADJUSTMENT AHD MAINTENANC
Page 174 and 175:
7-1-8 Factory Settings (SPFG Board)
Page 176 and 177:
DIAGRAMS AND REFERENCE MATERIALS RE
Page 178 and 179:
DIAGRAKS AHn REFERENCE MATERIALS HE
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Page 182 and 183:
DIAGRAHS AND REFERENCE MATERIALS RE
Page 184 and 185:
Page 186 and 187:
Page 188 and 189:
DIAGRAHS AHn REFERENCE MATERIALS RE
Page 190 and 191:
DIAGRAMS AN» REFERENCE MATERIALS R
Page 192 and 193:
D1AGRAKS AND REFERENCE MATERIALS RE
Page 194 and 195:
DIAGRAMS AHn REFERENCE MATERIALS HE
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Page 198 and 199:
DIAGRAMS AND REFERENCE MATERIALS HE
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Page 202 and 203:
DIAGRAMS AHn REFERENCE MATERIALS RE
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Page 208 and 209:
Page 210 and 211:
Page 212 and 213:
DIAGRAMS ARD REFERENCE MATERIALS RE
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Page 220 and 221:
DIAGRAKS AND REFERENCE MATERIALS HE
Page 222 and 223:
Page 224 and 225:
Page 226 and 227:
DIAGRAMS AB» REFERENCE MATERIALS R
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DIAGRAMS AND REFERENCE MATERIALS KE
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DIAGRAHS AND REFERENCE MATERIALS HE
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Page 246 and 247:
DIAGRAMS AN» REFERENCE MATERIALS H
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Page 250 and 251:
DIAGRAMS AN» REFERENCE MATERIALS H
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Page 254 and 255:
DIAGlU\MS AND REFERENCE MATERIALS H
Page 256 and 257:
Page 258 and 259:
Page 260 and 261:
Page 262 and 263:
Page 264 and 265:
DIAGRAMS ABO REFERENCE MATERIALS RE
Page 267 and 268:
8.1 MAJOR PARTS 8.1.1 Excluding P.C
Page 269 and 270:
8.2 COMPONENT PARTS 8.2.1 ANTA Boar
Page 271 and 272:
Unit Description ANTA Board (6) Mod
Page 273 and 274:
8.2.3 ANT-RMA Board Unit Modificati
Page 275 and 276:
8.2.5 SPFG Board Unit Modification
Page 277 and 278:
8.3.2 ANT-RM/RMA Board Jumper Setti
Page 279 and 280:
8.3.4 WHDC Board Jumper Settings Un
Page 281:
(Xl .... I 01 8.4.2 P.C.B Unit Boar
Page 285 and 286:
1 2 3 4 +5 +5 A B c o E F G H R8 Sl
Page 287 and 288:
1 2 3 4 5 +5 +5 A B c o E F G H R8
Page 289 and 290:
1 2 3 4 5 +5 +5 A B c o E F G H R8
Page 291 and 292:
A B c D E F G H J K L M N o p 4~3 ~
Page 293 and 294:
I T MD 111 I" 13 12 • 11 10 9 •
Page 295:
PG TO POWER SUPPlY UNIT NO CONNECT
Page 298 and 299:
OUTPUT SOCKET ® RIII CI06 O.OI/lF
Page 300 and 301:
T DACK2 2 3 4 t- 0 ...J CJ) Z 0 5 0
Page 302 and 303:
A B c o E F G H 1 2 3 4 5 6 I ọ
Page 304 and 305:
* +5V -r ,,;I: R2 01 ~ J27K + ~ CI
Page 307 and 308:
I A B c o E F G H T 2 3 JI -DRIVE S
Page 309 and 310:
134 132 126 500 \ --- ~ I 103 /~'~3
Page 311 and 312:
EPSON OVERSEAS MARKETING LOCATIONS
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