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l'.) I l'.) l'.) operation speed. TADLE 2-3-2. LED IRDICATIONS ""d ~ ~ < REKARK > LED INDICATIONS CPD OPERATION SPEED RED ORANGE GREEN 6HHz SHHz 10MHz ~~ o loz:I o ""d t"'J § ~ Jumper connector J1 is inhibitted to change setting. (<strong>Al</strong>ways connect betvJeen A to C ) 2.3.1.3 Select NPX (80287) Operation Speed The EQUITY III+i EPSON PC AX has two kinds of NPX operation speed modes. TADLE 2-3-3. NPX OPERATION SPEED NPX OPERATION SPEED MODES OPERATION SPEED (CPU OPERATION SPEED) 1) CPU CLOCK MODE (~nlz) ( SHHz) ( 1000mz) 2) 8MHz MODE (6NHz, SMHz, 1OHHz) 4HHz 5.3HHz 6. lNHz 8MHz A selection is performed by setting of jumper connector Jl and J2 on the ANTA board (Main circuit board). Jumper connector setting of Jl and J2 are listed in CHAPTER 7. < REKARK > NPX ~.> divides the CPU clock into three in the CPU clock mode. In CPU CLOCK MODE, the NPX divides the CPU clock into three. But 8}1Hz mode, the NPX does not divide SMHz clock.
N I N W 2.3.1.4 Oscillator There are three oscillators on the ANTA board. The GAATCK inputs these signals and produces the following clock signals. TABLE 2-3-4. OSCILLA'l'OR CLOCK SIGNAL FLOW OSC CLOCK SPEED GAATCK DIVIDE 'l'BE CLOCK IN'l'O; GAATCK OU1PUTS; CONNECT 'l'O; (MAJOR CHIP) 48lvlliz 20MHz 14 .31818MHz 1/3 1/4 1/6 1/8 1/1 1/1 1/12 16MHz 12MHz 8MHz 6MHz 20HHz 14.31818MHz 1.19l-1Hz CPU CPU NPX KEYBOARD CONTROLLER CPU OPTION SLOT TIMER COUNTER ~.> ~ ~ ~ ~ ~ cn o l'Zj ~ to:j ~t-I oZ
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 and 42: RKV.A PRINCIPLES OF OPERATION 2.2.2
Page 43 and 44: REV.B PRINCIPLES OF OPERATION +12 +
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: N I N """ 2.3.1 System Clock Genera
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
Page 101 and 102:
REV.B PRINCIPLES OF OPERATION VFO c
Page 103 and 104:
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
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REV.A PRINCIPLES OF OPERATION 1) DE
Page 123 and 124:
REV .A PRINCIPLES OF OPERATION (10)
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REV.A PRINCIPLES OF OPERATION (3) B
Page 127:
CHAPTER 3 OPTIONS TAßlE OF CONTENT
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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
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t (3) Error bit pattern (1 second)
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tt-' t-' 22H 23H 25H II GAATIO 8259
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2AH 2BH 8254-2 RAM, GAATIO option b
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t~ I.n (3AH) Unfixed value (Address
Page 147 and 148:
,... I ..... .t:' (3FH) Unfixed v
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ol:l I t \C (45H) WHDC Unfixed
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.p I N ""'" Parity check 1 80000
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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
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DIASSEMBLY AND ASSEMBLY REV.A 5.1.7
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DIASSKMBLY AN» ASSKMBLY HEV.A 5.1.
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DISASSEMBLY AND ASSEMBLY REV.A 5.1.
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DISASSEKBLY ABO ASSEKBLY REV.A 5.1.
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DISASSEMBLY AND ASSEMBLY REV.A 5.3
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DISASSEMBLY AND ASSEMBLY REV.A 5.3.
Page 171:
CHAPTER 6 ADJUSTMENT AHD MAINTENANC
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7-1-8 Factory Settings (SPFG Board)
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DIAGRAMS AND REFERENCE MATERIALS RE
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DIAGRAKS AHn REFERENCE MATERIALS HE
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DIAGRAHS AND REFERENCE MATERIALS RE
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DIAGRAHS AHn REFERENCE MATERIALS RE
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DIAGRAMS AN» REFERENCE MATERIALS R
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D1AGRAKS AND REFERENCE MATERIALS RE
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DIAGRAMS AHn REFERENCE MATERIALS HE
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DIAGRAMS AND REFERENCE MATERIALS HE
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DIAGRAMS AHn REFERENCE MATERIALS RE
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DIAGRAMS ARD REFERENCE MATERIALS RE
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DIAGRAKS AND REFERENCE MATERIALS HE
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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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DIAGRAMS AN» REFERENCE MATERIALS H
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DIAGRAMS AN» REFERENCE MATERIALS H
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DIAGlU\MS AND REFERENCE MATERIALS H
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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
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1 2 3 4 +5 +5 A B c o E F G H R8 Sl
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1 2 3 4 5 +5 +5 A B c o E F G H R8
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1 2 3 4 5 +5 +5 A B c o E F G H R8
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A B c D E F G H J K L M N o p 4~3 ~
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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
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A B c o E F G H 1 2 3 4 5 6 I ọ
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* +5V -r ,,;I: R2 01 ~ J27K + ~ CI
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I A B c o E F G H T 2 3 JI -DRIVE S
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134 132 126 500 \ --- ~ I 103 /~'~3
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EPSON OVERSEAS MARKETING LOCATIONS
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