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PRINCIPLES OF OPERATION REV.B 2.2 ATRPS POWER SUPPLY UNIT ATRPS Unit is available in both 115-volt supply and 230-volt supply. Switch S1 selects either 115-volt supply or 230-v01t supply, and simultaneously switches a fuse. Basic Operation ATRPS Unit uses the Forward Converter Switching Regulation way. + 1__Ff' MOS FET FIGURE 2-2-1. BASIC OPERATION CIRCUIT 2.2.1 Primary Oscillation Circuit The HA16654 controls the MOS-FET. By supplying power to the HA16654, current flows in the liOS-FET. 2.2.1.1 Power supply circuit Power supply circuit for the HA16654 is explained by the following 2 steps: 1. From power on till the transformer for switching oscillates correctly. 2. After the transformer for switching has oscillated correctly. 1. From POWER ON till the transformer for switching oscillates correctly. The power supply circuit is shown in Figure 2-2-2. Zenor Diode D10 and Dll works so as not to supply the HA16654 with a voltage until the input voltage V reaches the fixed-level voltage. 2-2
REV .A PRINCIPLES OF OPERATION 1 D10 ~ D11 ~ V 1 + Q2 7 4 VI N HA16654 6 GND FIGURE 2-2-2. SWITCHING OSCILLATION CIRCUIT I 2. After the transformer for switching has oscillated correctly. No current is present in RIl t DIO t DII t and DI9 because the voltage supplied from DI2 and RIS is higher than the voltage supplied from Rl1 t DIO t Dl1 and D19. This causes the increase of efficiency of the ATRPS Unit. Tl ..... I R11 I 'D10 I I D11 'D19 .J t V + 7 4 VIN HA16654 9 6 GND FIGURE 2-2-3. SWITCHING OSCILLATION CIRCUIT 11 2-3
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: REV.A PRINCIPLES OF OPERATION 2.1 H
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 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
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INT , \ DTR 00 DEN ) t +,5 INT..H C
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N I VI \oll lOG......T... ' TOGur..
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N I VI GAATCK GAATAB GAATRF l5590 a
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N I VI \Cl - _.... -- - ~ AATRF GAA
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N ~,... 2.3.14 Keyboard Interface C
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N ~ IJ,) KID CLK KID DATA GAATCK GA
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REV.A PRINCIPLES OF OPERATION 2.4 M
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HEV.A PRINCIPLES OF OPERATION Data
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REV.A PRINCIPLES OF OPERATION 1.2 M
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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
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REV .A PRINCIPLES OF OPERATION 2.5
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REV.A PRINCIPLES OF OPERATION 2.5.2
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REV .A PRINCIPLES OF OPERATION T6 ~
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REV .A PRINCIPLES OF OPERATION 2.5.
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REV.A PRINCIPLES OF OPERATION (4) I
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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
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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
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REV.A TROUBLESHOOTIBG 4.3 RESPONSE
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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
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,... 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
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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
Page 174 and 175:
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
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8.1 MAJOR PARTS 8.1.1 Excluding P.C
Page 269 and 270:
8.2 COMPONENT PARTS 8.2.1 ANTA Boar
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Unit Description ANTA Board (6) Mod
Page 273 and 274:
8.2.3 ANT-RMA Board Unit Modificati
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8.2.5 SPFG Board Unit Modification
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8.3.2 ANT-RM/RMA Board Jumper Setti
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8.3.4 WHDC Board Jumper Settings Un
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(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 •
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PG TO POWER SUPPlY UNIT NO CONNECT
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OUTPUT SOCKET ® RIII CI06 O.OI/lF
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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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