© June 2006 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO163/165/166/167/203/205/206/207/237
CONTENTS
CONTENTS
1. SYSTEM BLOCK DIAGRAM........................................................................................1-1
1.1 e-STUDIO163/166/203/206.................................................................................................1-1
1.2 e-STUDIO165/205...............................................................................................................1-2
1.3 e-STUDIO167/207/237........................................................................................................1-3
2. GENERAL DESCRIPTION OF MAIN IC.......................................................................2-1
2.1 ASIC (EC/N106) ..................................................................................................................2-1
2.1.1 Functions..................................................................................................................2-1
2.1.2 Pin assignment.........................................................................................................2-1
2.1.3 Signals......................................................................................................................2-2
3. ELECTRIC CIRCUIT DIAGRAMS.................................................................................3-1
3.1 Main circuit (MAIN board: e-STUDIO163/165/203/205) ......................................................3-2
3.2 SRAM circuit (SRAM board: e-STUDIO163/165/203/205) ................................................3-36
3.3 Laser drive circuit (LDR board)..........................................................................................3-37
3.4 H-sync signal detection circuit (SNS board) ......................................................................3-39
3.5 Fuse circuit (FUS board)....................................................................................................3-40
3.6 Control panel circuit (LPNL board: e-STUDIO163/166/203/206).......................................3-41
3.7 Control panel circuit (HPNL board: e-STUDIO165/205)....................................................3-45
3.8 Paper feed control circuit (PFC board: GH-1050)..............................................................3-49
3.9 Facsimile circuit (FAX board: GD-1220)............................................................................3-53
3.10 Telephone line network control circuit (NCU board: GD-1220NA/TW)..............................3-58
3.11 Telephone line network control circuit (NCU board: GD-1220EU/AU) ..............................3-60
3.12 TELBOOK circuit (TELBOOK board: GJ-1040).................................................................3-62
3.13 External keyboard circuit (OTK board: GJ-1040)...............................................................3-63
3.14 Memory circuit (MEM board: GC-1240).............................................................................3-64
3.15 Main circuit (MAIN board: e-STUDIO166/206) ..................................................................3-65
3.16 Main circuit (MAIN board: e-STUDIO167/207/237) ...........................................................3-99
3.17 SRAM circuit (SRAM board: e-STUDIO166/167/206/207/237) .......................................3-134
3.18 Control panel circuit (HPNL board: e-STUDIO167/207/237)...........................................3-135
3.19 Paper feed control circuit (PFC board: GH-1060)............................................................3-139
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