Sony XR-4803 service manual Mechanism Deck Section MG-25F-136, 162, 164 165 168 166 167

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(3)MECHANISM DECK SECTION (MG-25F-136)

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HP901

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M901

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Ref. No.

Part No.

Description

Remark

151A-3291-667-A CLUTCH (FR) ASSY

*152 3-019-130-01 LEVER (LDG-A)

*153 3-019-131-01 LEVER (LDG-B)

1543-020-539-01 SPRING (LD-1), TENSION

1553-020-540-01 SPRING (LD-2), TENSION

1563-020-542-01 GEAR (LOADING FT)

1573-341-753-11 WASHER, POLYETHYLENE

1583-020-533-01 HOUSING

*159 3-020-532-01 ARM (SUCTION)

1603-020-534-01 HANGER

Ref. No.

Part No.

Description

Remark

1613-933-346-01 CATCHER

1623-933-344-01 GUIDE (C)

1633-014-798-01 SCREW (HEAD), SPECIAL

1643-364-151-01 WASHER

165A-3301-267-A CHASSIS ASSY (F)

1663-017-302-01 BELT (25)

1673-936-853-01 FLYWHEEL (F)

1683-701-437-21 WASHER

HP901 1-500-157-21 HEAD, MAGNETIC (PLAYBACK)

M901 A-3291-665-A MOTOR ASSY, MAIN (CAPSTAN/REEL)

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Contents XR-4803 SpecificationsTable of Contents DiagramsFlexible Circuit Board Repairing Section General Page Page Page Page Page Section Disassembly Front Panel ASS’YCover ASS’Y Main BOARD, Heat Sink SUB PANEL, Mechanism Deck MG-25F-136Housing Section Assembly of Mechanism DeckGear LDG-FT Lever LDG-A / LDG-BGuide C Section Mechanical Adjustments Section Electrical AdjustmentsTape Deck dB=0.775 Tuner dB=1 µV FM Auto Scan/Stop Level AdjustmentAM MW Auto Scan/Stop Level Adjustment Source and Mode button MWSection Diagrams IC PIN Function DescriptionPin No Pin Name Function REL Uniso Page Page Page IC Block Diagrams Main Board IC301 CXA2509AQ-T4 IC331 LC75373EDIC351 IC611 BA3918-V2 Section Exploded Views Chassis Section1211 118 Front Panel Section102 108 107 105 111 121 114 112 104 103 113 101 117 116 106 115164 165 168 166 167 Mechanism Deck Section MG-25F-136159 158 155 154 157 156 153 152 168 151 160 163 161 162KEY Section Electrical Parts ListKEY Main Double Layer Inductor Tuner TU1 Screw +B 502 501 503504 505XR-4803