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Service Manual

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  • Contains Circuit Diagrams
  • Download
  • PDF Format
  • Complete manual
  • Language: English
Price: $4.99

Description of SONY GVA500 Service Manual

Complete service manual in digital format (PDF File). Service manuals usually contains circuit diagrams, printed circuit boards, repair tips, wiring diagrams, block diagrams and parts list. Service Manual ( sometimes called Repair Manual ) is used mainly by technicians.

If You just want to know how to use Your tv, video, mp3 player etc. You should look for Owner's Manual. After placing order we'll send You download instructions on Your email address.

The manual is available in languages: English

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Text excerpt from page 79 (click to view)
2-2. MSW Codes • The lower parts of the data of addresses 12, 16 and 1A represent the MSW codes (mode switch, mechanism position) when errors occurs. • The upper parts of the data of addresses 12, 16 and 1A represent, when the mechanism position is to be moved, the MSW codes at the start of movement (when moving the loading motor). • The lower parts of the data of addresses 13, 17 and 1B represent the MSW codes of the desired movement when the mechanism position is to be moved. ← Unloading

Releasing lock of cassette campartment

Mechanism Position MSWCode EJECT BL USE LOAD STOP TURN RECP/PB REW 1 7 3 2 6 4 0 5

0 0 0 1 = 1

0 1 1 1 = 7

Loading →

LS chassis movement range

Contents Position at which the cassette compartment lock is released. The mechanism will not move any further in the unloading direction. BLANC code. Between two codes. The mechanism will not be stopped by this code while it is operating. EJECT completion position. When the cassette is ejected, the mechanism will stop at this position. Code during loading/unloading. Code that is used while the LS chassis is moving. Normal stop position. The pinch roller separates, the tension regulator returns, and the brakes of both reels turn on.

Position at which is used when the pendulum gear swings from S to T or from T to S. PB, REC, CUE, REV, PAUSE, FF positions. The pinch roller is pressed and tension regulator is on. REW position. REW are carried at this position. The mechanism will not move any further in the loading direction.

0 0 1 1 = 3









0 1 1 1 = 7 0 0 1 0 = 2

0 1 1 1 = 7

0 1 0 0 = 4

0 1 1 1 = 7

Pinch roller is detached

0 1 1 0 = 6
Pinch roller is pressed

0 1 = 7

0 0 0 0 = 0

0 1 1 1 = 7

0 1 0 1 = 5


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