Samsung SV-DVD50, Service Manual

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Circuit Operating Descriptions
7-10
(5) Stop Mode
The VCR enters the stop mode when the stop button is pressed during playback, record, rewind and fast forward
mode. When trouble is detected, the VCR enters the stop mode to protect the tape and mechanism or when the
tape reaches the end, etc.
• State Input ;
Power switch on position.
Stop button operation in all mode, except for timer recording and XPR.
(6) Loading/Unloading Operation
mechanism operation in loading/unloading is as described previously.
• Signal Processing ;
• Audio, video record/play ;
Micom controls the AV1 chip by IIC line.
(7) Play Mode
• State input ; Play button operated in stop, fast forward, rewind, forward search, reverse search, still mode, etc.,
• Indication output ;
“PLAY” lights in LED display.
• Output at ;
IC601 Pin 25 (CAP F/R) : Hi
(8) Trick Play Mode
Trick play modes are classified into forward search, reverse search, still, slow and frame advance.
Audio signal is muted. V-lock is controlled by pin 31 of IC601.
(9) Forward Search Mode
5 Times play speed search in SP.
• State input ; Press the fast forward button on the VCR front panel or the remote control in play or still mode.
• Indication output ; First digit rotates in LED display.
• Output at ;
IC601 Pin 25 (CAP F/R) : Hi
(10) Reverse Search Mode
5 times play speed reverse search in SP.
• State input ; Press the rewind button on the VCR front panel or on the remote control in play or still mode.
• Indication output ; First digit rotates in LED display.
• Output;
IC601 Pin 25 (CAP F/R) : Low