File information: | |
File name: | HFP0460.PDF [preview HFP0460] |
Size: | 60 kB |
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Mfg: | Sony |
Model: | HFP0460 🔎 |
Original: | HFP0460 🔎 |
Descr: | Sony HiFi Service Bulletin HFP0460.PDF |
Group: | Electronics > Other |
Uploaded: | 02-11-2021 |
User: | Anonymous |
Multipart: | No multipart |
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Decompress result: | OK | |
Extracted files: | 1 | |
File name HFP0460.PDF Hi-Fi Products CSA-13 Service Bulletin Sony Service Company - Technical Services A Division of Sony Electronics Inc. Sony Drive, Park Ridge, New Jersey 07656 Model: HCD-C33/C55 No. 460 Subject: Initialization Information Date: November 27, 1995 Symptom: (**) Sequence of events during Initialization Reference: Tokyo fax PRINTED IN USA Autoflagged - NO PRINTED ON RECYCLED PAPER Hi-Fi Products Service Bulletin No. 460 Tray Open/Stock-In Function Begin - Open/Stock-In Wait for completion of Open (CF1*)/Stock-In(CF2*)cycle. 100 msec. Brake 150 msec PWM push 100 msec Brake (again) Confirm - Open/Stock In Completion If Open/Stock-In Completion If no Open/Stock Completion End Push with PWM *Cf1= Open Completion (Out-SW is On or closed, and In-SW is OFF or open) *Cf2= Stock-In Completion (Stock-In-SW is ON or closed) Hi-Fi Products Service Bulletin No. 460 Tray Closed/Stock -Out Function Begin Close/Stock-Out Wait for close (Cf3*)/Stock-Out (Cf4*)completion 40 msec reverse Turning After 100 msec braking, confirm Close/stock-out Completion If Close/Stock-out Completion If not Close/Stock-Out Completion Begin Close/Stock-Out (again) Wait for Close/Stock-out Completion After 100 msec braking, confirm Close/Stock-out If confirmed If not confirmed Positioning of tray in Mid position by PWM End, with elevator at Mid position *Cf3= Open Completion (Out-SW is OFF or opened, and In-SW is ON or closed) *Cf4= Stock-Out Completion (Mid-Sense, photo sensor, is On or Mid-Sw is OFF) Hi-Fi Products Service Bulletin No. 460 Positioning of Tray in a Mid Position Confirm Mid Position* If yes, End If not at Mid Position Judge direction by Mid-Sw ON/OFF, Move tray by PWM When in Mid Position, apply braking for 100 msec * Mid Position = (Mid-Sense, photo sensor, is ON). Hi-Fi Products Service Bulletin No. 460 Elevator Up & Down Movement When Count SW is OFF, "Mechanism Initialization" |
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