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Dear Sirs,
Thank you for the fast support, the manual does provide all necessary information to repair the radio. All schematics are in a good quality for reading.
The manual fits 100% to my requirements as a technican.
Kind regards Thomas
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the big video recorder format s-vhs many features delicate in loading system of the cassette. Such machines are no longer manufactured, it would be too expensive.
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THIS MANUAL IS VERY GOOD AND VERY CLEAR
PLEASE NOTE IT DOES NOT CONTAIN THE SETUP INFORMATION TO ALIGHN THE GEARS IN THE CD MECH IT DOES SHOW ALL THE PARTS AND THEIR LOCATIONS .
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Complete service and operation manual. All schematics are there, all circuit boards AND add-on boards. Including exploded views ,component names and specifications. Also electrical and mechanical adjustment procedures are in this manual. This manual also covers the more advanced BR-S811E unit. Scan quality is fair and usable.
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High quality scan of original Service Manual. Everything´s fine!
5
6
7
8
No.
4
Symptoms
A tray cannot be opened. (An opening screen is displayed on the monitor)
Diagnosis Contents
Does the voltage of CP2302-pin 3 and pin 1 on the DVD MT Assy change normally ? Pin 5 (SW2(TRIN)): Tray is fully closed: "L" Pin 3 (SW1(TROUT)): Tray is fully opened: "L" Is a LOAD-DRV signal reaching ?
Possible Defective Points
Tray SW
A
DVD MT PCB Assy DVD IC (IC4001)
Are the signals output from IC2301-pin 5 and pin 6 (CP2302-pin 4 and pin 5) on the DVD MT Assy ? DVD MT PCB Assy Pin 5: Approx. 4.5 V during opening tray approx. 0V during closing tray. FTS Driver IC (IC2301) Pin 4: Approx. 0V during opening tray approx. 4.5 V during closing tray. Are wires of CP2302 and CP2303 on the DVD MT Assy disconnected or damaged ? Does the voltage of CP2303-pin 5 change by pressing the Inside switch. 5 Playback impossible (no focusing) Are the signals output from IC2301-pin 9 (F+) and pin 8 (F�) on the DVD MT Assy ? Does 650-nm LD emit light ? Does a pickup lens move up / down ? Does an actuator spring bend ? Are plastic parts damaged ? Or is a shaft detached ? Is the turntable detached or tilted ? Is flexible cable of CP2301 on the DVD MT Assy disconnected or damaged ? Is signal output from IC4001-pin 42 (FOSO) on the DVDMT Assy ? (Device control of about 1.4 V is output usually. It is fluctuated by about ± 250 mV with focus up / down.) 6 Playback impossible (Spindle does not turn) Are the signals output from IC2301-pin 13 (MOT SPDL�), and pin 14 (MOT SPDL+) on the DVD MT Assy ? Is pin 41, 42 (STBY) fixed LOW? Is there any part detached from the spindle motor ? Or Is there any foreign object lodged in it ? Are wires of CP2303 on the DVD MT Assy disconnected or damaged ? Is signal output from IC4002-pin 37 (DMSO) on the DVD MT Assy ? 7 Playback impossible (Playback stops) Does 650-nm LD deteriorate ? If the voltage at each both ends of R2321 and R2323 on the DVD MT Assy is 0.4 V or more, the 650-nm LD is definitely deteriorated. Does 780-nm LD deteriorate ? If the voltage at each both ends of R2320 and R2322 on the DVD MT Assy is 0.4 V or more, the 780-nm LD is definitely deteriorated. Are there scratches or dirt on the disc ? 8 Picture disturbance during playback (block noise, freeze, other) No sound (Picture is normal) Are there scratches or dirt on the disc ? Is there a problem with the format of the disc ? Connector / cable Inside switch DVD MT PCB Assy FTS Driver IC (IC2301) Pickup Mechanism section (motor) Flexible cable / connector DVD MT PCB Assy DVD IC (IC4001) DVD MT PCB Assy FTS Driver IC (IC2301) Mechanism section (Spindle motor) Flexible cable / connector DVD MT PCB Assy DVD IC (IC4001) 650-nm LD deteriorated. (When playback of a DVD is impossible) 780-nm LD deteriorated. (When playback of a CD is impossible) Disc Disc
C B
D
9
Is signal output from IC4001-pin184 and pin 186 on the DVD MT Assy DVD MT PCB Assy ? DVD IC (IC4001)
E
F
DV-490V-S
5 6 7 8
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