Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por:![]() |
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Sony | EVS800 | SERVICE MANUAL CORRECTION: RMT-424 EXPLODED VIEW | There is an error on page 313 of the service manual. | ||
Sony | KV2729R | DARK PICTURE, OPEN R-552 ON A BOARD | With the brightness and picture control to max. picture wasvery dark. This makes the second unit I have found with this problem. | ||
Sony | SLHF750 | UNIT DEAD | Unit was completely dead, i.e., no ON/OFF function, no displayof any kind. Tests revealed all DC voltages present and clock pulses werealso ok. Clue to problem was pin 17, IC-1 on (FL-11) board. It neverwent low, but always had 3.5 VDC on it. Obvious | ||
Sony | CCDV5 | DRUM MOTOR DOES NOT START WITHOUT HELP OF BATTERY | Drum motor does not start by itself on battery, but it workson AC. I replaced IC-509, 510 and 303 without avail. The only way tostart the drum on battery is by giving it a quick spin when it starts torock. -HQ COMMENTS: One of the components on the bo | ||
Sony | D15 | INCORRECT PART NUMBER IN MANUAL | Part number is wrong. | ||
Sony | KV2771R | PICTURE FLICKERS, REPLACE IF BLOCK | When channel is changed, picture would flicker for 2 or 3seconds. Scoping the detector output you could see the video flicker. | ||
Sony | KV2680R | AUDIO ONLY ON STEREO STATIONS, REPLACE LPF | Customer complained of low volume and no sound on non-stereostations. I also found that when going to (both) modes I had no audio. | ||
Sony | WM35 | PART NUMBER FOR RUBBER GASKET OVER CONTROL BUTTONS | The rubber which is around the control buttons is not listedseparately. You have to order the cabinet assembly. Is there a partnumber for the membrane? The units are used by different companies fora tape tour in tourist facilities. The constant use c | ||
Sony | CFSD20 | DIRECTION LEVER STICKS/INOPERATIVE | Orange wire between S401-3 and (MD) board gets caught betweenwiring guide D (230) and button (9) on manual button lever (218). Some-times the button pushes the wire out of the way, other times not. | ||
Sony | SLHF840D | INCOMPLETE THREAD THEN EJECT | Unit would thread part way then unthread and eject. Could notfind any problem with the switches or end of tape sensors. The symptomsindicated a problem with rotation detectors but this style chassis doesnot have detectors under the reel tables. Found | ||
Sony | SL2400 | POOR PERFORMANCE AT LOW (105VAC) LINE VOLTAGE | Loose servo lock at low line voltages (105VAC). Some unitshave this problem and others do not. Is there something I should bechecking in the power supply, or is this variation normal? -HQ COMMENTS: The power requirements of this unit are 120VAC+/-10%. | ||
Sony | KV1370R | AUDIO OUTPUT FAILURE, SEE SERVICE BULLETIN #291R | Late production of KV-1370R uses discreet audio outputs thatfail and should be included in TV service bulletin No. 291R. The samecircuit as KV-1365, 1395, 1396 and 1397. -HQ COMMENTS: We will add the above models to the Service Bulletin No.291R. | ||
Sony | WMD6 | DISTORTION IN RIGHT CHANNEL | Low level distortion in right channel in record mode. FoundC-203 open. | ||
Sony | KV25DXR | ALL DISPLAYS APPEAR IN BLACK/HMH AND RGB BLANKOUT | All on screen displays ere black. HMH and RGB would blank outthe screen when they were selected. Found no output from IC306 - RGBoutput pins. Found no H.V. Blk. pulse on pins 8 and 9 going into IC306.Traced this back to (BD Board) output CKEY+UDHBLK. | ||
Sony | CCDV110 | NO REEL COUNTER OPERATION | Reel counter looks like its trying to count (1st digit seemsto flicker) but stays at zero. |