Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por:![]() |
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Sony | KV2095R | RECEIVER DISPLAYED SEVERE PIE-CRUSTING (ENTIRE SCREEN), C501 | Receiver displayed severe pie-crusting throughout entirescreen. Scope shot revealed noise at pin 4, IC-301. | ||
Sony | CDXA10 | E04 ERROR MESSAGE | Symptom of E-4 error message only when mounted in car. Unitworked fine on bench. | ||
Sony | ITM500 | WALL MOUNTS | The wall mounts for these phones are listed under theaccessory and packing material as (case, tapestry). -HQ COMMENTS: I was always intrigued by this description. Thanks forputting this on an FPR. I am sure this question will surface again. | ||
Sony | KV27HFR | NO TUNING (SNOW), REPLACE 5V REG Q-112 | Complaint of no tuning (snow) channel volume brightness etc.were operating 3 times faster than normal. | ||
Sony | ITM300 | WALL MOUNTS | The wall mounts for these phones are listed under theaccessory and packing material as (case, tapestry). -HQ COMMENTS: I was always intrigued by this description. Thanks forputting this on an FPR. I am sure this question will surface again. | ||
Sony | SDP505ES | AUDIBLE HUM | Audible hum with no input. Found foreign matter between baseand collector of Q301 (regulator). This was very elusive problem as humappeared to be caused by ground loop. | ||
Sony | CDPC5F | WRONG DISC POSITION IS SELECTED | Unit intermittently selects preceeding disc position though adisc may not be in that position. For example, if a disc is in the #1position, #5 position may be selected. -HQ COMMENTS: The following upgrade solves this problem: Change R593 toa 33K and C | ||
Sony | KV1370R | INTERMITTENT TURN ON, REPLACED C115 | Unit would not turn on at times. This was very intermittent.Some days it would turn on and other days it would not. If it would notturn on, you would have to leave set for several hours and then it mayturn on. The unit would not reset. Found C115 cap | ||
Sony | KV2792R | WEAK VOLUME, CHANGE R-842 VALUE TO 330 OHM | Everything checks normal. Sub output, components confirmvoltages. Volume was set to max with moderate level coming from thespeaker. | ||
Sony | KV27DS1 | NO REMOTE OPERATION, REPLACE IC-001 | Unit would not operate with remote. Measured 75MV P to PSIRCS signal should be 5V P to P. | ||
Sony | KV27TS20 | RESISTOR R587, DIODE D518 NO SCREEN VOLTAGE | Resistor R587 was found opened, new resistor installed andburned within a few seconds. Found diode D518 at fault, diode measuresgood with meter but is breaking down under voltage. | ||
Sony | CCDM8U | PART NUMBER FOR PINCH ARM IN LS CASSETTE ASSEMBLY | |||
Sony | KV25VXR | NO ON-SCREEN DISPLAY | No on-screen display in any function. Signals prevent at in-puts to IC-2001, but no outputs. Vertical pulse on pin 18, IC-2001 was1 VPP and 1-5VDC. By removing PPC-2 plug, display was on the screen. Isuspected D-2030 was causing the low pulse amplitu | ||
Sony | KV1923 | PIN CUSHION DISTORTION | SCC-204F-A chassis. Picture was narrow, slight pin cushiondistortion and about 5 narrow dark vertical bars on left side of screen. | ||
Sony | CCDV220 | NOISY PLAYBACK | Playback video was noisy. |