| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | KV27XBR10 | REMOTE GIVES IREGULAR FUNCTIONS, REPLACED IC-1701 | When using the remote control, unit would operate erratically.For example, hitting the power off, the set changes channel. | ||
| Sony | KV20EXR10 | NO POWER, REPLACED C-112 | No power. Pins 29, 1, 38, 27 all checked out ok. However,there was no 5V on pin 25 (power) on IC-101 and as a result no drive forthe relay from pin 7 of IC-101. | ||
| Sony | KX1901A | WHITE VIDEO SMEAR ALONG WITH JAIL BARS IN BACKGROUND | The unit displayed a white video smear along with jail bars inthe background. Scoping TP-92 revealed 2V ripple, also found 1 Volt ofripple at TP-93. | ||
| Sony | KV27TS30 | HORIZONTAL JITTER, REPLACE C-501 | Horizontal jitter for the first 10 minutes. Then unit worksfine. | ||
| Sony | ITA850 | UNIT CUTTING OFF ICM | Answering machine cutting off ICM after a couple of seconds.Found this problem in three units also serial numbers 15668 and 81697.After unit cut off, ICM machine would default into answer mode 2. Putunit in test mode, put unit into ICM play, ICM began t | ||
| Sony | SLV50 | HEAD DRUM REPLACEMENT PART | This part is being substituted by part number 8-848-518-01.When this substitute part is installed, tapes recorded on the machine havea rainbow noise pattern at the beginning of the recording evidence thatthe flying erase head is not working. When the or | ||
| Sony | EVS700U | UNIT WILL NOT POWER UP | Unit will not power up. | ||
| Sony | SLVR5UC | NO DISPLAY | No display. Replaced display board still no display. Checkedvoltage on drive IC no -30V traced -30 to power supply. Found resistoropen (nothing on power supply block in the service manual).Replaced resistor on -30V, display is ok. Put old circuit boa | ||
| Sony | SLV757UC | NO PLAY | Unit loads tape but drum runs very slow. Checked drum drivecircuit IC-001 on MD-22 board and it was very hot. Replaced IC stilloperating very hot. Didn,t have time to check any voltage. Checkedall electrolitic caps for S/C around IC. When checking a | ||
| Sony | TCH500 | NO POWER TO TAPE DECK | The printed circuit board, 901, is often found broken throughthe ventilation holes. This break destroys several traces and renders theunit powerless. It appears that the board is weak at these points and isunable to withstand any shock to the rear pane | ||
| Sony | ACV60 | NO POWER ON | No power on. | ||
| Sony | SL3030 | CAPSTAN SERVO INTERMITTENT/WILL NOT LOCK/UNSTABLE PICTURE | Very intermittently the capstan will run too slow. CTL fre-quency goes from 30Hz to 27Hz. Phase lock on phase PWM is lost. FG, CTL,SC, tracking and VCC are all normal. This problem occurs in both BII andBIII playback. | ||
| Sony | SL5101 | BAD CAPACITOR IN TANTALUM CAPACITOR KIT | A capacitor kit was installed in this VCR to correct therecord lock phase. After installation, the servo circuits would notalign. The capstan phase servo output at IC-001, pin 23 (TP-5) which isnormally 5.5V was zero in both record and playback, BII or | ||
| Sony | D2 | NO SOUND FROM LEFT CHANNEL THROUGH HEADPHONE | This unit had no left channel sound through headphone jack,only line out was ok. | ||
| Sony | STRV35 | SIGNAL CLIPPING DUE TO INCORRECT PART SUBSTITUTE | Q-605 and Q-655 seems to have an incorrect substitute. Theoriginal part was 8-729-601-42 (2SC1914A) which crossed to a 8-729-800-32(2SC2362K). The substituted part would overdrive the signal causingclipping and the output to distort. |