Panasonic ------------------------------------------------------------ VIDEO KAMERA ------------------------------------------------------------ Model No.: PV-400D Fault: Humming noise in play/FF/REW. Grinding noise also. Remedy: Thicker belt stops humming. Apparently, when the OEM belt stretches slightly after time, the length/width ratio is perfect for harmonic resonance. Adjust FG head and capstan height to alleviate grinding noise. ------------------------------------------------------------ TV ------------------------------------------------------------ Model No.: Chassis GXLH Fault: Horizontal flagging at top of picture. Remedy: Replaced C559(47uF/25v.)This filter is connected to pin 1 of IC551(12-volt regulator) for the vert./horiz. chip. ------------------------------------------------------------ Model No.: ct-10r11s Fault: no green Remedy: repair open foil to q352 g-out problem is intermitted only happens when back cover is installed ------------------------------------------------------------ Model No.: CT-20R11S Fault: Vertical opens and closes or stays closed, plus there is no audio Remedy: Check if the 5 volt source is good at D557 ------------------------------------------------------------ Model No.: CT27S18S Fault: Dead, Intermittent Remedy: Check for solder joint near high heat area. IC801 solder crack ------------------------------------------------------------ Model No.: ct-914ca Fault: no start Remedy: c808 1uf 160v ------------------------------------------------------------ Model No.: CTF-1952R Fault: Channels locked from 37 through 42. Remedy: I did not have the original remote, so I programmed my universal remote(055)and programmed in all the available channels on cable. Then the channels could be surfed by using the channel up and down buttons on the t.v. ------------------------------------------------------------ Model No.: CTG-2501 Fault: Vert. draw-up(Top&Bottom) Remedy: Replaced C453(22uF/35v.) ------------------------------------------------------------ Model No.: CTG2588R Fault: Dark picture. Remedy: Rejuvenated(all three guns)of picture tube, and then adjusted screen control ------------------------------------------------------------ Model No.: CTK3190S Fault: Vertical stretched at top height control filled top of screen and had four inches of black on bottom Remedy: D452 18 volt 1 watt zener cracked ------------------------------------------------------------ Model No.: CTN2560R Fault: HORIZONTAL WAVY LINES IN PICTURE Remedy: CHECK C559 220uf 25v CAP. FOR EXCESSIVE AC RIPPLE VOLTAGE ------------------------------------------------------------ Model No.: CTN2560R-2 Fault: No horinz.sync.lock,and No sound. Remedy: Replaced B+Reg.(STR3230). ------------------------------------------------------------ Model No.: pc29x92s Fault: horz.bars 4" apart Remedy: c559 off pin 7 of the FBT ------------------------------------------------------------ Model No.: PC29X92S Fault: ERATIC OPERATION / VOLUME GOES HIGH BY ITSELF Remedy: REPLACE C034 C035 .01 CERAMIC DISC COND ------------------------------------------------------------ Model No.: Pi/P2 Chassis PTV Fault: Intermittent shutdown. Remedy: Panasonic part # TXANV033SER mod. kit AND TXANV011SER mod kit. Suggest taking schematic along or bench service. ------------------------------------------------------------ Model No.: PV-M2021A TV\VCR Fault: Looses color after warmup. Remedy: Replace IC3001/VCRS0167-A in VCR circuit ------------------------------------------------------------ Model No.: PV-M2028 Fault: AFTER WARM UP (ABOUT 1 MINUTE) PICTURE BEGINS TO TEAR HORIZONTALLY Remedy: REPLACE CAPACITOR C553 (NEAR FLYBACK) PART#ECKC3D222KBN ------------------------------------------------------------ Model No.: TC-1485 Fault: DEAD-tripping Remedy: R467 or d816 & d806 or r506 ------------------------------------------------------------ Model No.: TC-1485 Fault: No Colour Remedy: replace/Check C616 (0.01uF) ------------------------------------------------------------ Model No.: TC2655 Fault: No THT, power click Remedy: Replace transistor that drives the High voltage transformer (2SD1441, other type may not work), Replace C808/47mf/16V with 47mf/50V (primary side): this capacitor can be 'dry' and increases the secondary voltage regulation., Replace capacitors connected to the burned transistor (must be 2Kv or 3Kv), Replace free run diode in the horizontal diode with BYW96E /3A/1000V ------------------------------------------------------------ Model No.: TR-562A Fault: Dark bar on left side of screen Remedy: Replace C420 1 MFD with 10 MFD 160v cap ------------------------------------------------------------ Model No.: TR900 series B&W CCTV monitor. Fault: No horizontal sweep Remedy: Replace Bi-polar 80mfd. yoke coupling capacitor ------------------------------------------------------------ Model No.: TVCR Fault: Extreme contrast overload, Whiting out of picture after being on a short while Remedy: Change IC3001 on VCR chassis ------------------------------------------------------------ Model No.: TX2122 Fault: TRIPPING ( WORKS OK WITH A DUMMY LOAD ) Remedy: THE LINE OUTPUT TRANSFORMER WAS FAULTY ----------------------------------------------------------- Model No.: TX-25W2SD Fault: E/W correction fault Remedy: R 751 33 Ohms 1/2 W (Right from line transformer ------------------------------------------------------------ Model No.: TX28A1DT Fault: Won't start. PSU makes noise! Remedy: Check R567 (1000mA Fuse) ------------------------------------------------------------ Model No.: TX-28XDP3 Fault: No Sound Remedy: Replace main audio controller chip on the audio board ------------------------------------------------------------ VIDEO ------------------------------------------------------------ Model No.: All Panasonic made 'G' chassis VCRs Fault: Solenoid clicking constantly, along with front leds flashing Remedy: Replace 80mfd electrolytic in power supply. ------------------------------------------------------------ Model No.: Cordless Fault: Will not transmit voice - dialling is OK. Remedy: Check for dry joint on NiCd battery connector. ------------------------------------------------------------ Model No.: FS100 Fault: Unit runs for up to an hour and then will not play SVHS tapes without the picture breaking up. VHS tapes still OK. Remedy: Replace IC303 VEFHO5BT (A little ceramic wafer sub-board costing $NZ73.11 which also contains the chip AN3292NS). ------------------------------------------------------------ Model No.: kx-t308,kx-t616 Fault: no da tono de extension Remedy: checar transistores Q301 y Q302, reemplazo ECG 18 y 19, checar tambien R=22ohms asociadas ------------------------------------------------------------ Model No.: NV J1 Fault: power supply 'clicks'-no functions Remedy: Replace d12 --in psu -20v/1wzener ------------------------------------------------------------ Model No.: NV SD 20 Fault: TURN OFF WILE LOADING TAPE Remedy: CHANGE LOADING MOTOR ------------------------------------------------------------ Model No.: NV7200 Fault: Unstable pictures. Remedy: Check capstan supply capacitors C1010 & C1013 ------------------------------------------------------------ Model No.: NV730 Fault: Shuts off intermittently. Remedy: Check for dry joints at Q1504 ------------------------------------------------------------ Model No.: NV777 Fault: No power, sometimes a flicking standby light Remedy: Replace fusible link in power supply (must use a 1 ohm or burn out using a shorting link!) ------------------------------------------------------------ Model No.: NVF70 Fault: No nicam sound. Remedy: Replace IC7901 ------------------------------------------------------------ Model No.: NVG40 Fault: No 12 volt supply from psu. Remedy: Check Q04. ------------------------------------------------------------ Model No.: NV-G40 Fault: No play back signal - Rec OK Remedy: The problem is ribbel on +5V from power supply Replace C1019 470uF 10V ------------------------------------------------------------ Model No.: NVG45 Fault: Head drum spinning too fast. Remedy: Check C2117 (0.47uf) for leakage ------------------------------------------------------------ Model No.: NVHD600EG Fault: No Funktion, No Display Remedy: Q1111 underneath the Mainboard is defective. You can compare it with Q1107! ------------------------------------------------------------ Model No.: NVHD600EG Fault: The VCR goes in self protect mode. Remedy: Q1111 defective in the power supply. It's underneath the board. ------------------------------------------------------------ Model No.: NVJ30 and clones. Fault: Shuts off when laced up. Remedy: Check for dry joints at motor connector P2001 ------------------------------------------------------------ Model No.: NV-J40 Fault: Bad picture on tuner and pb Remedy: Replace C27 330uF/10V in PSU ------------------------------------------------------------ Model No.: NV-J40 Fault: Interferentie in picture . Remedy: Interferentie in Tv picture .When remove VCR TVpicture ok. Bad conntact on the metal shielding of the VCR tuner Resolder the shielding ------------------------------------------------------------ Model No.: NV-J45 Fault: Imagem sólinhas brancas/pretas(código barras) Remedy: C27(330uf10v)na fonte. ------------------------------------------------------------ Model No.: NV-L15 Fault: NO PLAY OR EJECT FF&REWIND OK Remedy: CHANGE C37 ON PRIMARY OF PSUPPLY 22NANOFARAD TANTLUM ------------------------------------------------------------ Model No.: nvl25 Fault: keep stopping on recording mode but work ok on normal playback Remedy: STK5392 pin 4 drop to 8 to 9 volt normal 12 volt faulty STK5392 ------------------------------------------------------------ Model No.: nv-sd 200 Fault: error F03 F05 F06 Remedy: mechanical loading problems replace pulley under loading wormshaft and loadingshaft itemnumbers: vxp1339 1l and vdp 1434 ------------------------------------------------------------ Model No.: nvsd200 Fault: f03 f04 f06 Remedy: as well as the loading motor pully.change the loading motor worm gear and worm wheel gear also clean or replace mode switch ------------------------------------------------------------ Model No.: NV-SD300 Fault: Testpicture appears during playback Remedy: Bad charakters on Display.Check Diodes D7518 and D7506 (=MA165) Replaceble by 1N4148 ------------------------------------------------------------ Model No.: PV 2700B Fault: No power or intermittent power-up. Remedy: Replaced C15(330uF/50v) and C19(1uF/50v)in the power supply. ------------------------------------------------------------ Model No.: PV-330D Fault: Upon eject or power up, cassette loading mechanisms don't stop at proper location but bind up until auto power off. Remedy: Clean out leaf switch on cassette housing closest to pinch roller. ------------------------------------------------------------ Model No.: PV3720 Fault: Display flashes,goes out,vcr is then dead. Remedy: Replaced C15(330uF/6.8v.) Must disconnect this filter from board for accurate measurement. Also check C19(1uF)and replace if necessary. ------------------------------------------------------------ Model No.: pv4351 Fault: press play the video start but the head do not turn or a little Remedy: power supply cond.c16(330mfd at 6.3volt) ------------------------------------------------------------ Model No.: PV-4277 Fault: Not taking in tape fully upon eject and/or not taking up tape in play when supply is almost full, jamming when ejecting/loading when unit is on it's left/right side. Remedy: Stretch out coil spring under + inch gear under main clutch on bottom ------------------------------------------------------------ Model No.: PV-4722 Fault: Not fully going into play mode/tape loading erratic and inconsistent. Remedy: Resolder bad connections on pins of IC4 on top board (servomechanism). ------------------------------------------------------------ Model No.: PV-4722 Fault: No color initially, then intermittent until warm up (about 10 min.) when color is OK. Remedy: Hit IC3001 (luminance and chroma) with freeze. If it loses color, replace. ------------------------------------------------------------ Model No.: PV-4760 Fault: No color & jumpy. Gets slightly better after warm-up. Dead with whine from supply when it came in, however. Remedy: Replace C15 (330uF/6.3V) and check for burnt C21 (0.01uF/250V poly) in supply. This unit is of the vintage w/ the loose RF connectors - resolder. ------------------------------------------------------------ TELEFON & FAX ------------------------------------------------------------ Model No.: KX-FP101 Fault: no da tono o no tiene linea Remedy: cambiar varitor que esta en la lina de telefono y es de color rojo su valor es de 220 B8N ------------------------------------------------------------ Model No.: KX-T2465 Fault: Intermittently not recording in-coming message, caller hears error tones. Remedy: Loose cassette holding leaf springs allowing tape to pop up when unit cycles. Bend them down ------------------------------------------------------------ MICRO UGNAR ------------------------------------------------------------ Model No.: NN6380 Fel: Går men värmer inte Åtgärd : Byt MAGNATRON (2M210) . FILAMENT SHORT TO GROUND ------------------------------------------------------------ Model No.: ne-9970p Fault: arcing in cavity Remedy: Clean ! replace wave guide cover. # 40qbp0818 ------------------------------------------------------------