Toshiba ------------------------------------------------------------- SATELITER ------------------------------------------------------------- Model No.: All Fault: No video or other tricky things Remedy: Change all caps in power supply verify regulator IC's ------------------------------------------------------------- Model No.: 80 Fault: Snowy video. picture rolls Remedy: Replace cap C113. location demodalator board located behind tuner ------------------------------------------------------------- Model No.: TRX-1500 Fault: No Video.numerous others Remedy: check coupling capacitors with esr meter. I have repaired hundreds of recievers of all different brands, and 99% of the time caps are at fault. ------------------------------------------------------------- Model No.: TRX80. 100. 120 Fault: Unit turns off when you try to move the antenna Remedy: Replace C809 and C810 on the front power supply. One is a 10uf and the other is Submitted By: Rich Ford ------------------------------------------------------------- Model No.: TRX80. 100. 120 Fault: Will not move actuator but doesn't turn off. Remedy: Most likely tickled by lightning. First, replace the four general purpose diodes (1N4148) and the three (or four depending on model) transistors on the back edge of the actuator power supply. It is mounted on the left edge of the receiver. Then, look for a burnt off PC run on the back of the power supply. It is a fused run and is intended to pop off under lightning conditions. Repair run and test. If the units PC run is intact, then it is possible that you have a cold sold joint on the large transformer. You will have to check voltages at the output of the transformer and compare it to the opposite end of the pc run for that contact. It is a common problem for the transformer, because of the installation, to break loose. Resolder and check. ------------------------------------------------------------- TV ------------------------------------------------------------- Model No.: 175T9B Fault: low ht after short in line o/p stage APPROX 20-VOLTS Remedy: replace STRD POWER SUPPLY IC ------------------------------------------------------------- Model No.: 210T6B Fault: Distortion/bar across centre of screen Remedy: Replaced capacitors c318* c316 c451 c311 with 105 degrees c type in area of Lopt T461. Gets rather warm in this area. * Probable culprit. ------------------------------------------------------------- Model No.: 216T9B Fault: Frame Cramp - top half of screen blank - bottom half lined opens out as warms up Remedy: Replaced C303 & C317 2.2mF 50V 105 deg C (red in colour near to vertical osc IC). Thanks to elazaro@uniserve.com for finding the solution ------------------------------------------------------------- Model No.: 216T9B Fault: Frame Cramp - top half of screen blank - bottom half lined opens out as warms up Remedy: Replaced C303 & C317 2.2mF 50V 105 deg C (red in colour near to vertical osc IC). Thanks to elazaro@uniserve.com for finding the solution ------------------------------------------------------------- Model No.: 216T9B Fault: Frame Cramp - top half of screen blank - bottom half lined opens out as warms up Remedy: Replaced C303 & C317 2.2mF 50V 105 deg C (red in colour near to vertical osc IC). Thanks to elazaro@uniserve.com for finding the solution ------------------------------------------------------------- Model No.: 26/27 Inch Models Fault: Unit will not fire up. 'Tic-tic' Sometimes unit will work fine. Progressive problem, eventually dead set always. Remedy: Replace Leaky C840 330MFD @ 16V or greater. You may want to install a 330MFD @ 25V 105 Degree Temp rating. ------------------------------------------------------------- Model No.: 27" stereo Fault: Blows fuse on start-up Remedy: Replace Horizontal output transistor ------------------------------------------------------------- Model No.: 285T8BU Fault: GOES TO STANDBY INTERMITTLY Remedy: REPLACE IC 801 TDA4601 USE ONLY A SIEMANS TYPE,AND CHANGE ANY SMALL ELECTROLIC CAPACITORS AROUND IC801 ------------------------------------------------------------- Model No.: 2909 XH Fault: The upper linearity is very open. Remedy: C317(2.2uf50v,red capacitor) ------------------------------------------------------------- Model No.: CA14209 Fault: Vertical only on top half of screen with retrace lines. Remedy: Replaced 2.2 ufd. 50V electrolytic (red in color) on pin 29 of hor/vert IC (TA8680N). ------------------------------------------------------------- Model No.: CE2058 Fault: Erratic sound. Goes up and down. Remedy: Locate problem at speaker switch. Located on the front control panel. Pull and clean switch with chemical. Problem solved. ------------------------------------------------------------- Model No.: CE2600 Fault: horizontal not syncronise whent cold Remedy: change C442 1000uf 25v ------------------------------------------------------------- Model No.: CF1327B Fault: relay buzzes when turned on Remedy: CE12 is leaky, pulls relay voltage down to around 60v, should be about 165v ------------------------------------------------------------- Model No.: CF1921J Ch.TAC8920 Fault: Only top half pic./with loss of H&V sync Remedy: Replaced C301(2.2uF/50v.)located near IC501. And C305(2.2uF/50v.) located near vert. out. IC. ------------------------------------------------------------- Model No.: CF1922J Fault: slow vert. collapse with warmup Remedy: Replace leaky C307 ------------------------------------------------------------- Model No.: CF1922J Fault: slow vert. collapse with warmup Remedy: Replace leaky C307 ------------------------------------------------------------- Model No.: CF1922J Fault: Too much vert. height Remedy: Replace leaky C301, C305 ------------------------------------------------------------- Model No.: CF2041J Fault: Top half of screen shows horizontal lines bottom half blank. Picture seems compressed to top half. Remedy: In Model CF277J I changed TA8724 look for it, IC has a history of breakdown ------------------------------------------------------------- Model No.: CF2044J Fault: P.S. voltage reg. runs high Remedy: Replace shorted D806 ------------------------------------------------------------- Model No.: CF2044J Fault: vert. collapse bottom, top foldover Remedy: Replace leaky C301 [IC301, pin 2, will have about 5v on it] ------------------------------------------------------------- Model No.: CF2044J Fault: won't always shut off Remedy: Replace leaky QE10 ------------------------------------------------------------- Model No.: CF2048 & CX2168c Fault: No power, Dead Set. Remedy: Replace C841 and C840 they short ------------------------------------------------------------- Model No.: CF2655J/CF2655R Fault: Picture darkens red with diagonal lines Remedy: Touched soldering iron all over PCB of picture tube ------------------------------------------------------------- Model No.: CF2662B Fault: No Vert Deflect Remedy: Had bad U301 (TA8427K...crosses to ECG1782) and bad R327(5.6ohm 1-watt) Also be sure to test all caps in vert circuit and rectifier from flyback(near R327). This circuit is common to most Toshibas and will apply to many different models from '92-93 ------------------------------------------------------------- Model No.: CF2655R Fault: intermittent shutdown Remedy: cold solder joints in the H.O.T. area ------------------------------------------------------------- Model No.: CF2666A Fault: No vert./Vert. Foldover (Eyelid) Remedy: Replaced AN5521(ECG1782),C306,C308 and R327(5.6ohm) from HV rectifier(FB). 27.6v missing feeding AN5521(pin7). ------------------------------------------------------------- Model No.: cf2666 Fault: vert. none Remedy: an5512 [ ecg1782 ] c301 & c305 [ 1 / 50 v.] ------------------------------------------------------------- Model No.: CF27C50 Ch.TAC9341 Fault: Low,intermittent,noisy sound. Remedy: Replaced IC2 located inside the silver box(MVU325)which is to the right of the tuner. IC2 is the same sound module(m m 201) that is used in many of the Sony t.v.'s. ------------------------------------------------------------- Model No.: CF2768B Fault: Vertical Expanded at top & colapsed at bottom when warms up its ok Remedy: C342 1mf cap 105 deg hf ------------------------------------------------------------- Model No.: CF3254J Fault: No vertical . Line across screen. Remedy: IC301 AN5521(ECG1782),R327, 5.6ohm 1w. D302 (ECG552) ------------------------------------------------------------- Model No.: CF27E30 Fault: dead or intermittment on Remedy: check 5 voltsupply to micro . if ok and clean check reset pin should be 5 volt . found reset pin staying at 2.5 volts . changing caps and q840 no help . lift d830 out of circuit . if set works ok replace d830 1SS131. becomes leaky pulls reset line low all the time . diode may check good , replace anyway ------------------------------------------------------------- Model No.: CF32E50 Fault: Vertical Colapse Remedy: Replace Q421 9 volt regulator IC part # T7809BT ------------------------------------------------------------- Model No.: cm905c Fault: sound not clear Remedy: change t661:tsp1063 transfo ------------------------------------------------------------- Model No.: CN3281N Fault: Dead set ticking sound heard Remedy: The horizontal transistor is shorted(2SD2253). Check the red lead from the yoke for corrosion.Look carefully it is hard to see and if not noticed will take out the transistor again. ------------------------------------------------------------- Model No.: CX2657J Fault: 1)No vert. deflect. 2)Top,vert. foldover. Remedy: 1)Replaced vert.out.chip(AN5521) with ECG1782. also replaced R327(5.6 1/2w.) 2) Replaced C308(220uF/35v) located right,front of vert.out.chip. ------------------------------------------------------------- Model No.: CX-2778 Fault: on-screen controls won't work Remedy: Replace defective D/A converter ICX01 [UPD6336C] ------------------------------------------------------------- Model No.: CX2657J Fault: Vertical draw-up. Remedy: Replaced C301(2.2uF/50v) and C305(2.2uF/50v) ------------------------------------------------------------- Model No.: CX2886C Fault: hi pitch on sound like (sif) Remedy: cold joint pin 13 of ic 601 ------------------------------------------------------------- Model No.: CX2780A Fault: Will not turn off with remote or power button . Push the button once and the sound stops. Push it again and the screen goes black for about one second and then the picture returns (with sound). Remedy: Tap power relay with screwdriver to release stuck contact . If that doesn't work, repair or replace the relay. ------------------------------------------------------------- Model No.: TP50F50/51 Also E Line Fault: Intermittent loss of convergence correction. Digital Convergence models only. Remedy: Add C-7773, 470 @ 50WV to marked location, front left. Change C-7768 from .01mfd to .1mfd located front, centre of digital convergence upright board. ------------------------------------------------------------- Model No.: tac9632 Fault: horiz. overscan Remedy: d 466 5.6 v. zerner ------------------------------------------------------------- Model No.: TV Fault: No aft lock Remedy: change C171 on the IF subassembly ------------------------------------------------------------ VIDEO ------------------------------------------------------------- Model No.: M438 Fault: Snowy pict & noisy sound Remedy: change C14 in switching power supply. ------------------------------------------------------------- Model No.: M-7607 Fault: Intermittent stopping during play and intermittent eject function. Remedy: Resolder P803, 804, both fuse holders, W802, and Q802 in power supply. Clean tape loading leaf switches on cassette holder housing. Resolder P609 on main board. ------------------------------------------------------------- Model No.: M5320 Fel: Tape Video and Audio plays in EP mode no matter what speed recorded Åtgärd: byt IC501 ------------------------------------------------------------- Model No.: V-93W Fel: Display död, inga minnes kanaler Åtgärd: Locate pcb named tuner-II, down the main pcb. byt ZL-82 (integrated fuse). This fuse supply +12v at dc-dc converter for +-30 volts for display and memory operation ------------------------------------------------------------- microvågs ugnar ------------------------------------------------------------- Model No.: erx1800c Fel: efter ca 10min. indicate anything in front Åtgärd: ic:d546c-418 ------------------------------------------------------------- RADIO ------------------------------------------------------------- Model No.: pc-g33 Fel: stop alone Åtgärd: Byt c604 .01uf mot .05uf