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TV Repair Tips

ZENITH

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Size Model Chassis Symptom Problem Description Fix
 zz9-1270Videono HV, but has audioQX3403 (#121-1301)
 zz9-1270Powershuts down intermittently after replacing flyback (#95-4134-09)Change CRX3204 from 9.1V Zener to 12V Zener
 zz9-1270-2Videono high voltageR3432 (0.51ohm/.5W), QX3202
 zz9-1302ConvergenceNo convergenceCR3206 and RX3210 (near flyback)
 zz9-1302convergencebad convergenceR3243 (110kohm/.5W, under large blue 5W power resistor)
 zz9-1302VideoNo video, audio OKR3252, CR3215
 zz9-1334-1Videono verticalVert IC (LA7838), C2100, C2104, C2105, C2110
 zz9-1407PowerDead but Fuse OKCX3220 and 3222 (both 530pF/3kV)
 zz9-1407PowerDeadCR3434
 zz9-1407PowerDeadC6031 (.47uF)
 zz9-1407PowerDead, with clickbad trace on pin 12 of flyback to HOT, you could see it spark in the dark
 zz9-1407PowerDead, fuse OKRX3433 (15ohm/.5W), RX3434 (43ohm/1W), Q3431 (MPS-A06), ICX3431 (STR53041)
 zz9-1407PowerDead, fuse OKRX3456 (0.68ohm/5W)
 zz9-1407PowerDeadICX3431 (STRS53041), Q3431 (#121-1264-01), R3433, R3434
 zz9-1407PowerDeadQ3203 (121-1102, ECG290)
 zz9-1407PowerDead, no 16V standby and 130V pulsatesCR3411
 zz9-1407PowerDeadR3432 (180kohm)
 zz9-1537Videocolor bad, no redR5110 (120kohm,.5W)
 zz9-1553Videono video, does have audio and high voltageD12200 (223-30)
 zz9-1813PowerDead, blows fuseICX3431, Q3401, CX3413, CX3416
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Warning

: Don't kill yourself.  If you do, don't blame us...  We totally warned you.  These tips are intended for qualified service technicians that know what they're doing.  Unqualified persons should never service their own equipment.  Televisions contain very high voltage that could kill you.