TV Repair Tips

ZENITH

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Model	Chassis	Symptom	Problem Description	Fix
zz	9-1270	Video	no HV, but has audio	QX3403 (#121-1301)
zz	9-1270	Power	shuts down intermittently after replacing flyback (#95-4134-09)	Change CRX3204 from 9.1V Zener to 12V Zener
zz	9-1270-2	Video	no high voltage	R3432 (0.51ohm/.5W), QX3202
zz	9-1302	Convergence	No convergence	CR3206 and RX3210 (near flyback)
zz	9-1302	convergence	bad convergence	R3243 (110kohm/.5W, under large blue 5W power resistor)
zz	9-1302	Video	No video, audio OK	R3252, CR3215
zz	9-1334-1	Video	no vertical	Vert IC (LA7838), C2100, C2104, C2105, C2110
zz	9-1407	Power	Dead but Fuse OK	CX3220 and 3222 (both 530pF/3kV)
zz	9-1407	Power	Dead	CR3434
zz	9-1407	Power	Dead	C6031 (.47uF)
zz	9-1407	Power	Dead, with click	bad trace on pin 12 of flyback to HOT, you could see it spark in the dark
zz	9-1407	Power	Dead, fuse OK	RX3433 (15ohm/.5W), RX3434 (43ohm/1W), Q3431 (MPS-A06), ICX3431 (STR53041)
zz	9-1407	Power	Dead, fuse OK	RX3456 (0.68ohm/5W)
zz	9-1407	Power	Dead	ICX3431 (STRS53041), Q3431 (#121-1264-01), R3433, R3434
zz	9-1407	Power	Dead	Q3203 (121-1102, ECG290)
zz	9-1407	Power	Dead, no 16V standby and 130V pulsates	CR3411
zz	9-1407	Power	Dead	R3432 (180kohm)
zz	9-1537	Video	color bad, no red	R5110 (120kohm,.5W)
zz	9-1553	Video	no video, does have audio and high voltage	D12200 (223-30)
zz	9-1813	Power	Dead, blows fuse	ICX3431, 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.