Sony KV-T29SN81 service manual Self Diagnosis Function, Flickering Frequency

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KV-T29SN81

RM-870

SELF DIAGNOSIS FUNCTION

If no acknowledgement is returned from a device which is turned "ON", the device has a problem.

In this case, one of the LED's responding to the problem device will flicker a defined number of times.

Flickering is operated by lighting the LED's for 60ss each time.

The flickering frequency responding to each failed device is shown below.

		NONVOLATILE	—	Y/C JUNGLE	—	—	AUDIO
	Device	MEMORY	—	Y/C JUNGLE	—	—	PROCESSOR
		MEMORY					PROCESSOR
							(TDA8424)
							(TDA8424)

	Flickering	1	—	3	—	—	6
	Frequency	1	—	3	—	—	6
	Frequency

All the devices are checked one after another from the left of the table.

If an error is found, the responding LED will start flickering.

So, if more than 1 device have failed, only the one on the left side will flicker.

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Contents Trinitron Color TV Specifications KV-T29SN81Table of Contents DiagramsDisassembly Electrical Parts List SET-UP AdjustmentsSelf Diagnosis Function Flickering FrequencySection General Connections Presetting channels Adjusting the picture and sound Selecting a stereo or bilingual program Troubleshooting Board Removal Service Position Section DisassemblyRear Cover Removal F1 Board Removal Replacement of Parts Demagnetization Coil Removal Replacement of Light Guide Power Button∙ Removal of ANODE-CAP ∙ Removing Procedures Picture Tube RemovalSection SET-UP Adjustments Beam LandingConvergence Horizontal and Vertical Static ConvergenceBlue Red Neck assy VM board Dynamic Convergence Adjustment Preparation Focus Adjustment G2 Screen and White Balance AdjustmentsSection Circuit Adjustments Adjustments with CommanderAdjustment Method Adjustment Item Table No OP0 * Input data are different according to models Item Number 00 Memo Semiconductors EL1Z GP08DExploded View SectionChassis Electrical Parts List PIN, Connector 4P PLUG, Connector 5PPLUG, Connector 6P CONNECTOR, Board to Board 12PDiode RU4DS Diode D1NL20-TADiode EL1Z Diode LNK0220022GTransistor 2SC2410SN Transistor 2SA1091-OTransistor 2SC3209LK Transistor 2SC4927-01Wirewound CarbonMetal Chip FusibleRES, ADJ, Carbon 2.2M Switch SolidVariable Resistor RES, ADJ, Carbon 470KREF. NO. Part no Description Remark Spark GAP GAP, Spark Surface Wave FilterSawf Transformer TRANSFORMER, Line FilterCarbon Coil Switch FilterIC CXA1110BS IC MSP3410D-PP-B4Transistor 2SC2611 SOCKET, CRT CoilCarbon Variable Resistor CLIP, Fuse Capacitor FuseFUSE, TIME-LAG 4A/250V Resistor Diode RD3.6M-B2Connector PLUG, Connector 7PTransistor 2SD774-34 Crystal VibratorIC NJM2903D IC NJM2904D CoilTransistor 2SA1837 Transistor 2SC4793Accessories and Packing Materials Remote CommanderBattery COVER, Remote Commander Miscellaneous COIL, Demagnetization