Technical description and composition of the TV SONY KLV-30HR3, type of panel and applicable modules. The composition of the modules.SONY
Model: KLV-30HR3
Chassis / Version: WA1
Panel: V296W1-L15 rev.C3
T-CON: 1-863-279-23 6970-LF A GBB02 HH94G.00
Inverter (backlight): IV210320C, IV120320C - I296W1-16S-V02-S1J0 - Rev 1J
PWM Inverter: OZ9721GN, FDS8958A, BA10339F, 47C950K
Power Supply (PSU): 1-864-649-11 G2
PWM Power: STR-A6169, MCZ3001UB
MOSFET Power: 2SK2842
MainBoard: 1-863-275-16 A-8001-607-A A board
IC MainBoard: MSP3410G, CXA2163AQ, MC74LVX8053, PCF8574TS-T
Technical Specifications KLV-30HR3
SONY KLV-30HR3
General recommendations for repairing TV LCD
It is advisable to start the repair and diagnostics of the SONY KLV-30HR3 TV with a careful external examination of the internal and external elements, including case parts, a display, buttons and cables. Visible damage to elements can sometimes suggest further directions for finding a defect before starting the necessary measurements. Swollen electrolytic or cermet capacitors, charred resistors, ring cracks in the soldered terminals of the elements - all this can significantly help the master to determine the causes and consequences of the malfunction of the TV.
Sometimes the SONY KLV-30HR3 TV just does not turn on. No control lights on the front panel are lit or blinking, the TV does not respond to the remote control and does not make any sounds or any signs of life when turned on. The most likely cause of the malfunction is the failure of the general power supply module G2 1-864-649-11. When diagnosing and repairing the power supply, first of all, it is necessary to check the fuse and, if it is broken, it is necessary to identify the cause. Often in such cases, an avalanche (thermal) breakdown is detected in the power semiconductor elements of the module - rectifier diodes or power switch 2SK2842.
It should be remembered that in the practice of repair, usually the power keys of N-Fet converters do not fail due to their poor quality and, in such cases, it is necessary to look for the cause that led to a malfunction and provoked a breakdown of the key. Most often, the culprits of the accident are dried electrolytic capacitors or dangling resistors in the primary circuit, or the PWM controller chip IC STR-A6169, MCZ3001UB may be faulty. It is also necessary to check all the semiconductor elements of the stabilization circuit in the primary and secondary circuits.
In cases using a power module with an active KKM, troubleshooting is sometimes somewhat more complicated.
Sometimes the SONY KLV-30HR3 TV does not have an image, but there is sound, or the image appears and immediately disappears. In this case, there is a high probability of a malfunction of the backlight converter, or of the lamps themselves, which can be checked by replacement. In such cases, it is necessary to verify the serviceability of all electrolytic capacitors of the filter according to the power supply of the inverter itself, including the power supply unit (power supply unit).
Repair of the inverter IV210320C, IV120320C - I296W1-16S-V02-S1J0 - Rev 1J can often be somewhat complicated by the use of special protective circuits, which are designed to disconnect it in emergency cases for fire safety when the lamps are depressurized, or short circuits or breaks in high-voltage circuits and connections . Sometimes it becomes necessary for diagnostic purposes to block the protection circuits to be able to make the necessary measurements at the control points of the circuit.
All necessary precautions must be observed when disabling the inverter protection during diagnostics and not leaving it disconnected after the repair is completed.
Diagnosis and repair of the motherboard A A-8001-607-A is carried out by checking the performance of power stabilizers or updating the software (software).
Once again, remind users! Attempts to self-repair a SONY KLV-30HR3 TV without the appropriate qualifications and experience can lead to its complete non-repairability!
Service manual / schematic diagram ----------> Sony KLV-30HR3 Chassis WA1
The appearance of MainBoard 1-863-275-16 is shown in the figure below:1-863-275-16
The appearance of the power supply
Main features of the device SONY KLV-30HR3:
Installed matrix (LCD panel) V296W1-L15 rev.C3.
The matrix control uses the Timing Controller (T-CON) 1-863-279-23.
An IV210320C inverter is used to power the backlight lamps; it is controlled by the PWM controller OZ9721GN, FDS8958A, BA10339F, 47C950K.
The necessary supply voltages for all nodes of the SONY KLV-30HR3 TV are generated by the power module 1-864-649-11, or its analogs using microcircuits STR-A6169, MCZ3001UB and power switches of the type 2SK2842.
MainBoard - the main board (motherboard) is a module 1-863-275-16, using microchips MSP3410G, CXA2163AQ, MC74LVX8053, PCF8574TS-T and others.
Information from an alternative source:
SONY KLV-30HR3 Chassis WA1
Panel Type (Matrix): V296W1-L15 Rev. C3
Motherboard: A-8001-607-A,
T-con: 1-863-279-23, 6970-LF A GBB02 HH94G.00
Invertor: IV120320C - I296W1-16S-V02-S1J0 - Rev 1J, OZ9721GN x8, FDS8958A x16, BA10339F, 47C950K
PSU: 1-864-649-11, STR-A6169, 2SK2842 x2, MCZ3001UB part 1, part 2
Additional technical information about the panel:
Brand: CMO
Model: V296W1-L15
Type: a-Si TFT-LCD, Panel
Diagonal size: 29.5 inch
Resolution: 1280x768, WXGA
Display Mode: Super MVA, Normally Black, Transmissive
Active Area: 643.2x385.92 mm
Lamp Type: CCFL