Technical description and composition of the SONY KDL-32EX310 TV, panel type and applicable modules. The composition of the modules.SONY LED
Model: KDL-32EX310
Panel: LC320EXN (SD) (A3)
T-CON: LC320EXN 6870C-0370A; TL2345ML, TPS65170, TPS65194, MAXIM9668E, 404RP
LED driver (backlight): 6917L-0072A
PWM LED driver: BD9262EFV
Power Supply (PSU): APS-307 (CH) 1-884-864-11
PWM Power: MIP2H2, A3810M
MOSFET Power: MBRF10U60CTA, MBRF10U100CTA, K8A50D, K5A50D
MainBoard: SOLED_32_MT66_EU_IP_MB 48.72V06.011 - S0103-1
IC MainBoard: MT5135AE, PS331A1, STA3698W3, D9329
Tuner: SUT-RE205TN
Control: RM-ED046
Technical Specifications KDL-32EX310
SONY KDL-32EX310
General repair guidelines for TV LCD LED
A malfunction of the power supply is often manifested corny - the TV does not turn on, does not make any sounds, does not light up and does not blink with any indicators. After checking the mains fuse and power elements of the primary power supply circuit, it should also check the absence of a short circuit in the loads of the secondary rectifiers.
As a rule, the keys in switching power supplies (SMPS) are reliable enough and rarely fail for no reason to be looked for by checking other components of the circuit - electrolytic capacitors, resistors and semiconductor elements of the primary circuit. The PWM chip is verified by replacing it with a known good one.
If the SONY KDL-32EX310 does not have an image, but there is sound, there may be a malfunction of the backlight LEDs of the LC320EXN (SD) (A3) panel or their power converter - LED driver.
Often there is a need for disassembling the panel to check the health of the LEDs, as well as contact connections in the connectors and soldering.
It should be remembered that it is not possible to determine the break in the LED lines without disassembling the panels using a tester or multimeter without an additional device, for example, a current source. To open all PN junctions connected in series at once, a voltage of several tens of volts may be required. Then it is necessary to open the panel and check each LED separately with a multimeter. If the capabilities of your multimeter do not allow you to open the LED in the forward direction or dual LEd are used, then the PN junction of the emergency zener diode can indirectly serve as a health indicator. In case of LED-a failure, the zener diode PN junction will either be cut off or broken into short-circuit.
Motherboard 55.72V01.Y01 - 48.72V06.011 - S0103-1 - SOLED_32_MT66_EU_IP_MB should be checked if there is no reaction to the console and function buttons, the standby indicator blinks or lights up constantly. In such cases, if the converters or power regulators of the microcircuit are working, a software update may be necessary.
When repairing an MB board, you need to check its components MT5135AE, PS331A1, STA3698W3, D9329. Defective items should be replaced. If BGA chips are installed, their malfunction is usually localized by heating.
The malfunction of the CC1E05 SUT-RE205TN tuner is established after checking the software and all the supply voltages at its terminals. The data exchange of the tuner with the processor via the I2C bus can be controlled by an oscilloscope.
Remember! Attempts to self-repair by users of the SONY KDL-32EX310 TV without the appropriate qualifications and necessary experience can lead to serious negative consequences!
To reduce the backlight current in LED drivers with the BD9262EFV controller, it is necessary to proportionally increase the total resistance of the resistors from terminal 23 (ISET) to the housing.
The appearance of MainBoard SOLED_32_MT66_EU_IP_MB is shown in the figure below:SOLED_32_MT66_EU_IP_MB
SOLED_32_MT66_EU_IP_MB can be used on TVs:
SONY KDL-42EX410 (Panel LC420EUN (SD) (V4)), SONY KDL-32EX310 (Panel LC320EXN (SD) (A3)).
The appearance of the power supply
Main features of the device SONY KDL-32EX310:
Installed matrix (LED-panel) LC320EXN (SD) (A3).
The matrix control uses the Timing Controller (T-CON) LC320EXN.
To power the backlight LEDs, the 6917L-0072A LED driver is used, controlled by the BD9262EFV PWM controller.
The necessary supply voltages for all nodes of the SONY KDL-32EX310 TV are generated by the APS-307 power module or its analogs using MIP2H2, A3810M microchips and power switches of the MBRF10U60CTA, MBRF10U100CTA, K8A50D, K5A50D type.
MainBoard - the main board (motherboard) is a module SOLED_32_MT66_EU_IP_MB, using chips MT5135AE, PS331A1, STA3698W3, D9329 and others.
The SUT-RE205TN tuner provides television reception and channel tuning.
Information from an alternative source:
SONY KDL-32EX310
Panel Type (Matrix): LC320EXN (SD) (A3)
Motherboard: SOLED-32-MT66-EU-IP-MB S0103-1, MT5135AE PS331A1, STA3698W3, 24C02H x3, D9329 x2, Tuner: CC1E05 SUT-RE205TN,
T-con: LC320EXN 6870C-0370A TL2345ML, TPS65170, TPS65194, MAXIM9668E, 404RP, Led driver: 6917L-0072A, BD9262EFV,
PSU: APS-307 (CH), MIP2H2, A3810AM, K8A50D, K5A50D x2, MBRF10U100CTA, MBRF10U60CTA, R.Cont: RM-ED046
Additional technical information about the panel:
Brand: LG Display
Model: LC320EXN-SDA3
Type: a-Si TFT-LCD, Panel
Diagonal size: 31.5 inch
Resolution: 1366x768, WXGA
Display Mode: S-IPS, Normally Black, Transmissive
Active Area: 697.685x392.256 mm
Surface: Antiglare (Haze 10%), Hard coating (3H)
Brightness: 380 cd / m²
Contrast Ratio: 1200: 1
Display Colors: 16.7M (8-bit)
Response Time: 9 (G to G)
Frequency: 60Hz
Lamp Type: WLED Embedded (LED Driver)
Signal Interface: LVDS (1 ch, 8-bit), 30 pins
Voltage: 12.0V
