Technical description and composition of the SONY KDL-37S5600 TV, panel type and applicable modules. The composition of the modules.SONY
Model: KDL-37S5600
Chassis / Version: EX2N-Peppermint
Panel: T370HW02 V.B
T-CON: T370HW02 VC CTRL BD; 37T04-C0G, RT8901, D9322, BD8160EFV, AS15-HF
Inverter (backlight): VIT71865.50 LOGAN Rev3
PWM Inverter: OZ964GN
MOSFET Inverter: P2504BDG
Power Supply (PSU): 3H267W-1 G4 PSC10270F M
PWM Power: SSC9503 (16), A6079M (7)
MainBoard: 1-878-999-21 B
IC MainBoard: PNX85433EH200CC, NAND512W3A2CN6F, E5116AJBG, TDA9995HL / C1,
Tuner: ENG37E10KF
Technical Specifications KDL-37S5600
SONY KDL-37S5600
General recommendations for repairing TV LCD
Repair SONY KDL-37S5600 must begin with the diagnosis of the malfunction and a thorough inspection of its external and internal components, including the case. Visible damage to elements can sometimes suggest further directions for finding a defect before starting the necessary measurements. Electrolytic capacitors of filters with a swollen case, as well as ring cracks or a layer of coal on burned-out resistors formed in the soldered terminals of the heating elements, sometimes tell the repairman the causes of the malfunction and possible consequences.
If the SONY KDL-37S5600 does not turn on, no control lights on the front panel light up or blink, therefore, there is a very high probability of a malfunction of the G4 3H267W-1 PSC10270F M power supply module. It is advisable to start the diagnosis of the power supply module fault by checking the mains fuse. If it is torn, it is necessary to check first of all the power semiconductor elements - rectifier diodes and the power switch of the converter, which are often found in a breakdown state in such situations.
The reasons for the breakdown of the power switch of the flyback converter of the power supply module can be different, for example, a malfunction of semiconductor elements or electrolytic capacitors in the stabilization circuits of the primary circuit, as well as a failure in the operation of the PWM controller SSC9503 (16), A6079M (7) or broken resistors in it strapping.
In cases where the Power Factor Corrector (PFC) is used in the power supply, troubleshooting can be a bit more complicated.
If the SONY KDL-37S5600 does not have an image, but there is sound, there is a possibility of a malfunction of the backlight or power converter. You should also make sure that the electrolytic capacitors of the secondary rectifiers of the common power supply are working.
Repair of the VIT71865.50 LOGAN Rev3 inverter is complicated by the fact that in case of any malfunction or emergency, even if the lamps are unevenly worn, protection is triggered, which turns it off for fire safety. Diagnostics become impossible and protection needs to be disabled.
Turning off the protection for diagnostic purposes, it must be remembered that in this case there is a risk of failure of the power elements of the inverter. Upon completion of the diagnosis, all regular protection circuits should be restored.
Motherboard B must be checked if there is no reaction to the remote control and function buttons, the standby indicator blinks or lights up continuously. In such cases, if the power supply circuits of the microcircuits are working, a software update may be necessary.
The malfunction of the ENG37E10KF tuner is established after checking the software and all the supply voltages at its terminals, including the varicap supply voltage (30-33V).
Remember! Attempts to self-repair by users of the SONY KDL-37S5600 TV without the appropriate qualifications and the necessary experience can lead to serious negative consequences!
Service manual / schematic diagram -------------> Sony KDL-32/37/40S5600 chassis EX2N-Peppermint
The appearance of MainBoard 1-878-999-21 is shown in the figure below:1-878-999-21
The appearance of the power supply
Main features of the device SONY KDL-37S5600:
Installed matrix (LCD panel) T370HW02 V.B.
The matrix control uses the Timing Controller (T-CON) T370HW02.
The VIT71865.50 inverter is used to power the backlight lamps, it is controlled by the OZ964GN PWM controller. As power elements of the inverter, keys of the type P2504BDG are used.
The necessary supply voltages for all nodes of the SONY KDL-37S5600 TV are generated by the 3H267W-1 power supply module or its analogs using SSC9503 (16), A6079M (7) microcircuits.
MainBoard - the main board (motherboard) is a module 1-878-999-21, using chips PNX85433EH200CC, NAND512W3A2CN6F, E5116AJBG, TDA9995HL / C1, and others.
The ENG37E10KF tuner provides TV reception and channel tuning.
Additional technical information about the panel:
Brand: AUO
Model: T370HW02 VB
Type: a-Si TFT-LCD, Panel
Diagonal size: 37 inch
Resolution: 1920x1080, FHD
Display Mode: AMVA, Normally Black, Transmissive
Active Area: 819.36x460.89 mm
Surface: Antiglare (Haze 11%), Hard coating (3H)
Brightness: 500 cd / m²
Contrast Ratio: 2500: 1
Display Colors: 16.7M (8-bit), CIE1931 72%
Response Time: 6.5 (G to G)
Frequency: 60Hz
Lamp Type: CCFL Embedded (Inverter)
Signal Interface: LVDS (2 ch, 8-bit), 51 pins
Voltage: 12.0V