SONY
Model: KDL-32P2530
Chassis / Version: SE-1T
Panel: T315XW02 V.1
T-CON: T315XWO2 V0
Inverter (backlight): DARFON 4H.V0708.401 / C
PWM Inverter: OZ964SN
MOSFET Inverter: P5504EDG NICOS
Trans Inverter: 4002Y708006 (GP) –03 4002Y652008 (GP) -04
Power Supply (PSU): 1-870-685-21 A-1189-415-A G1
PWM Power: MCZ23001B (18n), SK751 (8n), STR-A6169 (8)
MOSFET Power: 2SK3469
MainBoard: 1-872-686-11 (A-1242-773-A), A1 A-1189-407-A 1-870-677-13 BDT
IC MainBoard: TDA9974AHS / 8/12, NEC D61123F1-100, TK11185CSCL-G, PQ1CY1032ZP
Control: Remote: RM-ED007, IR 1-870-680-13
Technical Specifications KDL-32P2530K
SONY KDL-32P2530
General recommendations for repairing TV LCD
Like any other TV, SONY KDL-32P2530 it is advisable to start repairing with an external inspection for visible changes in the external and internal elements. Sometimes, only by some signs can we determine the further direction of the localization of the fault. In most cases, the repairman can guess the causes of the defect and possible consequences by the characteristic signs of typical TV defects, for example, ring cracks formed in the soldering of element leads, swollen rectifier filter capacitors, charred resistors and other circuit elements.
In cases where the SONY KDL-32P2530 TV does not turn on, does not respond to the remote control and buttons, no indicators on the front panel light up or blink and there are no sounds and no signs of operability when turning on, the G1 A- power supply module is most likely faulty 1189-415-A or, which is much less common, there is no processor power on the motherboard. 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 2SK3469.
As a rule, the keys of flyback converters, which are used as an N-Fet field effect transistor on a separate radiator, or integrated with the MCZ23001B (18n), SK751 (8n), STR-A6169 (8) PWM controller in a single chip, are quite reliable and rarely fail for no reason. The reasons for the breakdown of the key should be sought by checking other components of the circuit - electrolytic capacitors, resistors and semiconductor elements of the primary circuit. The PWM chip is checked by replacing it with a known good one.
When using an active Power Factor Correction (CMC) circuit in the power module, the search for faulty elements is somewhat more complicated.
If the SONY KDL-32P2530 does not have an image, but there is sound and the TV is controlled by the remote control, a malfunction in the display backlight nodes is likely. The lamps or the power converter - inverter may be faulty. Often in such cases, when you turn on the TV, an image appears and immediately disappears. First of all, it is necessary to verify the operability of the electrolytic capacitors of the rectifier filter supplying the inverter, and check the LCD lamps by connecting external and obviously serviceable for diagnosis to the connectors.
Repair of the DARFON 4H.V0708.401 / C inverter is complicated by the fact that in case of any malfunction or emergency, even if the lamps wear unevenly, a protection is triggered, which turns it off for fire safety. Diagnostics become impossible and protection needs to be disabled.
When diagnosing with the protection off, special precautions must be taken, because there is a risk of failure of the power elements of the inverter. After the diagnosis, it is imperative to restore the protection circuits for the inverter to operate normally.
In cases of attempts to repair the motherboard BDT 1-872-686-11 (A-1242-773-A), A1 A-1189-407-A 1-870-677-13, it is necessary to check the operability of the power supply circuits of the microcircuits and, if possible , make a software update. When repairing an MB board, you need to check its components TDA9974AHS / 8/12, NEC D61123F1-100, TK11185CSCL-G, PQ1CY1032ZP. Defective items should be replaced.
Once again, we remind TV users: you should not make attempts to repair it yourself without the appropriate knowledge, experience and the necessary qualifications! Trust the repair only to professionals with sufficient experience in the field of electronic equipment repair.
Service manual / schematic diagram -------------------> Sony KDL-26P2520, KDL-32P2520, KDL-26P2530, KDL-32P2530, KDL-40P2530 CHASSIS SE-1
PSU / schematic diagram -------------------> 1-870-685-21
The appearance of MainBoard 1-872-686-11 is shown in the figure below:1-872-686-11
1-872-686-11 can be used in televisions:
SONY KDL-26P2530 (Panel T315XW02 V1), SONY KDL-32P2520 (Panel T315XW02 V.1.), SONY KDL-32P2530 (Panel T315XW02 V.1), SONY KDL-40P2530 (Panel LTA400WT-L05 1-802-386-21), SONY KDL-40U2520 (Panel LTA400WT-L05), SONY KDL-40U2530K (Panel LTA400WT-L05).
The appearance of the power supply
Main features of the device SONY KDL-32P2530:
Installed matrix (LCD panel) T315XW02 V.1.
The matrix control uses the Timing Controller (T-CON) T315XWO2.
A DARFON inverter is used to power the backlight, controlled by the OZ964SN PWM controller. A transformer 4002Y708006 (GP) –03 4002Y652008 (GP) -04 is installed in the inverter converter. As power elements of the inverter, keys of the type P5504EDG NICOS are used.
The necessary supply voltages for all nodes of the SONY KDL-32P2530 TV are generated by the power module 1-870-685-21, or its analogs using microchips MCZ23001B (18n), SK751 (8n), STR-A6169 (8) and power switches of the type 2SK3469 .
MainBoard - the main board (motherboard) is a module 1-872-686-11, using TDA9974AHS / 8/12, NEC D61123F1-100, TK11185CSCL-G, PQ1CY1032ZP and others.
Additional technical information about the panel:
Brand: AUO
Model: T315XW02 V1
Type: a-Si TFT-LCD, Panel
Diagonal size: 31.5 inch
Resolution: 1366x768, WXGA
Display Mode: AMVA, Normally Black, Transmissive
Active Area: 697.68x392.26 mm
Surface: Antiglare, Hard coating (3H)
Brightness: 500 cd / m²
Contrast Ratio: 1200: 1
Display Colors: 16.7M (8-bit), CIE1931 72%
Response Time: 8 (G to G)
Frequency: 60Hz
Lamp Type: CCFL Embedded (Inverter)
Signal Interface: LVDS (1 ch, 8-bit), 30 pins
Voltage: 5.0V
