Technical description and composition of the TOSHIBA 37C3500PR TV, type of panel and applicable modules. The composition of the modules.Toshiba
Model: 37C3500PR
Panel: LC370WX4 (SL) (C1)
T-CON: PE0415 FLI8548H-LF, CXB1444R, HY50U281622FTP-4, 24C08WP, PCM1754, 39VF3201, R4580I, 4128BWP
Inverter (backlight): PPW-EE37TS-0 (Y)
PWM Inverter: OZ9966SN, 10393
Trans Inverter: PPW-EE37-Y
Power Supply (PSU): PE0391, PE0392
PWM Power: STR-Z2467, STR-W6765, CE-1059
MainBoard: PE0424, PE0415
IC MainBoard: TA8246AHQ, MSP4410K 07, T5CB5-6UK1, CD4052B, R4580I
Tuner: ENG37E01GF
Control: CT-90288
Specifications 37C3500P
TOSHIBA 37C3500PR
General recommendations for repairing TV LCD
TOSHIBA 37C3500PR TV, like any other, it is advisable to start repairing it by inspecting the internal and external visible physical visual changes. Often, by the external signs and nature of some damage, it is possible to draw preliminary conclusions and determine a further algorithm for troubleshooting. Experienced repairmen are often aware of the causes of the defect and possible consequences, for example, from ring cracks in the soldering of the leads of the elements, as well as from swollen capacitors or resistors burnt to coal dust and other external indirect signs.
Sometimes the TOSHIBA 37C3500PR TV simply 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 common power module PE0391, PE0392. In this case, first of all, it is necessary to check the fuse at the input of the network. If it is broken, then you should check for breakdown of the PN junctions of the rectifier bridge diodes and the key transistor of the N-FET converter, which can either be on a separate radiator or integrated with a PWM controller in a common chip. Possible options.
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 itself STR-Z2467, STR-W6765, CE-1059 may be faulty. It is also necessary to check all the semiconductor elements of the stabilization circuit in the primary and secondary circuits.
If an active Power Factor Corrector (PFC) is used in the power module circuitry, it is sometimes more difficult to troubleshoot. Knowledge, experience, intuition and skills in such cases have a great advantage for a successful repair.
If the TOSHIBA 37C3500PR 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.
In most cases, the diagnosis and repair of the PPW-EE37TS-0 (Y) inverter is difficult due to the organization of protection, which turns it off in emergency cases to avoid fires during short circuits or open circuits in high voltage circuits and during depressurization of lamps. Often, repairmen block the protection circuits in order to make the necessary measurements at the inverter control points to identify the causes of the defect.
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 PE0424, PE0415, it is necessary to check the operability of the power stabilizers of the microcircuits and, if possible, update the software (software). Often, the MB (SSB) card must be replaced in case of complex malfunctions that are difficult to detect. When trying to repair, you should check its elements - TA8246AHQ, MSP4410K 07, T5CB5-6UK1, CD4052B, R4580I and replace failed chips with new ones.
In cases where there is no tuning to the local television channels, you should make sure that there is a varicap supply voltage (30-33V) and other supply voltages at the terminals of the ENG37E01GF tuner.
It should be remembered! Attempts to repair the TOSHIBA 37C3500PR TV, in the absence of the necessary qualifications and experience, are categorically not recommended and are fraught with negative consequences, up to the complete non-repairability of the device!
SCHEMATIC DIAGRAM / SERVICE MANUAL ------------------> Toshiba 37C3500P Service manual and schematic diagram
1. Service Manual 125 pages on models 32C3500P, 32C3502P, 32C3005P, 32C3006P, 37C3500P, 37C3502P, 37C3005P, 37C3006P, 42C3500P, 42C3502P, 42C3005P, 42C3006P.
2. Service Manuals with Schematic Diagrams 146 pages 2007 on models 32C3500P, 32C3500PR, 32C3502P, 32C3005P, 32C3006P, 37C3500P, 37C3502P, 37C3005P, 37C3006P, 42C3500P, 42C3502P, 42C3005P, 42C3006P.
3. Service Manuals with Schematic Diagrams 138 pages 2007 on models 32C3500P, 32C3502P, 32C3005P, 32C3006P, 37C3500P, 37C3502P, 37C3005P, 37C3006P, 42C3500P, 42C3502P, 42C3005P, 42C3006P.
The appearance of MainBoard PE0424 is shown in the figure below:
PE0424
PE0424 can be used in TVs:
TOSHIBA 32C3006PR (Panel LCD PANEL AX080E002B 75007870), TOSHIBA 32C3500PR (Panel AX080E002B), TOSHIBA 37C3500PR (Panel LC370WX4 (SL)(C1)), TOSHIBA 42C3500PR (Panel LC420WX8-SLC1 75009814).
Key Features of the TOSHIBA 37C3500PR:
Installed matrix (LCD panel) LC370WX4 (SL) (C1).
The matrix control uses the Timing Controller (T-CON) PE0415.
The PPW-EE37TS-0 (Y) inverter is used to power the backlight lamps, it is controlled by the PWM controller OZ9966SN, 10393. The PPW-EE37-Y transformer is installed in the inverter converter.
The necessary supply voltages for all nodes of the TOSHIBA 37C3500PR TV are generated by the PE0391 power module or its analogs using the STR-Z2467, STR-W6765, CE-1059 microcircuits.
MainBoard - the main board (motherboard) is a PE0424 module, using chips TA8246AHQ, MSP4410K 07, T5CB5-6UK1, CD4052B, R4580I and others.
The ENG37E01GF tuner provides television reception and channel tuning.
Information from an alternative source:
Toshiba 37C3500PR
Panel Type (Matrix): LC370WX4 (SL) (C1), MAIN - PE0424, Tuner - ENG37E01GF, TA8246AHQ, MSP4410K 07, T5CB5-6UK1, CD4052B, R4580I, T-CON - PE0415, FLI8548H-LF, CXB1444164F22YF16YF4 , 24C08WP, PCM1754, 39VF3201, R4580I, 4128BWP, INVERTOR - PPW-EE37TS-0 (Y), Tr-r. - PPW-EE37-Y, OZ9966SN, 10393, PSU - PE0391, SMPS - STR-Z2467, TR Chopper - ST-3210, SMPS - STR-W6765, TR Chopper - TPW3586AD, PSU - PE0392, CE-1059 - microassemblies, 8050W
Remote control: - CT-90288
Additional technical information about the panel:
Brand: LG.Philips LCD
Model: LC370WX4-SLC1
Type: a-Si TFT-LCD, Panel
Diagonal size: 37 inch
Resolution: 1366x768, WXGA
Display Mode: S-IPS, Normally Black, Transmissive
Active Area: 819.6x460.8 mm
Surface: Antiglare (Haze 13%), Hard coating (3H)
Brightness: 500 cd / m²
Contrast Ratio: 1000: 1
Display Colors: 16.7M (8-bit)
Response Time: 6 (G to G)
Frequency: 60Hz
Lamp Type: 16 pcs EEFL Embedded (Inverter)
Signal Interface: LVDS (1 ch, 8-bit), 30 pins
Voltage: 12.0V
TOSHIBA 37C3500P LCD TV with LC370WX4 LCD, 37 "(94 cm) diagonal display in 16: 9 format. 500 cd / m² screen brightness is provided by CCFL (EEFL) fluorescent lamps. The ratio of maximum brightness to minimum (contrast) is 1000: 1. Dynamic contrast ratio of 5000: 1 is achieved by special control of the backlight.You can view images in high quality HD at a resolution of 1366x768 pixels in the standard of graphic decomposition 720p (HD Ready). The input high-frequency or video signal can be processed in analog systems PAL, SECAM, NTSC. Graphic processing and digital signal generation occurs in the standards 480i, 480p, 576i, 576p, 720p, 1080i.
The power of the sound speaker system 20 W (2x10 W) provide two speakers. It uses a NICAM stereo signal processing system and Sound Surround.
The external interface (communication with other devices) is supported by standard input and output connectors: antenna input (RF), AV, audio x2, component, SCART x2, RGB, VGA, HDMI x2. An output for connecting headphones is provided. To connect a computer or laptop to this TV model, a VGA (D-Sub 15) connector is used on the TV case, this interface supports resolutions: 640x480, 800x600, 1024x768, 1280x1024.
The power consumed by the TV in the operating mode from the network is 173 watts.
Overall dimensions: with stand 920x661x285 mm, without stand 920x614x124 mm.
TV Weight: with stand: 20.5 kg, without stand: 18.5 kg.
Attention! The TOSHIBA 37C3500P LCD TV panel LC370WX4 (SL) (C1) is its most expensive component.
Avoid hitting the glass and exerting pressure on the screen to avoid permanent damage to the LCD panel!