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Repair of the TOSHIBA 22L1353R TV

Technical description and composition of the TV TOSHIBA 22L1353R, panel type and modules used. The composition of the modules.

Model: 22L1353R
Chassis / Version: 17MB95
Panel: LM215WF4
Power Supply (PSU): 17IPS61-3 VESTEL
PWM Power: ICE3BR0665J
MainBoard: 17MB95-2.1
IC MainBoard: NAND Flash: H27U2G8F2CTR; SPI FLASH: MX25L1605A, W25Q80

Close specifications! Learn more ...
LCD TV LED 22L1353
Screen diagonal:22 "(56 cm)
Screen Format:16: 9
Update frequency:100 Hz
LED backlight:there, Edge LED
HD support:1080p Full HD
Brightness:300 cd / m2
Contrast:1000: 1
Dynamic contrast:20,000: 1
Viewing angle:160 °
Pixel response time:5 ms
Progressive scan:there is
TV standards:PAL, SECAM, NTSC
Digital tuner:DVB-T MPEG4, DVB-T2, DVB-C
Teletext:there is
DTV Formats:480i, 480p, 576i, 576p, 720p, 1080i, 1080p
Multimedia:MP3, MKV, JPEG
Stereo sound:there is
Sound power:5 W (2x2.5 W)
Acoustics:two speakers
Interface:AV, component, SCART, VGA, HDMI, USB x2
Headphone jack:there is
TV weight:4.7 kg
Dimensions:with stand 518x358x163 mm 
without stand 518x321x46 mm
Network consumption:30 W

General recommendations for the repair of TV LCD LED

It is recommended to begin the diagnosis and repair of TOSHIBA 22L1353R, as well as other electronic devices, with an external inspection of external and internal components. Visible damage to the elements can sometimes indicate the direction of the search for a defect even before the start of the necessary measurements. Ring cracks in the soldering of the terminals of heated elements, swollen electrolytic capacitors, a charred layer of paint on the resistors - all this for the repairman can be a significant hint in assumptions about the causes and consequences of the malfunction.
If the TV 22L1353R does not turn on, does not make any sounds when it is turned on, and do not light or blink on the front panel, there are no indicators, there is a high probability of a malfunction in the power module. In some cases, only the stabilizer or the power converter of the control processor may be faulty, which is typical of some TOSHIBA models. Diagnostics and repair of a common power supply should always begin with checking the main fuse and the state of the electrolytic capacitors of the secondary rectifier filters. Faulty and blown-up capacitors should be replaced with new ones. When the fuse breaks, it is advisable to check for breakdown, first of all, all the power semiconductor elements of the converter and the rectifier diode bridge of the network, as well as a large electrolytic capacitor of the network rectifier filter.
If the breakdown of the power switch is detected, it should be remembered that in a pulsed power supply (SMPS) it does not break down by itself for no reason, which should be looked for by checking other elements of the primary circuit, - electrolytic capacitors, the PWM controller CE3CR0665J, which can be checked only replacement, as well as other semiconductor elements (diodes, transistors, zener diodes).
If the TOSHIBA 22L1353R does not have an image, there is sound and the channels are switched, there is a probability of a malfunction in the LED backlight circuit of the LG panel, or their power converter, the LED driver. Sometimes when you turn on the image appears and disappears immediately. In such cases, it is necessary to check the electrolytic capacitors of the power filter of the LED driver itself, including in the secondary rectifier of the main power supply unit. 
To check the health of the LEDs, as well as contact connections in the chain of lines, disassembly of the panel is necessary. 
To identify a break in the line of LEDs without disassembling the panel will require a current source. Open transitions connected in series, a simple multimeter is impossible, you need a voltage of several tens of volts.
If the motherboard MAIN 17MB95-2.1 is faulty, first of all it is necessary to check all the linear stabilizers and power converters of its chips, as well as, if necessary, update the software. Sometimes you can check the health MB can only be replaced.
Attention! Users and owners of TVs 22L1353R, who do not have the appropriate qualifications, knowledge and experience, strongly discourage attempts at self-repair in order to avoid negative consequences that may lead to complete overhaul of the device.

Download: Toshiba manual and service manual - Vestel Main 17MB95-2 17IPS61-3 VESTEL Power supply
module schematic .

Additional Repair MainBoard

The appearance of the MainBoard 17MB95-2.1 is shown below:

17MB95-2.1 can be used in TVs:
PHILIPS 40PFL3018T / 12 (Panel VES400UNDS-01), TELEFUNKEN L32H125A3 (Panel VES315WNEA-01-B), TOSHIBA 22L1353R (Panel LM215WF4), TOSHIBA 22L1354R (Panel LM215WF4, that's for you
Power Supply Appearance 
The main features of the device TOSHIBA 22L1353R:
Installed matrix (LED-panel) LM215WF4. 
The formation of the necessary supply voltages for all nodes of the TOSHIBA 22L1353R TV is provided by the 17IPS61-3 power supply module, or its analogues using ICE3BR0665J microcircuits. 
MainBoard - the main board (motherboard) is a 17MB95-2.1 module, using NAND Flash chips: H27U2G8F2CTR; SPI FLASH: MX25L1605A, W25Q80 and others.
Additional panel technical information:
Brand: L & T 
Model: LM215WF4-TRA1 
Type: a-Si TFT-LCD, Panel 
Diagonal size: 21.5 inch 
Resolution: 1920x1080, FHD 
Display Mode: TN, Normally White, Transmissive 
Active Area: 476.64x268.11 mm 
Surface: Antiglare, Hard coating (3H) 
Brightness: 250 cd / m² 
Contrast Ratio: 1000: 1 
Display Colors: 16.7M (6-bit + Hi-FRC), CIE1931 68% 
Response Time: 1.3 / 3.7 (Tr / Td ) 
Frequency: 60Hz 
Lamp Type: 4 Strings WLED Without Driver 
Signal Interface: LVDS (2 ch, 8-bit), 30 pins 
Voltage: 5.0V


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