Sony Bravia 40EX400 – SMPS schematic

Used ICs - MIP2H2 – CXA3809M

SMPS [Power supply regulator board] - circuit diagram

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Color TV circuit diagram – CRT type – Using ICs TDA9850 VIF – PT11400 – TDA9570H Syscon Chroma Jungle – BR24C08-F Syscon Memory

CRT type color TV Circuit diagram - Used ICs: TDA9850 VIF – PT11400 – TDA9570H Syscon Chroma Jungle – BR24C08-F Syscon Memory - UC3842B SMPS control – 2SK2545 SMPS switching output FET - TDA1013B Audio output – HEF4052 Input selector – TDA9309 Vertical scan output – BU506DX Horizontal scan output – 1355218599 Fly-back Transformer  – 1353002400 Line Drive Transformer – PT11400 Remote control IC – 5V SCL-SDA type tuner

TDA 9570 H/N3/AI/1627

Circuit Diagram [Schematic -Full] (Click on the schematic to zoom in)

Toshiba 48L2400 – DL4845i – SMPS and audio amplifier circuit diagram – LED LCD TV

Toshiba 32L2400 – 40L2400 – 48L2400 – DL3245i – L4045i – DL4845i
Used ICs: OZ9916 – FSFR1700 - FAN7930 – FSL206MR – RT9108 

Audio amplifier schematic

SMPS and Back-light inverter schematic

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Sharp LC-15SH1U - Sharp LC-15AV1U – SMPS – Back-light inverter and LCD main circuit diagram

Fixed voltage ( or Auto voltage selectable ) power supply circuit is used in this unit.  If Main Fuse (F601) is blown, check to see that all components in the power supply circuit are not defective before you connect the AC plug to the AC power supply.  Otherwise it may cause some components in the power supply circuit to fail.
BECAUSE A HOT CHASSIS GROUND IS PRESENT IN THE POWER SUPPLY CIRCUIT, AN ISOLATION TRANSFORMER MUST BE USED.  ALSO, IN ORDER TO HAVE THE ABILITY TO INCREASE THE INPUT SLOWLY, WHEN TROUBLESHOOTING THIS TYPE POWER SUPPLY CIRCUIT, A VARIABLE ISOLATION TRANSFORMER IS REQUIRED.

SMPS schematic

Back-light inverter

LCD Main Schematic Diagram

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JVC AV21TMG4 – JVC AV2104T – CRT TV – Circuit diagram – voltage chart

  Do not touch the LIVE side GND or the LIVE side GND and the ISOLATED (NEUTRAL) side GND simultaneously. If the above caution is not respected, an electric shock may be caused. Therefore, make sure that the power cord is surely removed from the receptacle when, for example, the chassis is pulled out.

  Do not short between the LIVE side GND and ISOLATED(NEUTRAL) side GND or never measure with a measuring apparatus measure with a measuring apparatus ( oscilloscope, etc.) the LIVE side GND and ISOLATED (NEUTRAL) side GND at the same time.  If the above precaution is not respected, a fuse or any parts will be broken.

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PWB

Voltage chart

Staner BS 150 Bass Amplifier - circuit diagram

BS150 - Staner - Guitar Bass Amplifier - schematic

Schematic

Sanyo MCD ZX700F Circuit diagram – Bassxpander

TUNER ADJUSTMENTS

Use a plastic screw driver for adjustments.
Adjust the intermediate frequency of AM and FM to the frequency of ceramic filter.
Set of unit
Supply voltage : DC 12V
Speaker : 32
Function switch : RADIO

Circuit diagram - Micom

Audio

Radio

CD

PWB

Changhong PF29GA18A – How to enter service mode – circuit diagram – 29 inch color TV.

ETA-1D chassis is applied in PF29GA18A series.
By use of Toshiba V/C/D-MCU 2IN1 IC for TV small signal processing and bus control, the chassis enables TV tuning, adjustment, control and picture correction, featuring
high-integration, high-performance-to-price ratio and high-reliability and compact circuit with fewer external components. The chassis, widely used in small and medium TVs,
provides much more convenience for manufacturing and technical service. It includes:
2IN1 IC 8897PSBNG-4VB6 for PAL/NTSC small signal processing and bus control [TMPA8897CMANG /CPANG/CRANG /CSANG]
EEPROM AT24C16 for data memory
LA78041 for vertical output power amplifying
LA42102 for audio power amplifying
TA1343N for audio processor
FSCQ1265RTYDTU for power circuit adjustment and control.

BSC68DG (FBT)
Mask ROM: TMPA8897CPBNG (ROM size: 48k)
Mask ROM: TMPA8897CRBNG (ROM size: 56k)
Mask ROM: TMPA8897CSBNG (ROM size: 64k)
OTP ROM: TMPA8897PSBNG (ROM size: 64k)
Color systems: PAL, NTSC
Sound systems: D/K B/G I M
236 programs preset
AV stereo
I2C bus control
Electronic program table
Intelligent lock
Biorhythm
Calendar inquiry.

To enter the DESIGN/SERVICE mode
Set the volume to 0.

Press and hold the MUTE button on the remote control, and press the MENU button on the TV to enter the SERVICE mode.

In this case, blue “D” is displayed on the upper center of the screen.

To exit from the D mode, turn off the TV set by the POWER button on the remote control.

Caution: The user service mode adjustment can be changed only when service personnel adjust the whole set data during servicing. As the control data have dramatic effects on functions and performance of the TV, service personnel should not tell user how to enter the SERVICE mode to avoid improper data settings.

Circuit diagram

It’s impossible to check the power part separately from the main chassis board as the part is mounted on the main chassis board. The power components, etc. should be checked for burnout when power-on. If burned out, do not power on the TV again until the cause is found out.

SMPS and system-chroma junge circuit - Split

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