Schematic Diagrams

Friday, January 13, 2023

Beko CRT CTV schematic diagram

Used ICs: TDA2822, TDA9830, TDA16846, TDA8357, TDA9345. 24C08AN-2.7

Bouyer ST30, Bouyer ST20 Valve Amplifier schematic diagrams

Bouyer ST20 Valve amplifier Schematic

Used valves: EF86, ECC83 (12AX7), 6L6, GZ34

Bouyer ST30 Valve amplifier schematic

Used valves:EF86, 12AX7 (ECC83), 6L6, GZ34

Sunday, January 1, 2023

Philips Android LCD TV-main board 715GA006- Power supply board SMPS schematics - A 715GA052 PSU-A 715GA018 PSU-A 715GA025 PSU

Power supply SMPS for A 715GA052 PSU (For 43”85x5/9235 Series)

AC Input

PFC with LD7592GS

Main Power

LED

A 715GA018 PSU (For 50” 85x5/9xx5 & 58” 85x5/9xx5 Series) AC Input

PFC with LD7592S

LLC with SSC3S927

Driver with PF7904

A 715GA025 PSU (For 55” 9435 & 65” 85x5/9xx5 & 70” 85x5/9xx5 Series) - AC Input

PFC with LD7592

LLC with SSC3S927

LLC SSC3S931 with PF7302

JUMPER

Wednesday, December 14, 2022

JVC UX-S57 MICRO COMPONENT SYSTEM SCHEMATIC DIAGRAM

UX-S57 - CD-ROM No.SML200405

Block diagram

Printed circuit boards

Schematic diagrams

Sunday, November 13, 2022

Samsung LCD TV UB6V, UB7W Trouble shooting. No video, No sound, No power, No Video CVBS, No component

Samsung UE**B6000VWXXC, UE**B7000WWXXC, UE**B7020WWXXC-43 ,46 and 55 inch LCD TVs

Check List for Initial operation

Power cord in to the set
Power switch on
You can sound SMPS relay
* If you can’t sound, check the STB_5V appear at BD229 in main board Back-light on
* If back-light not on, check the main board power line And check the dimming cable Picture on or display the banner
* If display is nothing, check the LVDS cable And LVDS clk/data line

Inform to change the Assembly

Check the Side-Label Ver. in set (important)
Order to the item with Side-Label Ver.
If you change the item, see the service-bulletin for setting the factory option.

Inform about error messages

If set is connected internet and software is old version, popup below message.
“ version XXXXX is available, upgrade?”
And select OK, you can update your LCD TV.

Panel or Main?

No Power

No video analogue PC

No video HDMI

No video Tuner-CVBS

No video Tuner DTV

No video CVBS

No video Component

No sound

Sunday, October 16, 2022

JBL PARTYBOX 200, JBL PARTYBOX 300 Schematic

Applicable to:

JBLPARTYBOX200AS, JBLPARTYBOX200BR, JBLPARTYBOX200CN, JBLPARTYBOX200EU, JBLPARTYBOX200IN,
JBLPARTYBOX200JN, JBLPARTYBOX200RU, JBLPARTYBOX200AM
JBLPARTYBOX300AS, JBLPARTYBOX300BR, JBLPARTYBOX300CN, JBLPARTYBOX300EU, JBLPARTYBOX300IN,
JBLPARTYBOX300JN, JBLPARTYBOX300RU, JBLPARTYBOX300AM

SPECIFICATIONS

AC power input: 100-240V ~ 50/60Hz
DC power input: 12V 8A
Built-in battery: Li-ion 10.4Ah, 7.2V (PartyBox 300)
Power consumption: 60W
Standby power consumption: <2W with BT connecting;<0.5W without BT connecting
USB output: 5V 2.1A
Speaker drivers: 2 woofer + 3 tweeter
Speaker impedance: 4 ohm
Total output power: 120 W RMS