BN44-00262 Samsung, 715G3351 AOC L42H961 and Philips 40PFL3606 POWER SUPPLIES SCHEMATICS

 

Philips 40PFL3606 power board schematic

AOC L42H961 power board 715G3351 schematic

Samsung power board BN44-00262A schematic

Grundig THARUS 38 inch LCD TV 38-9210 - How to enter the service mode, service mode adjustments, full schematic

 

Service Menu

Calling up and working with the service menu
– Press the »AV/OK« and »POWER« buttons on the TV set at the same time.
The FACTORY menu (service menu) is displayed on the picture screen.

– Select the desired alignment function (row) using the »P–« or »P+« button on the TV set or on the remote control.
– Activate the alignment or change the settings using the »L–« or »L+« button on the set, or the » + « or » - « button on the remote control.
– Call up the main menu using the »i« button.

Exiting the service menu
– Repeatedly press the »i« button on the set or on the remote control until the menu disappears, or press the »OK« button on the remote control.

Alignment functions
Note: The functions of the FACTORY ADJ menu item are relevant for the alignment. Via the FACTORY ADJ menu item, the values for the MX88L281 1, AD9884 1, AD9884 2, and VPC3230 are automatically adjusted. The values indicated for MX88L281 1, AD9884 1, AD9884 2, VPC3230 serve as medium and basic values and are to be changed only if required.

FACTORY ADJ

CLOCK DELAY
– Connect a computer with installed "Acrobat Reader" to the SVGA socket.
Observe the setting of the graphics card.
– Call up the "1bit" test pattern in full picture mode of "Acrobat Reader" on the computer.
- Change the setting (typ. 15) until the picture is stable and the vertical lines are no longer fringed.

AUTO COLOR GAIN
– Connect a computer with installed "Acrobat Reader" to the SVGA socket.
Observe the setting of the graphics card.
– Call up the "Colorbar" test pattern  in full picture mode of "Acrobat Reader" on the computer.
If the chromatic regions in the bottom part of the test pattern should be coloured, repeat the alignment.
– After activating the alignment function, the alignment is carried out automatically.

OPTION – X3 – INVERT
– For the OPTION function, "X3 – INVERT" must be set.

TTX Local: PAN EUROPE
– For the TTX Local function, the following settings for country-specific
Teletext special characters are possible:
PAN EUROPE
CYRILLIC-RUSS
GREEK
ARAB
CYRILLIC-UKRA

TTX E/W: WEST
– For the TTX E/W function, it is possible to select between the
country-specific Teletext settings EAST and WEST.

MX88L281 1 (IC601)
– CONTRAST 25 (0…31)
– BRIGHT 15 (0…31)
– EDGE FILTER 0 (-63…+63)
– CLOCK DELAY 15 (0…15)
– EXPAND ON

AD9884 1 (IC360)
Note: this function can only be called up in PC mode.
– RED GAIN 127 (0…255)
– GREEN GAIN 127 (0…255)
– BLUE GAIN 127 (0…255)
– RED BIAS 31 (0…63)
– GREEN BIAS 31 (0…63)
– BLUE BIAS 31 (0…63)
– AUTO TRACKING (automatic function)
CLOCK 125 (0…250)
PHASE 15 (0…31)
– AUTO COLOR GAIN (see Point 3.1.2)

AD9884 2 (IC360)
Note: this function can only be called up in PC mode.
– INIT VCO CURRENT (automatic function)
SUB C VCO 1 (0…3)
SUB C CHG CURRENT 4 (0…6)

AD3230 (IC301)
Note: this function can only be called up in TV mode.
– CONTRAST 52 (0…63)
– BRIGHTNESS 9 (0…15)
– PEAKING 0 (0 / 1)
– CIP CONTRAST 7 (0…15)
– CIP BRIGHT 7 (0…15)

Block Diagram

Block diagram of the main board

PWBs

Schematic diagram

Toshiba RT 6015 STEREO RADIO CASETTE RECORDER-Dial cord restringing-wiring diagram – Mechanism and cabinet Exploded View

 

Used ICs: TA7358AP, TA7343P, TA7757P, TA7233P, TA7668BP, TA7233P, TA7343P

Dial cord restringing

Tight up the dial cord for the designated length, and cement after two ties.

Hook the dial cord to the spring and pass through the opening of the drum from the inside.

Turn the variable capacitor fully clockwise and mount the drum onto it.

[to prevent the variable capacitor from damage, slightly return it in the opposite direction and fasten the dial cord.]

Wind the dial cord in numerical order as illustrate.

Turn the variable capacitor fully counterclockwise and set the pointer to the “0” position in the dial scale.

Wiring diagram

Schematic

Mechanism exploded view

Cabinet exploded view

HBD 9250DVD H BUSTER Schematic

 

HBD 9250DVD H BUSTER -TUNER CIRCUIT DIAGRAM

HBD 9250DVD H BUSTER -  CPU CIRCUIT DIAGRAM

HBD 9250DVD H BUSTER - POWER CIRCUIT DIAGRAM

HBD 9250DVD H BUSTER  - BT CIRCUIT DIAGRAM

HBD 9250DVD H BUSTER - KEY CIRCUIT DIAGRAM

HBD 9250DVD H BUSTER - SD - BT POWER CIRCUIT DIAGRAM

HBD 9250DVD H BUSTER - DVD CIRCUIT DIAGRAM

GRUNDIG LCD TV-schematic-Berlin, Vision-7 and Vision 9- How to enter the service mode, service mode adjustments method [Full circuit diagram]

 

Always respect voltages. While some may not be dangerous in themselves, they can cause unexpected reactions that are best avoided. Before reaching into a powered TV set, it is best to test the high voltage insulation. It is easy to do, and is a good service precaution.

It makes sense to avoid exposure to electrical shock.  While some sources are expected to have a possible dangerous impact, others of quite high potential are of limited current and are sometimes held in less regard.

Calling up the Service Mode
– Press button " i " (Menu: PICTURE).
– Enter the code number "8500".

Functions of the buttons

“i”  > call up the dialog center or exit the service mode.

O [OK]  > call up the menus.

Up of Dn  > call up the dialogue line [point of menu]

+ or -   > call up the menus and chamging the settings.

O (blue)  > leave the submenu.

Exit the Service Mode
– Press button " i ".

Berlin

32-8970 T	GBH5132
37-8970 T	GBH5137
37-9980 T	GBI0837
42-9980 T	GBI0842

Vision 7

37-7965 T	GBH4137
37-7970 T	GBH5037
42-7970 T	GBH5042
47-7970 T	GBH5047
47-7971 T	GBH5247

Vision 9

37-9970 T USB	GBH3737
37-9980 T USB	GBH3837
42-9970 T USB	GBH3742
42-9980 T USB	GBH3842
47-9970 T USB	GBH3747
47-9980 T USB	GBH3847

Schematic Diagram