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1-16 (No.YA316)

CORNER
adjustment

Signal 
generator

Remote
control unit

U.COR

L.COR

(1) Receive a crosshatch signal.
(2) Enter the SERVICE MODE.
(3) Press the [

RED

] key to enter the 

H/V

 adjustment

group.

(4) Select 

U.COR

.

(5) Adjust 

U.COR

 until vertical lines at the upper corners

of the picture frame become vertical and parallel to
vertical corner sides of picture tube.

(6) Check and readjust 

U.COR

 item if the adjustment

becomes improper after some other geometric
adjustments are done.

(7) Select 

L.COR

.

(8) Adjust 

L.COR

 until vertical lines at the lower corners

of the picture frame become vertical and parallel to
vertical corner sides of picture tube.

(9) Check and readjust 

L.COR

 item if the adjustment

becomes improper after some other geometric
adjustments are done.

(10) Press the [

INFORMATION

] key to memorize the set

value.

ROTATION
adjustment

Signal 
generator

Remote
control unit

TILT

(1) Receive a crosshatch signal.
(2) Enter the SERVICE MODE.
(3) Press the [

RED

] key to enter the 

H/V

 adjustment

group.

(4) Select 

TILT

.

(5) Adjust 

TILT

 to rotate the complete raster clockwise

and counter clockwise depending on the CRT.

(6) Check and readjust 

TILT

 item if the adjustment

becomes improper after some other geometric
adjustments are done.

(7) Press the [

INFORMATION

] key to memorize the set

value.

NTSC
HORIZONTAL
SIZE
adjustment

Signal 
generator

Remote
control unit

NTSCHS

(1) Receive a NTSC crosshatch signal.
(2) Enter the SERVICE MODE.
(3) Press the [

RED

] key to enter the 

H/V

 adjustment

group.

(4) Select 

NTSCHS

.

(5) Adjust 

NTSCHS

 until no white bars on both the left

and right sides of the crosshatch will be visible nor
screen will be so wide.

(6) Check and readjust 

NTSCHS

 item if the adjustment

becomes improper after some other geometric
adjustments are done.

(7) Press the [

INFORMATION

] key to memorize the set

value.

Item

Measuring 

instrument

Test point

Adjustment part

Description

Straight

Straight

Screen size

Very
close

Very
close

Picture size 100%

Содержание AV-28ED5BN, AV-28ED5SN

Страница 1: ... Victor Company of Japan Limited No YA316 2005 9 COLOUR TELEVISION YA316 2005 5 AV 28ED5BN AV 28ED5SN TABLE OF CONTENTS 1 PRECAUTION 1 3 2 SPECIFIC SERVICE INSTRUCTIONS 1 4 3 DISASSEMBLY 1 5 4 ADJUSTMENT 1 9 5 TROUBLESHOOTING 1 19 ...

Страница 2: ...43MHz SECAM 4 40625MHz 4 25MHz NTSC 3 58MHz 4 43MHz Teletext System FLOF Fastext Power Input AC220V AC240V 50Hz Power Consumption 150W Standby 3W Picture Tube Visible size 66 6cm 28 Measured diagonally H 53 3cm V 40 0cm High Voltage 30 0kV at zero beam current Speaker MAIN 5 7cm 16cm oval type 2 TWEETER 5cm 2 Audio Power Output 10W 10W Aerial Input Terminal 75Ω unbalanced coaxial EXT 1 EXT 2 Input...

Страница 3: ...lacements or alternatives approved by the manufacturer of the complete product 7 Do not check high voltage by drawing an arc Use a high voltage meter or a high voltage probe with a VTVM Discharge the picture tube before attempting meter connection by connecting a clip lead to the ground frame and connecting the other end of the lead through a 10kΩ 2W resistor to the anode button 8 When service is ...

Страница 4: ...sed TV OUT Used LINE OUT 2 AUDIO R input 500mV rms Nominal High impedance Used R1 Used R2 3 AUDIO L output 500mV rms Nominal Low impedance Used TV OUT Used LINE OUT 4 AUDIO GND Used Used 5 GND B Used Used 6 AUDIO L input 500mV rms Nominal High impedance Used L1 Used L2 7 B input 700mV B W 75 Ω Used Not used 8 FUNCTION SW SLOW SW Low 0V 3V High 8V 12V High impedance Used Used 9 GND G Used Used 10 S...

Страница 5: ...ll 3 1 7 REMOVING THE POWER SWITCH PWB Remove the REAR COVER 1 Remove the 2 screws G and remove the POWER SWITCH PWB 3 1 8 REMOVING THE LED PWB Remove the REAR COVER Remove the POWER SWITCH PWB 1 Remove the 2 screws H and remove the LED PWB 3 1 9 REMOVING THE SPEAKER and TWEETER Remove the REAR COVER 1 Remove the 4 screws I and remove the SPEAKER 2 Remove the other hand SPEAKER in the same steps 3...

Страница 6: ...1 6 No YA316 Fig 1 x4 x4 x4 x2 x2 x2 x2 x8 LED PWB POWER SWITCH PWB TWEETER MAIN PWB BASE FEATURE BOX PWB REAR COVER BACK DOOR CRT SOCKET PWB SPEAKER SIDE CONTROL PWB B A C D E F G H I J x4 x2 ...

Страница 7: ...UND 3 INSTALL 4 FEATURE Setting item Setting position POWER Off CHANNEL PR1 Setting item Setting position CHANNEL PR1 ZOOM AUTO Setting item Setting position Picture Mode Standard Brightness Centre Contrast Centre Colour Centre Sharpness Centre Colour Temp Centre Noise reduction OFF Zoom AUTO Setting item Setting position Volume Centre Balance Centre Bass Centre Treble Centre Hyper Sound OFF 3D SO...

Страница 8: ...he tweezers and remove the chip part Transistors diodes variable resistors etc 1 Apply extra solder to each lead 2 As shown in the figure push the part with tweezers and alternately melt the solder at each lead Shift and remove the chip part NOTE After removing the part remove remaining solder from the pattern 2 How to install Chip parts Resistors capacitors etc 1 Apply solder to the pattern as in...

Страница 9: ...tion or input signal for adjustment 6 Never touch any adjustment parts which are not specified in the list for this adjustment variable resistors transformers condensers etc 7 Presetting before adjustment Unless otherwise specified in the adjustment instructions preset the following functions with the remote control unit 4 2 MEASURING EQUIPMENT 1 DC voltmeter or digital voltmeter 2 Signal generato...

Страница 10: ...ting value 4 5 3 HOW TO EXIT SERVICE MODE 1 Press the MENU key PRODUCTION i STORE MENU EXIT H V FULL MODE V SHIFT V SIZE H SHIFT H SIZE S COR LINRT ANGLE BOW TRAPEZ PARAB U COR L COR TILT TRPZD NTSCHS TXTV HS04_3 JVC52 VIDEO WdR WdG WdB CuR CuG CuB G2Cu YDP AGC APSW APS T_T T_P YDS YDN EXT3 DVD C M 4 3 SERVICE SERVICE MENU 1 PRODUCTION i STORE MENU EXIT ADJUSTMENTS PIP CNTRST PIP YDelay PIP Frame ...

Страница 11: ... PAL I 3 SECAM B G 4 SECAM D K 5 SECAM L L 6 AUST P M FACTORY SET MENU SERVICE FATORY SETTINGS Brightness Contrast Colour Brightness Contrast Colour Brightness Contrast Colour Brightness Contrast Colour WdR WdG WdB WdR WdG WdB USER USER USER BRIGHT BRIGHT BRIGHT STANDARD STANDARD STANDARD SOFT SOFT SOFT WARM WARM WARM COOL COOL COOL FACTORY SETTINGS SERVICE MENU 1 Colour key function in the SERVIC...

Страница 12: ...ntrol unit SCREEN VR On the FBT 1 Press the MUTING and INFORMATION key at the same time to enter the SERVICE MODE 2 Press the BLUE and TELETEXT key respectively to enter screen adjustment from the service mode 3 Adjust the SCREEN VR until the G2 ADJUST OK sign appears Item Measuring instrument Test point Adjustment part Description AGC adjustment Signal generator Remote control unit DC volt meter ...

Страница 13: ...if the adjustment becomes improper after some other geometric adjustments are done 7 Press the INFORMATION key to memorize the set value VERTICAL S CORRECTION LINEARITY adjustment Signal generator Remote control unit S COR LINRT 1 Receive a crosshatch signal 2 Enter the SERVICE MODE 3 Press the RED key to enter the H V adjustment group 4 Select S COR 5 Adjust S COR until the size of squares on bot...

Страница 14: ...il no white bars on both the left and right sides of the crosshatch will be visible nor screen will be so wide 6 Check and readjust H SIZE item if the adjustment becomes improper after some other geometric adjustments are done 7 Press the INFORMATION key to memorize the set value ANGLE adjustment Signal generator Remote control unit ANGLE 1 Receive a crosshatch signal 2 Enter the SERVICE MODE 3 Pr...

Страница 15: ...s especially lines at the sides of the picture frame become parallel to the both sides of picture tubes as close as possible 6 Check and readjust TRAPEZ item if the adjustment becomes improper after some other geometric adjustments are done 7 Press the INFORMATION key to memorize the set value SIDE PIN adjustment Signal generator Remote control unit PARAB 1 Receive a crosshatch signal 2 Enter the ...

Страница 16: ... control unit TILT 1 Receive a crosshatch signal 2 Enter the SERVICE MODE 3 Press the RED key to enter the H V adjustment group 4 Select TILT 5 Adjust TILT to rotate the complete raster clockwise and counter clockwise depending on the CRT 6 Check and readjust TILT item if the adjustment becomes improper after some other geometric adjustments are done 7 Press the INFORMATION key to memorize the set...

Страница 17: ...em if the adjustment becomes improper after some other geometric adjustments are done 7 Press the INFORMATION key to memorize the set value 4 3 TUBE adjustment Signal generator Remote control unit HS04_3 1 Receive a crosshatch signal 2 Enter the SERVICE MODE 3 Press the RED key to enter the H V adjustment group 4 Select HS04_3 5 Adjust HS04_3 to adjust the proper horizontal size of 4 3 tube 6 Pres...

Страница 18: ...EN key to enter the VIDEO adjustment group 4 Select YDP 5 Adjust YDP until the colour transients on the colour bar pattern become as sharper as possible and colours between transients do not mix with each other 6 Press the INFORMATION key to memorize the set value SECAM Y DELAY adjustment Signal generator Remote control unit YDS 1 Receive a SECAM colour bar signal 2 Enter the SERVICE MODE 3 Press ...

Страница 19: ... No YA316 1 19 SECTION 5 TROUBLESHOOTING This service manual does not describe TROUBLESHOOTING ...

Страница 20: ... No YA316 AV MULTIMEDIA COMPANY VIDEO DISPLAY CATEGORY 12 3 chome Moriya cho kanagawa ku Yokohama kanagawa prefecture 221 8528 Japan Victor Company of Japan Limited VPT Printed in Japan ...

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