Wednesday, April 15, 2015

SANYO AVL3210 SERVICE MODE AMD POWER SUPPLY CIRCUIT

SANYO BLU RAY

SANYO AVL3210 

CRT TV

 SERVICE MODE AMD POWER SUPPLY CIRCUIT 

SERVICE MODE
1. Press “INPUT”, “2”, “5”, ”8” and “0” in turn to enter factory menu;
2.Press “CH+” and “CH-” to select adjustment items and press “VOL+” and “VOL-” to adjust value items,
3.Press “MENU” continuously to exit.
INITIALIZATION
Enter factory menu, select “OPTION” and “HOTEL OPTION” sub-menu, adjustment of items to see table.
Items
Preset
Introduce
HOTEL

0

1: HOTEL OPTION of factory menu is optional
0: HOTEL OPTION of factory menu is not optional
LOGO

1

1: display LOGO in no signal or turn on
0: no LOGO display

ADC PRESCALE

00A

Software auto preset according the power consumption
SIF PRESCALE
000
Software auto preset according the power consumption
BACK LIGHT
13
Software auto preset according the screen
ALL COLOR

1


1: white balance of each channel auto offset based on the HDMI white
balance
0: white balance of each channel adjust the offset base separately
NO STANDY
0 0
01: turn on 00: memory function of turn on 10: standby
INIT VOLUME
0-100
Volume when turn on
INIT CHANNEL
1-200
Channel when turn on
INIT SRC
Program source
Input Source when turn on
EEPROM-MEMORAY
RECALL

> 
EEPROM Initialization (operate when EEPROM data chaos)

A. Adjustment for AFT voltage and AGC voltage of IF channel in TV
1 IF AFT adjustment
Enter factory menu, set IF VCO to 1, or press ”INPUT”, “2”, “5”, “8”, “1” to enter VCO adjustment mode, disconnect J2, adjust LZ100 to value 2.5V of TP5(B face), then wed J2.
B. IF AGC adjustment
Input 184.25MHz RF signal of 60DBuv from RF terminal for china, and 175.25MHz for America, adjust RZ133 to value 2V of TP1(B face) and there should be no obvious snowy picture. Increase the signal to 90DBVuv and it should be display normally and no obvious noise.
C. White balance adjustment
1 HDMI white balance correct
a. Input VG-848 signal to HDMI: TIMING854(800*600/60Hz) 8 level gray scale of PAT920, adjust the balance with CA210.
b. Enter COLOR TEMP sub menu and select color temperature of standard(9300K)
c. Fixed B OFF, adjust R OFF, G OFF to let the color coordinate of the second level be
283,297(CPT panel) and the brightness be 3nit ~10nit or so; Fixed B GAIN, adjust R GAIN, G GAIN to let the color coordinate of the seventh level be 283,297(CPT panel). Repeat adjust R OFF, G OFF, R GAIN and G GAIN, until the two color coordinate of the level gray scale be 283,297(CPT panel).
2. VGA/YPbPr white balance check and correct
a. Connect VG-848 signal of VGA to VGA terminal and input TIMING854(800*600/60HZ) (PATTERN:CROSS), and auto adjust to full screen then input PAT948 black/white signal, enter submenu of ADC ADJ, select AUTOTUNE and wait for OK display. Input PAT920(8 gray levels), check if the white balance is normal, if not, set ALL COLOR to 0 and fine adjust.
b. connect VG-848 signal of YPbPr to YPbPr terminal and input TIMING972(1080I/60Hz) PAT908 color bar(include back/white bar), enter submenu of ADC ADJ, select AUTOTUNE and wait for OK displaly. Input PAT920(8 gray levels), check if the white balance is normal, if not, set ALL COLOR to 0 and fine adjust according the method of 3.3.2
c. Input AV signal(PM5518, 8 gray levels PAL for China and NTSC for America) to VIDEO 1 terminal, check if the white balance is normal, if not, set ALL COLOR to 0 and fine adjust  Note: it can’t set back to 1 once ALL COLOR changes to 0.
D.Performance check
1. TV function
Enter searching menu
auto search, connect RF-TV terminal with central signal source and check if the picture is normal, if there are channels be skipped. Check CCD and V-CHIP function for America.
2. AV/S, YPbPr terminals
Input AV/S, YPbPr/YCbCr HD signal, check if it is normal.
3. VGA terminal
Insert VGA terminal, input VGA format signal of 640X480@60 Hz and check if the display is normal.
4. HDMI terminal
Insert HDMI terminal, input 640X480@60Hz signal, check if the display is normal. Check HDCP function.
5 check sound channel
Check the speaker and earphone of each channel.
6. RS232 terminal
Put the earphone line into COM terminal, check the long-distance control function with special test software.
7. other function check
Check the turn on/turn off timer, asleep timer, picture/sound mode, OSD, freeze/mute, stereo/SAP(for America), ect.
POWER SUPPLY CIRCUIT 
CLICK ON THE IMAGE TO ZOOM IN