SONY KF-WS60A1
SERVICE MODE AND POWER SUPPLY SCHEMATIC
Self-diagnosis screen display
For the failure which is hard to reproduce, or accompany occasional power off and/or picture mute, the Self-diagnosis screen
display is useful to specify the cause.
<To show the screen display>
Press the keys of the remote commander in rapid sequence as follows, when the set is in standby mode.
For the failure which is hard to reproduce, or accompany occasional power off and/or picture mute, the Self-diagnosis screen
display is useful to specify the cause.
<To show the screen display>
Press the keys of the remote commander in rapid sequence as follows, when the set is in standby mode.
DISPLAY > Channel 5 > Vol - > POWER
The failure record is not automatically cleared.
So after repair, be sure to check the record and set it to “0” manually.
So after repair, be sure to check the record and set it to “0” manually.
< To clear the failure record
>
If the screen display is already on, the following step 1 and 2 can be skipped.
1. Power off (Set to the standby mode)
If the screen display is already on, the following step 1 and 2 can be skipped.
1. Power off (Set to the standby mode)
2. DISPLAY > Channel 5 > Vol - > POWER
3. Channel 8 > ENTER
< To clear the Self-diagnosis
screen display >
The self-diagnosis screen display is cleared by turning off the set with a remote commander or the power switch.
The self-diagnosis screen display is cleared by turning off the set with a remote commander or the power switch.
Self-Diagnosis function operation
3 BLINKS : Lamp cover The rib at the back of the lamp
cover closes the SW on T board to ground pin 3 of CN8001.It’s monitored by the
DE-micro (Pin 94 of IC6902) and turns off the lamp when it’s open.
4 BLINKS : Fan Fan rotation is detected by “FAN-PROT”and the DE-micro (Pin 92 of IC6902) turns off the lamp when it’s “high”.
4 BLINKS: Temp When the temperature sensor on the H3 board (WE) or H4 board (WF/XS) detects high temperature or IIC-E line connector (CN6022:G2 board, CN44: H3/H4 board)is not sested securely, DE-micro turns off the lamp.
5 BLINKS : Lamp driver When the “LAMP-PROT” (pin 95) is low, lamp is not turned on. If the “LAMP-HV-DET” (pin 96) is low at the same time, it is classified as no high voltage of the lamp driver.
6 BLINKS: Low B error When no “DD 6V” is detected, pin 129 of TV-micro is low and it turns off the main power.
8 BLINKS: D-OVP When overvoltage of “+3.3V” or “+2.5V” is detected, pin 126 of TV-micro is low and it turns off the main power.
9 BLINKS: Audio When DC voltage is detected at the speaker or woofer outputs, pin 128 of TV-micro is low and it turns off the main power.
LAMP : Lamp When the “LAMP-PROT” (pin 95) is low, lamp is not turned on. If the “LAMP-HV-DET” (pin 96) is high at the same time, it is classified as no lamp or dead lamp.
4 BLINKS : Fan Fan rotation is detected by “FAN-PROT”and the DE-micro (Pin 92 of IC6902) turns off the lamp when it’s “high”.
4 BLINKS: Temp When the temperature sensor on the H3 board (WE) or H4 board (WF/XS) detects high temperature or IIC-E line connector (CN6022:G2 board, CN44: H3/H4 board)is not sested securely, DE-micro turns off the lamp.
5 BLINKS : Lamp driver When the “LAMP-PROT” (pin 95) is low, lamp is not turned on. If the “LAMP-HV-DET” (pin 96) is low at the same time, it is classified as no high voltage of the lamp driver.
6 BLINKS: Low B error When no “DD 6V” is detected, pin 129 of TV-micro is low and it turns off the main power.
8 BLINKS: D-OVP When overvoltage of “+3.3V” or “+2.5V” is detected, pin 126 of TV-micro is low and it turns off the main power.
9 BLINKS: Audio When DC voltage is detected at the speaker or woofer outputs, pin 128 of TV-micro is low and it turns off the main power.
LAMP : Lamp When the “LAMP-PROT” (pin 95) is low, lamp is not turned on. If the “LAMP-HV-DET” (pin 96) is high at the same time, it is classified as no lamp or dead lamp.
Method of Setting the Service
Adjustment Mode
1. Standby mode. (Power off)
2. Display > Channel 5 > volume (+) > power on on the remote commander.
(Press each button within a second.)
Service Mode Adjustment
1. The SCREEN displays the item being adjusted.
2. Press “1” or “4” on the remote commander to select the adjustment item.
3. Press “3” or “6” on the remote commander to change the data.
4. Press “2” or “5” on the remote commander to select the category. Every time you press “2” (Category up)
2. Display > Channel 5 > volume (+) > power on on the remote commander.
(Press each button within a second.)
Service Mode Adjustment
1. The SCREEN displays the item being adjusted.
2. Press “1” or “4” on the remote commander to select the adjustment item.
3. Press “3” or “6” on the remote commander to change the data.
4. Press “2” or “5” on the remote commander to select the category. Every time you press “2” (Category up)
5. If you want to recover the latest values
press “-” then “[ENTER]” to read the memory.
6. Press “[MUTING]” then “[ENTER]” to write into memory.
7. Turn power off.
6. Press “[MUTING]” then “[ENTER]” to write into memory.
7. Turn power off.
Note: Press “8” then “[ENTER]” on the remote
commander to set the shipping conditions or turn set off and on to exit.
Memory Write Confirmation Method
1. After adjustment, turn power off with the remote commander.
2. Turn power on and set to service mode.
3. Call the adjusted items again and confirm they were adjusted.
1. After adjustment, turn power off with the remote commander.
2. Turn power on and set to service mode.
3. Call the adjusted items again and confirm they were adjusted.
To read Lamp and Panel time
The lamp and panel time of the set are displayed as follows .
<Enter the service mode>
1. Press the keys of the remote commander in rapid sequence as follows , when the set is in standby mode.
DISPLAY > Channel 5 > Vol + > POWER
2. Press the “JUMP ” key [3 times].
You’ll get into DE-micro service menu .
3. Press “2 ” key [9 times] .
The lamp and panel time of the set are displayed as follows .
<Enter the service mode>
1. Press the keys of the remote commander in rapid sequence as follows , when the set is in standby mode.
DISPLAY > Channel 5 > Vol + > POWER
2. Press the “JUMP ” key [3 times].
You’ll get into DE-micro service menu .
3. Press “2 ” key [9 times] .
“Total lamp time is 14 hours” and
“Total lamp ON/OFF cycle is 71 times”
To reset lamp time,
press “3 ” , “MUTE ” and “ENTER ” keys in sequence.
WRI-EXE(Red Character) is momentarily displayed and LampTM will be reset to “0 ”.
4. Press “ 1 ” key [7 times].
“Total lamp ON/OFF cycle is 71 times”
To reset lamp time,
press “3 ” , “MUTE ” and “ENTER ” keys in sequence.
WRI-EXE(Red Character) is momentarily displayed and LampTM will be reset to “0 ”.
4. Press “ 1 ” key [7 times].
You can’t reset the Panel time with the Service
menu .
To get out of the Service menu>
The Service menu is cleared by turning off the set with a remote commander or the power switch .
The Service menu is cleared by turning off the set with a remote commander or the power switch .
Test Reset
The user settings can be reset to the factory default condition as follows.
1. Press “TEST “ and “RESET “ key in sequence when the set is ON . The LAMP,TIMER and POWER/STANDBY LED light and the picture is muted.
After about 5 seconds the LAMP and TIMER LED go off, and the color of POWER/STANDBY LED changes from amber to green.
After another 10 seconds the reset is completed
The user settings can be reset to the factory default condition as follows.
1. Press “TEST “ and “RESET “ key in sequence when the set is ON . The LAMP,TIMER and POWER/STANDBY LED light and the picture is muted.
After about 5 seconds the LAMP and TIMER LED go off, and the color of POWER/STANDBY LED changes from amber to green.
After another 10 seconds the reset is completed
