KDL-65W850A, KDL-65W855A - Sony TV Service Manual (repair manual). Page 123

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RB1G
CHASSIS
W850/855A
SECTION 4
SERVICE ADJUSTMENTS
4-1. Accessing Service Mode
1) Go to TV standby condition  by remote commander.
2) Press “i+ (info)”, “5”, “Volume +” then “TV power” on remote.
3)
You can see Service Mode on display.
1.  Change Data of “Chassis” or “VPC” service mode
a.
Press “2 / 5” on remote to select (up / down) category.
b
Press “1 / 4” on remote to select (up / down) Item
4-3.  Change Data by Service Mode 1
DIGITAL                  SERVICE
001 OP
000 VERS            ---
* The above operation should be finished within 15 seconds after  the set go to STBY 
mode
TV Power
4
b.
Press  1 / 4  on remote to select (up / down) Item.
c.
Press “3 / 6” on remote to change (up / down) data.
Press 2: increment
Press 5: decrement
<MAIN>            <EXT>
DM1.301W00AA      WF:2.0.0.99
WF1.003W00AA      WF:--------
DF1.001W00AA      FD:0.068
YM1.010W00AA      BT:
M4 922C
1 2 14 891
(i+)
(5)
1
2
CHASSIS
SERVICE
000
WYVERN
000
S2_NOISE_TH     32
Press 1: increment
Press 3: increment
a
b
c
M4.922C
1.2.14.891
(DM1.301W00AA)
DD1.016W00AA
PK0.312W00AA
AM0.510WW
MID:04835511
PID 04020000
Remote Commander
(5)
2
3
Press 1: increment
Press 4: decrement
Press 3: increment
Press 6: decrement
CHASSIS Service menu
PID:04020000
PNL:LTY320AB01
DQ3Y550LN0101
Remote Commander
Screen Sample
4-2. Transition of Each Micro’s Service Mode
1
Fi t f ll
h
t
S
i
M d
Save Changing Data by Service Mode 1
2.
Write data for “Chassis” or “VPC” service mode.
a.
Press “Mute” on remote. 
It shows green “SERVICE” changes to  green 
OPTIONS
1.
First of all, when you enter Service Mode,  you can 
see “Digital” service mode.
2.
Whenever you press “OPTIONS” on remote, service 
mode is changed according to the flow below:
“WRITE”.
b.
Press “0” on remote. Green “WRITE” changes to 
red “WRITE”. It indicate writing is processing.
c.
After a while, red “WRITE” changes to green 
“SERVICE”. Writing process is done at this point. 
3
TV reboot is necessary for applying data change
OPTIONS
p.5-6
“Chassis” & “VPC”
Digital” -> “Chassis” ->  “VPC”
CHASSIS
WRITE
000
WYVERN
000
S2_NOISE_TH     32
a
b
3.
TV reboot is necessary for applying data change.
123
p.7-9
“Digital” service mode
Remote Commander
CHASSIS Service menu
Remote Commander
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