Sony KF-60DX100K Service Manual ▷ View online
– 6 –
KF-60DX100K
RM-Y910K
4. Self-Diagnosis screen displays
• In cases of malfunctions where it is not possible to determine the symptom such as when the power goes off occasionally or when the
screen disappears occasionally, there is a screen display on whether the malfunction occurred or not in the past (and whether the
detection circuit operated or not) in order to allow confirmation.
<Screen Display Method>
• Quickly press the remote command button in the following order from the standby state.
5. Self-Diagnosis Screen Display
• The results display is not automatically cleared. In case of repairs and after repairs, check the self-diagnosis screen and be sure to
return the results display to “ 0 ”.
• If the results display is not returned to “ 0 ” it will not be possible to judge a new malfunction after completing repairs.
<Method of Clearing Results Display>
<Method of Ending Self-Diagnosis Screen>
• When ending the self-diagnosis screen completely, turn the power switch OFF on the remote commander or the main unit.
1. Power off (Set to the standby mode)
2. DISPLAY b Channel 5 b VOL + b POWER (Service Mode)
3. Channel 8 b ENTER (Test reset = Factory preset condition)
Self-Diagnosis screen display
J
Be aware that this differs from the method of
entering the service mode (volume + ).
DISPLAY b Channel 5 b VOL – b POWER
Self Diagnosis
6:Low B
0
9:AUDIO
1
101:WDT
0
Numeral “1” means a fault was
detected one time or more.
detected one time or more.
Numeral “0” means that no fault
was detected.
was detected.
MAIN
Move the ioystick
B
/
b
SELF DIAGNOSIS
1:LAMP
1
3:LAMP COVER
0
4:FAN
0
5:LAMP DRIVER
0
201:WDT-ENGINE
0
LCD ENGINE
– 7 –
KF-60DX100K
RM-Y910K
6. Self-Diagnosis function operation
3 : Lamp Cover
When lamp cover SW is opened then pin
4
of CN1908 on the A board is high, LCD Engine
µ
-com (IC9502)
detects it and make turn off the lamp.
4 : FAN Stop
When FAN1 or FAN2 is stopped then pin
8
or
q;
of CN1908 on the A board is high, LCD Engine
µ
-com
(IC9502) detects it and make turn off the lamp.
5 : Lamp Driver
When lamp is not turned on then pin
wl
of LCD Engine
µ
-com (IC9502) is high, checks pin
wk
of LCD Engine
µ
-com . If pin
wk
is low, it is judged no High Voltage.
6 : Low B
Detect +5 V line failure.
9 : Audio
When DC is appeared by audio amp failure at speaker line.
Then it is detected by MAIN
µ
-com (IC9004) and it turns off the main power.
LAMP : Lamp error
When lamp is not turned on then pin
wl
of LCD Engine
µ
-com (IC9502) is high, checks pin
wk
of LCD Engine
µ
-com. If pin
wk
is high, it is judged lamp is burned out.
Self-Diagnosis block diagram
24 AUDIO PROT
43 LOW B ERR
D1902
CN1908
D1901
M board
A board
T board
IC9004
MAIN CPU
+5V DETECT
LAMP
DRIVER
LAMP
HV DETECT
FAN1
FAN2
IC9502
LCD ENGINE
+5V
LAMP DRV
HV DET
LAMP PROT
28
FAN PROT 24
LAMP PROT 29
3. Lamp Cover
LAMP COV
HV DET
LAMP PRT
FAN1 PR
FAN2 PR
4. FAN Stop
9. Audio
6. Low B
LAMP COV 27
Q9505,9507-9509
S8001
DC DETECT
Q1211, 1213,1215
IC9005
AUDIO AMP
IC1203, 1204
4
12
3
8
10
– 8 –
KF-60DX100K
K
RM-Y910K
SECTION 2
DISASSEMBLY
2-1. REAR COVER ASSEMBLY
2-3. POWER BLOCK REMOVAL
2-2. OU BRACKET REMOVAL
2-4. SERVICE POSITION
2
Rear cover
assembly
assembly
1
Six screws
(+BVTP 4 x 16)
(+BVTP 4 x 16)
1
Eight screws
(+BVTP 4 x 16)
(+BVTP 4 x 16)
1
Six screws
(+BVTP 4 x 16)
(+BVTP 4 x 16)
2
OU bracket
3
Three screws
(+BVTP 3 x 12)
(+BVTP 3 x 12)
7
Power block
6
Ballast
bracket
bracket
4
Ballast cover
5
Two screws
(+BVTP 3 x 12)
(+BVTP 3 x 12)
1
2
Two screws
(+BVWHTP 3 x 12)
(+BVWHTP 3 x 12)
2
Cabinet stay (L)
1
Screw
(+BVTP 4 x 16)
(+BVTP 4 x 16)
3
– 9 –
KF-60DX100K
K
RM-Y910K
2-6. TERMINAL BOARD ASSEMBLY REMOVAL
2-5. OPTICAL UNIT BLOCK ASSEMBLY REMOVAL
1
Connector
1
Connector
3
Optical unit block
assembly
assembly
2
Loosen two screws,
which can not taken
apart from the assy.
which can not taken
apart from the assy.
Note: Be careful about the no dust or dirt are on the surface
contacts the optical unit block assembly.
• Clean the periphery of the set.
• Clean the periphery of the optical unit block assembly in
• Clean the periphery of the optical unit block assembly in
the set (the inside of the control panel, the surface contacts
between the optical unit block assembly and the bottom
cabinet and periphery).
between the optical unit block assembly and the bottom
cabinet and periphery).
5
RF antenna switch
4
Two washers
3
Seven screws
(+BVTP 3 x 12)
(+BVTP 3 x 12)
1
Two screws
(+BVTP 4 x 16)
(+BVTP 4 x 16)
7
Terminal board
assembly
assembly
2
Bracket M
6
Claw
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