Sony KV-DZ29M50 Service Manual ▷ View online
– 4 –
KV-DZ29M50/M60/M80/M81
RM-GA002
2 OCP:
0
3 OVP:
0
4 VSTOP:
0
5 AKB:
0
8 SUP:
0
9 SUPBT:
0
01 WDT:
N/A
Numeral "0" means that no fault has been detected.
Numeral "1" means a fault has been detected.
SELF DIAGNOSTIC
Numeral "2" means two faults have been detected.
4. SELF DIAGNOSTIC SCREEN DISPLAY
5. HANDLING SELF DIAGNOSTIC SCREEN DISPLAY
6. SELF-DIAGNOSTIC CIRCUIT
[+B overcurrent OCP ]
Occurs when an overcurrent on the +B(135) line is detected by Q6804.
If Q6804 go to ON, the voltage to the pin57 of IC4301 go to "HIGH".
The unit will automatically turn off.
If Q6804 go to ON, the voltage to the pin57 of IC4301 go to "HIGH".
The unit will automatically turn off.
[High voltage protector of Horizontal Deflection]
Occurs when an overvoltage of horizontal pulse is detected by D6809.
If the voltage of anode D6809 and D6843 goes to High, the voltage to pin57
of IC4301 go to "HIGH".
The unit will automatically turn off.
If the voltage of anode D6809 and D6843 goes to High, the voltage to pin57
of IC4301 go to "HIGH".
The unit will automatically turn off.
[+B overvoltage OVP ]
Occurs when an overvoltage on the +B(135) line is detected by D6635 and
Q6606. If Q6606 go to ON, the voltage to pin6 of IC001 go to "HIGH". The
unit will automatically turn off.
Q6606. If Q6606 go to ON, the voltage to pin6 of IC001 go to "HIGH". The
unit will automatically turn off.
[Vertical deflection failure]
Occurs when an absence of the vertical deflection pulse is detected by
Q6808 and R6910. Shut down the power supply.
Q6808 and R6910. Shut down the power supply.
[White balance failure]
If the RGB levels do not balance or become low level within 5 seconds. This
error will be detected by IC4301.
TV will stay on, but there will be no picture.
error will be detected by IC4301.
TV will stay on, but there will be no picture.
[5V/9V failure]
Occurs when 5V/9V is not supplied to Micon (IC001).
No raster will be detected or no picture.
No raster will be detected or no picture.
5
8
No.
Description
Method
1.
Display self diagnostic screen
[Display] t [Channel ] t [Volume ] t [Power / TV]
Note: The above must be performed while TV is on standby mode.
2.
Stop standby flash
i) Turn off power switch on main.
ii) Unplug power cord from the outlet.
ii) Unplug power cord from the outlet.
3.
Clear fault result
In self diagnostic screen, press
[Channel ] t
-
Note: Diagnostic results display on screen is not automatically cleared. Therefore,
clear result after completion of repair.
clear result after completion of repair.
4.
Quit self diagnostic screen
Turn off power switch of remote commander or main unit.
IC4301
RGB JUNGLE
CXA2170AQ
OVP
FROM
CRT (IK)
[V]
Q6843, R6910
IC001
SYSTEM
SDA
SDA
9V
5V
IC002
MEMORY
IK_IN
H PROT
RED LED
5
24
57
7
6
V PROT
56
[OCP]
Q6804, D6821
[H]
D6843, D6809
84
14,47,
82
– 5 –
KV-DZ29M50/M60/M80/M81
RM-GA002
SECTION 1
DISASSEMBLY
1-2.
SPEAKER REMOVAL
1-3.
CHASSIS ASSY REMOVAL
1-4.
SERVICE POSITION
1-5.
D AND D3 BOARDS REMOVAL
1-1.
REAR COVER REMOVAL
1-6.
F1 BOARD REMOVAL
1
Eleven screws
(+BVTP 4
×
16)
2
One screw
(+BVTP 3
×
12)
3
Rear cover
1
Two screws
(Washer Head)
(+P4x16)
(+P4x16)
1
D Board
2
D3 Board
2
F1 Board
1
Two screws
(+BVTP 3
×
12)
2
1
One stopper
One stopper
1
i
&
2
Make sure stopper is release & unscrew one screw
before taking out boards.
• Make sure all connector/bridge are fully inserted during
chassis installation.
• Make sure all connector/bridge are fully inserted during
chassis installation.
3
One screw
(+BVTP 3
×
12)
3
2
1
1
Do not bend A1 board to avoid Bridge connector peel off.
2
Locate paper between A and D board to avoid heat sink touching.
3
Locate paper between A and C board to avoid heat sink touching.
• No need to connect earthing connector (F1 Board) during servicing.
– 6 –
KV-DZ29M50/M60/M80/M81
RM-GA002
1-9.
PICTURE TUBE REMOVAL
Note:
• Please make sure the TV set is not in standing position before removing necessary CRT support located on bottom right
and left.
1) Remove the Rear Cover.
2) Unplug all interconnecting leads from the Deflection Yoke, Neck Assy, Degaussing Coils and CRT grounding strap. Remove
2) Unplug all interconnecting leads from the Deflection Yoke, Neck Assy, Degaussing Coils and CRT grounding strap. Remove
Chassis Assy.
3) Place the TV set with the CRT face down on a cushion (jig).
1-8.
A1 AND B1 BOARDS REMOVAL
1-7.
H1 BOARD REMOVAL
1
Two hooks
2
H1 Board
1
Two hooks
3
Two clips
2
A1 Board
4
B1 Board
4
Anode Cap Removal
0
Degaussing Coil
6
Loosen the Neck Assembly
fixing screw and remove
Neck Assy & VM coil
7
Loosen the Deflection Yoke
fixing screw and remove
5
C Board Removal
qd
Spring Tension
Removal (x2)
9
Holder, DGC
Removal (x2)
qa
Earth Coating Assy
qf
Srew Tapping 7+ Crown Washer (x4)
8
Band, DGC Removal
qs
Supports, CRT Removal (x2)
– 7 –
KV-DZ29M50/M60/M80/M81
RM-GA002
• REMOVAL OF ANODE-CAP
Note:
• After removing the anode, short circuit the anode of the picture tube and the anode cap to the metal chassis, CRT shield or
carbon paint on the CRT.
•
REMOVING PROCEDURES
1
Turn up one side of the rubber cap in the direction
indicated by the arrow
indicated by the arrow
a
.
2
Using a thumb pull up the rubber cap firmly in the direction
indicated by the arrow
indicated by the arrow
b
.
3
When one side of the rubber cap is separated from the
anode button, the anode-cap can be removed by turning
up the rubber cap and pulling it up in the direction of the
arrow
anode button, the anode-cap can be removed by turning
up the rubber cap and pulling it up in the direction of the
arrow
c
.
•
HOW TO HANDLE AN ANODE-CAP
1
Do not damage the surface of anode-caps with sharp
shaped objects.
shaped objects.
2
Do not press the rubber too hard so as not to damage
the inside of anode-cap.
A metal fitting called the shatter-hook terminal is built
into the rubber.
the inside of anode-cap.
A metal fitting called the shatter-hook terminal is built
into the rubber.
3
Do not turn the foot of rubber over too hard.
The shatter-hook terminal will stick out or damage the
rubber.
The shatter-hook terminal will stick out or damage the
rubber.
a
a
b
b
c
Anode Button
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