DOWNLOAD Sony KV-AR34M86 Service Manual ↓ Size: 9.33 MB | Pages: 89 in PDF or view online for FREE

Model
KV-AR34M86
Pages
89
Size
9.33 MB
Type
PDF
Document
Service Manual
Brand
Device
TV
File
kv-ar34m86.pdf
Date

Sony KV-AR34M86 Service Manual ▷ View online

– 9 –
KV-AR34M86
RM-993
5 Four connectors
7 Two Hooks
2 One Hooks
6 A Board
6 B8 Board
1 One screw (Washer Head) 
(+BVTP 3 x 12)
3 Three screws 
     (Washer head) 
     (+BVTP 3 x 12)
4 One screw 
(Washer head) 
     (+BVTP 3 x 12)  
1-11. H1 AND H2 BOARDS REMOVAL
6 H2 Board
5 Cover, H
4 Two Hooks
2 Five hooks
3 H1 Board
1 Two screws (Washer head)
     (+BVTP 3 x12)
1-12. A AND B8 BOARDS REMOVAL
1-13. PICTURE TUBE  REMOVAL
qs
 Earth Coating Assy
!∞ Block Center
4 Anode Cap Removal
!£ Band, DGC Removal
!§ Degaussing Coil
5 C6 Board Removal
9 Chassis Assy Removal
7 VM1 Board Removal
0 Support, CRT(2) Removal
qa
 Spring Tension(2) Removal
!¢ Holder, DGC(2) Removal
!¶ Nut, Special, CRT (4)
6 Loosen the Neck Assembly
fixing screw and removal
8 Loosen the Deflection Yoke
fixing screw and remove
Note:
Please make sure the TV set is not in standing position before removing necessary CRT support located on bottom
right and left.
1) Place the TV set with the CRT face down on a cushion jig.
2) Removal the rear cover.
3) Unplug all interconnecting leads from the Deflection yoke, Neck assy, Degaussing Coil and CRT grounding strap.
– 10 –
KV-AR34M86
RM-993
• 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
Turn up one side of the rubber cap in the direction
indicated by the arrow 
a.
Using a thumb pull up the rubber cap firmly in the direc-
tion indicated by the arrow 
b.
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 
c.
• HOW TO HANDLE AN ANODE-CAP
Do not damage the surface of anode-caps with
sharp shaped objects.
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.
Do not turn the foot of rubber over too hard.
The shatter-hook terminal will stick out or damage
the rubber.
a
a
b
b
c
anode button
– 11 –
KV-AR34M86
RM-993
SECTION 2
ADVANCE OPERATION
2-1. "RESET" FUNCTION
1. Purpose
If a customer faces some setting problem that cannot be solved, using the "RESET" function some items will
be reset to its original setting (shipment condition)
2. How to Operate
The way to access to the "RESET" Function:-
a) By pressing "MENU" button or "SELECT" button (for non-menu models) on the Front Key Input and
hold it down for 5 seconds.
3. Subsequent of Operation
Sequential to the resetting operation (either methods being used in No. 2), TV set would shut down once and
automatically turn on again. The power-off duration is expected to be about 500msec. An OSD message,
"RESET" tentatively will be displayed for 10 sec after IK status gets stable.
As a result, some items will be reset to an initial condition (shipment condition) wheareas some other remains
at the last selection by user.
Items that remains at the last selection by user
Reset Items
Channel No., Favourite CH Setup,
PIC rotation, OSD Language, Fine tuning, TV System, Skip
*= only when in RF mode
Video input
RF
Volume
30
Picture mode
DYNAMIC
DTE
ON
Sound mode
DYNAMIC
Surround mode
OFF
Favourite CH mode
AUTO
Multi Picture (PIP)
OFF
PIP position
Bottom Right
OSD recall
OFF
Antenna sensitivity
OFF
Antenna sensitivity
HIGH*
Stereo mode
STEREO
Bilingual mode
MAIN*
High-deviation mode
AUTO
Child lock
OFF*
Wide mode
OFF
Game mode
OFF
Sleep timer
OFF
Wake-up timer
OFF
Sound muting
OFF
– 12 –
KV-AR34M86
RM-993
• The following adjustments should be made when a complete
realignment is required or a new picture tube is installed.
• These adjustments should be performed with rated power
supply voltage unless otherwise noted.
Controls and switches should be set as follows unless otherwise noted:
PICTURE control ...........................................................  normal
BRIGHTNESS control ...................................................  normal
Perform the adjustments in the following order :
1. Beam Landing
2. Convergence
3. Focus
4. White Balance
Note :  Test Equipment Required.
1. Pattern Generator
2. Degausser
3. Oscilloscope
SECTION 3
SET-UP ADJUSTMENTS
normal
Preparation :
• In order to reduce the influence of geomagnetism on the set's
picture tube, face it east or west.
• Switch on the set's power and degauss with the degausser.
3-1. BEAM LANDING
1. Input a white signal with the pattern generator.
Contrast
Brightness
2. Position neck assy as shown in Fig3-2.
3. Set the pattern generator raster signal to a green raster.
4. Move the deflection yoke to the rear and adjust with the
purity control so that the green is at the center and the blue
and the red take up equally sized areas on each side.
(See Figures 3-1 through 3-4.)
5. Move the deflection yoke forward and adjust so that the
entire screen is green. (See Figure 3-2.)
6. Switch the raster signal to blue, then to red and verify the
condition.
7. When the position of the deflection yoke has been decided,
fasten the deflection yoke with the screws and DY spacers.
8. If the beam does not land correctly in all the corners, use a
magnet to adjust it.
(See Figure 3-5.)
}
Fig. 3-1
Fig. 3-2
Fig. 3-5
Fig. 3-4
Fig. 3-3
G2
G1
G3
a
b
b
c
c
d
d
a
Purity control
corrects this area.
Disk magnets or rotatable
disk magnets correct these
areas (a-d).
Deflection yoke positioning
corrects these areas.
Neck Assy
Behind the G3 edge
Red
Blue
Green
Purity control
Page of 89
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