DOWNLOAD Sony KV-PG14N70 (serv.man2) Service Manual ↓ Size: 3.81 MB | Pages: 43 in PDF or view online for FREE

Model
KV-PG14N70 (serv.man2)
Pages
43
Size
3.81 MB
Type
PDF
Document
Service Manual
Brand
Device
TV
File
kv-pg14n70-sm2.pdf
Date

Sony KV-PG14N70 (serv.man2) Service Manual ▷ View online

– 9 –
KV-PG14N70
RM-915
Presetting channels
You can automatically preset cable TV, VHF or UHF broadcast channels, or
manually preset the channels to receive new channels or channels with a weak
signal.
Presetting channels automatically
 1
Press ! on the TV to turn on the TV.
 2
Press CABLE to select “CABLE: ON”.
3
Press AUTO PROGRAM on the remote or press
SELECT and CHANNEL + on the TV at the same
time for one to two seconds to preset the
channels automatically.
Presetting channels manually
1
Press the number buttons to select the desired
channel number, then press ENT.
 2
Press ADD/ERASE.
“+” appears beside the channel number,
indicating that presetting is complete.
Notes
• If you select “CABLE: ON”, you will be able to receive 125 cable TV channels. If there are no
cable TV channels, you will receive VHF broadcast channels.
• If you select “CABLE: OFF ”, you will be able to receive 68 VHF or UHF broadcast channels
only.
Number
buttons
CH +/–
TV
1
2
3
4
6
7
8
9
0
5
ENT
FAVORITE
WAKE UP
SLEEP
JUMP
CABLE
DISPLAY
MUTING
POWER
MTS
VOL
CH
VIDEO
SOUND
MODE
AUTO
PROGRAM
ADD/
ERASE
TV
AUTO
PROGRAM
CABLE
ENT
ADD/ERASE
Presetting channels (continued)
To change the color system setting
If the color is abnormal when receiving programs through the video input terminal.
(1) Press SELECT until “COLOR SYS” appears on the screen.
(2) Press + or – to select the appropriate color system until the color is optimal.
AUTO  
  PAL  
  NTSC3.58  
  NTSC4.43
To skip program numbers
(1) Press CH +/– until the unused or unwanted channel number appears on the
screen.
(2) Press ADD/ERASE to skip the unused or unwanted channel number.
“–” appears beside the channel number, indicating that disabling is complete.
Note
• To restore the skipped channel number again, preset the channel automatically or manually.
K
Customizing the picture
You can customize the picture by selecting the picture mode or by adjusting its
settings.
Selecting the picture mode
  Press PIC MODE to select the desired picture mode.
Select
To
“DYNAMIC”
view high contrast pictures.
“STANDARD”
view normal contrast pictures.
“SOFT”
view mild pictures.
Adjusting the picture setting
  
1
Press SELECT until the desired setting appears.
Each time you press SELECT, the setting item will
change as follows:
 2
Press + or – to adjust the item.
 3
To adjust other items, repeat steps 1 to 2.
Notes
• “HUE” can be adjusted for the NTSC color system only.
• Reducing “SHARP” can also reduce picture noise.
PIC MODE
SELECT
+ or –
PICTURE
COLOR
BRIGHT
HUE
SHARP
TV
1
2
3
4
6
7
8
9
0
5
ENT
FAVORITE
WAKE UP
SLEEP
JUMP
CABLE
DISPLAY
MUTING
POWER
MTS
VOL
CH
VIDEO
SOUND
MODE
AUTO
PROGRAM
ADD/
ERASE
TV
 10 
KV
-PG14N70
RM-915
2-6. REPLACEMENT OF PARTS
For replacements of light guide,unscrew them, exchange with
new parts and fix them with screws respectively.
2-6-2. Replacement of Power Button
2-6-1. Replacement of Light Guide
One screw
(+BVTP 3 
× 12)
1
Push to direction of arrow 
and remove
2-5. TERMINAL  BRACKET REMOVAL
SECTION 2
DISASSEMBLY
2-1. REAR COVER REMOVAL
2-2. SPEAKER REMOVAL
2-3. CHASSIS ASSY REMOVAL
1 Eight screws
(+BVTP 4 
× 16)
1 Rear Cover
1 Four screws 
(BVTP 3 
× 12)     
CRT SUPPORT BLOCK
Speaker
Push claw
2-4. SERVICE POSITION
Caution:
 Do not take out CRT support block while TV set in
standing position.
Note:
 Undress necessary wires that creates tension while
placing the chassis into Service Position.
1 One screw
(+BVTP 4 
× 16)
2 Terminal Bracket
 11 
KV
-PG14N70
RM-915
2-7. 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.
!™
Demagnetic coil
2 Four screws 
(BVTP 3 
× 12)
4
Two screws
(Tapping 5+
Crown Washer)
3 Speaker
(5 
× 9cm)
7Tension
Beznet
hook
spring
Chassis assy
Deflection
yoke
C board
Coating earth assy
!∞
Picture tube
1 Cushion
5 Two screws
(Tapping 5 +
Crown Washer) 
!¡ Holder DGC
Cushion DGC
  Cushion DGC
9
 
8
A Board
Slim Beznet
CRT Support Block
6
Anode 
cap
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
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.
• HOW TO HANDLE AN ANODE-CAP
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.
Using a thumb pull up the rubber cap firmly in the direction indicated by the arrow b.
Turn up one side of the rubber cap in the direction indicated by the arrow a.
a
a
b
b
Anode button
c
– 12 –
KV-PG14N70
RM-915
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. Set the pattern generator raster signal to a green raster.
3. 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.)
4. Move the deflection yoke forward and adjust so that the
entire screen is green. (See Figure 3-1.)
5. Switch the raster signal to blue, then to red and verify the
condition.
6. When the position of the deflection yoke has been decided,
fasten the deflection yoke with the screws and DY spacers.
7. If the beam does not land correctly in all the corners, use a
magnet to adjust it.
(See Figure 3-4.)
}
Fig. 3-1
Fig. 3-4
Fig. 3-3
Fig. 3-2
Purity control
Red
Blue
Green
Purity control
corrects this area.
Disk magnets or rotatable
disk magnets correct these
areas (a-d).
Deflection yoke positioning
corrects these areas.
a
b
c
d
b
c
d
a
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