DOWNLOAD Sony KV-PG14M40 Service Manual ↓ Size: 3.65 MB | Pages: 52 in PDF or view online for FREE

Model
KV-PG14M40
Pages
52
Size
3.65 MB
Type
PDF
Document
Service Manual
Brand
Device
TV
File
kv-pg14m40.pdf
Date

Sony KV-PG14M40 Service Manual ▷ View online

– 5 –
KV-PG14M40/PG14M72/L/N
KV-PG14P42/G/L/N/PG14P70
RM-952
2. DISPLAY OF STANDBY/TIMER LIGHT FLASH COUNT
3. STOPPING THE STANDBY/TIMER FLASH
Turn off the power switch on the TV main unit or unplug the power cord from the outlet to stop the STANDBY/TIMER
lamp from flashing.
4. SELF-DIAGNOSTIC SCREEN DISPLAY
For errors with symptoms such as “power sometimes shuts off” or “screen sometimes goes out” that cannot be con-
firmed, it is possible to bring up past occurances of failure for confirmation on the screen:
[To Bring Up Screen Test]
In standby mode, press buttons on the remote commander sequentially in rapid succession as shown below:
[Screen display] / channel [5] / Sound volume [-] / Power ON
˘
                  Note that this differs from entering the service mode (mode volume [+]).
Self-Diagnosis screen display
STANDBY/SLEEP lamp
Lamp ON 0.3 sec.
Lamp OFF 3 sec.
Lamp OFF 0.3 sec.
2 times
4 times
Diagnostic Item
Flash Count*
+B overcurrent/overvoltage
2 times
Vertical deflection stopped
4 times
* One flash count is not used for self-diagnostic.
002 : 000
004 : 000
Numeral "0" means that no fault has been detected.
101 : 000
SELF DIAGNOSTIC
– 6 –
KV-PG14M40/PG14M72/L/N
KV-PG14P42/G/L/N/PG14P70
RM-952
5. HANDLING OF SELF-DIAGNOSTIC SCREEN DISPLAY
Since the diagnostic results displayed on the screen are not automatically cleared, always check the self-diagnostic
screen during repairs. When you have completed the repairs, clear the result display to “0”.
Unless the result display is cleared to “0”, the self-diagnostic function will not be able to detect subsequent faults after
completion of the repairs.
[Clearing the result display]
To clear the result display to “0”, press buttons on the remote commander sequentially as shown below when the
diagnostic screen is being displayed.
Channel [8]
/ 0
[Quitting Self-diagnostic screen]
To quit the entire self-diagnostic screen, turn off the power switch on the remote commander or the main unit.
6. SELF-DIAGNOSTIC CIRCUIT
[+B overcurrent ªOCPº]
Occurs when an overcurrent on the +B(135) line is detected by Q500. If Q500 go to
ON and the voltage to pin 50 of IC301 more than 3.5V when V.SYNC is more than
seven verticals in a period, the unit will automatically turn off.
[Vertical deflection stopped]
Occurs when an absence of the vertical deflection pulse is detected by Pin 17 and
IC001 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 IC301. TV will stay on, but there will be no picture.
* (Refers to the RGB levels of the AKB detection Ref pulse that detects IK.)
IC301
Y/CHROMA JUNGLE
IC001
SYSTEM
IC003
MEMORY
MP/
PROTECT
O-LED
IO-8DAT
B-DAT
IO-SDAT
5
50
51
54
SDA
8
FROM
[+B] Q500
17
[V] 
D553
53
– 7 –
KV-PG14M40/PG14M72/L/N
KV-PG14P42/G/L/N/PG14P70
RM-952
SECTION 1
GENERAL
The operating instruction mentioned here are par
tial abstracts
fr
om the Operating Instruction Man
ual.
 The pa
ge n
u
mber
s of
the Operating Instruction Man
ual remain as in the man
ual.
A
Getting Started
Connect the antenna cable (not supplied) to 8 at the
rear of the TV.
Tip
• You can also connect your TV to other optional components.
(See E)
Plug in the power cord, then press ! on the TV to
turn it on.
Press SELECT and PROGR + on the TV at the same time
for one to two seconds to preset the channels
automatically.  (See J)
Tip
• To stop the automatic channel presetting, press SELECT
twice.
b
PROGR
SELECT
b
SELECT
Press SELECT on the remote until “LANGUAGE/
:
ENGLISH” appears on the screen, then press + or – to
change the on-screen display language.
Insert the batteries (supplied) into the remote.
Note
• Do not use old batteries nor use different types of batteries
together.
Step 1
Step 2
Step 3
Step 4
Step 5
(KV-PG14M40/PG14P70/PG14M72/
PG14M72/N/L)
A
Getting Started
Plug in the power cord, then press ! on the TV to
turn it on.
Press SELECT and PROGR + on the TV at the same time
for one to two seconds to preset the channels
automatically.  (See J)
Tip
• To stop the automatic channel presetting, press SELECT twice.
Press SELECT on the remote until “LANGUAGE/
:
ENGLISH” appears on the screen, then press + or – to
change the on-sceen display language.
Connect the antenna cable (not supplied) to 8 at the
rear of the TV.
Tip
• You can also connect your TV to other optional components.
(See E)
Step 1
Insert the batteries (supplied) into the remote.
Note
• Do not use old batteries nor use different types of batteries
together.
Step 2
Step 3
Step 4
Step 5
b
b
PROGR
SELECT
SELECT
(KV-PG14P42/PG14P42/G/L/N)
Install the TV on a stable TV stand and floor
which can support the TV set weight. Ensure that
the TV stand surface is flat and its area is larger
than the bottom area of the TV.
Do not place any objects on the TV.
Do not plug in too many appliances to the same
power socket.  Do not damage the power cord.
Pull the power cord out by the plug.  Do not pull
the power cord itself.  Even if your TV is turned
off, it is still connected to the AC power source
(mains) as long as the power cord is plugged in.
Unplug the TV before moving it or if you are not
going to use it for several days.
WARNING (continued)
B
WARNING
• Dangerously high voltages are present inside the TV.
• TV operating voltage: 220 – 240 V AC. (KV-PG14M72/PG14P42)
 110 – 240 V AC. (KV-PG14M40/PG14P70)
• Do not plug in the power cord until you have completed making all other connections;
otherwise a minimum leakage current might flow through the antenna and other terminals to
ground.
• To avoid battery leakage and damage to the remote, remove the batteries from the remote if
you are not going to use it for several days.  If any liquid that leaks from the batteries touches
you, immediately wash it away with water.
To prevent fire or shock hazard, do not expose the
TV to rain or moisture.
Do not operate the TV if any liquid or solid object
falls into it.  Have it checked immediately by
qualified personnel only.
Do not open the cabinet and the rear cover of the
TV as high voltages and other hazards are present
inside the TV.  Refer servicing and disposal of the
TV to qualified personnel.
Your TV is recommended for home use only.
Do not use the TV in any vehicle or where it may
be subject to excessive dust, heat, moisture or
vibrations.
Do not block the ventilation openings of the TV.
Do not install the TV in a confined space, such as
a bookcase or built-in cabinet.
For children’s safety, do not leave children alone
with the TV.  Do not allow children to climb onto
it.
Clean the TV with a dry and soft cloth.  Do not
use benzine, thinner, or any other chemicals to
clean the TV.  Do not scratch the picture tube.
For your own safety, do not touch any part of the
TV, the power cord and the antenna cable during
lightning storms.
– 8 –
KV-PG14M40/PG14M72/L/N
KV-PG14P42/G/L/N/PG14P70
RM-952
!
PROGR
SELECT
(MONO)
L
R
L(MONO)
R
8
6
1
3
4
7
9
2
5
0
qa
qs
D
TV front and rear panels
TV front panel
TV rear panel
Button
Function
1
!
Turn off completely or turn on the TV.
2
Remote control sensor.
3
1
Standby indicator.
3
Stereo/bilingual indicator. (KV-TG21M90 only)
3
 
Bilingual indicator. (KV-PG14M72 only)
3
Wake Up indicator.
4
PROGR +/–
Select program number.
5
2
 +/– *
Adjust volume.
6
t
Select TV or video input.
7
SELECT
Select the desired item.
8
i
Headphone terminal. (KV-TG21 only)
8
Earphone terminal. (KV-PG14 only)
9
qa
t
Video input terminal.
0
8
Antenna terminal.
qs
T
Monitor output terminal.
* You can also use the 2 +/– buttons on the TV to work as the +/– buttons on the remote.
The R (audio input) jacks are only available for KV-TG21 only.
E
Connecting optional components
Connecting to the video input terminal ( t )
TV front panel
Camcorder
Audio/Video cable
(not supplied)
Note
• Do not connect video equipment to t (video input) at the front and the rear of your TV at
the same time; otherwise the picture will not be displayed properly on the screen.
TV rear panel
Connecting to the monitor output terminal (T)
VCR
Video game
equipment
VCR
Audio system
Audio/Video cable
(not supplied)
TV rear panel
The R (audio input) jacks are only available for KV-TG21 only.
Antenna cable
(not supplied)
(MONO)
L
R
L(MONO)
R
L(MONO)
R
Audio/Video cable
(not supplied)
F
Troubleshooting
If you find any problem while viewing your TV, please check the following
guide.  If any problem persists, contact your Sony dealer.
Snowy picture,
noisy sound
Good picture,
noisy sound
No picture,no sound
Good picture, no sound
Dotted lines or stripes
Double images or
“ghosts”
No color
Abnormal color
patches
The 1 (standby)
indicator on your TV
flashes red several
times after every
three seconds.
TV cabinet creaks.
A "boom" sound is
heard when the TV is
turned on.
Symptom
Solutions
• Check the antenna cable and connection on the TV, VCR and on the wall.
• Preset the channel manually again.  (See J)
• Check the antenna setup.  Contact a Sony dealer for advice.
• Select the appropriate TV system.  (See J) (KV-PG14M40/PG14M72)
• Press A/B until the sound is optimal. (KV-PG14P42 only)
• Check the power cord, antenna and the VCR connections.
• Press ?/1 (power) or ! (main power) to turn on the TV.
• Press 2 + to increase the volume level.
• Press % to cancel the muting.
• Do not use a hair dryer or other equipment near the TV.
• Check the antenna setup.  Contact a Sony dealer for advice.
• Use the fine tuning ("FINE") function.  (See J)
• Turn off or disconnect the booster if it is in use.
• Check the antenna setup.  Contact a Sony dealer for advice.
• Select the appropriate color system.  (See J)
• Adjust the color level.  (See K)
• Check the antenna setup.  Contact a Sony dealer for advice.
• Keep external speakers or other electrical equipment away from the TV.
Press ! (main power) to turn off the TV for about 15 minutes, then turn
it on again to demagnetize the TV.
• Count the number of times the 1 (standby) indicator flashes.  Press !
(main power) to turn off your TV.  Contact your nearest Sony service
center.
• Changes in room temperature sometimes make the TV cabinet expand or
contract, making a noise.  This does not indicate a malfunction.
• The TV's demagnetizing function is working.  This does not indicate a
malfunction.
Button
Function
1
?/1
Turn off temporarily or
turn on the TV.
2
a
Display the TV program.
3
JUMP
Jump to previous
program number.
4
PROGR +/–
Select program number.
5 2
 +/–
Adjust volume.
6
SELECT
Select the desired item.
7
PIC MODE
Select picture mode.
9
+/–
Adjust items.
0
Display on-screen
information.
qa %
Mute the sound.
qd
t
Select TV or video input.
qf
0 – 9, ÷
Input numbers.
Timer operations
qj
Set TV to turn on
automatically.
qk
Set TV to turn off
automatically.
Sound mode operations (KV-TG21M90 only)
qg
SOUND MODE Select sound mode.
Stereo/bilingual operations
qh
A/B
Select stereo/bilingual
mode.
(KV-PG14M72 only)
Select Bilingual mode.
(KV-PG14P42 only)
Teletext operations
8
x
 (red, green,
yellow, blue)
0
qs
qd
qh
qj
qk
ql
FAVORITE
Not function for your TV.
H
Remote control
See



K


I
I
K
M
M
Not function for your TV.
TV
1
2
3
4
6
7
8
9
-
0
5
JUMP
SOUND 
MODE
 
FAVORITE
PROGR
2
qa
0
qs
qd
qf
qg
qh
qj
qk
ql
8
9
7
6
5
4
3
2
1
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