Sony KV-32FX20A Service Manual ▷ View online
7
Protection Error (Error 2):
AKB Error (Error 5):
Startup Diagnostic Errors (Errors 6-18, 27, 29-32):
100
90
80
70
50
60
40
30
20
10
0
Time / seconds
IKR
Return
Return
A
B
C
D
E
F
A.
IKR Return first goes high after 12 seconds.
B.
Micro begins checking IKR Return status 20 seconds after power on.
C.
Micro detects IKR return = 0.
D.
Micro detects that IKR has been 0 for 10 seconds; NVM counter is incremented and the LED
starts flashing (flashes 5 times, off for 2 seconds, flashes 5 times, etc.
starts flashing (flashes 5 times, off for 2 seconds, flashes 5 times, etc.
E.
Micro detects that IKR=1; LED continues to flash.
F.
Micro detects that IKR has been high for 10 seconds; LED stops flashing.
NVM
Error Description
6
SCL pin low
7
SDA pin low
8
Both SCL and the SDA pins are low
9
No acknowledge from the jungle (CXA2076)
10
No acknowledge from the video switch (CXA2040)
11
No acknowledge from the tuner
12
No acknowledge from the MSP
13
No acknowledge from the NVM
14
No acknowledge from the CXA2089 video switch (DS20 & DX20)
16
No acknowledge from the CXA1875 video Port Expander (DS20 & DX20)
18
No acknowledge from the Dynamic Convergence (CXA8070)
27
M3L_TXD pin low after Compact Text RAM test.
29
M3L_TXD pin low
30
M3L_RXD pin low
31
M3LEN pin low
32
Compact Text RAM test fail
Once every main loop (approximately 200ms OSD mode, 50ms text or menu mode), the micro checks the protection pin (pin 66). If the protection
pin is high 6 successive times, a protection error is diagnosed. The protection pin is not checked during the first 3 - 4 seconds after AC on.
If this error is diagnosed, the respective NVM register will be updated and the set goes straight into diagnostic standby with 2 flashes - no reset is
attempted.
pin is high 6 successive times, a protection error is diagnosed. The protection pin is not checked during the first 3 - 4 seconds after AC on.
If this error is diagnosed, the respective NVM register will be updated and the set goes straight into diagnostic standby with 2 flashes - no reset is
attempted.
Once every main loop the micro checks the AKB stability by reading the IKR return from the Jungle IC. IKR=1 means that the AKB is stable,
IKR=0 means that the AKB is unstable. If the AKB status is unstable for 10 seconds, an AKB error is diagnosed. AKB stability is not checked
during the first 20 seconds after AC switch on.
If this error is diagnosed, the respective NVM register will be updated and the response LED will flash 5 times continually, but the set will not go
into standby mode. If the AKB status becomes stable, and remains stable for 10 seconds, the LED will stop flashing.
IKR=0 means that the AKB is unstable. If the AKB status is unstable for 10 seconds, an AKB error is diagnosed. AKB stability is not checked
during the first 20 seconds after AC switch on.
If this error is diagnosed, the respective NVM register will be updated and the response LED will flash 5 times continually, but the set will not go
into standby mode. If the AKB status becomes stable, and remains stable for 10 seconds, the LED will stop flashing.
If any of these errors are detected, the respective NVM register will be incremented. The software will then carry on with the power up sequence.
8
General IIC Device Run-time Errors (Errors 19-23):
Compact Text Run-time Errors (Errors 26, 28, 33 & 34):
MSP and DSP Run-time Errors (Errors 24 & 25):
If any of these errors are detected, the respective NVM register will be incremented and the software will carry on.
NVM
Error Description
19
No acknowledge from Jungle when attempting to initialise.
20
No acknowledge from Jungle when attempting to read registers.
21
AV Switch cannot complete reset during initialisation.
22
No acknowledge from AV Switch when attempting to read registers.
23
No acknowledge from NVM when attempting to read or write.
In the case of these errors, the ‘device reset’ pin will be held low for 60ms, causing a hardware reset of Compact Text. Following this reset, a
longer timeout will be allowed for the M3L bus to recover. If the error still exists, the NVM register will be incremented and the software will carry
on.
longer timeout will be allowed for the M3L bus to recover. If the error still exists, the NVM register will be incremented and the software will carry
on.
NVM
Error Description
26
M3L_TXD pin low when checking register 81 (implies that no communication was
possible).
possible).
28
M3L_TXD pin low when attempting to initialise (implies that no communication was
possible).
possible).
33
Compact Text RAM test failed during initialisation of devices.
In the case, the ‘device reset’ pin will be held low for 60ms, causing a hardware reset of Compact Text. Compact Text will then be re-initialised and
the NVM counter updated. This is the same as for errors 26, 28 and 33 except that the M3L bus timeout is not changed.
the NVM counter updated. This is the same as for errors 26, 28 and 33 except that the M3L bus timeout is not changed.
NVM
Error Description
34
Register 81 check fail, but M3L_TXD pin high (implies that Compact Text has either
reset or become corrupted).
reset or become corrupted).
For both these errors, the software will refresh the MSP and DSP registers. If the errors still exist, the NVM counter will be incremented, and the
software will carry on.
software will carry on.
NVM
Error Description
24
Error 24 can be caused by any of the following :
- After MSP initialisation, Scart Prescale Register check fail (implies that the MSP
has either reset or become corrupted).
- MSP fails to acknowledge reset instruction.
- Scart Prescale Register check fail (implies that the MSP has either reset or
become corrupted).
- After MSP initialisation, Scart Prescale Register check fail (implies that the MSP
has either reset or become corrupted).
- MSP fails to acknowledge reset instruction.
- Scart Prescale Register check fail (implies that the MSP has either reset or
become corrupted).
25
- DSP test byte corrupted (implies that the MSP has either reset or become
corrupted).
corrupted).
9
Error Display Mode
Error Display Mode is entered by the following sequence of commands :
Standby -> Information -> Digit 5 -> Volume Down -> TV
This mode will display a special menu, which will list all possible errors and the number of occurrances of each error (0 - 255, as stored in the
NVM). There will also be a display of the current error (00 if no error). This display mode will appear as follows :
NVM). There will also be a display of the current error (00 if no error). This display mode will appear as follows :
ERROR DISPLAY MODE
Current Error Code = 00
Error Code
Occurrences
Error Code
Occurrences
2
2
19
0
3
--
20
0
4
--
21
0
5
0
22
0
6
0
23
0
7
0
24
0
8
0
25
4
9
0
26
5
10
0
27
89
11
0
28
3
12
0
29
0
13
0
30
0
14
0
31
0
15
3
32
0
16
0
33
3
17
0
34
38
18
6
Whilst in this mode, the number of occurences of each error can be reset to 0 by following sequence of Sircs commands: Digit 8 -> Digit 0.
‘TT08’ will also reset this NVM data.
‘TT08’ will also reset this NVM data.
This mode can only be exited by switching off the TV.
The Current Error Code can also be read by using a TV Error Reader (IIC slave address 42H). This device simply receives 1 data byte, which is the
error number in binary coded decimal form.
error number in binary coded decimal form.
10
8
Overview
Overview of the remote control buttons
To mute sound
Press to mute TV sound. Press
again to restore the sound.
again to restore the sound.
To display sound menu
Press to change the sound settings.
Press again to remove the display.
Press again to remove the display.
To adjust TV volume
Press to adjust the volume of the TV.
To temporarily switch off TV
Press to temporarily switch off TV. Press again
to switch on TV from standby mode.
To save energy we recommend switching off
completely when TV is not in use.
NOTE: After 15 -30 minutes without a TV
signal and without any button being pressed, the
TV switches automatically into standby mode.
to switch on TV from standby mode.
To save energy we recommend switching off
completely when TV is not in use.
NOTE: After 15 -30 minutes without a TV
signal and without any button being pressed, the
TV switches automatically into standby mode.
To reveal on screen information
Press to reveal all on-screen indications.
Press again to cancel.
Press again to cancel.
To select channels
Press to select channels.
To change screen format
Press to change the size of the screen.
To display picture menu
Press to change the picture settings.
Press again to remove the display.
Press again to remove the display.
To select teletext
Press to switch on Teletext.
To return to TV mode
Press to return to the normal operation
from teletext mode or standby mode.
from teletext mode or standby mode.
To select menu items
Use the OK button and arrow keys to
select the options available in the menu
system of this TV.
select the options available in the menu
system of this TV.
To select input signal or freeze teletext
Press to select inputs from the TV sockets (see
Using Optional Equipment section). In teletext
mode, press to freeze the displayed page. Press
once again to cancel.
Using Optional Equipment section). In teletext
mode, press to freeze the displayed page. Press
once again to cancel.
To display the menu
Press if you wish to use the TV menu
system. Press again to remove the menu
from the TV screen.
Press if you wish to use the TV menu
system. Press again to remove the menu
from the TV screen.
To select channels
Press the numbered buttons to select channels.
Press the numbered buttons to select channels.
For double digit programme numbers, e.g.23,
press -/-- first, then the buttons 2 and 3.
If you enter an incorrect first digit, this should
be corrected by entering another digit (0 - 9)
and then selecting -/-- button again to enter the
programme number of your choice.
press -/-- first, then the buttons 2 and 3.
If you enter an incorrect first digit, this should
be corrected by entering another digit (0 - 9)
and then selecting -/-- button again to enter the
programme number of your choice.
This button has no function
To return to previous channel
Press to return to the previous channel
you were watching. Note: This can be
done only after watching the present
channel for 5 seconds
Press to return to the previous channel
you were watching. Note: This can be
done only after watching the present
channel for 5 seconds
6
6. Automatically tuning the TV
1 When switching on the TV for the first time, the
‘LANGUAGE’ menu appears automatically on the TV
screen enabling you to select in which language you
wish to read the TV menu screens. Press the UP and
DOWN arrow keys on the remote control to select your
language then press the OK button to confirm your
selection.
screen enabling you to select in which language you
wish to read the TV menu screens. Press the UP and
DOWN arrow keys on the remote control to select your
language then press the OK button to confirm your
selection.
2 The ‘AUTO TUNE’ menu appears on the TV screen in
your selected language. Press the UP and DOWN arrow
keys to select ‘YES’ then press the OK button to
confirm.
keys to select ‘YES’ then press the OK button to
confirm.
3 A new menu appears asking you to check that the
antenna is connected. Ensure that the antenna is
connected then press the OK button to confirm. The TV
now starts to automatically search and store all available
channels for you. Please be patient and do not press any
buttons.
connected then press the OK button to confirm. The TV
now starts to automatically search and store all available
channels for you. Please be patient and do not press any
buttons.
4 When the TV has finished tuning in all available
channels, the ‘PROGRAMME SORTING’ menu appears
on the TV screen which enables you to change the
channel order on your TV. If you wish to change the
order of any of the TV channels, press the PROGR+/-
button on your remote control until the channel you wish
to rearrange appears on the screen. Press the UP or
DOWN arrow keys to select the new programme number
position for your selected channel. Press the OK button
to confirm. Repeat this procedure if you wish to change
the order of other channels on your TV.
on the TV screen which enables you to change the
channel order on your TV. If you wish to change the
order of any of the TV channels, press the PROGR+/-
button on your remote control until the channel you wish
to rearrange appears on the screen. Press the UP or
DOWN arrow keys to select the new programme number
position for your selected channel. Press the OK button
to confirm. Repeat this procedure if you wish to change
the order of other channels on your TV.
5 Press the MENU button to remove the menu from the
TV screen.
6 Press the PROGR+/- or the numbered buttons on the
remote control to view the TV channels.
Quick Start Guide
When you first switch on the TV, the following sequence of menu screens appear on the TV enabling you to 1) choose a
language for the TV menu screens, 2) add channels to the TV, 3) arrange the channels.
language for the TV menu screens, 2) add channels to the TV, 3) arrange the channels.
6
B/G
SYS
PROG
C26
CHAN
- - - - -
LABEL
AUTO PROGRAMME
AUTO PROGRAMME
Please confirm that
antenna is connected
antenna is connected
Confirm: OK
English
Deutsch
Français
Italiano
Nederlands
PolskiÈ
Deutsch
Français
Italiano
Nederlands
PolskiÈ
Č
esky
Magyar
Eλλnν kά
LANGUAGE
Yes
No
No
Do you want to start
automatic tuning?
automatic tuning?
Confirm: OK
0
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
B/G
B/G
B/G
B/G
B/G
B/G
B/G
B/G
B/G
B/G
B/G
B/G
B/G
B/G
B/G
B/G
B/G
B/G
B/G
SYS
PROG
C28
C29
C35
C38
C40
C42
C55
C56
C57
C58
C29
C35
C38
C40
C42
C55
C56
C57
C58
CHAN
BBC-W
VHS-2
CNN- -
- - - - -
MV-CH
VHS-1
- - - - -
8MM
- - - - -
- - - - -
VHS-2
CNN- -
- - - - -
MV-CH
VHS-1
- - - - -
8MM
- - - - -
- - - - -
LABEL
PROGRAMME SORTING
Select: OK Exit: MENU
0
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
B/G
B/G
B/G
B/G
B/G
B/G
B/G
B/G
B/G
B/G
B/G
B/G
B/G
B/G
B/G
B/G
B/G
B/G
B/G
SYS
PROG
C28
C29
C35
C38
C40
C42
C55
C56
C57
C58
C29
C35
C38
C40
C42
C55
C56
C57
C58
CHAN
BBC-W
VHS-2
CNN- -
- - - - -
MV-CH
VHS-1
- - - - -
8MM
- - - - -
- - - - -
VHS-2
CNN- -
- - - - -
MV-CH
VHS-1
- - - - -
8MM
- - - - -
- - - - -
LABEL
PROGRAMME SORTING
Select Position:
4$
Confirm: OK
SECTION 1 GENERAL
The operating instructions mentioned here are partial abstracts
from the Operating Manual. The page numbers of the Operating
Instruction Manual remain as in the manual.
from the Operating Manual. The page numbers of the Operating
Instruction Manual remain as in the manual.
Click on the first or last page to see other KV-32FX20A service manuals if exist.