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SERVICE MANUAL
MODEL
COMMANDER DEST CHASSIS NO.
BE-3E CHASSIS
MODEL
COMMANDER DEST CHASSIS NO.
KV-32FX20A KV-32FX20B KV-32FX20D
RM-887
Italian
SCC-Q22B-A
RM-887
French
SCC-Q23B-A
KV-32FX20E KV-32FX20U
RM-887
Spanish
SCC-Q24B-A
RM-887
UK
SCC-Q25B-A
RM-887
AEP
SCC-Q21B-A
TRINITRON ® COLOR TV
MICROFILM
®
1
ITEM MODEL
Television System
Stereo System
Channel Coverage ITALIA VHF : A-H2 (C) UHF : 21-69 PAL B/G/H VHF : E2-E12 UHF : E21-E69 CABLE TV (1) : S1-S41 CABLE TV (2) : S01-S05,M1-M10,U1-U10
Color System
Italian
B/G/H
GERMAN Stereo
PAL, SECAM NTSC4.43, NTSC3.58 (VIDEO IN)
French B/G/H, D/K,L,I GERMAN/NICAM Stereo
L VHF : F02-F10 UHF : F21-F60 CABLE : B-Q B/G/H VHF : E2-E12 UHF : E21-E69 CABLE TV (1) : S1-S41 CABLE TV (2) : S01-S05, M1-M10, U1-U10 ITALIA VHF : A-H2 (C) UHF : 21-69 I UHF : B21-B69 PAL B/G/H/ VHF : E2-E12 : E21-E69 CABLE TV (1) : S1-S41 CABLE TV (2) : S01-S05, M1-M10, U1-U10 ITALIA VHF : A-H2 (C) UHF : 21-69
PAL, SECAM NTSC4.43, NTSC3.58 (VIDEO IN)
AEP
B/G/H
GERMAN Stereo
PAL, SECAM NTSC4.43, NTSC3.58 (VIDEO IN)
Spanish
B/G/H, D/K
GERMAN/NICAM Stereo
PAL B/G/H/ VHF : E2-E12 : E21-E69 CABLE TV (1) : S1-S41 CABLE TV (2) : S01-S05, M1-M10, U1-U10 ITALIA VHF : A-H2 (C) UHF : 21-69
PAL, SECAM NTSC4.43, NTSC3.58 (VIDEO IN)
UK
I
NICAM Stereo
UHF : B21-B69
PAL NTSC4.43, NTSC3.58 (VIDEO IN)
MODEL Power Consumption
32FX20A 106W
32FX20B 120W
32FX20D 120W
32FX20E 120W
32FX20U 176W
[PICTURE TUBE]
FD Trinitron Wide Approx. 82 cm (32 inches) (Approx. 76 cm picture measured diagonally) 102 degree deflection
[FRONT]
3 Video output - phono jack 3 Audio inputs - phono jacks
S Video input - 4 pin din Headphone jack : stereo minijack
Input/Output Terminals
[REAR]
1 21-pin Euro connector (CENELEC standard).
Inputs for Audio and Video signals. Inputs for RGB. Outputs of TV Video and Audio signals.
Sound output Subwoofer Power requirements Dimensions Weight Supplied accessories
2x20W (Music Power) 20W (Music Power) 220 - 240V Approx 874x563x571mm (w/h/d) Approx 62kg RM-887 Remote Commander (1) IEC designated R6 batteries (2) NICAM*, FASTEXT, TOPTEXT * (KV-32FX20B, 32FX20E, 32FX20U)
2/
-
2 21-pin Euro connector
Inputs for Audio and Video signals. Inputs for S video. Outputs for Video and Audio signals (selectable). Phono jacks Outputs for Audio Signals
Other features
[RM-887] Remote control system Power requirements
Dimensions Weight
Infrared control 3V dc 2 batteries IEC designation R6 (size AA) Approx 44x209x23mm (w/h/d) Approx 89g (Not including battery)
Design and specifications are subject to change without notice.
2
Model Name Item Pal Comb PIP RGB Priority Woofer Box Scart 1 Scart 2 Front in (3) Scart 4 Projector AKB in 16:9 mode Norm B/G Norm I Norm D/K Norm AUS Norm L Norm SAT Norm M Teletext Nicam Stereo Language Preset
KV-32FX20A
KV-32FX20B
KV-32FX20D
KV-32FX20E
KV-32FX20U
OFF OFF OFF ON ON ON ON OFF OFF ON ON OFF OFF OFF OFF OFF OFF ON OFF Italian
OFF OFF OFF ON ON ON ON OFF OFF ON ON ON ON OFF ON OFF OFF ON ON French
OFF OFF OFF ON ON ON ON OFF OFF ON ON OFF OFF OFF OFF OFF OFF ON OFF German
OFF OFF OFF ON ON ON ON OFF OFF ON ON OFF ON OFF OFF OFF OFF ON ON Spanish
OFF OFF OFF ON ON ON ON OFF OFF ON OFF ON OFF OFF OFF OFF OFF ON ON English
WARNING (KV-32FX20U only)
The flexible mains lead is supplied connected to a B.S. 1363 fused plug having a fuse of 5 AMP capacity. Should the fuse need to be replaced, use a 5 AMP FUSE approved by ASTA to BS 1362, ie one that carries the ASA mark. T IF THE PLUG SUPPLIED WITH THIS APPLIANCE IS NOT SUITABLE FOR THE OUTLET SOCKETS IN YOUR HOME, IT SHOULD BE CUT OFF AND AN APPROPRIATE PLUG FITTED. THE PLUG SEVERED FROM THE MAINS LEAD MUST BE DESTROYED AS A PLUG WITH BARED WIRES IS DANGEROUS IF ENGAGED IN A LIVE OUTLET SOCKET. When an alternative type of plug is used it should be fitted with a 5 AMP FUSE, otherwise the circuit should be protected by a 5 AMP FUSE at the distribution board.
How to replace the fuse. Open the fuse compartment with a screwdriver blade and replace the fuse.
FUSE
3
21 pin connector (
1,
2/
2)
Pin No 1 1 2 4 Signal Audio output B (right) Audio output B (right) Audio output A (left) Ground (audio) Ground (blue) Audio input A (left) Blue input Function select (AV control) Ground (green) Open Green Open Ground (red) Ground (blanking) _ 15 _ _ Red input (S signal Chroma input) Blanking input (Ys signal) Ground (video output) Ground (video input) Video output _ _ Video input Video input Y (S signal) Common ground (plug, shield) Connected Not Connected (open) * at 20Hz - 20kHz 1V +/- 3dB, 75ohms, positive sync 0.3V (-3+10dB) 1V +/- 3dB, 75ohms, positive sync 0.3V (-3+10dB) 1V +/- 3dB, 75ohms, positive sync 0.3V (-3+10dB) 0.7 +/- 3dB, 75 ohms, positive 0.3 +/- 3dB, 75 ohms, positive High state (1-3V) Low state (0-0.4V) Input impedence : 75 ohms Green signal : 0.7 +/- 3dB, 75 ohms, positive Standard level : 0.5V rms Output impedence : More than 10kohm* 0.7 +/- 3dB, 75 ohms positive High state (9.5-12V) : Part mode Low state (0-2V) : TV mode Input impedence : More than 10K ohms Input capacitance : Less than 2nF Signal level Standard level : 0.5V rms Output impedence : Less than 1kohm* Standard level : 0.5V rms Output impedence : More than 10kohm* Standard level : 0.5V rms Output impedence : Less than 1kohm*
2 3
1 2
S 2
4 5 6 7 8
R/D/D/D
L/G/S/I
9
21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 3 2 1 4
10 11 12 13 14
16 17 18 19
20
_
21
+ MONO _
s
+
P
Pin No. 1 2 3 4
Signal Ground Ground Y (S signal) input C (S signal) input 1V 0.3V
Signal Level
_
3 L/G/S/I R/D/D/D 3
3dB 75 ohm, positive Sync. 0.3V -3 + 10dB 3dB 75 ohm, positive Sync.
4
TABLE OF CONTENTS
Section Title Warning and Caution Self-Diagnostic Function Page .....................3 .....................6 Section Title Page
4. CIRCUIT ADJUSTMENTS
4-1. 4-2. 4-3. Electrical Adjustments `TT' Test Mode `T' Test Mode .....................24 .....................27 .....................28
1. GENERAL
Overview of the Remote Control Buttons Adjusting the Picture Adjusting the Sound Teletext Troubleshooting .....................10
5. DIAGRAMS
.....................12 .....................12 .....................13 .....................14 5-1. 5-2. 5-3. Block Diagrams (1) Block Diagrams (2) Circuit Board Location Schematic Diagrams and Printed Wiring Boards * C Board * D Board * D2 Board * VM Board * H Board * A Board * D1 Board Semiconductors IC Blocks .....................29 .....................33 .....................36 .....................36 .....................37 .....................43 .....................46 .....................47 .....................51 .....................59 .....................64 .....................69 .....................71
2. DISASSEMBLY
2-1. 2-2. 2-3-1. 2-3-2. 2-4. 2-5. 2-6. 2-7. Rear Cover Removal Chassis Assy Removal Service Position (1) Service Position (2) Wire Dressing A Board Removal A Extension Board Picture Tube Removal Removal and Replacement of the Main - Bracket Bottom Plates .....................15 .....................15 .....................15 .....................15 .....................16 .....................16 .....................16 .....................17 .....................18
5-4. 5-5.
6. EXPLODED VIEWS
6-1. 6-2. .....................19 .....................20 .....................22 .....................22 .....................23 Chassis Picture Tube .....................73 .....................74 .....................75
3. SET-UP ADJUSTMENTS
3-1. 3-2. 3-3. 3-4. 3-5. Beam Landing Convergence Screen G2 Focus White Balance
7. ELECTRICAL PARTS LIST
CAUTION SHORT CIRCUIT THE ANODE OF THE PICTURE TUBE AND THE ANODE CAP TO THE METAL CHASSIS, CRT SHIELD, OR THE CARBON PAINTED ON THE CRT, AFTER REMOVAL OF THE ANODE CAP WARNING !! AN ISOLATING TRANSFORMER SHOULD BE USED DURING ANY SERVICE WORK TO AVOID POSSIBLE SHOCK HAZARD DUE TO LIVE CHASSIS. THE CHASSIS OF THIS RECEIVER IS DIRECTLY CONNECTED TO THE POWER LINE. SAFETY-RELATED COMPONENT WARNING !! COMPONENTS IDENTIFIED BY SHADING AND MARKED ON THE SCHEMATIC DIAGRAMS, EXPLODED VIEWS AND IN THE PARTS LIST ARE CRITICAL FOR SAFE OPERATION. REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY.
ATTENTION APRES AVOIR DECONNECTE LE CAP DE'LANODE, COURT-CIRCUITER L'ANODE DU TUBE CATHODIQUE ET CELUI DE L'ANODE DU CAP AU CHASSIS METALLIQUE DE L'APPAREIL, OU AU COUCHE DE CARBONE PEINTE SUR LE TUBE CATHODIQUE OU AU BLINDAGE DU TUBE CATHODIQUE. ATTENTION !! AFIN D'EVITER TOUT RISQUE D'ELECTROCUTION PROVENANT D'UN CHÁSSIS SOUS TENTION, UN TRANSFORMATEUR D'ISOLEMENT DOIT ETRE UTILISÈ LORS DE TOUT DÈPANNAGE. LE CHÁSSIS DE CE RÈCEPTEUR EST DIRECTMENT RACCORDÈ Á L'ALIMENTATION SECTEUR. ATTENTION AUX COMPOSANTS RELATIFS Á LA SÈCURITÈ !! LES COMPOSANTS IDENTIFIÈS PAR UNE TRAME ET PAR UNE MARQUE SUR LES SCHÈMAS DE PRINCIPE, LES VUES EXPLOSÈES ET LES LISTES DE PIECES SONT D'UNE IMPORTANCE CRITIQUE POUR LA SÈCURITÈ DU FONCTIONNEMENT, NE LES REMPLACER QUE PAR DES COMPSANTS SONY DONT LE NUMÈRO DE PIÈCE EST INDIQUÈ DANS LE PRÈSENT MANUEL OU DANS DES SUPPLÈMENTS PUBLIÈS PAR SONY.
5
BE-3E SELF DIAGNOSTIC SOFTWARE
The errors indicated below can be read using an Error Reader Display (Part Number S-188-900-10) connected to the service connector. Once an error has been detected it will then be displayed on the two digit error reader. During the power up procedure and during normal run time, the micro's self diagnostic procedures monitor for various errors. Errors displayed refer to the table indicated below.
Error Number 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34
Error Description No error (TV Error Reader shows 00 in normal condition) Not allowed (may be confused with Sircs response flash on LED) Protection circuit trip (OCP OVP & No V-Sync) , Reserved for OVP (Included in error 2 for BE-3E) Reserved for No V-Sync (Included in error 2 for BE-3E) AKB IIC Scl Low IIC Sda Low IIC Sda & Scl Low Jungle controller no acknowledge Video Switch (CXA2040) no acknowledge Tuner no acknowledge MSP no acknowledge NVM no acknowledge AV switch (CXA2089) no acknowledge (DS20 & DX20) Not used Port Expander (CXA1875) no acknowledge (DS20 & DX20) Not used Dynamic Convergence (CXA8070) no acknowledge Cannot Initialise jungle (after initial power on check OK) - Jungle controller response failure after power up check (+9V test) Video Switch (CXA2040) cannot power on reset - Video Switch (CXA2040) response failiure after power up check (+9V test) NVM acknowledge fail after initialisation (STBY +5V - same as micro!) MSP run-time failure DSP run-time failure M3L bus Clock low time out after data send M3L bus Clock low time out after data send M3L bus Clock low time out after data send M3L Txd Low M3L Rxd Low M3L Enable Low Compact Text test fail Compact Text does not respond (+5V test) Compact text run-time failure
6
Protection Error (Error 2):
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.
AKB Error (Error 5):
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.
Time / seconds
0 10 20 30 40 50 60 70 80 90 100
IKR Return
A B C D E F
A. B. C. D. E. F.
IKR Return first goes high after 12 seconds. Micro begins checking IKR Return status 20 seconds after power on. Micro detects IKR return = 0. 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. Micro detects that IKR=1; LED continues to flash. Micro detects that IKR has been high for 10 seconds; LED stops flashing.
Startup Diagnostic Errors (Errors 6-18, 27, 29-32):
NVM 6 7 8 9 10 11 12 13 14 16 18 27 29 30 31 32 Error Description SCL pin low SDA pin low Both SCL and the SDA pins are low No acknowledge from the jungle (CXA2076) No acknowledge from the video switch (CXA2040) No acknowledge from the tuner No acknowledge from the MSP No acknowledge from the NVM No acknowledge from the CXA2089 video switch (DS20 & DX20) No acknowledge from the CXA1875 video Port Expander (DS20 & DX20) No acknowledge from the Dynamic Convergence (CXA8070) M3L_TXD pin low after Compact Text RAM test. M3L_TXD pin low M3L_RXD pin low M3LEN pin low Compact Text RAM test fail
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.
7
General IIC Device Run-time Errors (Errors 19-23):
NVM 19 20 21 22 23 Error Description No acknowledge from Jungle when attempting to initialise. No acknowledge from Jungle when attempting to read registers. AV Switch cannot complete reset during initialisation. No acknowledge from AV Switch when attempting to read registers. No acknowledge from NVM when attempting to read or write.
If any of these errors are detected, the respective NVM register will be incremented and the software will carry on.
Compact Text Run-time Errors (Errors 26, 28, 33 & 34):
NVM 26 28 33 Error Description M3L_TXD pin low when checking register 81 (implies that no communication was possible). M3L_TXD pin low when attempting to initialise (implies that no communication was possible). Compact Text RAM test failed during initialisation of devices.
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.
NVM 34 Error Description Register 81 check fail, but M3L_TXD pin high (implies that Compact Text has either reset or become corrupted).
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.
MSP and DSP Run-time Errors (Errors 24 & 25):
NVM 24 Error Description 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). - DSP test byte corrupted (implies that the MSP has either reset or become corrupted).
25
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.
8
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 :
ERROR DISPLAY MODE Current Error Code = 00
Error Code 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
Occurrences 2 --0 0 0 0 0 0 0 0 0 0 3 0 0 6
Error Code 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34
Occurrences 0 0 0 0 0 0 4 5 89 3 0 0 0 0 3 38
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. 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.
9
SECTION 1 GENERAL
Overview Quick Start Guide
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.
Overview of the remote control buttons
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 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. 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 To display the menu Press if you wish to use the TV menu system. Press again to remove the menu from the TV screen. To select menu items Use the OK button and arrow keys to select the options available in the menu system of this TV. 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. To adjust TV volume Press to adjust the volume of the TV. This button has no function To select channels Press to select channels.
6. Automatically tuning the TV
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.
To mute sound Press to mute TV sound. Press again to restore the sound. To reveal on screen information Press to reveal all on-screen indications. Press again to cancel. 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. To return to TV mode
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.
LANGUAGE English Deutsch Français Italiano Nederlands PolskiÈ Cesky Magyar En k
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.
Do you want to start automatic tuning? Yes No Confirm: OK
Press to return to the normal operation from teletext mode or standby mode. To select teletext Press to switch on Teletext. To display sound menu Press to change the sound settings. Press again to remove the display.
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.
Please confirm that antenna is connected Confirm: OK
10
8
AUTO PROGRAMME PROG 6 SYS B/G CHAN C26 LABEL -----
AUTO PROGRAMME
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.
PROGRAMME SORTING PROG 0 1 2 3 4 5 6 7 8 9 SYS B/G B/G B/G B/G B/G B/G B/G B/G B/G B/G CHAN C28 C29 C35 C38 C40 C42 C55 C56 C57 C58 LABEL BBC-W VHS-2 CNN- ----MV-CH VHS-1 ----8MM ---------
Select: OK
Exit: MENU
PROGRAMME SORTING PROG 0 1 2 3 4 5 6 7 8 9 SYS B/G B/G B/G B/G B/G B/G B/G B/G B/G B/G CHAN C28 C29 C35 C38 C40 C42 C55 C56 C57 C58 LABEL BBC-W VHS-2 CNN- ----MV-CH VHS-1 ----8MM --------Confirm: OK
5 Press the MENU button to remove the menu from the TV screen.
Select Position: 4$
6 Press the PROGR+/- or the numbered buttons on the remote control to view the TV channels.
6
Additional TV Features
Additional TV Features
Choosing a language for the TV menu screens
The TV consists of a menu system which can appear on screen in a variety of languages. Use the following feature to select the language that best suits you.
PICTURE CONTROL
Re-arranging the TV channels
After automatically tuning the TV, you can use this feature to change the channel order. You may wish for example to exchange the channel on programme number 8 with the channel on programme number 4. 1 Press the MENU button on the remote control to display the menu on the TV screen.
PICTURE CONTROL Picture Mode Contrast Reset FormatFormat Personal
1 Press the MENU button on the remote control to display the menu on the TV screen.
Picture Mode Contrast Reset FormatFormat
Personal
.........
PICTURE CONTROL Picture Mode Contrast Reset FormatFormat Personal
.........
Wide
Wide
.........
PICTURE CONTROL Picture Mode Contrast Reset FormatFormat Personal
.........
Wide
Wide
PRESET
2 Press the UP or DOWN arrow keys to select the symbol on the menu screen then press the RIGHT arrow key to enter the `PRESET' menu
Auto Programme Manual Programme Further Programme Preset AV Label Preset Programme Sorting Parental Lock Language Picture Rotation 0
PRESET
2 Press the DOWN arrow key on the remote control to select the symbol on the menu screen then press the RIGHT arrow key to enter the `PRESET' menu.
Auto Programme Manual Programme Further Programme Preset AV Label Preset Programme Sorting Parental Lock Language Picture Rotation 0
LANGUAGE
3 Press the UP or DOWN arrow keys to select `Language' on the menu screen then press the RIGHT arrow key to enter the `LANGUAGE' menu.
4 Press the UP or DOWN arrow keys to select your chosen language.
English Deutsch Français Italiano Nederlands PolskiÈ Cesky Magyar En k
PROGRAMME SORTING
3 Press the DOWN arrow key to select `Programme Sorting' then press the RIGHT arrow key to enter the `PROGRAMME SORTING' menu.
PROG 0 1 2 3 4 5 6 7 8 9
SYS BG BG BG BG BG BG BG BG BG BG
CHAN C28 C29 C35 C38 C40 C42 C55 C56 C57 C58
LABEL BBC-W VHS-2 CNN- ----MV-CH VHS-1 ----8MM ---------
PROGRAMME SORTING
5 Press the OK button to confirm your selection.
4 Press the UP or DOWN arrow keys to select the programme position of the channel you want to move (e.g. PROG 8) then press the OK button to confirm.
6 Press the MENU button to remove the display from the TV screen.
PROG 0 1 2 3 4 5 6 7 8 9
SYS BG BG BG BG BG BG BG BG BG BG
CHAN C28 C29 C35 C38 C40 C42 C55 C56 C57 C58
LABEL BBC-W VHS-2 CNN- ----MV-CH VHS-1 ----8MM ---------
11
9
5 Press the UP or DOWN arrow keys to select the new programme position for your selected channel (e.g. PROG 4) then press the OK button to confirm. The two selected channels now exchange position.
PROGRAMME SORTING PROG 0 1 2 3 4 5 6 7 8 9 SYS BG BG BG BG BG BG BG BG BG BG CHAN C28 C29 C35 C38 C40 C42 C55 C56 C57 C58 LABEL BBC-W VHS-2 CNN- ----MV-CH VHS-1 ----8MM ---------
6 Repeat steps 4 and 5 if you wish to sort other channels.
7 Press the MENU button to remove the menu from the TV screen.
11
Additional TV Features
Additional TV Features
Adjusting the picture
Although the picture is adjusted at the factory, you can modify it to suit your own taste.
Adjusting the sound
Although the sound is adjusted at the factory, you can modify it to suit your own taste.
PICTURE CONTROL
1 Press the MENU button on the remote control to display the menu on the TV screen. 2 Press the UP or DOWN arrow key on the remote control to select the symbol on the menu screen then press the RIGHT arrow key to enter the `PICTURE CONTROL' menu. 3 Press the UP or DOWN arrow keys to select the item on the screen you wish to adjust then press the RIGHT arrow key to confirm. For a description of the menu items and their effects, see the table underneath. 4 If you selected `Picture Mode' or `Format' in step 3, press the UP or DOWN arrow keys to select the item on the screen you wish to adjust then press the RIGHT arrow key to confirm. 5 Press the RIGHT or LEFT arrow keys to adjust your selected item. 6 As soon as you have adjusted the item, press the OK button to store the new setting. 7 If you selected `Picture Mode' or `Format' in step 3, press the LEFT arrow key to return to the `PICTURE CONTROL' menu. 8 Repeat steps 3-7 to adjust the other items. 9 Press the MENU button to remove the menu from the TV screen.
PICTURE CONTROL Picture Mode Contrast Reset FormatFormat Personal
.........
PICTURE CONTROL Picture Mode Contrast Reset FormatFormat Personal
.........
Wide
Wide
1 Press the MENU button on the remote control to display the menu on the TV screen. 2 Press the DOWN arrow key on the remote control to select the symbol on the menu screen then press the RIGHT arrow key to enter the `SOUND CONTROL' menu.
Picture Mode Contrast Reset FormatFormat
Personal
.........
PICTURE CONTROL Picture Mode Contrast Reset FormatFormat Personal
.........
Wide
Wide
SOUND CONTROL Sound Mode Balance Reset Spatial Dual Sound Volume Offset Volume Dual Sound Personal
.........
PICTURE CONTROL Picture Mode Contrast Reset FormatFormat Personal
.........
Wide
3 Press the UP or DOWN arrow keys to select the item on the screen you wish to adjust then press the RIGHT arrow key to confirm. For a description of the menu items and their effects, see the table underneath. 4 If you selected `Sound Mode' in step 3, press the UP or DOWN arrow keys to select the item on the screen you wish to adjust then press the RIGHT arrow key to confirm. 5 Press the RIGHT or LEFT arrow keys to adjust your selected item. 6 As soon as you have adjusted the item, press the OK button to store the new setting. 7 If you selected `Sound Mode' in step 3, press the LEFT arrow key to return to the `SOUND CONTROL' menu. 8 Repeat steps 3-7 to adjust the other items. 9 Press the MENU button to remove the menu from the TV screen.
Sound Mode B Personal Jazz Rock b Pop Less B bMore
Off Mono 0. . . Mono
......
Picture Mode
Picture Mode
Brightness* Colour* Sharpness* Hue** Contrast Reset Format Format Scroll Auto 16:9
B Personal (for individual settings) Movie (for films) b Live (for live broadcasts) B Darker b Brighter B Less b More B Softer b Sharper B Greenish b Reddish B Less b More
12
3 Press or
Balance Resets picture to factory preset levels (refer to page 14 for details) B Off bOn Reset Spatial
Resets picture to factory preset levels B On: volume level of the channels will stay the same b Off: volume level changes according to the broadcast signal StereoB bMono (for a stereo broadcast) A for channel 1B bB for channel 2 (for a bilingual broadcast) B The channel volume level can be adjusted over a range of -12 to +12 b
* Only if you select `Personal' in `Picture Mode'. **Available for NTSC colour system only. Dual Sound
Changing picture and sound modes quickly
You can quickly change the Picture Mode or the Equalizer Mode without entering the `PICTURE CONTROL' or the `SOUND CONTROL' menu screens. 1 Press the symbol on the remote control for picture modes or the symbol for equalizer modes. 2 Press the UP or DOWN arrow keys to select the desired mode. again to remove the display from the TV screen.
Volume Offset
Personal Movie Live
Personal Rock Jazz Pop
Headphones 2 Volume 2 Dual Sound
Less B bMore StereoB bMono (for a stereo broadcast) A for channel 1B bB for channel 2 (for a bilingual broadcast)
12
13
Additional TV Features
Teletext
Manually fine tuning the TV picture
If the picture is distorted, you can manually fine-tune the TV to obtain a better picture reception.
PICTURE CONTROL Picture Mode Contrast Reset FormatFormat Personal
Teletext
Teletext is an information service transmitted by most TV stations.
1 Press the MENU button on the remote control to display the menu on the TV screen.
.........
PICTURE CONTROL Picture Mode Contrast Reset FormatFormat Personal
.........
Wide
Wide
Switching Teletext on and off
1 When viewing channels, press a number button on the remote control to select the channel which carries the teletext service you wish to receive. 2 Press the teletext. button on the remote control to switch on
TELETEXT
Index Programme News Sport Weather 25 153 101 98
TELETEXT
Index Programme News Sport Weather 25 153 101 98
PRESET Auto Programme Manual Programme Further Programme Preset AV Label Preset Programme Sorting Parental Lock Language Picture Rotation 0
2 Press the DOWN arrow key to select the symbol on the menu screen then press the RIGHT arrow key to enter the `PRESET' menu.
FURTHER PROGRAMME PRESET
3 Input three digits for the page number using the numbered buttons on the control. If you make a mistake, type in any three digits then re-enter the correct page number. 4 Press the button to switch off teletext.
3
Press the DOWN arrow key to select `Further Programme Preset' then press the RIGHT arrow key to enter the `FURTHER PROGRAMME PRESET' menu.
PROG 0 1 2 3 4 5 6 7 8 9
AFT On On On On On On On On On On
DECODER Off Off AV1 Off AV2 Off Off Off Off Off
NOTE: Teletext errors may occur if the broadcasting signals are weak.
4
Press the UP or DOWN arrow keys to select the programme number you want to manually fine-tune.
FURTHER PROGRAMME PRESET
Using Other Teletext Functions
To superimpose teletext on to the TV Press the button on the remote control once in teletext mode or twice in TV mode to superimpose teletext on to the TV screen. Press button once more to cancel.
TELETEXT TELETEXT
Index Programme News Sport Weather 25 153 101 98
13
5 Press the RIGHT arrow key repeatedly until the AFT column is highlighted. 6 Press the UP or DOWN arrow keys to fine tune the channel frequency over a range of -15 to +15. 7 Press the OK button to confirm. 8 Repeat steps 4 to 7 to fine-tune other channels. 9 Press the MENU button to remove the menu from the TV screen.
PROG 0 1 2 3 4 5 6 7 8 9
AFT On On On On On On 10 On On On
DECODER Off Off AV1 Off AV2 Off Off Off Off Off
To Move to Next or Preceding Page on the control to select the previous or next Press or page. To Freeze a Teletext Page Press on the control to freeze the page. Press again to cancel the freeze. Revealing concealed information (eg: answers to a quiz). to reveal information. Press again to conceal the Press information. Using Fastext (only available if the TV station broadcasts Fastext signals) When the colour coded menu appears at the bottom of a page, press the colour button (green, red, yellow or blue) on the control to access the corresponding page.
Index Programme News Sport Weather 25 153 101 98
15
22
Additional Information
Additional Information
Specifications
TV system B/G/H Colour system PAL, SECAM NTSC 3.58, 4.43 (only Video In) Channel coverage See `Receivable Channels' table on next page Picture tube KV-28FX20D: FD Trinitron WIDE Approx. 71 cm (28 inches) (Approx. 66 cm picture measured diagonally), 102° deflection KV-32FX20D: FD Trinitron WIDE Approx. 82 cm (32 inches) (Approx. 76 cm picture measured diagonally), 102° deflection Rear Terminals 21-pin Euro connector (CENELEC standard) including audio/video 1 input, RGB input
Troubleshooting
Here are some simple solutions to problems which may affect the picture and sound.
Problem No picture (screen is dark), no sound
Solution · Plug the TV in. button on the front of TV. · Press the · · · · If the indicator is on press
/
button or a
programme number button on the remote control. Check the aerial connection. Check that the selected video source is on. Turn the TV off for 3 or 4 seconds and then turn it on again using the button on the front of the TV. Using the MENU system, select the Picture Control and Picture Mode displays. Adjust the contrast, brightness, and colour levels. From the Picture Control display select RESET to return to factory settings.
Poor or no picture (screen is dark), but good sound.
·
· Poor picture quality when watching a RGB video source. Good picture, no sound
2/
s
2 21-pin Euro connector (CENELEC standard) including audio/video input, S-video input, Monitor audio/video output
Audio outputs - phono jacks
· Press the button repeatedly on the remote control until the RGB symbol is displayed on the screen. · · · · Press the +/ button on the remote control. If is displayed on the screen, press the button on the remote control. Using the MENU system, select the Picture Mode display. Adjust the the colour level setting. From the Picture Control display select RESET to return to factory settings. Turn off any equipment connected to the 21 pin Euro connectors on the rear of the TV. Replace the batteries. Contact your nearest Sony service centre.
Front Terminals 3 video input - phono jack
s
No colour on colour programmes
14
26
3 audio inputs - phono jacks 2 S video input - 4 pin DIN Headphones jack - minijack stereo
Sound output: Left, Right Subwoofer
Distorted picture when changing programmes or selecting teletext Remote control does not function The standby indicator flashes on the TV
· · ·
2x20W (music power) 20W (music power)
Power consumption KV-28FX20D: 123 W KV-32FX20D: 120 W Dimensions (wxhxd) KV-28FX20D: Approx. 761 x 496 x 525 mm KV-32FX20D: Approx. 874 x 563 x 571 mm Weight KV-28FX20D: KV-32FX20D: Approx. 44.0 kg Approx. 62.0 kg
· If you continue to have these problems, have your TV serviced by qualified personnel. · NEVER open the casing yourself.
Accessories supplied RM-887 Remote Control (1) IEC designated size AA battery (2) Other features TELETEXT Design and specifications are subject to change without notice.
28
SECTION 2 DISASSEMBLY
2-1. REAR COVER REMOVAL
3 Rear Cover
2-2. CHASSIS ASSY REMOVAL
2 8 Screws (BTVTP 4x16)
1 1 Screw (BTVP 4x16)
15
2-3-1. SERVICE POSITION (1)
2-3-2. SERVICE POSITION (2)
2 Insert into heatsink 1 Clip bracket into Beznet 1 Snap off from main bracket
2-4. WIRE DRESSING
2-5. A BOARD REMOVAL
A Board
1 Remove CN301 before removing A board
16
2-6. A EXTENSION BOARD
A board
BE-3E Extension Board
2-7. PICTURE TUBE REMOVAL
·
REMOVAL OF ANODE-CAP
7 DGC holders
Note : Short circuit the anode of the picture tube and the anode cap to the metal chassis, CRT shield or carbon paint on the CRT, after removing the anode.
* REMOVING PROCEDURES.
c
a
b b
8 Degaussing coils
1 Turn up one side of the rubber cap in the direction indicated by the arrow a
Anode button
9 Spring Extension 2 Chassis assy 3 C board ·
1 2 3
2 Using a thumb pull up the rubber cap 3 When one side of the rubber cap is firmly in the direction indicated by the separated from the anode button, the arrow b 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 THE ANODE-CAP
To prevent damaging the surface of the anode-cap do not use sharp materials. Do not apply too great a pressure on the rubber, as this may cause damage to the anode connector. A metal fitting called a shatter hook terminal is fitted inside the rubber cap. Do not turn the rubber foot over excessively this may cause damage if the shatter hook sticks out.
4 VM Board 5 Neck assy
17
6 Deflection yoke Anode cap 1 10 Four PT screws 11 Picture tube Cushion
REMOVAL AND REPLACEMENT OF THE MAIN-BRACKET BOTTOM PLATES.
(1) REMOVING THE PLATES (2)
£
For safety reasons, on no account should the plates be removed and not refitted after servicing. REFITTING THE PLATES
In the event of servicing being required to the solder side of the D Board printed wiring board, the bottom plates fitted to the main chassis bracket require to be removed. This is performed by cutting the gates with a sharp wire cutter at the locations indicated by arrows. Note :There are 4 plates fitted to the main bracket and secured by 6 gates. Only remove the necessary plate to gain access to the printed wiring board.
Because the plates differ in size it is important that the correct plates are refitted in their original location. The plates are identified by numerical markings on their top side e.g. 1,2 1. 2. 3. 4. Identify the plate by locating its marking. Rotate the plate through 180' (do not flip over). Locate the corresponding numerical markings indicated on the main chassis. See Fig 2. Refit the plate as indicated in Fig 3 with the markings located next to each other.
Cut points REFITTING
THIS PLATE MUST BE REMOVED (TURN 180' NOT FLIP OVER) AFTER CUTTING AWAY FOR SAFETY REASONS
REFITTING
ATTENTION
2
2
THIS PLATE MUST BE REMOVED AFTER CUTTING AWAY FOR THE SAFETY REASON.
2
1
THIS PLATE MUST BE REMOVED (TURN 180' NOT FLIP OVER) AFTER CUTTING AWAY FOR SAFETY REASONS
ATTENTION
1
2
2
Fig 1
Fig 2
NUMERICAL MARKINGS
MAIN BRACKET
INSERT FROM THE BOTTOM SIDE FIG 3
In the event of the plates requiring to be removed at a later stage, this can be achieved by inserting a screwdriver in the snap-recess indicated as in Fig 4 and lifting out.
Fig 4
4
4
18
1 2
4
2 1 2
3 4
SECTION 3 SET-UP ADJUSTMENTS
· When complete readjustment is necessary or a new picture tube is installed, carry out the following adjustments. Unless there are specific instructions to the contrary, carry out these adjustments with the rated power supply. Unless there are specific instructions to the contrary, set the controls and switches to the following settings: Contrast Brightness ............... normal ............... normal Carry out the following adjustments in this order: 3-1. Beam Landing 3-2. Convergence 3-3. Focus 3-4. White balance Note: Test equipment required 1. Color bar/pattern generator. 2. Degausser. 3. Digital multimeter. 4. Oscilloscope.
· ·
3-1. BEAM LANDING
Preparation: 1. 2. In order to reduce the influence of geomagnetism on the set's picture tube, face it in an easterly or westerly direction. Switch on the set's power and degauss with the degausser. Adjustment of Correction Magnet for Y-Splitting Axis Input a crosshatch signal from the pattern generator. Set the Picture control to minimum and confirm that the Brightness control is set to normal. Position the neck assembly as indicated in Fig.3-2. Move the deflection yoke as far forward as is possible. Adjust the upper and lower pin symmetrically by opening or closing the Y-splitting axis correction magnets located on the neck assembly. Return the deflection yoke to its original position. (2) Landing Note :Before carrying out the following adjustments adjust the magnets as indicated below [See Fig.3-3]. 1. Input an all-white signal from the pattern generator. Maximize the picture setting and adjust the Brightness setting. 2. Rough-adjust the focus and horizontal convergence. 3. Loosen the deflection yoke screws and align the purity adjustment knob to its central position. [See Fig.3-1]. 4. Switch from the all-white pattern to an all-green pattern. 5. Move the deflection yoke backwards and adjust with the purity magnet so that the green is at the centre and it aligns symmetrically. [See Fig.3-4]. 6. Move the deflection yoke forward and adjust so that the entire screen becomes green. 7. Switch the raster signal to red, then to blue and verify the landing condition. 8. When the position of the deflection yoke has been determined, fasten the deflection yoke with the screw. 9. If the beam does not land correctly in all the corners of the screen, use magnets to correct it. [See Fig.3-5].
(1)
1. 2. 3. 4. 5.
6.
Y-splitting axis correction magnet
Fig.3-3
Align Pips on each magnet Purity
Neck assy
Caution : High voltages are present on the Deflection yoke terminals take care when handling the Deflection yoke whilst carrying out adjustments.
Deflection yoke Fig.3-1 Align the bottom edge of the neck assy with the G3 hole centre.
Fig.3-2
19
Center dot
GREEN RED BLUE
Fig.3-4 H.STAT convergence control Disk magnets or rotatable disk magnets correct these areas (a-d).
V.STAT vertical static magnet
Purity control corrects this area.
H.STAT VR on mount side
H.STAT convergence
·
Deflection yoke positioning corrects these areas
If the horizontal dots are unable to coincide with the variable range of the H.STAT convergence, adjust together with the V.STAT convergence while tracking. [Adjust the convergence by tilting the V.STAT convergence or by opening and closing the V.STAT convergence.]
(Open)
(Close)
4.
Movement of the red, green and blue dots by tilting the V.STAT magnet and by opening or closing the V.STAT magnet. By opening or closing the V.STAT magnet, the red, green and blue dots move as indicated below.
a). Fig. 3-5
3-2. CONVERGENCE
(1) Screen centre convergence [Static convergence] Input a dot signal from the pattern generator. Normalize the picture setting. [Moving horizontally], adjust the H.STAT control so that the horizontal red, green and blue dots coincide at the centre of the screen. [Moving vertically], adjust the V.STAT magnet so that the vertical red, green and blue dots coincide at the centre of the screen. b).
B G R
B G R
1. 2.
By rotating the V.STAT magnet counter clockwise, the red, green and blue dots move as indicated below.
3.
B
G
R
20
c).
By rotating the V.STAT magnet clockwise, the red, green and blue dots move in the direction indicated below.
HAMP
B
G
R
d).
By opening or closing the V.STAT magnet, the red, green and blue dots move in the direction indicated below.
6.
HTIL correction can be performed by adding a THL correction ASSY to the DY.
R G B
B G R
Note :
If the blue dot does not coincide with the red and green points correct the points by using the BMC [Hexapole] magnet.
5.
Correction for HMC [horizontal mis-convergence] and VMC [vertical mis-convergence] by using the BMC [Hexapole] magnet. HMC correction by BMC [Hexapole] magnet and movement of the electron beam. HTIL TLH correction Assy 4-057-714-01
a).
HMC correction(A) A < B R G B
HMC correction(B) A > B R G B
A = BR G B
A = BR G B
b).
VMC correction by BMC [Hexapole] magnet and movement of the electron beam.
V MC co rre ct io n( A )
V MC c or r ec t ion( B)
C < D R C G D B
C = D R C D G B
C > D R G B
C = D R G B
21
3-3. SCREEN (G2)
LAYOUT OF EACH CONTROL
Purity magnet BMC (Hexaploe) magnet V STAT convergence magnet Y-splitting axis correction magnet
SCREEN G2 ADJUSTMENT
1. 2. 3. 4. Input a dot signal from the pattern generator. Set the Picture, Brightness and Colour to minimum. Apply 175V DC from an external power supply to the R, G and B cathodes of the CRT. Whilst watching the picture, adjust [SCREEN G2] located on the FBT [flyback transformer] to the point just before the flyback return lines disappear.
3-4. FOCUS
1. 2. 3 Receive a television broadcast signal. Normalise the picture setting. Adjust the focus control located on the FBT [flyback transformer] to obtain the best focus at the centre of the screen. Bring only the centre area of the screen into focus, the magenta-ring appears on the screen. In this case, adjust the focus to optimize the screen uniformly.
Fig 3-6 Note : If you are unable to adjust the corner convergence properly, this can be corrected with the use of permalloys.
a
b
a-d: screen-corner convergence defect c d
FOCUS
SCREEN (G2)
Permalloy Assy X-4387-214-1
Convergence adjustment with permalloy.
22
3-5. WHITE BALANCE
WHITE BALANCE ADJUSTMENT
1. 2. 3. 4. 5. 6. 7. Input an all white signal from the pattern generator. Enter into the Service Mode. Enter into the `Picture Adjustment' service menu. Select `Sub contrast' and adjust to 7. Select the `Green drive' and adjust so that the white balance becomes optimum. Select the `Blue drive' and adjust so that the white balance becomes optimum. Press the `TV' button on the remote commander to return to TV operation.
PICTURE ADJUSTMENT
AFC mode REF position SCP BGR SCP BGF Trap fo Sub contrast Sub colour Sub brightness Sub hue Green drive Blue drive Green cutoff Blue cutoff Gamma Pre / overshoot Y delay
1 2 1 1 0 Adj Adj Adj Adj Adj Adj Adj Adj 0 3 3
23
SECTION 4 CIRCUIT ADJUSTMENTS
4-1. ELECTRICAL ADJUSTMENTS
Service adjustments to this model can be performed using the supplied Remote Commander RM-887.
PICTURE ADJUSTMENT
AFC mode
1 3 1 1 9 Adj Adj Adj Adj Adj Adj Adj 0 0 3 ON/OFF ON/OFF ON/OFF
HOW TO ENTER INTO SERVICE MODE
1. 2. Turn on the main power switch and enter into the stand-by mode. Press the following sequence of buttons on the Remote Commander.
REF position SCP BGR SCP BGF Trap fo Sub contrast Sub colour
+
(ON SCREEN DISPLAY)
5
(DIGIT 5)
+
(VOLUME +) (TV)
Sub brightness Green drive Blue drive Green cutoff Blue cutoff
·
`TT--' will appear in the upper right corner of the screen. Other status information will also be displayed. Press `MENU' on the remote commander to obtain the following menu on the screen.
Gamma Pre / overshoot Y delay D Pic D Colour DC Transfer
3.
GEOMETRY ADJUSTMENT - 4:3 TEST MENU V size > Picture Adjustment Geometry Wide IC status MSP Dynamic Convergence Current TV status V position S Correction V Linearity H size H position Pin Amp Pin Phase AFC Bow AFC Angle EHT V Adj Adj Adj Adj Adj Adj Adj Adj Adj Adj 1 0 Adj Adj
4. 5. 6.
Move to the corresponding adjustment using the button on the remote commander. Press the + button to enter the selected adjustment. Turn off the power to quit the service mode when adjustments have been completed.
EHT H Lo Corn Pin Up Corn Pin
WIDE ADJUSTMENT - 4:3
V Aspect V Scroll Upper V Lin Lower V Lin Left Blanking Right Blanking
0 25 0 0 1 11
24
MSP AGC ON/OFF Constant gain CDB FM prescale FMP Zwei mono-st WHI Zwei st-mono WLO Zwei mono-bi WMH Zwei bi-mono WLO Time Zwei WML Fawct limit Fawct soll init FAW Fawer tol Nicam Err Max CCT Nicam Err Min Nicam Prescale NIP Time Nicam Carrier mute CRM Audio clock ACO Scart prescale Scart volume ON 0 36 36 18 36 18 41 10 12 2 10 0 97 31 OFF HIZ 25 64
Dynamic Convergence Range H stat H amp l H amp r Up Y Low Y Y up l Y up r Y low l Y low r Mbow up l Mbow up r Mbow low l Mbow low r V Stat Adj Off - 42 Adj Off - 63 Adj Off - 63 Adj Off - 63 Adj Off - 63 Adj Off - 63 Adj Off - 63 Adj Off - 63 Adj Off - 63 Adj Off - 63 Adj Off - 63 Adj Off - 63 Adj Off - 63 Adj Off - 63 Adj Off - 63
SUB BRIGHTNESS ADJUSTMENT
1. 2. 3. 4. Input a Phillips pattern. Set the picture control to minimum. Enter into the `Picture Adjustment' service menu. Adjust the `Sub-Brightness' data so that there is barely a difference between the 0 IRE and 10 IRE signal levels.
IC STATUS (CXA2076 / CXA2040) CXA2076 H lock IKR VNG X-RAY Colour system CV1 sync CXA2040 Sync sep S1 mode pin S2 mode pin TUNER Tuner status TV STATUS BE3E Text system Dolby DSP Present Text language set Menu language set Destination Ageing Auto Shut Off Size Colour trap sw Velocity mod AFT STATUS Digital RF Attenuation Micro/Jungle C TEXT/C TEXT 2 NO-FX,DX / YES-DS NO-FX,DX / YES-DS WEST/EAST/RUSSIAN WEST/EAST/RUSSIAN B/D/U/K/L/E/A/R OFF/ON OFF/ON 28/32 SECAM/ALL ON/OFF WINDOW/HIGH/LOW ON/OFF ON/OFF SDA30C263/CXA2076 01101011 1 01 01 1 1 0 0 3 1
SUB CONTRAST ADJUSTMENT
1. 2. 3. 4. 5. Input a video that contains a small 100% area on a black background. Set the picture control to maximum. Connect an oscilloscope to Pin 3 of CN301 [A Board]. Enter into the `Picture Adjustment' service menu. Adjust the `Sub-contrast' data to obtain a black to white amplitude of 2.20V.
SUB COLOUR ADJUSTMENT
1. 2. 3. 4. Receive a PAL colour bar video signal. Connect an oscilloscope to Pin 3 of CN301 [A Board]. Enter into the `Picture Adjustment' service menu. Adjust the `Sub-colour' data so that the Cyan, Magenta and Blue colour bars are of equal height as indicated below.
Same Level
B-Out Waveform
Note:
The data indicated in the `TV STATUS' table is dependant on destination, screen size and country.
25
SYSTEM B/G, D/K, I & L I.F ADJUSTMENT
1. 2. 3. 4. Input an off air signal of between 60-100dBuV / 75 ohm terminated, via the tuner socket. Enter into the `IF Adjustment' service mode [i.e `TT59'] to fix the I.F frequency to 39.9MHz. Enter into the service mode and select `Current TV status'. Adjust the I.F coil [LV01] until the `AFT Status' indicates a `Window' condition.
DEFLECTION SYSTEM ADJUSTMENT
1. 2. Enter into the `Geometry Adjustment' service menu. Select and adjust each item in order to obtain the optimum image.
GEOMETRY ADJUSTMENT
SYSTEM L BAND 1 I.F ADJUSTMENT
1. 2. 3. 4. Input an off air signal of between 60-100dBuV / 75 ohm terminated, via the tuner socket. Enter into the `IF Adjustment' service mode [i.e `TT59'] to fix the I.F frequency to 34.2MHz. Enter into the service mode and select `Current TV status'. Adjust the RV02 control until the `AFT Status' indicates a `Window' condition.
V size V position S Correction V Linearity H size H position Pin Amp Pin Phase AFC Bow
Adj Adj Adj Adj Adj Adj Adj Adj Adj Adj 1 0 Adj Adj
STUNER AGC ADJUSTMENT
1. 2. 3. Receive a signal of 63dBuV / 75 ohm terminated, via the tuner socket. Measure the voltage at test point 1 [A Board]. Adjust RV01 control to obtain a voltage of 3.0V +/- 0.3V.
AFC Angle EHT V EHT H Lo Corn Pin Up Corn Pin
V SIZE RV01 RV02
LV01 V LIN
A
TP1 S CORRECTION
TUNER / IF
V CENTRE
H SHIFT
H SIZE
PIN AMP
TILT
CORNER PIN
V ANGLE
26
4-2. `TT' TEST MODE :
`TT' Mode is available by pressing the Test key twice. It is exited by pressing 0 twice, or by pressing the Test key, or by pressing the TV key, or by pressing the TV key, or by switching the set into standby. The functions described below are available by pressing 2 digits:
00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 Cancel Test mode Picture Maximum Picture Minimum Volume & Headphone Volume 35% Volume & Headphone Volume 50% Volume & Headphone Volume 65% Volume & Headphone Volume 80% Ageing mode Enable/Disable Shipping Condition Display TV status No function Sub Picture adjustment Sub Colour adjustment Sub Brightness adjustment Text H-Position adjustment Rotation Test No function No function No function No function No function Destination A/D (East Menu/West Text) Destination L (West Menu/West Text) Destination E (West Menu/West Text) Destination U (West Menu/ West Text) Destination D (East Menu/Greek Text) Destination B (East Menu/West Text) Destination K (East Menu/East Text) Destination R (Russian Menu/Russian Text) No function No function Toggle Auto Shutoff Disable Toggle Bit Error Rate Display Toggle Terminal Debug Mode No function No function No function No function Default Dynamic Convergence Settings No function No function Re-initialize the NVM 73 74 75 76 77 78 79 80 81 82 58 60 61 62 63 64 65 66 67 68 69 70 71 72 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 Re-initialise geometry settings Default Programme info in NVM with factory settings Default favourite pages to 100,101,102 and 103 Switch off all Parental locks No function Default MSP settings Set NVM as Non-virgin Set NVM as virgin No function Dolby Pro-Logic On, Volume 90% Noise On Left Speaker Noise On Right Speaker Only Noise On Centre Speaker Only Noise On Surround Speaker Only Set Colour to Minimum and Picture to Maximum Set Colour and Picture to Minimum and Adjust Sub-Brightness No function N-board Reset Toggle the 3.3v regulator on A2-board Toggle Attenuation switch on Port Expander Smart Link Test- Toggle the Smart Link pin 50 times No function No function No function Pre-set AV Labels No function No function Select Compact Text/Compact Text-2 Balance Left/Right (press key for balance left, for balance right, and for centre balance) Dual Sound Headphones ( key for A, key for B) Dual Sound Speakers ( key for A, key for B) DSP Bypass Dolby Enabled/Disabled toggle Setup trap switch Set Screen Size Wide Setup No function Velocity Mod ON Velocity Mod OFF
27
83 84 85 86 87 88 89 90 91 92 93 94 95 96 97
Special Picture Mode - Personal mode, reset & brightness = 0 Text Interlace odd (Non interlace mode = 3) Text Interlace even (Non interlace mode = 2) Auto Cut Off ENABLE Auto Cut Off DISABLE Diagnostics OFF Diagnostics ON No function Clear & disable OSD Enable OSD D/K Nicam Enable D/K Nicam Disable Reset language select menu on power up Set all programme labels to default Toggle MHEG Mode
4-3. `T' TEST MODE :
`T' Mode is available by pressing the Test key once. It is exited by pressing the Test key twice, or by pressing the TV key, or by switching the set into standby. The functions described below are available by pressing the indicated key :
Key Volume + Volume Picture + Picture Colour + Colour Brightness + Brightness Hue + Hue Sharpness + Sharpness Balance Left Balance Right Treble + Treble Bass + Bass Analogue + Analogue -
T Mode Function Volume Maximum Volume Minimum Picture Maximum Picture Minimum Colour Maximum Colour Minimum Brightness Maximum Brightness Minimum Hue Maximum Hue Minimum Sharpness Maximum Sharpness Minimum Balance Full Left Balance Full Right Treble Maximum Treble Minimum Bass Maximum Bass Minimum Select Analogue Value Maximum Select Analogue Value Minimum
28
WAVEFORMS A BOARD
1 2 3
1.0 Vp-p (H) 4 5
1.3 Vp-p (H) 6
1.1 Vp-p (H)
1.1 Vp-p (H) 7
1.0 Vp-p (H)
1.2 Vp-p (V)
187 mVp-p (H)
WAVEFORMS C BOARD
1 2 3
143 Vp-p (H)
139 Vp-p (H)
128 Vp-p (H)
WAVEFORMS VM BOARD
1
7.3 Vp-p (H)
WAVEFORMS D BOARD
1 2 3
51 Vp-p (V) 4
2.7 Vp-p (H)
12 Vp-p (H)
51 Vp-p (H)
5-4. SEMICONDUCTORS
CXA2040Q-T4 M24C332-MW6T SE135N TDA7264
3 1
(TOP VIEW)
2
1 V OUT 2 V IN 3 GND
1
8
TDA8395T STR-S6709 MSP3400D-PS-B4-T MSP3410D-PS-B4-T CXA8070P
10 9 1 68 61
1 10 20 11
60
( TOP VIEW )
18
52
TLP721(D4-)
1 9
1 4
26 27 35
( TOP VIEW )
44 43
STV9379
2
3
LM393P M5216P TDA2822M TNY253P µPC393C
8 7 6 5
PST593C-MMP-4P
4
3
1 3 2 5 4 7 6
2SA733-K 2SA933AS 2SA933S 2SA1091-O 2SC3502-EF 2SC3601-E 2SC2808STP-R
1
2
3
4
2 1 ( TOP VIEW )
TDA4665T-T
16 9
( TOP VIEW )
SBX1981-51
E C B
LM2940CT-5.0 LM2940CT LM2940T-9.0 MCT7809CT NJM78M09FA µPC2405HF SDA5273M-CP-GEG SDA3OC263-GEG
60 61 41 40
1
( TOP VIEW )
8
TDA6101Q/N3
DTA144ES DTC114ES DTC143TS DTC144ESA 2SC1740S-RT
80
21 1
( TOP VIEW )
IN GND
OUT
20
1
30 9
E C B
69
DTC144EKA 2SA1037K 2SA1162-G 2SC2412K
C
2SC4927-01
FMS-3FU
E B
B C E
IRF620
1 2
3
B C E
2SC2785-HFE
EG-1Z-V1 EGP20G EL1Z EM1-V1 EU-1-V1 EU2A EU2-V1 FML-G12S GP08D
HSS83TD RGP10GPKG23 RGP15GPKG23
1
2
3
CATHODE
ERA38-06TP1 HZS9.INB2 MTZJ-3.6A MTZJ-5.1B MTZJ-5.6B MTZJ-6.8C MTZJ-9.1 MTZJ-T-77-9.1A MTZJ-77-22B
CATHODE
RD3.9ESB2 RD5.1ESB2 RD5.6ESB2 RD6.8ESB2 RD10ESB2 RD15ES-B2 RD39ES-B2 1SS133T-77
E
C
B
ANODE
2SA1837 MA8330 1SS355TE-17 UDZ-TE-17-5.6B HDZ-TE-17-6.8B UDZ-TE-17-9.1B
BAS216 DTZ6.8C DTZ9.1 DTZ33B RD5.65-B
B
ANODE
MA3030-H (TX)
C E ANODE
3
2SC2688-LK 2SC3840(3)
CATHODE
1 2
NC
2
3
1
D4SB60L
SLA-570KT3F
E C B
2SC4793
CATHODE ANODE
B
C
E
70
5-5. IC BLOCK DIAGRAMS (1)
A BOARD IC301 CXA2076Q-TL
56 48 51 50 49 54 52 45 46 47 40 41 38 39 36 H SYNC SEP V SYNC SEP 32fH VCO GATE PHASE DET PHASE DET PHASE SHIFT SAND CASTLE 53
S SEP
44 42 H.DRIVE 37 10 30 34 35 WIDE Sawtooth Gen. WIDE Parabola Gen.
1/32
55 57
VIDEO SW
SUB CONT
TRAP
DL
SHARP NESS
DC TRAN CLP
D PIC
50/60 ID
ACC
TOT INTERLACE
GATE
Count Down 525/625
32 31
ACC DET
KILLER DET
33
59 20 2 9 I REF VCO APC PAL/ NTSC HUE DEM AXIS PAL ID fsc ID
DEM
Y/C MIX
YS SW
YS/YM SW
OSD PIC MIX
DCOL y
GB BRT DRV HV COMP ABL
CUT BLK OFF
22 24 26
COLOR &AXIS 3 4 5 6 7 8
CLP CLP 11 12 13 14 15 16 17 18 19
DIG
AKB
27
43
60
62 61
64
1
29
28
21 23 25
A BOARD IC201 CXA2040AQ
48 51 50 49 49
I2C BUS DECODER
22
A BOARD IC202 MSP3410D
65 3 68 1 5 4 7 6 23
SYNC SEP
CV1 CV2 CV3 CV4 CV5 CV6 CV7
CV1
SW1
17
25 SBUS Interface I2C Interface
CV2
25 23
DEMODULATOR
27 D/A D/A 56 57 29
CV3
CV4
CV1 CV2 CV3 CV4 CV5 CV6 CV7
SW2
15
IDENT 28 31 30 34 33 37 36 A/D A/D D/A D/A 47 48 50
31
CV5
DFP
D/A D/A
59 60 1
CV1 CV2 CV3 CV4 CV5 CV6 CV7
+
CV6
SW3
13
3
CV7
5
+ SW4
11
SCART Switching Facilities
51
7
SW5
32 Regulator
9
71
5-5. IC BLOCK DIAGRAMS (2)
A BOARD IC4 PST593C
Vcc
3
+ -
OSC
T DELAY R
Q
V out
1
4
GND Reset
2
D BOARD IC500 STV9379
2 8 6 FLYBACK GENERATOR
1 7
POWER AMP
-
5 THERMAL PROTECTION
+
4
D BOARD IC600 STR-S6709
9
START UP
OVP LATCH PROPORTIONAL DRIVE
5
PRE REG
4
OSC
3 1
REF
THERMAL
2
6
7
8
72
SECTION 6 EXPLODED VIEWS
NOTE :
· Items with no part number and no description are not · stocked because they are seldom required for routine service. The construction parts of an assembled part are indicated with a collation number in the remarks column. Items marked " * " are not stocked since they are seldom required for routine service. Some delay should be anticipated when ordering these items. 14 19
·
6-1. CHASSIS
12
13 17 14 15 11 16 10 9 8 7
18
6
1 2 17 3
4
5
KV-32FX20U only
18
REF. NO. 1 2 3 4 5 6 7 8 9 10 £
PART.NO *A-1646-183-A 1-571-433-21 *4-204-752-01 *A-1640-350-A *4-202-531-01 1-783-083-11 1-776-204-12 X-4560-158-1 *A-1642-252-A *A-1642-251-A 1-693-338-11 1-693-340-11 1-693-339-11
DESCRIPTION
REMARK
REF. NO. 11
PART.NO *A-1632-848-A *A-1632-847-A *A-1632-846-A *A-1632-849-A *A-1632-850-A *A-1674-139-A *4-204-776-11 4-039-358-01 1-529-417-11 4-204-775-11 4-384-096-01 1-529-408-11 4-204-735-01
DESCRIPTION
REMARK
£ £ £
H BOARD, COMPLETE SWITCH, PUSH (AC POWER) BRACKET, MAIN D1 BOARD, COMPLETE AC CORD LOCK (SC) CORD POWER (WITH NOISE FILTER) (KV-32FX20A/32FX20B/32FX20D/32FX20E) CORD POWER (FILTER) (KV-32FX20U) TRANSFORMER ASSY, FLYBACK (NX-4404//U2B4) D BOARD, COMPLETE D2 BOARD, COMPLETE TUNER/VIF (AEP)(KV-32FX20A/32FX20D/ KV-32FX20E) TUNER/VIF (FR) (KV-32FX20B) TUNER/VIF (UK) (KV-32FX20U) 73
12 13 14 15 16 17 18 19
A BOARD, COMPLETE (KV-32FX20A) A BOARD, COMPLETE (KV-32FX20B) A BOARD, COMPLETE (KV-32FX20D) A BOARD, COMPLETE (KV-32FX20E) A BOARD, COMPLETE (KV-32FX20U) SP BLOCK ASSY 13-16 BOX, WOOFER SCREW (4x16), (+) BV TAPPING SPEAKER (8CM) BAFFLE WOOFER SCREW (4x16), TAPPING + P SPEAKER 4.2x24CM COVER, REAR
6-2. PICTURE TUBE
70 69 75 76 77 78 79 74 72 71 69
73 51 65 64 63 62 66 67 68
61 59 52 55
60
53
54
56
57
58
REF. NO. 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65
PART.NO X-4200-488-1 4-045-250-01 4-204-731-11 4-202-555-01 4-042-192-11 4-204-730-11 4-204-728-01 4-202-964-11 4-204-729-01 4-203-128-41 8-735-054-05 1-451-480-11 1-452-896-11 8-453-011-11 *A-1644-098-A
DESCRIPTION
REMARK
REF. NO. 66 67 68 69 70 71 72 73 74 75 76 77 78 79 74
PART.NO *A-1638-126-A 4-200-433-01 1-416-769-11 *4-392-534-31 *4-059-569-01 4-202-554-01 1-251-807-11 3-704-495-01 4-204-225-01 4-308-870-00 1-452-094-00 1-425-032-00 X-4387-214-1 3-701-007-00
DESCRIPTION
REMARK
£ £ £
BEZNET ASSY 55-59 DAMPER DOOR SHAFT DOOR CATCHER, PUSH WINDOW ORNAMENTAL BUTTON, POWER SPRING GUIDE LIGHT SHEET, BLOTTING PICTURE TUBE (W76LLZ060X) (SD-302) DEFLECTION YOKE (Y32RVC2) COIL, NA ROTATION (RT200) NECK ASSY, NA299-M VM BOARD, COMPLETE
£
£
C BOARD, COMPLETE SPRING, EXTENSION COIL, DEMAGNETIC CUSHION DGC HOLDER, DGC HOLDER, HV CABLE CAP ASSY, HIGH VOLTAGE SPACER, DY PT-SCREW CLIP, LEAD WIRE MAGNET, ROTATABLE DISK; 15MM Ø MAGNET,DISK; 10MM Ø PERMALLOY ASSY, CORRECTION BAND, BINDING
SECTION 7 ELECTRICAL PARTS LIST
PARTS LISTING TABLE OF CONTENTS Page A BOARD COMMON Parts List : A BOARD VARIANT Parts List : Model KV-32FX20A/32FX20B/ KV-32FX20D/32FX20E KV-32FX20U C BOARD COMPLETE Parts List : D1 BOARD COMPLETE Parts List : D2 BOARD COMPLETE Parts List : D BOARD COMPLETE Parts List : VM BOARD COMPLETE Parts List : H BOARD COMPLETE Parts List : MISCELLANEOUS : ................................................................................................... 82 ................................................................................................... 82 ................................................................................................... 82 Parts common to all models listed in this manual Parts that belong only to the model specified ............................... 76
................................................................................................... 83 ................................................................................................... 85
................................................................................................... 86 ................................................................................................... 90 ................................................................................................... 92 ................................................................................................... 93
ACCESSORIES AND PACKAGING MATERIALS :................................................................................................... 93
Note : Refer to the designated variant parts list when seeking a part indicated by an asterisk (*) Parts indicated (#) on the Schematic Diagram are not used in this model and therefore do not appear in the Parts List.
75
A
REF. NO. PART.NO DESCRIPTION
A Board, Complete A Board, Complete A Board, Complete A Board, Complete A Board, Complete
The components identified by shading and marked are critical for safety Replace only with the part number specified.
REMARK
(KV-32FX20A) (KV-32FX20B) (KV-32FX20D) (KV-32FX20E) (KV-32FX20U)
REF. NO. C204 C205 C207 C208 C211 C212 C213 C214 C215 C216 C217 C218 C219 C220 C221 C222 C223 C224 C225 C226 C227 C228 C229 C230 C233 C238 C239 C240 C244 C251 C252 C253 C254 C255 C256 C257 C258 C259 C260 C261 C262 C263 C264 C265 C266 C267 C268 76
PART.NO 1-163-038-91 1-126-965-11 1-126-964-11 1-126-964-11 1-126-964-11 1-164-346-11 1-163-133-00 1-164-346-11 1-163-133-00 1-104-664-11 1-163-021-91 1-104-664-11 1-163-021-91 1-126-964-11 1-164-505-11 1-164-346-11 1-163-133-00 1-164-346-11 1-163-133-00 1-104-664-11 1-163-021-91 1-104-664-11 1-163-021-91 1-126-961-91 1-104-664-11 1-104-664-11 1-163-141-00 1-126-964-11 1-164-505-11 1-163-087-00 1-163-087-00 1-163-117-00 1-163-109-00 1-163-117-00 1-163-038-91 1-126-965-11 1-126-964-11 1-164-005-11 1-163-038-91 1-163-133-00 1-163-133-00 1-163-038-91 1-126-963-11 1-126-964-11 1-126-964-11
DESCRIPTION CERAMIC CHIP 0.1MF ELECT 22MF ELECT 10MF ELECT 10MF ELECT 10MF CERAMIC CERAMIC CERAMIC CERAMIC ELECT CHIP CHIP CHIP CHIP 1MF 470PF 1MF 470PF 47MF 20% 20% 20% 20% 5% 5% 20% 10% 20% 10% 20%
REMARK 25V 50V 50V 50V 50V 16V 50V 16V 50V 16V 50V 16V 50V 50V 16V 16V 50V 16V 50V 16V 50V 16V 50V 50V 16V
*A-1632-848-A *A-1632-847-A *A-1632-846-A *A-1632-849-A *A-1632-850-A
A Board Common Parts
1-750-797-11 SOCKET, PLCC 4-352-844-01 PIN, LEAD, COATING < CAPACITOR > C1 C2 C3 C4 C8 C10 C15 C18 C19 C20 C21 C22 C24 C45 C80 C81 C82 C90 C101 C102 C103 C104 C110 C112 C113 C120 C121 C122 C123 C124 C125 C144 C201 C202 C203 1-163-038-91 1-104-664-11 1-163-104-00 1-163-104-00 1-163-038-91 1-216-073-00 1-163-021-91 1-163-038-91 1-163-017-00 1-163-021-91 1-163-021-91 1-163-117-00 1-163-141-00 1-163-038-91 1-163-117-00 1-126-959-11 1-163-037-11 1-163-038-91 1-163-038-91 1-126-934-11 1-126-965-11 1-163-117-00 1-104-664-11 1-163-141-00 1-104-664-11 1-163-117-00 1-163-113-00 1-163-137-00 1-163-113-00 1-163-038-91 1-163-141-00 1-163-038-91 1-164-004-11 1-164-004-11 1-104-661-91 CERAMIC ELECT CERAMIC CERAMIC CERAMIC CHIP 0.1MF 47MF CHIP 30PF CHIP 30PF CHIP 0.1MF 10K 0.01MF 0.1MF 0.0047MF 0.01MF 0.01MF 100PF 0.001MF 0.1MF 100PF 20% 5% 5% 5% 10% 10% 10% 10% 5% 5% 5% 20% 10% 20% 20% 5% 20% 5% 20% 5% 5% 5% 5% 5% 10% 10% 20% 25V 16V 50V 50V 25V 1/10W 50V 25V 50V 50V 50V 50V 50V 25V 50V 50V 50V 25V 25V 16V 50V 50V 16V 50V 16V 50V 50V 50V 50V 25V 50V 25V 25V 25V 16V
CERAMIC CHIP 0.01MF ELECT 47MF CERAMIC CHIP 0.01MF ELECT 10MF CERAMIC CHIP 2.2MF CERAMIC CERAMIC CERAMIC CERAMIC ELECT CHIP CHIP CHIP CHIP 1MF 470PF 1MF 470PF 47MF
5% 5% 20% 10% 20% 10% 20% 20% 20% 5% 20