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TV repair

SONY AE4 chassis

CHASSIS - TV  - MODEL

    

   
 

 

Model: AE4, KV-25C3A, KV-25C3B, KV-25C3D, KV-25C3E, ...

Subject: NO POWER.(IC1003)

Symptom: No power, no errorcode.

Cause: IC1003 is defect.(memory ic)

Remedy: Change this memory ic and reload data with the TRACE system. Check always the PSU separatly before

changing this memory ic

Model: AE4, KV-25C3A, KV-25C3B, KV-25C3D, KV-25C3E, ...

Subject: DIGITAL EFFECT IN PICTURE.(IC1814)

Symptom: Digital effect

Cause: IC 1814 on the B board is defect.

Remedy: Change this IC.

Model: AE4, KV-25C3A, KV-25C3B, KV-25C3D, KV-25C3E, ...

Subject: NO POWER.(Q618)

Symptom: No power.(PSU is OK)

Cause: Q618 is leaking.

Remedy: Change this transistor

Model: AE4, KV-25C3A, KV-25C3B, KV-25C3D, KV-25C3E, ...

Subject: INTERMITTENT NO POWER.

Symptom: Intermittent no power.

Cause: X 401 (H-oscillator)

Remedy: Change X 401 Sometimes X401 doesn't oscillate anymore and no H-out pulses are built up. Sometimes X 401

oscillates at a wrong frequency and hence the PSU and H out transistor can

Model: AE4, KV-25C3A, KV-25C3B, KV-25C3D, KV-25C3E, ...

Subject: NO POWER, Q802 SHORT.(X401)

Symptom: No power,Q802 short.

Remedy: Change the following partSymptom :Q601,Q602,Q615,R601 on the G-board IC403,X401 on the B-board and

Q802(also spacer) on the D-board. Check also R602,R603,R605,R606. For correct partnumbers, check SM please

Model: AE4, KV-25C3A, KV-25C3B, KV-25C3D, KV-25C3E, ...

Subject: NO POWER, TV GOES ON AND OFF, VERTICAL DEFLECTION

Symptom: No power, TV goes on and off,vertical deflection not correct.

Cause: IC802 is defect.

Remedy: Change this IC and also his fusable resistors R819, R818.

Model: AE4, KV-25C3A, KV-25C3B, KV-25C3D, KV-25C3E, ...

Subject: NO POWER.(RY602)

Symptom: No power, relais is sensative.

Cause: RY602.(relais AC Power)

Remedy: Change RY602.(relais AC Power)

Model: AE4, KV-25C3A, KV-25C3B, KV-25C3D, KV-25C3E, ...

Subject: DOUBLE PICTURE.(IC1802,IC1803)

Symptom: Double picture.

Cause: Bad contacts at IC1802 and IC1803.

Remedy: Resolder both IC's.

Model: AE4

Subject: PICTURE IS PARTLY MUTED.(DATALOSS)

Symptom: Picture is partly muted.

Cause: Dataloss.

Remedy: Change NVM and reload data with the TRACE system.

Model: AE4, KV-25C3A, KV-25C3B, KV-25C3D, KV-25C3E, ...

Subject: VERTICAL UNSTABEL PICTURE.(IC403)

Symptom: Vertical unstabel picture.

Cause: IC 403 is defect.

Remedy: Change this IC.

Model: AE4, KV-25C3A, KV-25C3B, KV-25C3D, KV-25C3E, ...

Subject: BAD SOUND, STATIC NOISE, HISS,...

Symptom: Bad sound, static noise,hiss,...

Cause: IC 201 is defect.

Remedy: Change this IC. For correct partnumber of IC 201 please verify SM, depending of the destination.

Model: AE4, KV-25C3A, KV-25C3B, KV-25C3D, KV-25C3E, ...

Subject: NO PIN CORRECTION.(Q803)

Symptom: No pin correction.

Cause: Q803 is defect.

Remedy: Change this IC.

Model: AE4, KV-25C3A, KV-25C3B, KV-25C3D, KV-25C3E, ...

Subject: PICTURE TOO DARK, CHROMA OK.(CN1810)

Symptom: Picture too dark, chroma OK.

Cause: CN 1810 has one white lead, the rest are grey. This white lead a bad connection.

Remedy: Remove the white lead and thighten the connection again. Put the white lead again in the connector. Use of the

Model: AE4, KV-25C3A, KV-25C3B, KV-25C3D, KV-25C3E, ...

Subject: BUZZ NOISE(T602).

Symptom: T602 makes buzz noise.

Cause: T602

Remedy: Change T602

Model: AE4, KV-25C3A, KV-25C3B, KV-25C3D, KV-25C3E, ...

Subject: PICTURE OUT OF SYNC.(X1801)

Symptom: No sync

Cause: X1801 is unstabel.

Remedy: Change this cristal.

Model: AE4, KV-25C3A, KV-25C3B, KV-25C3D, KV-25C3E, ...

Subject: NO POWER FROM THE POWER SUPPLY.(IC602)

Symptom: No power from power supply.

Cause: IC602 is defect.(photo coupler)

Remedy: Change IC602.(photo coupler)

Model: AE4, KV-25C3A, KV-25C3B, KV-25C3D, KV-25C3E, ...

Subject: GREEN BORDER AT THE UPPER SIDE OF THE SCREEN.(DATA

Symptom: Green border at upper side of the screen.

Cause: Data loss.

Remedy: Reinstall data with our TRACE system.

Model: AE4, KV-25C3A, KV-25C3B, KV-25C3D, KV-25C3E, ...

Subject: PICTURE, OSD AND TXT ARE OUT OF SYNC.(DATALOSS)

Symptom: Picture, OSD and TXT out of sync.

Cause: Data loss

Remedy: Reinstall data with our TRACE system.

Model: AE4, KV-25C3A, KV-25C3B, KV-25C3D, KV-25C3E, ...

Subject: NO POWER, PSU OK.(Q618)

Symptom: No power,PSU is OK.

Cause: Q 618 is defect.

Remedy: Change Q 618 During production, several soft start circuits have been used. Verify also SB TV06497.

Model: AE4, KV-25C3A, KV-25C3B, KV-25C3D, KV-25C3E, ...

Subject: AFTER A WHILE COLOUR STREAKING IN PICTURE. (IC1808

Symptom: After a while colour streaking in picture.

Cause: IC1808 is defect.

Remedy: Change this IC (SAA4990H-V2)

Model: AE4, KV-25C3A, KV-25C3B, KV-25C3D, KV-25C3E, ...

Subject: NO POWER.(R676 OR R677)

Symptom: No power

Cause: R676 or R677 is open.

Remedy: Change the defect resistor.

Model: AE4, KV-25C3A, KV-25C3B, KV-25C3D, KV-25C3E, ...

Subject: NO POWER FROM THE POWER SUPPLY.(IC603)

Symptom: No power from power supply.

Cause: IC603 is defect.

Remedy: Change this regulator.

Model: AE4, KV-25C3A, KV-25C3B, KV-25C3D, KV-25C3E, ...

Subject: NO PICTURE(IC101)

Symptom: No picture

Cause: Input selector is defect.

Remedy: Change IC 101

Model: AE4, KV-25C3A, KV-25C3B, KV-25C3D, KV-25C3E, ...

Subject: PICTURE MENU AND OSD ARE OUT OF SYNC.

Symptom: Picture, menu and OSD are out of sync.

Cause: CXD8626Q is short between pin 34/35.

Remedy: Remove this shortage.

Model: AE4, KV-25C3A, KV-25C3B, KV-25C3D, KV-25C3E, ...

Subject: NO PIP, ONLY PROGRAM INDICATION FROM PIP.(IC1403).

Symptom: No PIP, only program indication from PIP.

Cause: IC1403 is defect.

Remedy: Change this IC.

Model: AE4, KV-25C3A, KV-25C3B, KV-25C3D, KV-25C3E, ...

Subject: INTERMITTENT NO PICTURE,NO OSD, NO TXT.

Symptom: Intermittent no picture, no OSD,no TXT.

Cause: IC 403.

Remedy: Change this deflection processor and also the crystal.

Model: AE4, KV-25C3A, KV-25C3B, KV-25C3D, KV-25C3E, ...

Subject: PICTURE POMPING.(C457)

Symptom: Picture pumping.

Cause: C457 is defect.

Remedy: Change C457.

Model: AE4, KV-25C3A, KV-25C3B, KV-25C3D, KV-25C3E, ...

Subject: VERTICAL POSITION OF THE PICTURE IS WRONG, COLOUR

Symptom: Vertical position of picture is wrong, colour noise.

Cause: IC1816 is defect.

Remedy: Change this IC1816.

Model: AE4, KV-25C3A, KV-25C3B, KV-25C3D, KV-25C3E, ...

Subject: NO POWER BECAUSE OF A BAD FLYBACK CONNECTION.(FBT)

Symptom: No power because of bad flyback connection.

Cause: Bad connection in flyback cable

Remedy: Change this flyback. Due to this bad connection the PSU can also be damaged.

Model: AE4, KV-25C3A, KV-25C3B, KV-25C3D, KV-25C3E, ...

Subject: NO POWER, NOISY POWER SUPPLY, LIGHTENING!(C609)

Symptom: No power, noisy power supply, lightening!

Cause: C 609 value has changed.

Remedy: Change this capacitor and check also the other components of the PSU.

Model: AE4, KV-25C3A, KV-25C3B, KV-25C3D, KV-25C3E, ...

Subject: NO POWER, NO ERRORCODE.(IC802,R818,R819)

Symptom: No power, no errorcode.

Cause: IC 802( vertical amplifyer) is defect.

Remedy: Change this IC and preventive also the fusable resistors R818 and R819.

Model: AE4, KV-25C3A, KV-25C3B, KV-25C3D, KV-25C3E, ...

Subject: RINGING IN THE PICTURE.(C814)

Symptom: Ringing in picture.

Cause: C814 defect.

Remedy: Change this capacitor.

Model: AE4, KV-25C3A, KV-25C3B, KV-25C3D, KV-25C3E, ...

Subject: H SIZE CHANGES.(C866)

Symptom: H size changes.

Cause: C866 is defect.

Remedy: Change this component.

Model: AE4, KV-25C3A, KV-25C3B, KV-25C3D, KV-25C3E, ...

Subject: PIN DISTORTION (L802)

Symptom: Pin distortion.

Cause: L 802 is open.

Remedy: Change this component.

Model: AE4, KV-25C3A, KV-25C3B, KV-25C3D, KV-25C3E, ...

Subject: PICTURE IS TOO LARGE.(D819).

Symptom: Picture is too large.

Cause: D819 is leaking.

Remedy: Change this diode.

Model: AE4, KV-25C3A, KV-25C3B, KV-25C3D, KV-25C3E, ...

Subject: NO POWER( H OUT AND PSU ARE DEFECT)

Symptom: No power.(H out and PSU defect)

Cause: R 808 has a bad contact.

Remedy: Change defective components and resolder R 808.

Model: AE4, KV-25C3A, KV-25C3B, KV-25C3D, KV-25C3E, ...

Subject: VERTICAL BARS IN THE PICTURE.(IC1809)

Symptom: Vertical bars in the picture.

Cause: IC1809 (D/A convertor) is defect.

Remedy: Change this IC.

Model: AE4, KV-25C3A, KV-25C3B, KV-25C3D, KV-25C3E, ...

Subject: NO POWER (PSU DEFECT)

Symptom: No power( PSU defect)

Cause: C 607 is short.

Remedy: Change C 607 and the other defective components.(Q601,Q602,Q615)

Model: AE4, KV-25C3A, KV-25C3B, KV-25C3D, KV-25C3E, ...

Subject: NO I.R. RESPONSE AFTER THE FIRST COMMAND.(IC1002)

Symptom: No I.R response after the first command.

Cause: IC1002 is defect.(system software.)

Remedy: Change the system software.

Model: AE4, KV-25C3A, KV-25C3B, KV-25C3D, KV-25C3E, ...

Subject: NO POWER, THE SET SMELLS.

Symptom: No power.( The set smells.)

Cause: R 863 touches heatsink of IC 802.

Remedy: Change the fusable resistors of the vertical amplifyer and disconnect R 863 with heatsink.

Model: AE4, KV-25C3A, KV-25C3B, KV-25C3D, KV-25C3E, ...

Subject: FLICKERING PICTURE (IC606)

Symptom: Flickering picture.

Cause: IC 606 is defect.

Remedy: Change this regulator.

Model: AE4

Subject: No operation, set switches into standby mode, no p

Symptom: No operation, set switches into standby mode, no picture, .

Cause: NVM datacorruption or NVM defect

Remedy: Replace the NVM IC (IC1003) on A board or just reset the NVM or reload data from a similar

Model: AE4

Subject: No picture, no synchronisation, no operation

Symptom: No picture, no synchronisation, no operation

Cause: IC1814 or IC1816 defect

Remedy: Replace IC1814 or IC1816 on B board

Model: AE4

Subject: No power,Q802 short.

Symptom: No power,Q802 short.

Remedy: Change the following partSymptom :Q601,Q602,Q615,R601 on the G-board IC403,X401 on the B-board and

Q802(also spacer) on the D-board. Check also R602,R603,R605,R606. Part(s): ()

Model: AE4

Subject: No power, TV goes on and off,vertical deflection n

Symptom: No power, TV goes on and off,vertical deflection not correct.

Cause: IC802 is defect.

Remedy: Change this IC and also his fusable resistors R819, R818. Part(s): 8-759-192-71 (IC 802) 1-249-377-11 (R 818)

1-249-377-11 (R 819)

Model: AE4

Subject: No power, relais is sensative.

Symptom: No power, relais is sensative.

Cause: RY602.(relais AC Power)

Remedy: Change RY602.(relais AC Power) Part(s): 1-755-167-11 (RY602)

Model: AE4

Subject: Double picture.

Symptom: Double picture.

Cause: Bad contacts at IC1802 and IC1803.

Remedy: Resolder both IC's. Part(s): 8-759-439-63 (IC1802) 8-759-439-27 (IC1803

Model: AE4

Subject: Picture is partly muted.

Symptom: Picture is partly muted.

Cause: Dataloss.

Remedy: Change NVM and reload data with our TRACE system. Part(s): 8-759-378-21 (IC1003)

Model: AE4

Subject: Vertical unstabel picture.

Symptom: Vertical unstabel picture.

Cause: IC 403 is defect.

Remedy: Change this IC. Part(s): 8-759-421-42 (IC 403)

Model: AE4

Subject: Bad sound, static noise,hiss,...

Symptom: Bad sound, static noise,hiss,...

Cause: IC 201 is defect.

Remedy: Change this IC. Part(s): (IC201)

Model: AE4

Subject: No power, no error codes.

Symptom: No power, no error codes.

Cause: IC 1002 is defect.

Remedy: Change this IC by latest version. Part(s): ()

Model: AE4

Subject: No pin correction.

Symptom: No pin correction.

Cause: Q803 is defect.

Remedy: Change this IC. Part(s): 8-729-039-68 (Q 803)

Model: AE4

Subject: Picture too dark, chroma OK.

Symptom: Picture too dark, chroma OK.

Cause: CN 1810 has one white lead, the rest are grey. This white lead a bad connection.

Remedy: Remove the white lead and thighten the connection again. Put the white lead again in the connector. Part(s):

Model: AE4

Subject: T602 makes buzz noise.

Symptom: T602 makes buzz noise.

Cause: T602

Remedy: Change T602 Part(s): 1-427-254-11 (T602)

Model: AE4

Subject: No sync

Symptom: No sync

Cause: X1801 is unstabel.

Remedy: Change this cristal. Part(s): 1-579-175-11 (X1801)

Model: AE4

Subject: No power from power supply.

Symptom: No power from power supply.

Cause: IC602 is defect.(photo coupler)

Remedy: Change IC602.(photo coupler) Part(s): 874901064 (IC602)

Model: AE4

Subject: Green border at upper side of the screen.

Symptom: Green border at upper side of the screen.

Cause: Data loss.

Remedy: Reinstall data with our TRACE system. Part(s): ()

Model: AE4

Subject: Picture, OSD and TXT out of sync.

Symptom: Picture, OSD and TXT out of sync.

Cause: Data loss

Remedy: Reinstall data with our TRACE system. Part(s): ()

Model: AE4

Subject: No power,PSU is OK.

Symptom: No power,PSU is OK.

Cause: Q 618 is defect.

Remedy: Change Q 618 Part(s): use SM (Q618)

Model: AE4

Subject: After a while colour streaking in picture.

Symptom: After a while colour streaking in picture.

Cause: IC1808 is defect.

Remedy: Change this IC (SAA4990H-V2) Part(s): 8-759-439-62 (IC1808)

Model: AE4

Subject: No power

Symptom: No power

Cause: R676 or R677 is open.

Remedy: Change the defect resistor. Part(s): 1-249-437-11 (R676) 1-249-437-11 (R677

Model: AE4

Subject: No power from power supply.

Symptom: No power from power supply.

Cause: IC603 is defect.

Remedy: Change this regulator. Part(s): 8-759-510-52 (IC603)

Model: AE4

Subject: No picture

Symptom: No picture

Cause: Input selector is defect.

Remedy: Change IC 101 Part(s): 8-752-069-53 (IC101)

Model: AE4

Subject: Picture, menu and OSD are out of sync.

Symptom: Picture, menu and OSD are out of sync.

Cause: CXD8626Q is short between pin 34/35.

Remedy: Remove this shortage. Part(s): (IC1803)

Model: AE4

Subject: No PIP, only program indication from PIP.

Symptom: No PIP, only program indication from PIP.

Cause: IC1403 is defect.

Remedy: Change this IC. Part(s): 8-759-438-61 (IC1403)

Model: AE4

Subject: No picture, no OSD,no TXT.

Symptom: No picture, no OSD,no TXT.

Cause: IC 403.

Remedy: Change this deflection processor and also the crystal. Part(s): 8-759-421-42 (IC403) 1-767-343-21 (X401

Model: AE4

Subject: Picture pumping.

Symptom: Picture pumping.

Cause: C457 is defect.

Remedy: Change C457. Part(s): 1-164-232-11 (C457)

Model: AE4

Subject: Vertical position of picture is wrong, colour nois

Symptom: Vertical position of picture is wrong, colour noise.

Cause: IC1816 is defect.

Remedy: Change this IC1816. Part(s): Check SM (IC1816)

Model: AE4

Subject: No power because of bad flyback connection.

Symptom: No power because of bad flyback connection.

Cause: Bad connection in flyback cable

Remedy: Change this flyback cable. Part(s): Check SM (T805)

Model: AE4

Subject: No power, noisy power supply.

Symptom: No power, noisy power supply.

Cause: C 609 value has changed.

Remedy: Change this capacitor. Part(s): 1-129-718-00 (C609)

Model: AE4

Subject: No power, no errorcode.

Symptom: No power, no errorcode.

Cause: IC 802( vertical amplifyer) is defect.

Remedy: Change this IC and preventive also the fusable resistors R818 and R819. Part(s): 8-759-192-71 (IC802) 1-249-

443-11 (R818) 1-249-443-11 (R819)

Model: AE4

Subject: Ringing in picture.

Symptom: Ringing in picture.

Cause: C814 defect.

Remedy: Change this capacitor. Part(s): Check SM (C814)

Model: AE4

Subject: H size changes.

Symptom: H size changes.

Cause: C866 is defect.

Remedy: Change this component. Part(s): 1-137-040-11 (C866)

Model: AE4

Subject: Pin distortion.

Symptom: Pin distortion.

Cause: L 802 is open.

Remedy: Change this component. Part(s): Check SM (L 802)

Model: AE4

Subject: Picture is too large.

Symptom: Picture is too large.

Cause: D819 is leaking.

Remedy: Change this diode. Part(s): 8-719-911-19 (D819)

Model: AE4

Subject: No power.(H out and PSU defect)

Symptom: No power.(H out and PSU defect)

Cause: R 808 has a bad contact.

Remedy: Change defective components and resolder R 808. Part(s): 1-216-381-11 (R 808)

Model: AE4

Subject: Vertical bars in the picture.

Symptom: Vertical bars in the picture.

Cause: IC1809 (D/A convertor) is defect.

Remedy: Change this IC. Part(s): 8-759-467-19 (IC1809)

Model: AE4

Subject: No power( PSU defect)

Symptom: No power( PSU defect)

Cause: C 607 is short.

Remedy: Change C 607 and the other defective components.(Q601,Q602,Q615) Part(s): 1-137-399-11 (C 607)

Model: AE4

Subject: No I.R response after the first command.

Symptom: No I.R response after the first command.

Cause: IC1002 is defect.(system software.)

Remedy: Change the system software. Part(s): Check SB (IC1002)

Model: AE4

Subject: No power.( The set smells.)

Symptom: No power.( The set smells.)

Cause: R 863 touches heatsink of IC 802.

Remedy: Change the fusable resistors of the vertical amplifyer and disconnect R 863 with heatsink. Part(s): 1-249-377-11

(R 818) 1-249-377-11 (R819

Model: AE4

Subject: No power

Symptom: No power

Cause: Lightening

Remedy: Check the following componentSymptom

:Q601,Q602,Q615,IC601,R601,T602,R637,D630,C609,Q603,Q604,Q605 Part(s): ()

Model: AE4

Subject: Digital effect

Symptom: Digital effect

Cause: IC 1814 on the B board is defect.

Remedy: Change this IC. Part(s): 8-759-438-64 (IC1814)

Model: AE4

Subject: No power.(PSU is OK)

Symptom: No power.(PSU is OK)

Cause: Q618 is leaking.

Remedy: Change this transistor Part(s): 8-729-029-56 (Q618)

Model: AE4

Subject: Intermittent no power.

Symptom: Intermittent no power.

Cause: X 401 (H-oscillator)

Remedy: Change X 401 Part(s): 1-767-343-21 (X 401)

 

 

 
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