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HISTORY INFORMATION FOR THE FOLLOWING MANUAL:
SERVICE MANUAL
ORIGINAL MANUAL ISSUE DATE: 4/2011
AZ2EK CHASSIS
Segment: P-2F
Version Date Subject
1.0 4/2011 Original manual issue.
2.0 5/2011 Add Missing Screw Part Number Information.
LCD Digital Color TV
9-888-441-02
KDL-26/32/37/40BX320,321,420 (AEP/UK)
S/N range 6,000,001-6,999,999 (WS)
SERVICE MANUAL
AZ2EK CHASSIS
Segment: P-2F
LCD Digital Color TV
9-888-441-02
MODEL LIST
MODEL COLOR COMMANDER DEST. MODEL COLOR COMMANDER DEST.
KDL-26BX320 Black RM-ED046 AEP/UK
KDL-26BX321 Black RM-ED046 AEP/UK
KDL-32BX320 Black RM-ED046 AEP/UK
KDL-32BX321 Black RM-ED046 AEP/UK
KDL-32BX420 Black RM-ED046 AEP
KDL-37BX420 Black RM-ED046 AEP
KDL-40BX420 Black RM-ED046 AEP/UK
KDL-26/32/37/40BX320,321,420(AEP/UK) 3
WARNINGS AND CAUTIONS - ENGLISH
CAUTION
These servicing instructions are for use by qualified service personnel only.
To reduce the risk of electric shock, do not perform any servicing other than that contained in the operating instructions unless you are qualified to do so.
WARNING!!
An isolation transformer should be used during any service to avoid possible shock hazard, because of live chassis.
The chassis of this receiver is directly connected to the ac power line.
CARRYING THE TV
Be sure to follow these guidelines to protect your property and avoid causing serious injury.
· Carry the TV with an adequate number of people; larger size TVs require two or more people.
· Correct hand placement while carrying the TV is very important for safety and to avoid damages.
SAFETY-RELATED COMPONENT WARNING!!
Components identified by shading and ! mark 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. Circuit adjustments that are critical for safe operation are identified in this manual.
Follow these procedures whenever critical components are replaced or improper operation is suspected.
KDL-26/32/37/40BX320,321,420(AEP/UK) 4
WARNINGS AND CAUTIONS - FRENCH
ATTENTION!!
Ces instructions de service sont à l'usage du personnel de service qualifi é seulement.
Pour prévenir le risque de choc électrique, ne pas faire l'entretien autre que celui contenu dans le Mode d'emploi à moins que vous soyez qualifi é faire ainsi.
WARNING!!
Afi n d'eviter tout risque d'electrocution provenant d'un chássis sous tension, un transformateur d'isolement doit etre utilisé lors de tout dépannage. Le chássis de ce récepteur est
directement raccordé à l'alimentation du secteur.
POUR TRANSPORTER LE TÉLÉVISEUR
Tenez compte de ce qui suit pendant l'installation du téléviseur :
· Débranchez tous les câbles avant de transporter le téléviseur.
· Transportez le téléviseur avec le nombre de personnes approprié ; un téléviseur de grande taille doit être transporté par au moins deux personnes.
· Lors du transport du téléviseur, l'emplacement des mains est très important pour votre sécurité, ainsi que pour éviter de causer des dommages.
ALERTE!!
Afi n d'eviter tout risque d'electrocution provenant d'un chassis sous tension, un transformateur d'isolement doit etre utilise lors de tout depannage. Le chassis de ce recepteur est
directement raccorde a l'alimentation du secteur.
ATTENTION AUX COMPOSANTS RELATIFS A LA SECURITE!!
Les composants identifi es par une trame et par une marque ! sur les schemas de principe, les vues explosees et les listes de pieces sont d'une importance critique pour la securite du
fonctionnement. Ne les remplacer que par des composants Sony dont le numero de piece est indique dans le present manuel ou dans des supplements publies par Sony. Les reglages
de circuit dont l'importance est critique pour la securite du fonctionnement sont identifi es dans le present manuel. Suivre ces procedures lors de chaque remplacement de
composants critiques, ou lorsqu'un mauvais fonctionnement suspecte.
KDL-26/32/37/40BX320,321,420(AEP/UK) 5
WARNINGS AND CAUTIONS
USE CAUTION WHEN HANDLING THE LCD PANEL
When repairing the LCD panel, be sure you are grounded by using a wrist band.
When repairing the LCD panel on the wall, the LCD panel must be secured using the 4 mounting holes on the rear cover.
1) Do not press on the panel or frame edge to avoid the risk of electric shock.
2) Do not scratch or press on the panel with any sharp objects.
3) Do not leave the module in high temperatures or in areas of high humidity for an extended period of time.
4) Do not expose the LCD panel to direct sunlight.
5) Avoid contact with water. It may cause a short circuit within the module.
6) Disconnect the AC power when replacing the backlight (CCFL) or inverter circuit. (High voltage occurs at the inverter circuit at 650Vrms.)
7) Always clean the LCD panel with a soft cloth material.
8) Use care when handling the wires or connectors of the inverter circuit. Damaging the wires may cause a short.
9) Protect the panel from ESD to avoid damaging the electronic circuit (C-MOS).
10) It is recommended not to exceed 1 hour of Power-On nor Burn-in period with LCD panel face down condition, in repair activity.
KDL-26/32/37/40BX320,321,420(AEP/UK) 6
SAFETY CHECK-OUT
After correcting the original service problem, perform the following safety checks before releasing the set to the customer:
1. Check the area of your repair for unsoldered or poorly soldered connections. Check the entire board surface for solder splashes and bridges.
2. Check the interboard wiring to ensure that no wires are "pinched" or touching high-wattage resistors.
3. Check that all control knobs, shields, covers, ground straps, and mounting hardware have been replaced. Be absolutely certain that you have replaced all the insulators.
4. Look for unauthorized replacement parts, particularly transistors, that were installed during a previous repair. Point them out to the customer and recommend their replacement.
5. Look for parts which, though functioning, show obvious signs of deterioration. Point them out to the customer and recommend their replacement.
6. Check the line cords for cracks and abrasion. Recommend the replacement of any such line cord to the customer.
7. Check the antenna terminals, metal trim, "metallized" knobs, screws, and all other exposed metal parts for AC leakage. Check leakage as described below.
8. For safety reasons, repairing the Power board and/or Inverter board is prohibited.
KDL-26/32/37/40BX320,321,420(AEP/UK) 7
SAFETY CHECK-OUT
Leakage Test
The AC leakage from any exposed metal part to earth ground and from all exposed metal parts to any exposed
metal part having a return to chassis, must not exceed 0.5 mA (500 microamperes).
Leakage current can be measured by any one of three methods.
1. A commercial leakage tester, such as the Simpson 229 or RCA WT-540A. Follow the manufacturers'
instructions to use these instructions.
2. A battery-operated AC milliampmeter. The Data Precision 245 digital multimeter is suitable for this job.
3. Measuring the voltage drop across a resistor by means of a VOM or battery-operated AC voltmeter. The
"limit" indication is 0.75 V, so analog meters must have an accurate low voltage scale.
The Simpson's 250 and Sanwa SH-63TRD are examples of passive VOMs that are suitable. Nearly all
battery-operated digital multimeters that have a 2 VAC range are suitable (see Figure A).
How to Find a Good Earth Ground
A cold-water pipe is a guaranteed earth ground; the cover-plate retaining screw on most AC outlet boxes is also
at earth ground.
If the retaining screw is to be used as your earth ground, verify that it is at ground by measuring the resistance
between it and a cold-water pipe with an ohmmeter. The reading should be zero ohms.
If a cold-water pipe is not accessible, connect a 60- to 100-watt trouble- light (not a neon lamp) between the hot
side of the receptacle and the retaining screw. Try both slots, if necessary, to locate the hot side on the line; the
lamp should light at normal brilliance if the screw is at ground potential (see Figure B).
KDL-26/32/37/40BX320,321,420(AEP/UK) 8
SELF DIAGNOSIS FUNCTION
The units in this manual contain a self-diagnostic function. If an error occurs, the STANDBY LED will automatically begin to flash.
The number of times the LED flashes translates to a probable source of the problem.
A definition of the STANDBY LED flash indicators is listed in the instruction manual for the user's knowledge and reference.
If an error symptom cannot be reproduced, the remote commander can be used to review the failure occurrence data stored in memory to reveal past problems and how often these
problems occur.
DIAGNOSTIC TEST INDICATORS
When an error occurs, the STANDBY LED will flash a set number of times to Service menu Item
STBY LED
indicate the possible cause of the problem. name Diagnostic Item Description
Flash time
(Screen Display)
If there is more than one error, the LED will identify the first of the problem areas.
2 MAIN_POWE Main Power Over Voltage Protection
Result for all of the following diagnostic items are displayed on screen.
3 DC_ALERT1 DC_ALERT
If the screen displays a "0", no error has occurred .
AUDIO_PROT Audio Abnorm al Detection
4 BALANCER_ERR Not us ed
5 TCON_ERR Not us ed
DISPLAY OF STANDBY LED FLASH COUNT
PANEL_ID__NVM_ERR Panel ID NVM Error
6 BACKLITE_ERR Back Light Error (Panel Inverter)
7 TEMP_ERR Therm al Error
8 - Not us ed
9 - Not us ed
10 - Not us ed
11 - Not us ed
0.5
12 - Not us ed
0.5
3
SELF-DIAGNOSTIC SCREEN DISPLAY
For errors with symptoms such as "power sometimes shuts off" or "screen sometimes goes out" that cannot be confirmed, it is possible to bring up past occurrences of failure for
confirmation on the screen:
[To Bring Up Screen Test]
In standby mode, press buttons on the remote commander sequentially in rapid succession as shown below:
*
Info Channel 5 Volume TV POWER
* : Note that this differs from entering the service mode (volume +)
KDL-26/32/37/40BX320,321,420(AEP/UK) 9
SELF DIAGNOSIS FUNCTION
[SELF DIAGNOSTIC SAMPLE SCREEN DISPLAY]
SELF CHECK
Item name
BACK <<
002 MAIN_POWER 000
003 DC_ALERT1 000
003 AUDIO_PROT 000
004 BALANCER_ERR 000
STBY LED flash time 005 TCON_ERR 000 Error count
005 PANEL_ID_NVM_ERR 000
006 BACKLITE_ERR 000
007 TEMP_ERR 000
123456789123456
[Home] Exit
Panel operation time by hour
Boot count
Total operation time by hour
Since the diagnostic results displayed on the screen are not automatically cleared, always check the self-diagnostic screen.
After you have completed the repairs, clear the result display to "0".
Clearing the Self Check Diagnostic List
1. Error history and Error count : Press the Channel 8 => Channel 0 .
2. Panel operation time : Press the Channel 7 => Channel 0 .
Exiting the Self-diagnostic screen
To exit the Self Diagnostic screen, turn off the power to the TV by pressing the POWER button on the remote or the POWER button on the TV.
KDL-26/32/37/40BX320,321,420(AEP/UK) 10
SEC 1. DISASSEMBLY AND PARTS LIST
· Items with no part number and no description are not stocked because they are seldom required for roution service.
· The construction parts of an assembled part are indicated with a collation number in the remark colum.
· Items marked " * " are not stocked since they are seldom required for routine service. Some delay should be anticipated when ordering these items.
IMPORTANT: When replacing LCD Panel or Circuit Boards ensure that all Radiation Sheets and Insulation Sheets are in their
correct positions in the TV set.
KDL-26/32/37/40BX320,321,420(AEP/UK) 11
DISASSEMBLY AND PARTS LIST
1-1. KDL-26BX320/321
1-1-1. REAR COVER ASSY AND STAND BLOCK REF. No. PART No. DESCRIPTION REMARK
1 WS0020401 REAR COVER (GW26)
2 WS0018201 COVER, NECK (M3B)
1 3 WS0018101 NECK (M3B)
4 WS0017601 BASE (M3B) ASSY BX320
WS0017701 BASE (M5B) ASSY BX321
WS0030801 SCREW +BVTP2 4X16
WS0010101 SCREW +BVTP 3X12 TYPE2 IT-3
WS0002901 SCREW, +PSW M5X16
WS0018001 SCREW, +PSW M4X10
1-1-2. NECK COVER, NECK AND BASE ASSY
2
4
3
KDL-26/32/37/40BX320,321,420(AEP/UK) 12
DISASSEMBLY AND PARTS LIST
1-1. KDL-26BX320/321
1-1-3. G13 BOARD, A BOARD, SWITCH UNIT, VESA BRACKET AND REF. No. PART No. DESCRIPTION REMARK
SIDE BRACKET
11 WS0016001 SWITCH UNIT
13 14
12 WS0015801 STATIC CONVERTER (TV)-G13
13 WS0020001 BRACKET, VESA (GW26)
14 WS0019701 CONNECTOR ASSY 26 FFC WXGA EU
15 15 WS0016301 MOUNTED PWB A
16 WS0017001 BRACKET, SIDE (EU) (GW)
17 WS0020501 POWER SUPPLY CORD (WITH CORE)
12 18 WS0018301 COVER, UNDER (GW26)
16
19 WS0019601 LOUDSPEAKER (4X10CM)
11 20 WS0020101 BRACKET, SP (GW26R)
21 WS0020201 BRACKET, SP (GW26L)
WS0020701 SCREW, +PSW M3X8
WS0030801 SCREW +BVTP2 4X16
WS0010101 SCREW +BVTP 3X12 TYPE2 IT-3
17 18
WS0018001 SCREW, +PSW M4X10
1-1-4. SPEAKER BRACKET AND SPEAKER WS0030701 SCREW, +PSW M4X8
BOTTOM FRAME
19
20 21
KDL-26/32/37/40BX320,321,420(AEP/UK) 13
DISASSEMBLY AND PARTS LIST
1-1. KDL-26BX320/321
1-1-5. PANEL SUPPORT, H BOARD, LCD PANEL AND BEZEL ASSY REF. No. PART No. DESCRIPTION REMARK
31 WS0016901 PANEL SUPPORT (A)
32 1-811-375-11 LCD PANEL (A26V7)
33 WS0020301 BEZEL (GW26)
34 WS0016501 MOUNTED PWB H
31
32
33
34
KDL-26/32/37/40BX320,321,420(AEP/UK) 14
DISASSEMBLY AND PARTS LIST
1-2. KDL-32BX320/321, BX420
1-2-1. REAR COVER ASSY AND STAND BLOCK REF. No. PART No. DESCRIPTION REMARK
1 WS0018701 REAR COVER (GW32)
2 WS0018801 BRACKET, VESA (M6) (GW)
1 3 WS0018201 COVER, NECK (M3B)
4 WS0018101 NECK (M3B)
5 WS0017601 BASE (M3B) ASSY BX320,420
WS0017701 BASE (M5B) ASSY BX321
WS0030801 SCREW +BVTP2 4X16
WS0031101 SCREW, M3X12L
WS0010101 SCREW +BVTP 3X12 TYPE2 IT-3
WS0002901 SCREW, +PSW M5X16
WS0018001 SCREW, +PSW M4X10
1-2-2. VESA BRACKET, NECK COVER, NECK AND BASE ASSY
3
2
4
5
KDL-26/32/37/40BX320,321,420(AEP/UK) 15
DISASSEMBLY AND PARTS LIST
1-2. KDL-32BX320/321, BX420
1-2-3. G13 BOARD, A BOARD, SWITCH UNIT AND SIDE BRACKET REF. No. PART No. DESCRIPTION REMARK
11 WS0016001 SWITCH UNIT
12 WS0015801 STATIC CONVERTER (TV)-G13
13 WS0016701 CONNECTOR ASSY 32 FFC WXGA EU BX320,321
13
WS0016801 CONNECTOR ASSY 32 FFC FHD EU BX420
14 WS0016301 MOUNTED PWB A BX320,321
14 WS0016401 MOUNTED PWB A BX420
12 15 WS0017001 BRACKET, SIDE (EU) (GW)
16 WS0019301 POWER SUPPLY CORD (WITH CORE)
15
17 WS0018301 COVER, UNDER (GW26)
18 WS0017101 BRACKET, VESA (GW32)
11 19 WS0016601 LOUDSPEAKER (4X10CM)
20 WS0018401 BRACKET, SP (GW32R)
21 WS0018501 BRACKET, SP (GW32L)
WS0020701 SCREW, +PSW M3X8
17 WS0030801 SCREW +BVTP2 4X16
16
WS0010101 SCREW +BVTP2 3X12
WS0030701 SCREW, +PSW M4X8
1-2-4. VESA BRACKET, BOTTOM FRAME AND H BOARD
18
18
BOTTOM FRAME
19
20 21
KDL-26/32/37/40BX320,321,420(AEP/UK) 16
DISASSEMBLY AND PARTS LIST
1-2. KDL-32BX320/321, BX420
1-2-5. PANEL SUPPORT, H BOARD, LCD PANEL AND BEZEL ASSY REF. No. PART No. DESCRIPTION REMARK
31 WS0016901 PANEL SUPPORT (A)
32 1-811-376-11 LCD PANEL (A32VE) BX320,321
1-811-377-11 LCD PANEL (A32VC) BX420
33 WS0018601 BEZEL (GW32)
34 WS0016501 MOUNTED PWB H
31
32
33
34
KDL-26/32/37/40BX320,321,420(AEP/UK) 17
DISASSEMBLY AND PARTS LIST
1-3. KDL-37BX420
1-3-1. REAR COVER ASSY AND STAND BLOCK REF. No. PART No. DESCRIPTION REMARK
1 WS0023001 REAR COVER (GW37)
2 WS0018801 BRACKET, VESA (M6) (GW)
1 3 WS0022501 COVER, NECK (ML3B)
4 WS0022401 NECK (ML3B)
5 WS0022301 BASE STAND (ML3B)
WS0002901 SCREW, +PSW M5X16
WS0030701 SCREW, +PSW M4X8
WS0031201 SCREW, T4X25L
WS0010101 SCREW, +BVTP2 3X12
WS0018001 SCREW, +PSW M4X10
1-3-2. VESA BRACKET, NECK COVER, NECK AND BASE ASSY
3
2
4
5
KDL-26/32/37/40BX320,321,420(AEP/UK) 18
DISASSEMBLY AND PARTS LIST
1-3. KDL-37BX420
1-3-3. G13 BOARD, A BOARD, SWITCH UNIT AND SIDE BRACKET REF. No. PART No. DESCRIPTION REMARK
11 WS0016001 SWITCH UNIT
12 WS0022101 STATIC CONVERTER (TV)-G14
13 WS0022201 CONNECTOR ASSY 37 FFC FHD
13 14 14 WS0016401 MOUNTED PWB A
15 WS0017001 BRACKET, SIDE (EU) (GW)
16 WS0023101 POWER SUPPLY CORD (WITH CORE)
12
17 WS0022601 COVER, UNDER (GW37)
18 WS0022801 BRACKET, SP (GW37L)
15
19 WS0016601 LOUDSPEAKER (4X10CM)
20 WS0022701 BRACKET, SP (GW37R)
11
WS0020701 SCREW, +PSW M3X8
WS0030801 SCREW, +BVTP2 4X16
WS0010101 SCREW +BVTP2 3X12
WS0030701 SCREW, +PSW M4X8
16 17 WS0018001 SCREW, +PSW M4X10
1-3-4. BOTTOM FRAME AND SPEAKER
18
19
20
KDL-26/32/37/40BX320,321,420(AEP/UK) 19
DISASSEMBLY AND PARTS LIST
1-3. KDL-37BX420
1-3-5. PANEL SUPPORT, H BOARD, LCD PANEL AND BEZEL ASSY REF. No. PART No. DESCRIPTION REMARK
31 31 WS0016901 PANEL SUPPORT (A)
32 1-811-374-11 LCD PANEL (C37H4-L01)
33 WS0022901 BEZEL (GW37)
34 WS0016501 MOUNTED PWB H
WS0030701 SCREW, +PSW M4X8
WS0031201 SCREW, T4X25L
32
34
33
KDL-26/32/37/40BX320,321,420(AEP/UK) 20
DISASSEMBLY AND PARTS LIST
1-4. KDL-40BX420
1-4-1. REAR COVER ASSY AND STAND BLOCK REF. No. PART No. DESCRIPTION REMARK
1 WS0024001 REAR COVER (GW40)
2 WS0018801 BRACKET, VESA (M6) (GW)
1 3 WS0022501 COVER, NECK (ML3B)
4 WS0022401 NECK (ML3B)
5 WS0022301 BASE STAND (ML3B)
WS0030801 SCREW +BVTP2 4X16
WS0010101 SCREW +BVTP 3X12 TYPE2 IT-3
WS0002901 SCREW, +PSW M5X16
WS0030701 SCREW, +PSW M4X8
1-4-2. VESA BRACKET, NECK COVER, NECK AND BASE ASSY
3
2
4
5
KDL-26/32/37/40BX320,321,420(AEP/UK) 21
DISASSEMBLY AND PARTS LIST
1-4. KDL-40BX420
1-4-3. G13 BOARD, A BOARD, SWITCH UNIT AND SIDE BRACKET REF. No. PART No. DESCRIPTION REMARK
11 WS0016001 SWITCH UNIT
12 WS0022101 STATIC CONVERTER (TV)-G14
13 WS0023301 CONNECTOR ASSY 40 FFC FHD
13
14 WS0016401 MOUNTED PWB A
15 WS0017001 BRACKET, SIDE (EU) (GW)
14
16 WS0024101 POWER SUPPLY CORD (WITH CORE)
12
17 WS0022601 COVER, UNDER (GW37)
18 WS0023801 BRACKET, SP (GW40L)
15
19 WS0016601 LOUDSPEAKER (4X10CM)
20 WS0023701 BRACKET, SP (GW40R)
11
WS0020701 SCREW, +PSW M3X8
WS0030801 SCREW +BVTP2 4X16
WS0010101 SCREW +BVTP2 3X12
WS0018001 SCREW, +PSW M4X10
16 17
1-4-4. BOTTOM FRAME AND SPEAKER
18 19
BOTTOM FRAME
20
KDL-26/32/37/40BX320,321,420(AEP/UK) 22
DISASSEMBLY AND PARTS LIST
1-4. KDL-40BX420
1-4-5. PANEL SUPPORT, H BOARD, LCD PANEL AND BEZEL ASSY REF. No. PART No. DESCRIPTION REMARK
31 WS0016901 PANEL SUPPORT (A)
32 1-811-329-11 LCD PANEL (S40ESP)
33 WS0023901 BEZEL (GW40)
34 WS0016501 MOUNTED PWB H
WS0030801 SCREW +BVTP2 4X16
31
32
33
34
KDL-26/32/37/40BX320,321,420(AEP/UK) 23
DISASSEMBLY AND PARTS LIST
1-5. OTHER PARTS
1-5-1. MISCELLANEOUS
WS0030501 BAG ASSY, SCREW (B) - (Contains Screw Part Numbers: WS0002901(4 pcs) & WS0018001(3 pcs))
1-5-2. ACCESSORIES
* WS0019001 MANUAL, INSTRUCTION
* WS0019101 MANUAL, INSTRUCTION
* WS0019201 MANUAL, INSTRUCTION
WS0015901 REMOTE COMMANDER (RM-ED046)
KDL-26/32/37/40BX320,321,420(AEP/UK) 24
SEC 2. ADJUSTMENT
HOW TO ENTERING SERVICE MODE
1) Turn on the main power switch to place this set in standby mode.
2) Press the buttons on the remote commander as follows, and entering service mode.
Info Channel 5 Volume TV POWER
3) Service mode display.
Service Mode
Status Information >>
Self diagnosis history >>
Panel Selection <[ SONY_WXGA_32_2 ]>
NO_SIGNAL_MUTE <[ Off ]>
TUNING SYSTEM <[ AUTO ]>
LVDS Spectrum (%o) <[ 20 ]>
Low of HPD <[ 5 ]>
[]Set[Home]Exit
KDL-26/32/37/40BX320,321,420(AEP/UK) 25
ADJUSTMENT
4) How to use the remote commander.
Function The flow of control
Service mode on <5>
Service mode off /
Adjustment Item up / down /
Data Value up / down /
5) After entering service mode, then turn off the power switch.
KDL-26/32/37/40BX320,321,420(AEP/UK) 26
SEC 3. DIAGRAMS
3-1. BLOCK DIAGRAM
3-1-1. BLOCK
Crystal
DDR DDR Flash EEPROM WS
512Mbit 512Mbit 512Mbit 128Kbit
OSDA0/OSCL0
DDC_LUT0
SAW RA*/RBA*/RDQ PDD*/etc crystalin
DDC_LUT1
DDC_LUT2
Co
Filter RDQM* crystalout
RF ADCINN/P_DEMOD DRAM Nand Flash CLK/Crystal PANEL_SEL
OSDA0/OSCL0
ntr Pa
Demod
TUNER_DATA/CLK
IF_AGC
Interface Interface ol ne
Tx even/odd
LVDS_CTRL1
HDMI1 HDMI_SDA0/SCL0
HDMI LVDS LVDS_CTRL2 TCON_RDY T? l
HDMI_HPD0/1/2 LVDS_SEL(FFC:0,
othre:1)
PWR5V_0/1/2 Contro VSYNC
Co
HDMI2 HDMI_CEC
Analog V_Sync n
RX0_0/1/2/C HDMI
Video Out
Video1 RX1_0/1/2/C Reciever
AOMCLK Audio Speaker
Comp1 AV_COMP_SEL CVBS1
IIS
AOBCK
AOLRCK
AMP
Out
CVBS3 Analog RESET_AMP
AODATA0
PC Y0P/PB0P/PR0P/SOY0
Y1P/PB1P/PR1P/SOY1Video In
AMP_MUTE
Audio
Buffer
BP/GP/RP/VSYNC/HSYNC PWM Audio Out
Video2 AL0/AR0_PWMDAC
Mute
Out
SPDIF ASPDIF
(Side) AIN1_L/R_AADC SPDIF
AIN2_L/R_AADC Analog
AIN3_L/R_AADC Audio In AVDD12(1.2V)
AIN6_L/R_AADC Power AVDD33(3.3V)
EEPROM VCCK(1.0V)
VCC2IO(1.8V)
WC
USB_DP USB VCC3IO(3.3V
Po
GPIO
USB USB_DM Interface
I2C
GPIO0 PTSI_CLKPTSI_CLK DD & LDO we
USB_PWR_EN0 ServoADC GPIO1 OPCTRL0 PTSI_VALID
USBCurrent USB_PWR_ERR GPIO2 OPCTRL1 PTSI_SYNC r/
Limitter UART OSDA0/ GPIO3 OPCTRL2 PTSI_D0 D7
?
3.3STBY
Reset IR OSCL0
ADIN5_SRV
GPIO4 HDMI_HPD2 POWER ENABLE
ON
Inv
ADIN4_SRV
ACOFFDET
Keep
OSDA1/ ADIN3_SRV GPIO5 HDMI_SDA2
LVDS POWR ON ert
RST OIRI OSCL1 ADIN2_SRV GPIO6 HDMI_SCL2
Inverter Dimming
100ms
IC ADIN1 SR GPIO7 er
or more 12V PA Bal
12V Key
_A NEL anc
_S Pad
WMP _SE er
L Err
OSDA0/OSCL0 Po
wer Key OSDA0
Key Pad /OSCL0
12V_SW
Balancer Error
Light LED Key Pad Temp 12V_Audio
IR Audio AMP Error
Sensor Sensor T-Con Error
5V Det
BackLight Error
H?Board Error
Detction
KDL-26/32/37/40BX320,321,420(AEP/UK) 27
DIAGRAMS
3-1. BLOCK DIAGRAM
3-1-2. RESET/I2C & UART
3V3_SW
MT5388 MT5388 OSDA0/OSCL0
Temp Light
EEPROM T-Con
Sensor Sensor
WS# 3V3_SW
EEPROM
OSDA1/OSCL1
Audio AMP
USB_PWR_EN
EN USB
OCP 5V_TUNER
I2C
TUNER_CLK/TUNER_DATA
Reset IC ORESET#
Tuner
3V3_SW
RESET_AMP Audio HDMI_SCL0/HDMI_SDA0
GPIO_7 AMP
HDMI1
Flash WP
512Mbit 3V3_SW
HDMI_SCL1/HDMI_SDA1
U0TX
U0RX HDMI2
D-SUB15
UART
For Debug
KDL-26/32/37/40BX320,321,420(AEP/UK) 28
DIAGRAMS
3-2. CONNECTOR DIAGRAM
3-2-1. KDL-26BX320/321
T-CON Board
Panel
CN202 CN1
CN6401
CN6402 CN8156
CN13
CN17
G13
Main board
Power Board
Inverter
CN9101 IR board
Key Pad board
KDL-26/32/37/40BX320,321,420(AEP/UK) 29
DIAGRAMS
3-2-2. KDL-32BX320/321
T-CON Board
Panel
CN202 CN1
CN6401
CN6402 CN8156
CN13
CN17
G13
Main board
Power Board
Inverter
CN9101 IR board
Key Pad board
KDL-26/32/37/40BX320,321,420(AEP/UK) 30
DIAGRAMS
3-2-3. KDL-32BX420
T-CON Board
Panel
CN2
CN6401 CN202
CN6402 CN8156
CN13
CN17
G13
Main board
Power Board
Inverter
CN9101 IR board
Key Pad board
KDL-26/32/37/40BX320,321,420(AEP/UK