Sony GrandWega KDF-E55A20 User manual

LCD PROJECTION TELEVISION
SERVICE MANUAL LA-3 CHASSIS
MODEL NAME REMOTE COMMANDER DESTINATION
9-965-984-03
KDF-E55A20 RM-YD002 US/CND/MEXICO
KDF-E60A20 RM-YD002 US/CND/MEXICO
HISTORY INFORMATION FOR THE FOLLOWING MANUAL:
ORIGINAL MANUAL ISSUE DATE: 6/2005
:UPDATED ITEM
REVISION DATE SUBJECT
6/2005 No revisions or updates are applicable at this time.
6/2005 Corrected Exploded View section to show only one PN for Power Supply Block and
replaced PN for Lamp with PN for Lamp Block Assembly (Replace Pg. 71 with Pg. 71)
Removed PN for Lamp (Replace Pg. 110 with Pg. 110)
12/2005 Reissue entire manual to include information for SN ranges 9,100,001 to 9,799,999 and 9,900,001 and up
☛

LCD PROJECTION TELEVISION
SERVICE MANUAL LA-3 CHASSIS
MODEL NAME REMOTE COMMANDER DESTINATION
9-965-984-03
KDF-E55A20 RM-YD002 US/CND/MEXICO
KDF-E60A20 RM-YD002 US/CND/MEXICO
Self Diagnosis
Supported model
KDF-E55A20 RM-YD002

3
KDF-E55A20/E60A20
KDF-E55A20/E60A20
TABLE OF CONTENTS
SECTION TITLE PAGE SECTION TITLE PAGE
Specifications ................................................................................. 4
Warnings and Cautions .................................................................. 6
Safety Check-Out ........................................................................... 7
Self-Diagnostic Function................................................................. 8
SECTION 1: DISASSEMBLY............................................................... 14
1-1. Rear Cover Removal............................................................ 14
1-2. OU Bracket Removal ........................................................... 14
1-3. Chassis Assembly and Fan Removal .................................. 15
1-4. Service Position ................................................................... 15
1-5. RF Antenna Switch Removal ............................................... 16
1-6. U1 Board and H4 Board Removal........................................ 16
1-7. GM Board Removal.............................................................. 17
1-8. A1 Board (or A2 Board) and KD Board Removal ................. 17
1-9. DMB Assembly (Q Box) and B1 Board Removal ................. 18
1-10.GI Board (or GK Board) Removal ........................................ 18
1-11. Fan and T Board Removal ................................................... 19
1-12.H1 Board Removal............................................................... 19
1-13.Front Cover Assembly Removal........................................... 20
1-13-1. Replacing the Lamp................................................. 20
1-14.Power Supply Block Removal (Lamp Drive Unit)................. 20
1-15.Optics Unit Block Assembly Fan Removal .......................... 21
1-16.H2 Board, H3 Board, and H5 Board Removal ..................... 21
1-17.Screen Mirror Block Assembly Removal .............................. 22
1-18.Speaker Removal................................................................. 22
Wire Dressing ............................................................................... 23
SECTION 2: CIRCUIT ADJUSTMENTS.............................................. 43
2-1. Remote Adjustment Buttons and Indicators ......................... 43
2-2. Accessing the Service Adjustment Mode ............................. 43
2-3. Changing Service Adjustment Mode Memory ...................... 43
2-4. Memory Write Confirmation Method .................................... 44
2-5. H/V Center Confirmation and Adjustments .......................... 45
2-6. Adjusting On Screen Display (OSD) Position ...................... 46
SECTION 3: DIAGRAMS..................................................................... 47
3-1. Circuit Boards Location ........................................................ 47
3-2. Printed Wiring Boards and
Schematic Diagrams Information ......................................... 47
3-3. Block Diagrams .................................................................... 49
Signal Flow Block Diagram (SN 9,000,001 to 9,099,999
and 9,800,000 and 9,899,999 Only) ........................ 49
Signal Flow Block Diagram (SN 9,100,001 to 9,799,999
and 9,900,001 Up)................................................... 50
Audio Block Diagram....................................................... 51
3-3. Schematics and Supporting Information .............................. 52
A1 Board Schematic Diagram (1 of 2) (SN 9,000,001 to
9,099,999 and 9,800,001 to 9,899,999 Only) .......... 52
A1 Board Schematic Diagram (2 of 2) (SN 9,000,001 to
9,099,999 and 9,800,001 to 9,899,999 Only) .......... 53
A2 Board Schematic Diagram (1 of 2) (SN 9,100,001 to
9,799,999 and 9,900,001 and Up Only) .................. 55
A2 Board Schematic Diagram (2 of 2) (SN 9,100,001 to
9,799,999 and 9,900,001 and Up Only) .................. 56
B1 Board Schematic Diagram (1 of 5) ................................. 58
B1 Board Schematic Diagram (2 of 5) ................................. 59
B1 Board Schematic Diagram (3 of 5) ................................. 60
B1 Board Schematic Diagram (4 of 5) ................................. 61
B1 Board Schematic Diagram (5 of 5) ................................. 62
GI Board Schematic Diagram (1 of 2) (SN 9,000,001 to
9,099,999 and 9,800,001 to 9,899,999 Only) .......... 65
GI Board Schematic Diagram (2 of 2) (SN 9,000,001 to
9,099,999 and 9,800,001 to 9,899,999 Only) .......... 66
GK Board Schematic Diagram (1 of 3) (SN 9,100,001 to
9,799,999 and 9,900,001 and Up Only) .................. 69
GK Board Schematic Diagram (2 of 3) (SN 9,100,001 to
9,799,999 and 9,900,001 and Up Only) .................. 70
GK Board Schematic Diagram (3 of 3) (SN 9,100,001 to
9,799,999 and 9,900,001 and Up Only) .................. 71
GM Board Schematic Diagram ............................................ 74
H1 Board Schematic Diagram.............................................. 77
H2 Board Schematic Diagram.............................................. 79
H3 Board Schematic Diagram.............................................. 81
H4 Board Schematic Diagram (SN 9,000,001 to 9,099,999
and 9,800,001 to 9,899,999 Only) ........................... 82
H5 Board Schematic Diagram.............................................. 83
KD Board Schematic Diagram (SN 9,000,001 to 9,099,999
and 9,800,001 to 9,899,999 Only) ........................... 84
T Board Schematic Diagram ................................................ 86
U1 Board Schematic Diagram.............................................. 87
3-4. Semiconductors ................................................................... 89
SECTION 4: EXPLODED VIEWS ........................................................ 90
4-1. Cover.................................................................................... 90
4-2. Bottom Cabinet .................................................................... 91
4-3. Chassis ................................................................................ 92
SECTION 5: ELECTRICAL PARTS LIST........................................... 93

4
KDF-E55A20/E60A20
KDF-E55A20/E60A20
SPECIFICATIONS
Design and specifications are subject to change without notice.
120V AC, 60Hz
265W
Less than 15W
HDMI IN
Video - 1080i, 720p, 480p, 480i
Audio - Two channel linear PCM 32, 44.1 and 48 kHz,
16, 20, and 24 bit
Video (IN)
3 total (1 on front panel)
1Vp-p, 75ohms unbalanced, sync negative
S Video (IN)
3 total (1 on front panel)
Y: 1Vp-p, 75ohms unbalanced, sync negative
C: 0.286Vp-p (Burst signal), 75ohms
Audio (IN)
6 total (1 on front panel)
500 mVrms (100% modulation)
Impedance:47 kilo ohms
Power Requirements
Power Consumption (W)
In Use (Max)
In Standby
Inputs/Outputs Audio (VAR/FIX) Out
1 total
500 mVrms at the maximum volume setting (Variable)
500 mVrms (Fixed)
Impedance (Output):2 kilo ohm
Note: Audio Out jacks are operable only when
the TV’s speaker is set to Off.
Component Video Input
2 (Y, PB, PR)
Y: 1.0 Vp-p, 75 ohms unbalanced, sync negative
PB
:
0.7 Vp-p, 75 ohms;
PR: 0.7 Vp-p, 75 ohms
RF Inputs
2 total
Digital Audio Optical Output (PCM/Dolby Digital)
1 total
Optical Rectangular (1)
CableCARD Slot
1 total
PCMCIA Type I/II
KDF-E55A20 KDF-E60A20
Speaker Output (W)
Dimensions (W x H x D)
mm 1,456 x 943 x 491 mm 1,574 x 1,005 x 518 mm
in 57 3/8 x 37 1/4 x 19 3/8 in 62 x 39 5/8 x 20 1/2 in
Mass
kg 42 kg 46.1 kg
lbs 92 lbs 5 oz 101 lbs 5 oz
12W (L), 12W (R)
Trademark Information
As an ENERGY STAR®Partner, Sony
Corporation has determined that this product
meets the ENERGY STAR®guidelines for
energy efficiency.
ENERGY STAR®is a U.S. registered mark.
TruSurround XT, SRS and the ( )®symbol are
trademarks of SRS Labs, Inc. TruSurround XT
technology is incorporated under license from SRS Labs,
Inc.
BBE and BBE Symbol are trademarks of BBE Sound,
Inc. and are licensed by BBE Sound, Inc. under U.S.
Patent No. 4,638,258 and 4,482,866.
This TV incorporates High-
Definition Multimedia Interface
(HDMI™) technology. HDMI, the HDMI logo and High-
Definition Multimedia Interface are trademarks or
registered trademarks of HDMI Licensing LLC.
WEGA, Grand WEGA, WEGA GATE, Steady Sound,
Digital Reality Creation, CineMotion, PlayStation, and
BN Smoother are trademarks of Sony Corporation.
Macintosh is a trademark licensed to Apple Computer, Inc.,
registered in the U.S.A and other countries.
WEGA, Grand WEGA, WEGA GATE, Steady Sound,
Digital Reality Creation and CineMotion
are registered trademarks of Sony Corporation.

5
KDF-E55A20/E60A20
KDF-E55A20/E60A20
Television system
American TV standard, NTSC
ATSC compliant 8VSB, ATSC (8VSB terrestrial)
ANSI/SCTE 07 2000 QAM on cable
Channel coverage
Terrestrial 2-69/ Cable TV: 1-125 (analog)
Terrestrial: 2-69/ Cable TV: 1-135 (digital)
Screen Size (measured diagonally)
55 inches (KDF-E55A20 Only)
60 inches (KDF-E60A20 Only)
Antenna
75-ohm external antenna terminal for VHF/UHF
Projection System
3 LCD Panels, 1 lens projection system
LCD Panel
0.87 inch TFT LCD panel Approx. 3.28 million dots
(1,042,168 pixels)
Projection Lens
High Performance, large diameter hybrid lens F2.4
Lamp
132W, XL-2200
Supplied Accessories
Remote Commander RM-YD002
Two Size AA (R6) Batteries
Optional Accessories
HDMI Cable
Component Video Cable
S VIDEO Cable
A/V Cable
Audio Cable
Optical Cable
TV Stand: SU-GW12
Lamp: 132W, XL-2200

6
KDF-E55A20/E60A20
KDF-E55A20/E60A20
WARNINGS AND CAUTIONS
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.
!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.
ATTENTION!!
Ces instructions de service sont à l’usage du personnel de service qualifié 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 qualifié faire ainsi.
Afin 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.
!ATTENTION AUX COMPOSANTS RELATIFS A LA SECURITE!!
Les composants identifies 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 identifies dans le present manuel. Suivre ces procedures lors de chaque
remplacement de composants critiques, ou lorsqu’un mauvais fonctionnement suspecte.

7
KDF-E55A20/E60A20
KDF-E55A20/E60A20
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 B+ and HV to see if they are specified values. Make sure
your instruments are accurate; be suspicious of your HV meter if sets
always have low HV.
8. Check the antenna terminals, metal trim, “metallized” knobs, screws,
and all other exposed metal parts for AC leakage. Check leakage as
described below.
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).
To Exposed Metal
Parts on Set
0.15 µF
Earth Ground
AC
Voltmeter
(0.75V)
Trouble Light
AC Outlet Box Ohmmeter
Cold-water Pipe
Figure A. Using an AC voltmeter to check AC leakage. Figure B. Checking for earth ground.

8
KDF-E55A20/E60A20
KDF-E55A20/E60A20
SELF-DIAGNOSTIC FUNCTION
Self Diagnosis
Supported model
The units in this manual contain a self-diagnostic function. If an error occurs, the POWER/STANDBY or LAMP 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 POWER/STANDBY or LAMP LED flash
indicators is listed in the instruction manual for the user’s knowledge and reference. If an error symptom is difficult to reproduced use the Remote
Commander to display the record that is stored at the internal NVM to specify the cause of the failure.
Diagnostic Test Indicators
When an error occurs, the POWER/STANDBY or LAMP LED will flash a set number of times to indicate the possible cause of the problem. If there
is more than one error, the LED will identify the first of the problem areas. If the errors occur simultaneously, the one that corresponds to the fewest
flashes is identified first.
Results for all of the following diagnostic items are displayed on screen. No error has occurred if the screen displays a “0”.
Diagnostic Item
Description
Number of times
STANDBY or
LAMP LED lam
p
Probable Cause Detected Symptoms
Lamp cover error 3 times - Lamp cover is not fastened securely. - No picture/No sound
Fan error 4 times
- Fan1-4 Power is not supplied.
(GI board)
- Fan connector is not seated securely.
- Fan caught wires or harnesses.
- No picture/No sound
Temp error 4 times
- Internal temperature is too high.
- IIC-E line connector(H4 board)
is not seated properly.
- No picture/No sound
Lamp driver error 5 times - Lamp driver defect - No picture/No sound
Low B error 6 times - No "DD 6V " output (GM board) - No picture/No sound
Audio error 7 times
- Short-circuit of Audio power supply line
(KD board, GM board)
- Blowout of a fuse
(PS4702,PS4703 on KD board)
- IC failure
(IC4703,IC4708,IC4710 on KD board)
- No picture/No sound
D-OVP error 8 times - Overvoltage of +3.3V or +2.5V
(A board, B board) - No picture/No sound
ATSC-OVP error 10 times - No "Q5V " output (GM board, GI board) - No picture/No sound
Lamp error LAMP-LED is ON. - Lamp is dead - No picture/No sound

9
KDF-E55A20/E60A20
KDF-E55A20/E60A20
Display of POWER/STANDBY or LAMP LED Flash Count
LAMP TIMER POWER
POWER
Screen
Projection lamp Indicators
- Oneflashisnotusedfor self-diagnosis.
-Example
Diagnosis Number of times LED Flash
Lampcover 3 times
Fan 4 times
LED ON: 0.3sec
LED OFF : 0.3sec LED OFF
3.0sec
Releasing the POWER/STANDBY LED Flash
Unplug the power cord from the outlet to temporarily stop the POWER/STANDBY lamp from flashing.
Self-Diagnosis Screen Display
For failures that are difficult to reproduce, or accompany occasional power off and/or picture mute, the Self-Diagnosis screen display is useful to
specify the cause..
To Bring Up Screen Test
In standby mode, press the buttons on the Remote Commander sequentially, in rapid succession, as shown below:
1. DISPLAY Channel
5 Sound Volume -
POWER
Self-Diagnostic Screen Display
SELFCHECK
1 : LAMP ERR 0
3:
4:LAMP COVER 0
FAN-E/TEMP-E 1
5 : LAMP DRIVER
6 : LowB-ERR 0
0
7 : Audio-Prot
8 : D-OVP 0
1
101 : WDT 0
10 : ATSC_OVP 0
"1" is displayed when a failure is detected one or more times
"0" is displayed when no failure has been detected
Since the diagnostic results displayed on the screen are not automatically cleared, always check the self-diagnostic screen during repairs. When you
have completed the repairs, clear the result display to “0”.
Note: The self-diagnostic function will not be able to detect any subsequent faults after completion of the repairs unless the result display is
cleared to “0”.

10
KDF-E55A20/E60A20
KDF-E55A20/E60A20
Clearing the Result Display
To clear the result display to “0”, press the buttons on the Remote Commander sequentially when the diagnostic screen is displayed, as shown below:
1. If the screen is already displayed, proceed to step 3. If not, Power off (Set to Standby mode).
2. Press DISPLAY Channel
5 Sound Volume -
POWER
3. Press Channel 8
ENT
Clearing the Self-Diagnostic Screen
The self diagnosis screen display is cleared by turning off the set using the Remote Commander or the power switch.
Self-Diagnostic Circuit
Self-Diagnosis Function Operation
3 : Lamp cover The rib at the back of the lamp cover closes the SW on the T board to ground pin 3 of CN8001.
It is monitored by the DE-micro (pin 94 of IC6902) and turns off the lamp when it is opened.
4 : Fan Fan rotation is detected by "FAN-PROT" and the DE-micro (pin 92 of IC6902) turns off the lamp
when it is "high".
4 : Temp When the temperature sensor on the H4 board detects high temperature, or IIC-E line connector
(CN6022:GI board, CN44:H3board/H4board) is not seated securely, the DE-micro turns off the
lamp.
5 : Lamp driver When the "LAMP-PROT" (pin 95 IC6902) is low, the lamp is not turned on. If the "LAMP-HV-
DET" (pin 96 IC6902) is low at the same time, it is classified as no high voltage of the lamp
driver.
6 : Low B error When no "SETIIV " is detected, pin 129 of IC3002 is low and it turns off the main power.
7 : Audio When DC voltage is detected at the speaker or woofer outputs, pin 128 of IC3002 is low and it
turns off the main power.
8 : D-OVP When overvoltage of "+3.3V" or "+2.5V" is detected, pin 126 of IC3002 is low and it turns off the
main power.
10 : DTL-OVP When no "Q 5V" is detected, pin 127 of IC3002 is low and it turns off the main power.
LAMP : Lamp When the "LAMP-PROT" (pin 95 IC6902) is low, the lamp is not turned on. If the
"LAMP-HV-DET" (pin96 IC6902) is high at the same time, it is classified as no lamp or a dead
lamp.

11
KDF-E55A20/E60A20
KDF-E55A20/E60A20
Self-Diagnosis Block Diagram
(SN 9,000,001 to 9,099,999 and 9,800,001 to 9,899,999 Only)
IC41
94
IIC-E
LAMP-COVER
95
FAN PROT
4:Temp
IC6902
Display Engine u-com
3:Lamp cover
5:Lamp
driver
4:Fan
SW
S8001
T board
Fan1
Fan2
Fan3
FAN1-PRT
FAN2-PRT
FAN3-PRT
CN6000
7:Audio
GI board
Te mp
sensor
2
8
5
92
Lamp
HV-DET
Lamp driver
Fan4
FAN4-PRT
11
96
LAMP-PROT
LAMP-HV-DET
8
13
CN6022
14
14
A8
A14
B14
16
CN6019
CN6017
B1 board
IC3002 TV u-com
128
D_OVP
SP_DC_PROT
LB_ERROR
126
129
127 ATSC_OVP
KD board
CN6029
23
GM board
GM board
CN1609
A14
8:D-OVP
+3.3V
+2.5V
Audio
amp
6:LowB
error
CN1609
B14
SETIIV
Q5V
12:DTL
OVP
5
CN6006
IIC-TV
IIC-TV
H4 board

12
KDF-E55A20/E60A20
KDF-E55A20/E60A20
Self-Diagnosis Block Diagram
(SN 9,100,001 to 9,799,999 and 9,900,001 and Up Only)
94
IIC-E
LAMP-COVER
95
FAN PROT
IC6902
Display Engine u-com
3:Lamp cover
5:Lamp
driver
4:Fan
SW
S8001
T board
Fan1
Fan2
Fan3
FAN1-PRT
FAN2-PRT
FAN3-PRT
CN6000
GKboard
Te mp
sensor
2
8
5
92
Lamp
HV-DET
Lamp driver
Fan4
FAN4-PRT
11
96
LAMP-PROT
LAMP-HV-DET
8
13
CN6022
14
14
A14
B14
16
CN6017
B1 board
IC3002 TV u-com
D_OVP
LB_ERROR
126
129
127 ATSC_OVP
GM board
GM board
CN1609
A14
8:D-OVP
+3.3V
+2.5V
6:LowB
error
CN1609
B14
SETIIV
Q5V
12:DTL
OVP
5
CN6006
IIC-TV
IIC-TV
IC6911

13
KDF-E55A20/E60A20
KDF-E55A20/E60A20
Reading Lamp and Panel time
Use the following to determine the lamp and panel time of a set.
Screen Display Method
To access service mode, press the buttons on the Remote Commander sequentially, in rapid succession, as shown below:
1. Press DISPLAY Channel
5 Volume +
POWER
2. Press JUMP until the PANEL service menu displays.
3. To display the Lamp time, press 2until the OPTION_E category displays.
4. The LampTM is the first item in the OPTION_E category.
(If the LampTM item is not displayed, press 1until the LampTM item displays.)
exam
Item
Hours On/Off Cycle
ple
PANEL NVM OK 9 OPTION_E
0 LAMP 0 Diff 1
LampTM LampCT14 71
Category
The screen displays:
“Total lamp time is 14 hours” and “Total lamp ON/OFF cycle is 71 times”
NOTE: If replacing the lamp, reset the lamp time by pressing Channel 3Mute
ENT .
WRI-EXE(Character color is Red) is momentarily displayed and LampTM is reset to “0”.
5. To display the Panel time, press 1until the PanelTM item displays.
example
PANEL NVM OK 9 OPTION_E
7 SH SFT1 10 Diff 1
PanelTM 14h
The screen displays:
“Total Panel time is 14 hours”
NOTE: You cannot reset the Panel time with the Service menu.
Exiting Service Mode
After completing the changes exit service mode by turning off the set using the Remote Commander or the power switch.

14
KDF-E55A20/E60A20
KDF-E55A20/E60A20
1-1. REAR COVER REMOVAL
SECTION 1: DISASSEMBLY
1-2. OU BRACKET REMOVAL
Thirteen screws
(+BVTP 4x16)
Rear cover
1
OU bracket
One Screw
(+BVTP 4x16)
Two screws
(+BVTP 4x16)
Two screws
(+BVTP 4x16)
1
Three ground wires
5
4
6
2
3

15
KDF-E55A20/E60A20
KDF-E55A20/E60A20
1-3. CHASSIS ASSEMBLY AND FAN REMOVAL
1-4. SERVICE POSITION
Screw
(+BVTP 4x16)
Fan bracket (chassis)
with DC fan
Three screws
(+PTPWH 4x16)
Chassis assembly
Side stay (R)
2
3
4
6
5
1
Pull back on claw, then gently pull out chassis assembly
Chassis assembly
1

16
KDF-E55A20/E60A20
KDF-E55A20/E60A20
1-5. RF ANTENNA SWITCH REMOVAL
1-6. U1 BOARD AND H4 BOARD REMOVAL
U bracket
2
5
RF antenna switch
4
Four Screws (+BVTP 3x12)
2Three Screws (M3x8) P, SW(+)
3Push down on tab to release bracket
Unplug five connectors
1Two Washers
U1 board
Gently pull back on tab to
release U1 board
Gently pull back on tabs
to release H4 board
1
3
One screw
(+BVTP 3X12)
2
The H4 Board is only in SN 9,000,001 to 9,099,999 and 9,800,001 to 9,899,999

17
KDF-E55A20/E60A20
KDF-E55A20/E60A20
1-7. GM BOARD REMOVAL
1-8. A1 BOARD (OR A2 BOARD) AND KD BOARD REMOVAL
1
Remove cables
from purse locks
3
Unfasten two Circuit Board Supports
Gently pull back
on the three clips
on the Pin Connection slots
while slowly lifting the A board
5Gently pull back
on the two clips
on the Pin Connection slots
while slowly lifting the KD board
A1 board KD board
Disconnect two connectors
(CN8003 and CN8008)
and coax cable from tuner
Disconnect two connectors
(CN4705 and CN4702)
4
6
2
6
GM board
4
Claw
5
9 Gently pull back on the three clips
on the pin connection slots
while slowly lifting the GM board.
Disconnect three ground wires
(CN1603, CN1604 and CN1605)
Disconnect three connectors
(CN1611, CN1608 & CN1612)
8Unfasten two Circuit Board Supports
Remove wires from purse locks
1
2
Disconnect the Power cord
from CN1602 connector.
The A1 Board and the KD Board are only in SN 9,000,001 to 9,099,999 and 9,800,001 to 9,899,999
The A2 Board is only in SN 9,100,001 to 9,799,999 and 9,900,001 and up

18
KDF-E55A20/E60A20
KDF-E55A20/E60A20
1-10.GI BOARD (OR GK BOARD) REMOVAL
1-9. DMB ASSEMBLY (Q BOX) AND B1 BOARD REMOVAL
GI board
Disconnect 1 ground wire
(CN6018)
Disconnect 5 connectors
(CN6000, CN6028,
CN6021, CN6023,
and CN6022)
4
1
2
3
Gently pull back on the two clips
while slowly lifting the GI Board.
1
DMB Box Assembly
4Gently pull back
on the two clips
on the Pin Connection slots
while slowly lifting the B1 board
3Remove one screw
(3X12), + BVWHTP
5Remove two screws
(+BVTP 3X12 TYPE2)
2Remove two connectors
(CN3500 and CN3501)
Remove cables from purse locks
B1 board
Disconnect two connectors
and one ground wire
6
Unplug two coax cables
connected to the antenna switch
7
Remove four screws
(+BVTP 3X12)
9
The GI Board is only in SN 9,000,001 to 9,099,999 and 9,800,001 to 9,899,999
The GK Board is only in SN 9,100,001 to 9,799,999 and 9,900,001 and up

19
KDF-E55A20/E60A20
KDF-E55A20/E60A20
1-12.H1 BOARD REMOVAL
Screen mirror block assembly
1
4
2
H1 bracket
H1 board
3
H1 button
H1 board
One screw
(+BVTP 3X12)
Gently pull back on the bottom tab
of the H1 bracket then slide out the H1 board
Disconnect one connector
Using tweezers gently detach the
H1 Bracket Cap
1-11. FAN AND T BOARD REMOVAL
Screw
(+BVTP 4x16)
Duct fan bracket
with DC fan
Screw
(+BVTP 3x12)
T board
2
3
1

20
KDF-E55A20/E60A20
KDF-E55A20/E60A20
1-13.FRONT COVER ASSEMBLY REMOVAL
1-13-1.REPLACING THE LAMP
Use caution when removing the Power Supply Block to not move the Optical Unit Block
7
3
5
1
Pull forward to remove
Unhook the antenna cable
Remove the lamp
4
Power supply block
6
2
Four screws (+BVTP 3x12)
Disconnect two connectors
Two screws (+PWH 4x16)
(to release the cables from the bracket)
One screw (+PWH 4x16)
(to detach the Plug Holder Assembly from the
Lamp Bracket)
NOTE: Do not discard the Plug Holder Assembly
when replacing the Power Supply block.
This part is not included with the
Power Supply assembly.
4
2
3
Gently pull the
Front cover assembly forward.
Note the area of the 2 magnets
holding the cover
One screw
(+BVTP 3X12)
Push towards center of set to unlatch
Cable Cover
1 Remove the two ornamental screws from back of set
Two screws
(+BVTP 3X12 TYPE2)
For detailed instructions on replacing the lamp, see Page 76 of the Operating Instructions manual.
1-14.POWER SUPPLY BLOCK REMOVAL (LAMP DRIVE UNIT)
Be sure the Front Input door is closed before removing the Front Cover Assembly.