Sony BRAVIA KDL-40Z4500 User manual

D846660B279CC0D5520DEF8E80C6FD0B0509C3DE5F2E1AA671B63DA146255667FE11BD8887335EC9
SERVICE MANUAL
EG1L CHASSIS
LCD Digital Colour TV
MODEL
KDL-40Z4500
KDL-46Z4500
KDL-52Z4500
COMMANDER
RM-SD001
RM-SD001
RM-SD001
DEST.
Chinese
Chinese
Chinese
MODEL COMMANDER DEST.
RM-SD001 KDL-40Z4500/46Z4500/52Z4500

D846660B279CC0D5520DEF8E80C6FD0B0509C3DE5F2E1AA671B63DA146255667FE11BD8887335EC9
KDL-40/46/52Z4500 (CH) 2
SPECIFICATIONS
System
Channel coverage
Input/Output jacks
1, 2, 3
576p, 576i, 480p, 480i
Audio: Two channel linear PCM
32, 44.1 and 48 kHz, 16, 20 and 24 bits
Analogue audio input (minijack): 500 mVrms, 47 kilohms (HDMI IN 3 only)
AUDIO OUT (OPTICAL))
Power and others
Dimensions*
(w ×h×d)
Mass*
Model name KDL-46Z4500 KDL-40Z4500KDL-52Z4500
Panel system LCD (Liquid Crystal Display) Panel
TV system Analogue: D/K, I, B/G, M
Digital: GB20600-2006
Colour system Analogue: PAL, PAL60, SECAM, NTSC3.58, NTSC4.43
Digital: MPEG-2 MP@HL, MP@ML
Digital: GB20600-2006
D/K: VHF: C1 to C12, R1 to R12/ UHF: C13 to C57, R21 to R60/
CATV: S01 to S03, S1 to S41, Z1 to Z39
I: UHF: B21 to B69/ CATV: S01 to S03, S1 to S41
B/G: VHF: E2 to E12/ UHF: E21 to E69/ CATV: S01 to S03, S1 to S41
M: VHF: A2 to A13/ UHF: A14 to A79/ CATV: A-8 to A-2, A to
W+4, W+6 to W+84
Analogue:
Sound output 8.5 W + 8.5 W, 11 W (Woofer) (as distortion of 7%)
Antenna/Cable 75 ohm external terminal for VHF/UHF
(S VIDEO) 1 S video input (4-pin mini DIN)
(VIDEO) 1, 2, 3 Video input
(HD/DVD IN) 1/ 2 Supported formats: 1080p (50/60 Hz), 1080i (50/60 Hz), 720p (50/60 Hz),
576p, 576i, 480p, 480i
Y: 1 Vp-p, 75 ohms, 0.3V sync negative/P
B /C B : 0.7 Vp-p, 75 ohms/
P
R /C R : 0.7 Vp-p, 75 ohms
(AUDIO) Audio input: 500 mVrms, 47 kilohms
(HDMI IN) 1, 2, 3 Video: 1080/24p, 1080p (50/60 Hz), 1080i (50/60 Hz), 720p (50/60 Hz),
(VIDEO) Video output
(AUDIO OUT) Audio output
(PC IN) (RGB) PC Input (D-sub 15-pin)
G: 0.7 Vp-p, 75 ohms, non Sync on Green/B: 0.7 Vp-p, 75 ohms/
R: 0.7 Vp-p, 75 ohms/HD: 1-5 Vp-p/VD: 1-5 Vp-p
PC audio input (minijack)
(Headphones) Headphones jack
DMPORT DIGITAL MEDIA PORT
(DIGITAL Digital optical jack
USB USB port
LAN
10BASE-T/100BASE-TX connector (Depending on the operating environment
of the network, connection speed may differ. 10BASE-T/100BASE-TX
communication rate and communication quality are not guaranteed for this TV.)
Power Requirements 220 V AC, 50 Hz
Viewing Screen Size (diagonal)* 132 cm (52 inches) 117 cm (46 inches) 102 cm (40 inches)
Display Resolution 1,920 pixels (horizontal) ×1,080 lines (vertical)
Power Consumption 320 W 283 W 235 W
Standby Power Consumption** Less than 0.20 W (20 W when “ (Quick Start)” is set to “ (ON) ”)
with Stand (mm) 1,281 ×882 ×346 1,140 ×790 ×307 1,005 ×705 ×279
without Stand (mm) 1,281 ×839 ×135 1,140 ×749 ×132 1,005 ×666 ×128
with Stand (kg) 43.5 34.0 27.0
without Stand (kg) 36.5 29.5 23.5
Specified standby power is reached after the TV finishes necessary internal processes.
Dimensions and mass are approximate values.
*
**

D846660B279CC0D5520DEF8E80C6FD0B0509C3DE5F2E1AA671B63DA146255667FE11BD8887335EC9
KDL-40/46/52Z4500 (CH) 3
*
**
Design and specifications are subject to change without notice.
PC input signal reference chart for (PC IN) (RGB)
• This TV’s PC input does not support Sync on Green or Composite Sync.
• This TV’s PC input does not support interlaced signals.
• This TV’s PC input supports signals in the above chart with a 60 Hz vertical frequency.
Productusage condition
Display Spec
Definition
(TV Line)*
Color gamut* 32 % **
Resolution Horizontal
frequency (kHz)
Vertical
frequency (Hz) Standard
Signals Horizontal
(Pixel)
×Vertical
(Line)
VGA 640 ×480 31.5 60 VGA
640 ×480 37.5 75 VESA
720 ×400 31.5 70 VGA-T
SVGA 800 ×600 37.9 60 VESA Guidelines
800 ×600 46.9 75 VESA
XGA 1024 ×768 48.4 60 VESA Guidelines
1024 ×768 56.5 70 VESA
1024 ×768 60.0 75 VESA
WXGA 1280 ×768 47.4 60 VESA
1280 ×768 47.8 60 VESA
1280 ×768 60.3 75
1360 ×768 47.7 60 VESA
SXGA 1280 ×1024 64.0 60 VESA
Refer to SJ/T11348-2006 <Methods of measurement for digital television flat panel displays>.
These values are required by SJ/T11343-2006 <General specification for digital television LCD displays> in normal
temperature.
PC input signal reference chart for (HDMI IN) 1, 2, 3
Resolution Horizontal
frequency (kHz)
Vertical
frequency(Hz) Standard
Signals Horizontal
(Pixel)
×Vertical
(Line)
VGA 640 ×480 31.5 60 VGA
SVGA 800 ×600 37.9 60 VESA Guidelines
XGA 1024 ×768 48.4 60 VESA Guidelines
WXGA 1280 ×768 47.4 60 VESA
1280 ×768 47.8 60 VESA
SXGA 1280 ×1024 64.0 60 VESA
Model name KDL-46Z4500 KDL-40Z4500KDL-52Z4500
Environment Temperature 5°C - 35°C
Humidity 20% - 80%
Air Pressure 86 kPa - 106 kPa
Luminance* 350 cd/m2**
Contrast* 150:1 **
Viewing angle (L0/3)* Horizontal 120°,
Vertical 80°
analog RF Horizontal 350, Vertical 400 TVL**
SDTV Horizontal 450, Vertical 450 TVL**
HDTV Horizontal 720, Vertical 720 TVL**
Horizontal 110°, Vertical 80°
Audio characteristic* Sound pressure THD in rated input 10%**
Smearing time of motion picture* 20 ms **

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KDL-40/46/52Z4500 (CH) 4
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!!
Replace all components with Sony parts whose part numbers
appear as shown in this manual or in supplements
published by Sony.
WARNINGS AND CAUTIONS SAFETY-RELATED COMPONENT
WARNING
It is essential that all critical parts be replaced only with the part
number specified in the electrical parts list to prevent electric
shock, fire, or other hazard.
NOTE: Do not modify the original design without obtaining
written permission from the manufacturer or you will
void the original parts and labor guarantee.
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).

D846660B279CC0D5520DEF8E80C6FD0B0509C3DE5F2E1AA671B63DA146255667FE11BD8887335EC9
KDL-40/46/52Z4500 (CH) 5
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.
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
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osed Meta
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S
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5
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F
Earth
G
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AC
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t
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o
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d-water Pi
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.

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KDL-40/46/52Z4500 (CH) 6
STANDBY
LED
2 sec
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 indicate the possible cause of the problem.
If there is more than one error, the LED will identify the first of the problem areas.
Result for all of the following diagnostic items are displayed on screen.
If the screen displays a “0”, no error has occurred .
Number of times STANDBY
LED (Red) flashes Monitoring Items Diagnostic Item Description
2 times DC_DET Main Supply Voltage (12V) Error.
6 times PANEL_DET Panel detect Error.
7 times TEMPERATURE monitor an Increase of an Inside-temperature.
8 times AUDIO Audio error (SP protect).
9 times HFR High Frame Rate Error.
10 times DEF DEF (Digital Front End module) Error.
11 times NVM EEPROM Error (not read/write availble).
12 times I2C VCT I2C Bus Error.
13 times BALANCER Panel Balance Error.
14 times HDMI HDCP cannot be setup correctly.
15 times TUNER If circuit of PLL circuit do not respond to I2C commands.
16 times I2C CH1 I2C CH1Error in MOUTON.
17 times I2C CH0 I2C CH0 Error in MOUTON.
18 times DIGITAL DEMOD No Acknowledge detected.
19 times USB USB over current detected.
20 times CI CI Error
21 times VCT No DPI-I2C
22 times MSP MSP3410G IC does not respond to I2C commands.
DISPLAY OF STANDBY LIGHT FLASH COUNT
STOPPING THE STANDBY FLASH
Turn off the power switch on the TV main unit or unplug the power cord from the outlet to stop the STANDBY LED for flashing.

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KDL-40/46/52Z4500 (CH) 7
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:
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 result display
To clear the result display to “0”, press button on the remote commander sequentially as shown below when the diagnostic screen is being
displayed.
<Delection of Error Count and Error History>
Press “8” button ,Press “-” button
<Delection of Panel Operation Time>
Press “7” button ,Press “-” button
Quitting Self-diagnostic screen
To quit the entire self-diagnostic screen, turn off the power switch on the remote commander or the main unit.
BALANCER
POWER
PANEL
NVM
NC
HDMI
DIGITAL
TUNER
SOUND
0
0
0
2
1
0
0
0
0
1/3
Monitoring Items
Error Count Record
[ SELF-DIAGNOSTIC SCREEN DISPLAY ]
DC_ALERT1
DC_ALERT2
RTC
DC_ALERT2
DEMOD
USB
CI
AU_PROT
DC_ALERT
0
0
0
2
1
0
0
0
0
VCTP
Reset
0
0
2/3
3/3

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KDL-40/46/52Z4500 (CH) 8
TABLE OF CONTENTS
SPECIFICATIONS .................................................... 2
SAFETY CHECK-OUT ............................................. 5
SELF DIAGNOSIS FUNCTION ................................ 6
TABLE OF CONTENTS ........................................... 8
TROUBLESHOOTING ............................................. 9
1. TRIAGE CHART ......................................................... 9
2. FLOW CHART ........................................................... 10
3. No Power (Flow Chart_B) .......................................... 11
4. Self Diagnosis ............................................................. 12
4-1. Self Diagnosis (Flow Chart_C) ............................ 13
4-2. DC_DET (RED 2 times blink) ............................. 14
4-3. Backlight Error (RED 6 times blink) ................... 14
4-4. Temp Error (RED 7 times blink) ......................... 15
4-5. Audio Error (RED 8 times blink) ......................... 15
4-6. HFR Error (RED 9 times blink) ........................... 16
4-7. DEF Error (RED 10 times blink) ......................... 16
4-8. NVM Error (RED 11 times blink) ....................... 16
4-9. I2C Error (RED 12 times blink) ........................... 16
4-10. Balancer Error (RED 13 times blink) .................. 17
4-11. HDMI Error (RED 14 times blink) ...................... 17
4-12. Tuner Error (RED 15 times blink) ....................... 17
4-13. I2C-CH1 Error (RED 16 times blink) .................. 18
4-14. I2C-CH0 Error (RED 17 times blink) .................. 18
4-15. Digital modulator Error (RED 18 times blink) .... 18
4-16. USB Error (RED 19 times blink) ......................... 19
4-17. VCTP Error (RED 21 times blink) ...................... 19
5. Audio Problem (Flow Chart_D) ................................. 20
6. Video Ploblem (Flow Chart_E) .................................. 21
BLOCK DIAGRAM ................................................. 22
SPARE PARTS LIST ............................................. 23
(1) KDL-40Z4500 .............................................................. 23
(2) KDL-46Z4500 .............................................................. 24
(3) KDL-52Z4500 .............................................................. 25
PACKING MATERIALS ......................................... 26
(1) KDL-40Z4500 .............................................................. 26
(2) KDL-46Z4500 .............................................................. 27
(3) KDL-52Z4500 .............................................................. 28

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KDL-40/46/52Z4500 (CH) 9
TROUBLESHOOTING
1. TRIAGE CHART
Reference Symptoms - (dead set)
26781011121314151617181921
No Power
Blinks Blinks Blinks Blinks Blinks Blinks Blinks Blinks Blinks Blinks Blinks Blinks Blinks Blinks Blinks
BGC COMPL
D5 COMPL (52")
D4 COMPL (52")
G6 COMPL
Panel Module
Flowchart Reference CCCCCCCCCCCCCCC B
Problem Power_ Back I2C I2C I2C D
DET Light TEMP Audio DFE NVM VCT Balancer HDMI Tuner CH1 CH0 Demod USB VCTP
Reference Video - distorted or missing
No Video No No Video No
BL OK Video BL OK Tuner No No
OSD OK No BL No OSD Video OK HDMI Audio
BGC COMPL
D5 COMPL (52")
D4 COMPL (52")
G6 COMPL
Panel Module
Flowchart Reference EEEEED
Problem
: Doubtful part
: just a few possibility

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KDL-40/46/52Z4500 (CH) 10
2. FLOW CHART
Troubleshooting
YES
Set Power NO See
3. No Power (Chart_B)
See
5. Audio Problem (Chart_D)
See
6. Video problem (Chart_E)
Audio Video
Red blinks
LED
Green
See
4. Self Diagnosis
(Chart_C)

D846660B279CC0D5520DEF8E80C6FD0B0509C3DE5F2E1AA671B63DA146255667FE11BD8887335EC9
KDL-40/46/52Z4500 (CH) 11
No
207-253VAC
Inlet on Power Board
Yes
3.3VDC
(CN6401 3Pin on
BGC board)
NO
Power Board
(No STBY3.3V)
YES
NO
YES
AC cable or AC inlet
No Power
(No relay clicks)
Does Power
button work?
BGC board
3. No Power (Flow Chart_B)
Switch Unit

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KDL-40/46/52Z4500 (CH) 12
VCT I2C Bus Trouble.I2C Error VCT12 times
DEF (Digital Front End Module) Trouble.Digital Error10 times
Audio Trouble.Audio Error (SP Protection)8 times
High Frame Rate Error.HFR Error9 times
Monitor an Increase of an Inside-Temperature.Internal Temperature Error7 times
Backlight Trouble.Panel Det Error6 times
Main Supply Voltage Trouble.DC_DET (12V Main Voltage)2 times
Contents
Display
(Self Diagnosis mode)
Red LED
Blink
When self diagnosis happens, STBY (Red) LED blinks and the history can be
seen on display by self diagnosis mode.
4. Self Diagnosis
EEPROM Error (not read/write available).NVM Error11 times
No Acknowledge detected.Digital Demod18 times
I2C Ch1 Error in MOUTON.I2C CH1 (MOUTON TAS)16 times
HDCP cannot be setup correctly.HDMI Error14 times
If circuit or PLL circuit do not respond to I2C commands.Tuner Error15 times
13 times
I2C Ch0 Error in MOUTON.I2C CH0 (MOUTON NVM/RTC)17 times
Panel Balance Trouble.Balance Error
MSP3410G IC does not respond to I2C commands.MSP Error22 times
CI Trouble.CI Error20 times
USB over current detected.USB Error19 times
No DPI-I2CVCT Error21 times

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KDL-40/46/52Z4500 (CH) 13
NO
2 times
YES
See
4-2. DC_DET
RED LED Blinks
NO
6 times
YES
See
4-3. Backlight Error
NO
7 times YES
See
4-4. Temp Error
NO
13 times
YES
See
4-10. Balancer Error
14 times
YES
See
4-11. HDMI Error
NO
8 times YES
See
4-5. Audio Error
4-1. Self Diagnosis (Flow Chart_C)
NO
15 times
YES
See
4-12. Tuner Error
NO
16 times
YES
See
4-13. I2C-CH1 Error
NO
10 times
YES
See
4-7. DEF Error
NO
11 times
YES
See
4-8. NVM Error
NO
12 times YES
See
4-9. I2C Error
NO
17 times
YES
See
4-14. I2C-CH0 Error
18 times
YES
See
4-15. Digital modulator Error
NO
19 times
YES
NO
21 times
YES
See
4-17. VCTP Error
See
4-16. USB Error
NO
9 times YES
See
4-6. HFR Error

D846660B279CC0D5520DEF8E80C6FD0B0509C3DE5F2E1AA671B63DA146255667FE11BD8887335EC9
KDL-40/46/52Z4500 (CH) 14
4-2. DC_DET (RED 2 times blink)
• This indicates DC_DET of Power Board.
• 12V line on Power Board.
•MOUTON micro (on BGC board) Pin6 detects POWER_DET and shuts down chassis power to standby
status.
MOUTON micro Pin6 Normal condition: 1.3V - 2.5V
Error case: lower than 1.3V or higher than 2.5V
–Replace Power Board.
4-3. Backlight Error (RED 6 times blink)
• This indicates panel power circuit error such as inverter.
• MOUTON micro (on BGC board) Pin40 detects PANEL_DET and shuts down chassis power to
standby status.
MOUTON micro Pin40 Normal condition: High / Error case: Low (lower than 0.8V)
– Replace Panel or Power/Inverter Board .

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KDL-40/46/52Z4500 (CH) 15
4-4. Temp Error (RED 7 times blink)
• This indicates high temperature inside chassis.
IC5507 on BGC board is monitoring temperature.
IC5507 is controlled by MOUTON micro.
• When it happens:
– Check chassis environment.
– Check around IC5507 and replace BGC board if temperature monitoring circuit
has problem.
– Check panel.
4-5. Audio Error (RED 8 times blink)
• This indicates Audio Error (Protection).
• It happens:
– IC8200 on BGC board, Audio Amp detects over current, thermal shut down
and/or low voltage of itself.
– DC voltage detected for audio line.
– MOUTON micro Pin5 Normal condition: High / Error case: Low
• Check UNREG15V at CN6401 Pin4 and Pin5 on BGC board
.
And F3401 on BGC board has 13V or not.
• Check above and replace BGC board.

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KDL-40/46/52Z4500 (CH) 16
4-7. DEF Error (RED 10 times blink)
• This indicates DEF communication error.
• [ communication error ]
–TVM micro (on BGC board) is communicating with EMMA3SL (on BGC board).
• Check above and replace BGC board
.
4-8. NVM Error (RED 11 times blink)
• This indicates MOUTON NVM communication error.
• MOUTON micro (on BGC board) is communicating with NVM (on BGC board) .
• Check above and replace BGC board.
4-9. I2C Error (RED 12 times blink)
• This indicates I2C communication error.
• VCTP micro (on BGC board) is communicating with each devices (on BGC board).
• Check above and replace BGC board .
4-6. HFR Error (RED 9 times blink)
• This indicates HFR Communication error.
• [ HFR Communication error ]
Mouton (IC5505) micro (on BGC board) is communicating with T-con board.
• Check above and replace BGC board or LVDS harness (between BGC board and T-con board.

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KDL-40/46/52Z4500 (CH) 17
4-10. Balancer Error (RED 13 times blink)
• This indicates panel power circuit error such as inverter.
• MOUTON micro (on BGC board) Pin81 detects PANEL_DET and shuts down chassis power
to Standby status.
MOUTON micro Pin40 Normal condition: High / Error case: Mid (0.85 - 2.65V)
• Replace Panel or Power/Inverter board.
4-11. HDMI Error (RED 14 times blink)
• This indicates HDCP error.
• HDMI setting trouble matter on BGC board.
• Check above and replace BGC board.
4-12. Tuner Error (RED 15 times blink)
• This indicates Tuner error.
• VCTP and EMMA3SL micro (on BGC board) is communicating with Tuner
(TU2200) on BGC board.
• Check above and replace BGC board.

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4-13. I2C-CH1 Error (RED 16 times blink)
• This indicates I2C communication error.
• MOUTON micro (on BGC board) is communicating with Audio processor
(IC3201) on BGC board.
• Check above and replace BGC board.
4-14. I2C-CH0 Error (RED 17 times blink)
• This indicates I2C communication error.
• MOUTON micro (on BGC board) is communicating with Real time clock
(IC5502) on BGC board.
• Check above and replace BGC board.
4-15. Digital modulator Error (RED 18 times blink)
• This indicates Tuner error.
• EMMA3SL micro is communicating with inside of the Tuner
(TU2200) on BGC board.
• Check above and replace BGC board.

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4-16. USB Error (RED 19 times blink)
• This indicates USB error.
• EMMA3SL micro found out USB over current detection on BGC board.
• Check above and replace BGC board.
4-17. VCTP Error (RED 21 times blink)
• This indicates VCTP error.
• VCTP micro (IC4701) does not work normaly.
• Check above and replace BGC board.

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Here is trouble shooting flow related audio.
Audio problem
Only
Speaker out?
YES
NO
UI setting
correct?
Volume, SP off/On
HP Link
Analog
Channel
Problem?
Digital
Channel
Problem?
HDMI
Problem?
Set correctly or
reset by menu.
Check
Speaker or BGC board
NO
YES
NO NO
Check
BGC board
Check
BGC board
Check
BGC board
YES YES YES
NO Check
BGC board
5. Audio Problem (Flow Chart_D)