Sony kdl 26s2000 ошибка 9

Форум РадиоКот • Просмотр темы — Сони Бравиа — ошибка 9, гугл молчит…

vicar08 wrote:
KDL-26s2020 индикатор на панели мигает 9 раз. Как узнать неисправность, гда взять таблицу кодов ошибок.

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«Правильная постановка задачи важнее даже, чем её решение…»  (Альберт Эйнштейн).

• There is No other components with in this TV that can cause and 8 blinks protection indication.  This indicates a TRIDENT video processor internal failure.  Specially the failure of the scan converter section.  Replace the BU board.

                                                                        BU Board

Protection System

Overall
System Description
The failure protection system (aka. self-diagnostics routines) for the WAX2 chassis
monitors the following circuits for abnormal conditions. If the TV microprocessor
detects a failure it will activate the front panel StandbyLED, which
will flash a unique RED pattern depending on the failure that occurred.
The bullet list below lists all the monitored circuits and their unique flash
pattern.

# 10.5V & Panel 5V Low-Voltage Protection (DCALERT3)
1X Red Power-LED Flash Pattern
# D5V Low-Voltage Protection (DC ALERT 2)
2X Red Power-LED Flash Pattern
# 3.3V & 1.8V Low-Voltage Protection (DC ALERT 1)
3X Red Power-LED Flash Pattern
# Backlight Protection
4X Red Power-LED Flash Pattern
# Overall Power Supply Protection
5X Red Power-LED Flash Pattern
# Audio Output Protection
6X Red Power-LED Flash Pattern
3 Internal Temperature Protection
7X Red Power-LED Flash Pattern
# TRIDENT (Scan Converter) Protection
8X Red Power-LED Flash Pattern

Protection Circuits Functional
Description
NOTE: Make all voltage and signal measurements prior to the TV shuts down,
and goes into the Protection Mode. There is approximiately a 20-second
window before shut down. 

10.5V Low-Voltage & Panel 5V Low-Voltage
Protection (1X Flash Pattern)
The service manual labels this protection mode as DC_ALERT 3. The 10.5V
and Panel 5V supplies are monitored for a low-voltage condition. The 10.5V is
monitored by the 4.7V zener diode D7500 and transistors Q7500 and Q7502 on the
BU-Board. In normal operation D7500 is in the breakdown mode (ON) as long as
the 10.5V supply stays above 4.7V. The zener has a voltage drop of 4.7V leaving
5.8V, which is applied to the base of Q7500 turning Q7500 ON and Q7502 OFF.
With Q7502 OFF 3.1V is developed at IC1001/pin 154 (Main Microprocessor)
through the voltage divider circuit of R7517 and R7518 using the Panel 5V
supply voltage from switching regulator IC7000. If the 10.5V supply drops below
4.7V D7500 will turn OFF, Q7500 will turn OFF and Q7502 will turn ON, and a
ground is applied to IC1001/pin 154 pulling the pin low. Consequently, the Main
Microprocessor detects a 10.5V failure and the Red Standby-LED flashes a 1X pattern
and the TV shuts down.
The Panel 5V is also monitor. The Panel 5V is the supply voltage to the voltage
divder R7517 & R7518. The voltage divder circuit at its mid-point develops
the 3.1V, which is applied to the Main Microprocessor. If the Panel 5V is missing
at the top of the diuvider circuit the 3.1V will go low and the 1X protection
mode is triggered.
D5V Low-Voltage Protection (2X Flash Pattern)
The service manual labels this protection mode as DC_ALERT 2. The D5V
supply is monitored indirectly through the voltage divider consisting of R7515
and R7516 on the BU-Board. IC7005 regulates the 10.5V (from the switching
regulator IC7000) down to 5V. The 5V (or D5V) is then applied to the Main
Microprocessor IC1001/pin 153. If the D5V drops so will the 3.1V at the
mid-point of the voltage divider. Consequently, the Main Microprocessor detects
a D5V failure and the RED Standby-LED flashes a 2X pattern and the TV
shuts down.
3.3V, 2.4V, & 1.8V LVP-Voltage Protection (3X Flash Pattern)The service manual labels this protection mode as DC_ALERT 1. This
protection mode is activated if any one of the following regulators failures.

# IC7001 3.3V Regulator
# IC7002 1.8V Regulator
# IC7004 2.4V Regulator
Each regulator output is monitored by a transistor and a diode. IC7001 is
monitored by Q7504 and D7508; IC7002 is monitored by Q7506 and D7510; IC7004 is
monitored by Q7505 and D7509. The transistors are ON in normal operation,
turned ON by the voltage output of each regulator. With the transistors ON a
ground is applied to the anode of each diode, therefore, each diode is OFF (or
reverse biased). All three diode outputs go to the base of a single transistor
Q7503. The collector of Q7503 is connected directly to the Main Microprocessor
IC1010/pin 163. In normal operation the voltage level at IC1001/pin 163 is
3.1V. If any of the three regulators failure the corresponding transistor
(Q7504, Q7505, or Q7506) will turn OFF, and the ground is removed from the anode
of the corresponding diode (D7508, D7509, or D7510). With the ground removed a
high will be applied to the anode of the diode through the associated pull-up
resistor (R7542, R7543, R7544), and the diode will forward bias, applying a
high to the base of Q7503. The transistor turns ON applying a ground to
IC1001/pin 163 pulling the pin low. Consequently, the Main Microprocessor
detects a regulator failure and the RED Standby-LED flashes a 3X pattern
and the TV shuts down.

Backlight Protection (4X Flash Pattern)
This protection mode monitors the operation of the Backlight Inverter Board and
the Lamps. The Inverter Board is the Lamp power supply, which produces the high
alternating voltage necessary to drive the ColdCathode Fluorescent Lamps (CCFL)
used for the LCD panel backlighting. There are three main causes for the
activation of this protection mode.

# Loss of 18.5V supply to the Inverter Board (at CN6202 on the
G2-Board)
# Loss of 3.2V Backlight ON signal
# Defective Inverter Board Circuits
# Defective Lamp(s)
The following paragraphs are brief descriptions of each failure listed

 Loss
of 18.5V supply to the Inverter Board (at CN6202 on the G2- Board)
The 18.5V is the power supply for the Backlight Inverter board. However, the
18.5V also drives two voltage regulators on the BU-Board .Therefore, if the
18.5V is lost due to a Main Power Supply failure a 5X flash pattern is
generated. The Main Microprocessor generates a 4X flash pattern only
if there is a loss of 18.5V at CN6203. In other words, the Main Power Supply is
functioning OK (producing 18.5V), however, the 18.5V is not making it to
CN6203. There is a poor connection or open circuit in the physical connection
between the G1/G2-Board and the Inverter Board. Consequently, the Backlight
Inverter fails to start, the Panel Detect line goes low (CN7009/pin 3),
and the microprocessor detects a failure.
Loss of 3.2V Backlight ON signal Confirm 3.2V at CN7009/pin 1 on the
BU-Board. The Main Microprocessor on the BU-Board turns on the Backlight
Inverter using the 3.2V Backlight-ON signal. You can measure this
voltage at CN7009/pin 1 on the BU-Board. If the Main Microprocessor fails to
send this signal (rare occurrence) or if there is an open path (confirm secure
& undamaged connectors between the BU-Board and the Inverter Board) to the
Backlight Inverter board then the Panel Detect line goes low (CN8603/pin
4) and the microprocessor generates a 4X flash pattern. Defective
Inverter Board Circuits or Lamp Failure Confirm 18.5V (Power Supply) and
3.2V (Backlight-ON). In the case of an actual Backlight Inverter board circuit
or Lamp failure, the 18.5V and the 3.2V voltages should be OK. Therefore, prior
to shutdown you can measure these voltages to confirm that power supply and
control signal are present. If these two voltages check OK, but the Backlight
does not light and the Panel Detect line goes low (CN8603/pin 4) then
the defect exists on the Backlight Inverter board or a Lamp(s) (Panel Assembly)
has failed. Use the following procedure to determine whether the Backlight
Inverter or the Panel Assembly is the defective component.
Caution: Do not attempt to directly measure the Backlight Inverter Board
output directly. 1000V or greater is present at the outout on initail
power ON.
The best way to check the Inverter Board output is to place your VOM probe on
top of the individual plastic lamp connectors .Set the VOM to AC volts, place
the probe on top of the connector directly above one of the two wires (each
connector feeds two lamps). Place the VOM probe over each wire for proper
measurements. A good output will measure approximately 3VAC.
A bad output will measure aproxiamatey 1VAC or less. If any single output is
bad replace the Backlight Inverter Board. If all Inverter Board outputs are
bad, check the 18V supply voltage from the Main Power supply before replacing
the Backlight Inverter Board. If the 18V is missing check for loose or damaged
connections between the G1/G2-Board and the Backlight Inverter Board. If the
18V is present at the Inverter Board, however, all output are bad then replace
the Backlight Inverter Board.

Overall Power Supply Protection (5X
Flash Pattern)
The purpose of this protection mode is to monitor and indicate a failure of the
Main Power Supply (IC6100) on the G1/G2-Board. The primary voltage monitor is
the 18V. If the Main Power Supply does start or remain running the 18V will not
be developed and the Main Microprocessor will detect an overall power supply
failure. The 18V is applied to the voltage divider consisting of R1031, R1034,
and R1037. The voltage across R1037 (3.1V), which is stabilized and delayed by
C1007 is applied to the Main Microprocessor IC1001/pin82. The presence of the
3.1V indicates a properly functioning Main Power Supply. If the 18V is not
developed for any reason, then the 3.1V is not developed and the Main
Microprocessor detects a power supply failure (5X).
 There is a multitude of failures that can cause
the Main Power Supply shutdown. The following list identifies the possible
failures.

# Failure of the Main Converter IC6100
# Loss of 3.3V Power-ON signal from Main Microprocessor
IC1001/pin 32
# Excessive 19V Supply to the PFC Circuit
# Failure of InRush Relay
# 18.5V Over-Voltage Condition
Main Power Supply Converter IC6100
Confirm that both the 3.3V Power-ON signal and the 18.5V increase, and
stabilize to their respective levels before protection-mode shutdown. The
presence of the 3.3V indicates that the converter IC6100 is most likely getting
the necessary VCC input, and the presence of the 18.5V indicates that the
converter IC6100 is starting and developing the secondary voltages, therefore,
some other fault is shutting the TV down. It is rare that IC6100 will fail.
This IC (MCZ3000D) integrated circuit has been very reliable in many previous
chassis’s.

Loss of 3.3V Power-ON signal from
Main Microprocessor
The Power-ON (or Power 1) signal is generate by the Main Microprocessor
IC1001/pin32 on the BU-Board. The tricky part about troubleshooting this
failure is determining if the Main Microprocessor is failing to generate the
Power-On signal or if one of the two latch circuits (Q6202/Q6204 & Q6105/
Q6107) on the G1/G2-Board is pulling the Power-ON signal low. Notice that there
are two latch circuits located on the G1/G2-Board. These latch circuits connect
directly to the Power-ON signal line. If the Power-ON signal shows no signs of
increasing towards 3.3V then the most likely failure is the Main Microprocessor
IC1001. Before replacing the BU-Board check all connections between the
BU-Board and G1/G2- Board.
If the Power-ON signal increases to 3.3V and then goes to 0V, then one of the
latch circuits are being activated.
NOTE: The Power-ON signal can also be check unloaded. Disconnect
CN6202/CN6203 from the G1/G2-Board and check if the 3.3V is present. If the
3.3V is present, then this indicates that the Latch circuits are activating due
to a failure on the G1/G2-Board and pulling the Power-ON line low. One or more
of the following events can trigger the latch circuits.

# Excessive 19V Supply to the PFC Circuit
# Failure of InRush Relay
# 18.5V Over-Voltage Condition
Loss of 18.5V (at CN7009 to the BU-board)
Confirm connections between G1/G2-Board and the BU-Board for the 18.5V path

Audio Output Protection (6X Flash
Pattern)
The protection circuit (Q7014, Q7015, Q7016, Q7017, Q7018, and Q7021) mounted
on the AU-Board monitors the audio amplifier outputs (speaker lines) for a shorted
condition or for the presence of any DC voltage level (positive
or negative). If either of these conditions is detected the protection
circuit alerts the Main Microprocessor of the failure and the Standby-LED
Flashes a 6X flash pattern.
Internal Temperature Protection (7X Flash Pattern)
The temperature sensor (IC1007) is mounted on the component side of the
BU-Board next to CN1700. IC1007 monitors the internal temperature of the TV
set, and communicates any temperature abnormality to the Main Microprocessor
over the I2C bus. The following parameters affect internal temperature.

# TV Ventilation,
# Local External Temperature (Room Temperature)
# Internal Component Operating Temperatures
In most cases, one of the following actions will solve a temperature failure.
# Clear the TV areas of ventilation
# Relocate the TV set away from any area heating elements
# Provide adequate space between TV cabinet and walls (at least 4”)
# Replace Temperature Sensor IC1007
If the TV set shuts down immediately after turn-on and the Red StandbyLED
indicates a temperature problem (7X flash pattern), then the most likely
failure is the temperature sensor IC1007. The reason for this deduction is that
a actual excessive temperature situation will take time to occur. The internal
TV temperature must increase and IC1007 must detect the excessive temperature,
and then communicate this information. to the main Microprocessor. This whole
process takes time. However, if the temperature sensor (IC1007) itself has
failed, the Main Microprocessor will not be able to communicate with IC1007
when the TV is first turned ON and the TV will, in comparison, immediately shut
OFF.
TRIDENT Protection (8X Flash Pattern)
TRIDENT is the name for the integrated circuit (IC5000) that includes all the
video processing circuitry, including the Scan Converter circuit. This
protection mode monitors the operation of the internal Scan Converter. A
failure of the Scan Converter is communicated over the I2C bus between the
TRIDENT and Main Microprocessor, and a 8X flash pettern will occur.

Поиск и устранение неисправностей

Проверьте, не мигает ли индикатор 1 (режим ожидания) красным светом.

Если мигает

Включена функция самодиагностики.

1 Определите время, в течение которого индикатор 1 (режим ожидания) мигает и перестает

мигать.

Например, индикатор мигает в течение двух секунд, перестает мигать на одну секунду и мигает в

течение двух секунд.

2 Нажмите кнопку 1 на телевизоре (сверху) для его выключения, отсоедините кабель питания

от сети и сообщите специалистам дилерской компании или сервисного центра Sony характер

миганий индикатора (продолжительность и интервал).

Если не мигает

1 См. таблицы ниже.

2 Если проблему устранить не удалось, дальнейшее техническое обслуживание и ремонт

телевизора должны производиться квалифицированным персоналом в сервисном центре.

Изображение

Проблема Причина/Способ устранения

Нет ни изображения

• Проверьте подсоединение антенны.

(темный экран), ни звука

• Подсоедините телевизор к электросети и нажмите кнопку 1

(сверху).

• Если индикатор 1 (режим ожидания) горит красным cветом,

нажмите кнопку «/1.

Нет изображения или

• Проверьте, включено ли дополнительное оборудование, и

информации в меню от

нажимайте кнопку / до тех пор, пока на экране не

оборудования,

отобразится нужный значок входа.

подключенного к разъему

• Проверьте соединение между дополнительным оборудованием и

Scart

телевизором.

Раздвоение или

• Проверьте подсоединения антенны/кабелей.

многоконтурность

• Проверьте расположение антенны и ее направленность.

изображения

На экране виден только

• Проверьте, не сломана и не погнута ли антенна.

“снег” и помехи

• Проверьте, не закончился ли срок эксплуатации антенны (от трех

до пяти лет в обычных условиях, от одного года до двух лет на

морском побережье).

Помехи на изображении

• Установите телевизор подальше от таких источников

(пунктирные линии или

электрических помех, как автомобили, мотоциклы, фены или

полосы)

оптические устройства.

• Дополнительное оборудование следует устанавливать на

некотором расстоянии от телевизора.

• Убедитесь, что антенна подсоединена с помощью прилагаемого

коаксиального кабеля.

• Антенный кабель не должен находиться рядом с другими

соединительными кабелями.

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42

Проблема Причина/Способ устранения

При просмотре телеканала

• Выберите опцию “Руч. настр. прогр.” в меню “Настройка

на изображении имеются

аналоговых каналов” и выполните точную настройку “АПЧ”

помехи

(автоматическую подстройку частоты) для повышения качества

принимаемого изображения (стр. 33).

Отдельные маленькие

• Изображение на экране состоит из точек. Маленькие темные и/

темные и/или яркие точки на

или яркие точки (пикселы) на экране не являются признаком

экране

неисправности.

Отсутствует цветность при

• Выберите опцию “Сброс” в меню “Изображение” для возврата к

просмотре программ

заводским установкам (стр. 23).

Отсутствует цветность или

• Проверьте соединение разъемов Y, PB/CB, PR/CR ввода 3.

цветность искажена при

• Убедитесь в том, что разъемы Y, PB/CB, PR/CR ввода 3

просмотре сигнала через

надежно зафиксированы в соответствующих гнездах.

разъемы Y, PB/CB, PR/CR

ввода 3

Звук

Проблема Причина/Способ устранения

Нет звука, но изображение

• Нажмите кнопку 2 +/– или % (отключение звука).

нормальное

• Убедитесь, что опция “Динамик” установлена в положение

“Вкл.” в меню “Начальная настройка” (стр. 30).

Звук с помехами

• См. причины/способ устранения в разделе “Помехи

изображения” на стр. 42.

Каналы

Проблема Причина/Способ устранения

Дополнительная информация

Невозможно выбрать

• Переключаясь в цифровой или аналоговый режим, выберите

желаемый канал

желаемый цифровой/аналоговый канал.

Некоторые каналы

• Закодированный канал/Канал, доступный только по подписке.

являются пустыми

Подпишитесь на сервис Pay Per View (Плата за просмотр).

• Канал используется только для передачи данных (нет

изображения или звука).

• Свяжитесь с телевещательной компанией для получения

подробной информации о трансляции.

Не появляется цифровой

• Свяжитесь с местным установщиком, чтобы выяснить,

канал

предоставляется ли цифровое вещание в вашей местности.

• Приобретите более мощную антенну.

Продолжение

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43

Общие неисправности

Проблема Причина/Способ устранения

Телевизор автоматически

• Проверьте, не активирована ли функция “Таймер сна” и

отключается (телевизор

проверьте установку “Продолжительность” в меню “Таймер

переходит в режим

включения” (стр. 30).

ожидания)

• Если сигнал принимается, и в режиме телевизора не

выполняются никакие операции в течение 10 минут, телевизор

автоматически переключается в режим ожидания.

Телевизор автоматически

• Проверьте, не активирована ли функция “Таймер включения”

включается

(стр. 30).

Не удается выбрать

• Выберите опцию “Предустановка AV” в меню “Начальная

некоторые источники

настройка” и отмените функцию “Пропуск” для источника

входного сигнала

входного сигнала (стр. 29).

Не работает пульт

• Замените батарейки.

дистанционного управления

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