Sony Trinitron KV HW212M60 - Circuit Diagram - LED blinking codes
Applicable to:
KV-HW212M60 RM-W101 Thailand SCC-U94W-A
KV-HW212M80 RM-W101 ME SCC-U90W-A
KV-HW212M80 RM-W101 Saudi Arabia SCC-V10P-A
KV-HW212M80/H RM-W101 Saudi Arabia SCC-V10Q-A
(DOLPHIN GREY)
KV-HW212M81 RM-W100 ME SCC-U90X-A
KV-HW212M83 RM-W101 ME SCC-U90Y-A
KV-HW212M83/H RM-W101 Saudi Arabia SCC-V10R-A
(DOLPHIN GREY)
KV-HW212P52 RM-W101 Thailand SCC-V94V-A
Processor
Tuner
Audio amplifier
Power supply regulator [SMPS]
The units in this manual contain a
self diagnostic function. If an error occurs, the STANDBY (1) indicator will
automatically begin to flash. A description of the self-diagnosis function is
explained in the instruction manual. The number of times the STANDBY (1)
indicator flashes translates to a probable source of the problem. 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.
When an errors occurs, the STANDBY
(1) indicator will flash a set number of times to indicate the possible cause
of the problem. If there is more than one error, the indicator will identify
the first of the problem areas. Result
for all of the following diagnosis items are displayed on screen. No error has occurred if the screen displays a "0".
If a +B over-current is detected,
stoppage of the vertical deflection is detected simultaneously. The symptom
that is diagnosed first by the micro-controller is displayed on the screen.
LED blinking codes
+B
overcurrent – OCP > Occurs when an overcurrent on the +B(135V) line
is detected by pin 32 of IC001 (A board). If the voltage of pin 32 of
IC001 (A board) is more than 4V, the unit will automatically go to
standby.
V-PROTECT > Occurs when an absence of the vertical deflection pulse is detected by pin 13 of IC001 (A board).
IK –
AKB > If the RGB levels* do not balance within 15 sec after the
power is turned on, this error will be detected by IC001 (A board). TV
will stay on, but there will be 5 times LED blinking.
POWER
SUPPLY Not Good (+5V) for VIDEO PROCESSOR > Occurs when IC001
internal HV protect detects an abnormal H-Pulse (frequency) due to
improper power supply to IC001. TV cuts off high voltage power of anode
CRT. No picture will be detected. eg: IC602, IC604 go faulty.
HANDLING OF SELF-DIAGNOSTIC SCREEN DISPLAY
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".
Unless
the result display is cleared to "0", the self-diagnosis function will
not be able to detect subsequent faults after completion of the repairs.
Clearing the result display
To
clear the result display to "0", press buttons on the remote commander
subsequent as shown below when the self-diagnostic screen is being
displayed.
Quitting Self-diagnostic screen
To quit the entire self-diagnostic screen, turn off the power switch on the remote commander or the main unit.
STOPPING THE STANDBY INDICATOR FLASH
Turn
off the power switch on the TV main unit or unplug the power cord from
the outlet to stop the STANDBY indicator from flashing.
SELF-DIAGNOSTIC SCREEN DISPLAY
For
errors with symptoms such as "power sometimes shuts off" or "screen
sometimes goes off" that cannot be confirmed, it is possible to bring up
past occurrences of failure on the screen for confirmation.
To Bring Up Screen Test
In standby mode, press buttons on the remote commander sequentially in rapid succession as shown below:
Display => Channel-5 => Volume (--) => Power
