Err 80 sharp ошибка

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Check
of the detection line and solution

NOTE: If the microprocessor detects failures of 1), 2) and 3) above, it does
not operate protectively when its PROTECT, and +B CHECK detection lines are
disconnected.  When these failures are
caused by output short-circuit of each regulator, components and PWB of the
regulator may burn
out. If the cause is not clear, do not disconnect the detection line.
(Even if any failure is detected, conduction is available for 0.5 second. You
can check conduction by an oscilloscope, etc. 
However, a tester is not available due to rapid rise and decay of
voltage.)

When
output voltage of each regulator drops abnormally.
Connect the oscilloscope to the regulated output of the regulator and power on
the system. If the voltage is significantly lower than that shown in the
circuit diagram (approx. 1.5 V or less), the regulator itself and the
destination circuit are suspected.

Failure
Detection Identification Using STANDBY LED

Identification
format using STANDBY LED
If any failure is detected, STANDBY LED blinks red after power off. You can
identify the failure state by checking which LED output number from the frame
head is blinking 4 times each for 2 seconds.

Normally,
LED light up for 2 seconds and light off for 1 second on a 3-second cycle (6
times from No. 1 to No. 6). For No.7, LED light off for 3 seconds, showing the
frame end (for recognition of the frame head).
In No. 2, LED blinks alternately at shorter intervals than usual for failure
identification. For failure status, refer to the appendix, “STAND-BY LED Error
Message”

Failure detection

1. SYS-PROTECT detection: To detect failure of the power supply circuit (except the 1.8 V power supply circuit).

2. B_CHECK detection: To check timing at power ON/OFF and detect over voltage and reduced voltage of the primary AC power after the power is turned on.

SYS-PROTECT detection => immediate power shut-down; Identification No.1 blinking

B_CHECK detection => immediate power shut-down; Identification No.2 blinking in case of over voltage No blinking in case of reduced voltage.

AVCK detection => immediate power shut-down; Identification No.3 blinking

AMP_SW_PROT detection => immediate power shut-down; Identification No.6 blinking.

Error messages

Disassemble procedure

SMPS circuit diagram

ASPM Test Mode (For EU Destination)

At Tuner RDS ASPM operation need to be confirm for EU(H) model only.

Power-ON in TUNER function, and scanning frequency from 105.00MHz — 108.00MHz.

And RDS station Preset Memory maximum 3 stations.

TEST
Mode Operation
Power ON in TUNER Function 106.50MHz FM Stereo Band. At same time Only Preset
No. ch1 — ch3 leave blank and all ch4 — ch40 memory at 87.50MHz FM Stereo Band.
With the press of ASPM key, ASPM operation will start at 105.00MHz
frequency.  If RDS station received
Preset will memory from ch1. (There is no need to memory PS name in ASPM Test
Mode. If preset change during Test Mode Frequency will be display first)
Scan will stop after reach frequency 108.00MHz, and return to frequency
106.50MHz FM Stereo.
To confirm Memory content display will show Preset Number and frequency for
ch1until ch3. After display is confirmed frequency will return to 106.50MHz FM
STEREO. (Display method same with Tuner display during Normal POWER ON.)

If
ASPM key is press again, ASPM operation will start from 2 until 5.
While scanning if 3 station memorized, Scanning will stop and operation 4 and 5
will take place.
Afterward, even if ASPM key input detects ASPM operation will not be execute.
«__END__» displayed and operation canceled.

Other
then above, operations for ASPM are same with User operation. So, when 1st time
scan with same PI code Station with most strong signal will be memory and will
not be memory many time. For 2nd and more station with same frequency will not
be memory.
But, if different station with same PI code (same PI with different frequency
station), station one with most strong signal will be memory.
So, station that already memorized before scan will be ignore.  Therefore, even station with same same PI
code after 3 times ASPM scan; it is possible that, 3 station will be memorized
in Signal Strong order.
After Test Mode end only Tuner preset memory will be reset and set to default.
Others Memory, no need to be initializing.