Panasonic NR-BY552XS, Service Manual

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4. DISPLAY SPECIFICATION

NR-BY602

DISPLAY

QUICK FREEZING
BUTTON

FREEZING CONTROL
BUTTON

IN-PROCESS INSPECTION

MANUAL DEFROST

Hold down QUICK FREEZING BUTTON for over a sec.

Operate the following controls within 3 sec., within 30 sec., after power-on 
while PC and FC door are open.

QUICK FREEZING BUTTON            FREEZER CONTROL BUTTON
           QUICK FREEZING BUTTON

START
CONDITION

AUTOGNOSIS

Indicate AUTOGNOSIS in which case abnormal condition.

During in-process inspection. 

NOISE MODE

For 45 sec., of the start of IN-PROCESS INSPECTION

JUDGEMENT

①

Hold down QUICK FREEZING BUTTON for over a second. 

     (Manual defrost)

②

After 4 hours (Defrost start)

END
CONDITION

COMP   
FC FAN 
HEATER
LED
         

: R 6 (71rps)
: VF4 (Ultrahigh Speed)
: DEFROST HEATER OFF
: ECONAVI LED and FREEZER LED [ NORMAL ]
  BRINKING (ON_1sec/OFF_1sec)

COMP

: R 7 (80rps)

CONTENTS
FOR CONTROL

PROCESS INSPECTION

NR-BY552 / NR-BY602

CONTENTS

INSPECTION OF TEMP.

For 30 min., of the start of IN-PROCESS INSPECTION

Normal or abnormality is displayed according to the range of drop of FCC
ALL FREEZER LED LIGHTING..........GOOD
ALL FREEZER LED BRINKING..........BAD

JUDGEMENT

INSPECTION OF 
ILLUMINANCE SENSOR

Contents of discussion

    Illuminance sensor will be added. Therefore, an inspection of whether to be able to operate normally is necessary.
    < In-process inspection of illuminance sensor >

① 

ECONAVI LED blinks at the start of in-process inspection            check whether ECONAVI LED blinks.

④ 

As long as the illuminance sensor is normal, ECONAVI LED goes out            check whether ECONAVI LED goes out.

③ 

Lighting of illuminance sensor shall be varied manually or automatically after the completion of aging. (If there is

     input variation corresponding to a dark area and a bright area, microcomputer judges that as normal)
     In Japan, a dark area and a bright area have been created in the place for inspection process.

② 

ECONAVI LED lights up after 1 min., of the start of in-process inspection (because if there is less input variation,

     microcomputer judge that as abnormal)            check whether ECONAVI LED lights up.

During IN-PROCESS INSPECTION

After 1 min., of the start of IN-PROCESS INSPECTION.
Abnormality is judged according to variation width of input voltage of
illuminance sensor.
ECONAVI LED EXTINCTION..........GOOD
ECONAVI LED LIGHTING...............BAD

JUDGEMENT

１

１

１

１

１

１

１

１

FREEZER

LED (3 pcs)

QUICK FREEZING

LED

ECONAVI

LED