Panasonic NR-B53V2 - Test Mode; 8.1 Compulsion FC Defrost Mode; 8.2 Compulsion PC Defrost Mode; 8.3 Change Compressor Rotation Speed

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8 Test Mode
Each test mode needs to perform the following procedures in
common.
1. Plug off or power supply off.
2. Power supply on after short-circuiting the appointed
positions.
3. Test mode ends, plug off or power supply off and remove
the short-circuiting points.
8.1. Compulsion FC Defrost Mode
Compulsion FC defrost: To be making short-circuit of No.75 pin
(TEST 1) and GRD in IC1.
• Normal control the same, without pre-cooling action, FC
defrost mode begins.
• When FC defrost mode ends, changes the normal control
mode.
8.2. Compulsion PC Defrost Mode
Compulsion PC defrost: To be making short-circuit of No.70 pin
(TEST 4) and GRD in IC1.
• Normal control mode the same, without pre-cooling action,
PC defrost mode begins.
• When PC defrost mode ends, changes the normal control
mode.
8.3. Change the Rotation Speed of
Compressor
To fix the rotation speed of compressor: To be making short-
circuit of No.76 pin (TEST 0) and GRD in IC1. Then press " "
button one by one.
Rotation speed of compressor can select definite revel from R1
to R6.