Sony HCD-DZ777K Service Manual page 29

10. PROTECTION FACTOR (SD DETECTION/
DC DETECTION) IDENTIFICATION TEST MODE
When an error is detected, the FL tube alternately displays
"PROTECTOR h PUSH POWER".
Press the [ ] button.
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r
* Buttons other than the [
"STANDBY" blinks three times on the FL tube.
r
The protection release state (POWER OFF) is established.
(No FL tube display)
Press the [ ] button two times.
r
?/1
The power to the system turns on, and the normal operation is
established. (Restore)
During the protection state:
1. If the AC plug is connected or disconnected during the
protection state, the protection state is released, and the
normal operation is established. (The protection state is not
maintained.)
2. The protection factor is displayed by pressing the
[FUNCTION], [ ] and [
A >
the protection state
(during the "PROTECTOR h PUSH POWER" display).
k When SD is detected: Repeats
"SD DETECT h PROTECTOR".
k When DC is detected: Repeats
"DC DETECT h PROTECTOR".
PL: SD detection
When the "L" output from the SD (shutdown) port on the
S-MASTER POWER Driver Shutdown and voltage descent
(15V or less) of 30V power supply (PVDD) are detected.
DC detection
When the "L" output from the power/speaker error detection
circuit (DC detection port) is detected for two seconds
continually, the power system other than that of the FL tube
is turned off, and the protection state is established.
HCD-DZ265K/DZ266K/DZ270K/DZ570K/DZ777K
] button are invalid.
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] buttons at the same time during
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