Sony HBD-DZ330, Service Manual

Page: 20 / 92

HBD-DZ330/DZ710/DZ730
20
6. D.C.A.C. (AUTOMATIC ACOUSTIC FIELD CALIBRA-
TION) TEST MODE
Procedure:
1. Press the [
?/1
] button to turn the power on.
2. Press the [FUNCTION] button to set the function “ DVD/CD”.
3. Insert Calibration mic (ECM-AC2) supplied as an accessory
into the A.CAL MIC jack.
4. Press three buttons [
x
], [
Z
] and [REC TO USB] simultane-
ously.
5. Con
fi
rm that the following are shown on the display panel.
The JACK inserted/non-inserted detection display and the dis-
play.
* * * * * * * *
1
MIC detection condition
NON : Not detected
IN : Detected
2
Presence of DIGITAL sound data input to the microprocessor
NG: Input absent
OK: Input present
3
AD value (255h) of MIC input to the microprocessor
1 2 3
6. To exit from this mode, press three buttons [
x
], [
Z
] and [REC
TO USB] simultaneously.
7. PROTECTION FACTOR (SD DETECTION/
DC DETECTION/TSD DETECTION) IDENTIFICATION
TEST MODE
When an error is detected, the FL tube alternately displays
“PROTECTOR
h
PUSH POWER”.
r
Press the [
?/1
] button.
* Buttons other than the [
?/1
] button are invalid.
“STANDBY” blinks three times on the FL tube.
r
The protection release state (POWER OFF) is established.
(No FL tube display)
r
Press the [
?/1
] button two times.
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 protec-
tion state, the protection state is released, and the normal op-
eration is established. (The protection state is not maintained.)
2. The protection factor is displayed by pressing the [RETURN]
t
[3]
t
[2]
t
[0]
t
[0]
t
[ANGLE] buttons of the re-
mote commander.
(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”.
k When TSD is detected: Repeats
“TMP 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 con-
tinually, the power system other than that of the FL tube is
turned off, and the protection state is established.
TSD detection
When the “L” output from the thermal shutdown port
(TSDM) on the motor driver is detected.