Sony STR-KM5500 Service Manual page 15

1. DCAC DSP Data Line Checking
After press the [TUNING MODE] button, DCAC Factory test
mode will start, below display will show:
"DCAC x" x = 1, 2, 3, 4
If there is error happen, below display will show:
"ERR SD0x" x = 1 → D1501 or R1530 problem
x = 2 → D1502 problem
x = 3 → D1503 problem
x = 4 → D1504 problem
2. DCAC board Checking
Connect front left speaker of the receiver and AUTO CAL
microphone. Turn [MASTER VOLUME] jog, there will be test
tone sound output from front left speaker, and the display will
change accordingly.
"AD - xxx" xxx = 0 to 255 (depends on loudness of test tone)
Note
When the value reaches more than 222, the test tone will muted
(for production line checking). Thus, the AD value will drop to 0.
To check the AD value again, power off the receiver and re-enter
the test mode.
VACS CONTROL TEST MODE
The VACS feature of the amplifi er is turned off purposely.
Procedure:
1. While pressing the [MUSIC] and [A.F.D.] buttons, press the
[ ] button to turn on the main power.
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2. The message "VACS OFF" appears.
HISTORY MODE
The state that the set is used is memorized.
Procedure:
1. While depressing the [GAME] and the [A.F.D.] buttons
simultaneously, press the [
power.
2. "HISTORY" appears.
3. Each time the [ ] / [ ] buttons on the remote commander is
V v
pressed, the item is switched in order as follows.
Items
Protector Count
Total single power on time
Sound Field
Input function
Input Mode
Digital Select
Stream information
Signal confi guration
Headphone
Volume
Bass Setting
Treble Setting
Front Level Setting
Center Level Setting
Surround Left Level Setting
Surround Right Level Setting
Surround Back Level Setting
Subwoofer Level Setting
Total power on time
Muting status
Power on counter (Rebox test mode)
Protector Type
Temperature when protect
] button to turn on the main
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COUNT XX
SXXXHXXM
SND FLD
FUNCTION
INP MODE
DIGI IN
STREAM
CO XXXXX
HP XXX
VOL XXX
BASS XXX
TREB XXX
F XXX
CT XXX
SL XXX
SR XXX
SB XXX
SW XXX
TXXXHXXM
MUTE XXX
P.W. XXX
PRT XXXX
TEM XXXC
PROTECTOR AUTO OFF
* To disable auto off after protector occur.
Procedure:
1. While depressing the [NIGHT MODE] and the [MUSIC]
buttons simultaneously, press the power [
on the main power.
2. "PROTEVER" appears.
STR-KM5500
] button to turn
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