Sony STR-DA333ES - Fm Stereo/fm-am Receiver, Service Manual

Page: 9 / 66

STR-DA333ES/DA555ES
– 9 – – 10 –
SECTION 4
ELECTRICAL ADJUSTMENT
IDLING CURRENT ADJUSTMENT
Measuring Instrument: Digital voltmeter
Adjustment Procedure: Adjust the respective adjustment elements so that the voltage (absolute value) across the corresponding
testpoints satisfies the specification.
Specification
6mV
Channel
FRONT L
FRONT R
CENTER
REAR L
REAR R
Test point
TP501
TP551
TP601
TP701
TP751
Adjustment element
RV501
RV551
RV601
RV701
RV751
Adjustment Location:
TP501
RV501
RV601
RV551
RV751
RV701
TP601
TP551
TP751
TP701
S. AMP BOARD
MAIN BOARD
SECTION 3
TEST MODE
FLUORESCENT INDICATOR TUBE TEST MODE
* All fluorescent segments are tested. When this test is activated,
all segments turn on at the same time, then each segment turns on
one after another.
Procedure:
While depressing the FUNCTION MODE button and the SOUND
FIELD MODE button simultaneously, press the
1/u
button to
turn on the main power. All segments turn on at the same time, then
each segment turns on one after another.
When the CURSOR MODE button, B , V , v , or b is pressed,
the indication advances in the following order: All segments on,
Bridge 1, Bridge 2, All segments off.
FACTORY SET MODE
* All preset contents are reset to the default setting.
Procedure:
While depressing the FUNCTION MODE button and the SOUND
FIELD GENRE button simultaneously, press the
1/u
button to
turn on the main power. The message FACTORY SET appears and
the present contents are reset to the default values.
ALL CLEAR MODE
* All preset contents are cleared when this mode is activated. Use
this mode before returning the product to clients upon completion
of repair.
Procedure:
While depressing the SOUND FIELD GENRE button and the
SOUND FIELD ON/OFF buttons simultaneously, press the
1/u
button to turn on the main power. The message “ALL CLEAR!”
appears and the preset data is cleared.
SOUND FIELD CLEAR MODE
* The preset sound field is cleared when this mode is activated.
Use this mode before returning the product to clients upon comple-
tion of repair.
Procedure:
While depressing the SOUND FIELD ON/OFF button, press the
1/u
button to turn on the main power. The message “SURR
CLEAR!” appears and initialization is performed.
DSP TEST MODE
Procedure:
While depressing the FUNCTION MODE button and the EQUAL-
IZER buttons simultaneously, press the
1/u
button to turn on the
main power. The message “DSP NO ERROR” or “DSP ERROR”.
When “DSP NO ERROR” is displayed, a 1 kHz signal is output to
all channels.
When the
B , V , v , or b button is pressed while “DSP NO
ERROR” is displayed, the message “DSP TEST MODE” appears.
In this mode, the input signal that is selected by the FUNCTION
knob is distributed to each speaker.
Speaker
Signal
CENTER
L
REAR L
L
REAR R
R
FRONT L
L
FRONT R
R
DTS MODE
* Some DTS sounds will be distorted even when the volume is low-
ered. In this case, set the attenuator to ON according to the fol-
lowing procedure and reduce the overall level of the sound.
Procedure:
While pressing the
B button and b button simultaneously, press
the
1/u
button to turn ON the power. The message “ATTENU-
ATE OFF” or “ATTENUATE ON” message appears.
All segments on
Bridge 1
Bridge 2
All segments off