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11
STR-DA3ES/DA5ES/VA555ES
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.
testpoints satisfies the specification.
Specification
4.0mV
±
0.5mV
Channel
FRONT L
FRONT R
FRONT R
CENTER
SURROUND
SURROUND
SURROUND
SURR BACK
Test point
TP501
TP551
TP601
TP701
TP751
TP651
TP551
TP601
TP701
TP751
TP651
Adjustment element
RV501
RV551
RV601
RV701
RV751
RV651
RV551
RV601
RV701
RV751
RV651
Adjustment Location:
TP501
RV501
TP601
RV601
RV701
TP751
TP651
TP701
VR751
VR651
TP551
RV551
[POWER AMP BOARD]
[OSD ADJUSTMENT]
Measuring Instrument:
frequency counter
Procedure:
1. Connect the frequency counter to check connector (TP201) of
1. Connect the frequency counter to check connector (TP201) of
the S VIDEO board.
2. Connect between Pin 3 to Pin 4 of TP201 by lead wire.
3. Adjust the respective adjustment element so that the frequency
3. Adjust the respective adjustment element so that the frequency
counter read specification.
Adj.
MODEL
Adjustment
element
CT202
(CLOCK BOARD)
CT201
(CLOCK BOARD
measurement
point
Specification
I
II
DA3ES, DA5ES
VA555ES
CT203
(S-VIDEO BOARD)
CT204
(S-VIDEO BOARD)
NTSC
PAL
TP201
Pin 1
Pin 1
TP201
Pin 2
Pin 2
3.579545MHz
±
50Hz
7.20MHz
±
0.01MHz
4. After check, remove the lead wire connected in step 2.
Adjustment Location:
[S-VIDEO BOARD]
CT203
CT204
TP201
1
4
[CLOCK BOARD]
CT202
CT201
+
–
–
frequency counter
S- VIDEO
BOARD
BOARD
Shorting
TP201
1
4
4.433618MHz
±
50Hz
3.57954MHz
±
50Hz
All models
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