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Alpine MRV-F900 Service Manual page 5

4 channel power amplifier
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Test Point/ P.W.Board
Step Connection
Coordinates
TP8018- TP8019
(4-A)
(4-A)
TP8020- TP8021
5
Figure 2
(4-A)
(4-A)
TP8022- TP8023
(4-A)
(4-A)
TP8043- TP8042
(2-A)
(2-A)
TP8041- TP8040
7
Figure 2
(2-A)
(2-A)
TP8039- TP8038
(2-A)
(2-A)
TP9058- TP9059
(2-G)
(2-G)
TP9060- TP9061
8
Figure 2
(2-G)
(2-G)
TP9062- TP9063
(2-G)
(2-G)
TP9035- TP9030
(4-G)
(4-G)
TP9031- TP9032
9
Figure 2
(4-G)
(4-G)
TP9033- TP9034
(4-G)
(4-G)
The pointwith which a value serves as the maximum in a test pointis investigated.
(1)
(TEST POINT 1 : TP8018- TP8019, TEST POINT 2 : TP8020- TP8021,
TEST POINT 3 : TP8022- TP8023)
The value of the pointwith which a value serves as the maximum in a test point
is measured.
(2)
(SPEC) TEST POINT: 1.8±1.4mV OK
(SPEC) TEST POINT : others1.8±1.4mV NG
NOTE : NG : Proceedsame AutoAdjustmentof step (3).
VR100is turnedandthe value of the test pointof (2) is adjusted.
(3)
(SPEC) TEST POINT: 1.8±1.4mV
The pointwith which a value serves as the maximum in a test pointis investigated.
(1)
(TEST POINT 1 : TP8043- TP8042, TEST POINT 2 : TP8041- TP8040,
TEST POINT 3 : TP8039- TP8038)
The value of the pointwith which a value serves as the maximum in a test point
is measured.
(2)
(SPEC) TEST POINT: 1.8±1.4mV OK
(SPEC) TEST POINT: others1.8±1.4mV NG
NOTE : NG : Proceedsame AutoAdjustmentof step (3).
VR200is turnedandthe value of the test pointof (2) is adjusted.
(3)
(SPEC) TEST POINT: 1.8±1.4mV
The pointwith which a value serves as the maximum in a test pointis investigated.
(1)
(TEST POINT 1 : TP9058- TP9059, TEST POINT 2 : TP9060- TP9061,
TEST POINT 3 : TP9062- TP9063)
The value of the pointwith which a value serves as the maximum in a test point
is measured.
(2)
(SPEC) TEST POINT : 1.8±1.4mV OK
(SPEC) TEST POINT: others1.8±1.4mV NG
NOTE : NG : Proceedsame AutoAdjustmentof step (3).
VR400is turnedandthe value of the test pointof (2) is adjusted.
(3)
(SPEC) TEST POINT : 1.8±1.4mV
The pointwith which a value serves as the maximum in a test pointis investigated.
(1)
(TEST POINT 1 : TP9035- TP9030, TEST POINT 2 : TP9031- TP9032,
TEST POINT 3 : TP9033- TP9034)
The value of the pointwith which a value serves as the maximum in a test point
is measured.
(2)
(SPEC) TEST POINT : 1.8±1.4mV OK
(SPEC) TEST POINT : others1.8±1.4mV NG
NOTE : NG : Proceedsame AutoAdjustmentof step (3).
VR300is turnedandthe value of the test pointof (2) is adjusted.
(SPEC) TEST POINT : 1.8±1.4mV
Adjustment
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