33
VL-WD650U
2. Frequency character check
Measuring instrument
Valve voltmeter
Test point
TL605, TL604
Mode
P-ON (CAM)
Adjustment rating
(1kHz standard) 100Hz: -8dBs
±
3dB
Parameter; Zoom Mic "OFF"
10kHz: -5dBs
±
3dB
Test signal
100Hz, 10kHz -54dBs sine wave
Procedure
1) Input 100Hz, -54dBs sine wave and then 10kHz, -54dBs sine wave into TL6605(INT MIC L) and
TL6607(INT MIC R).
2) At this time make sure that the signal level of TL605 Audio-L out and TL604 Audio-R out is within the
standard limits (1kHz standard).
Remark
TL6604: GND
3. Super-directional microphone check
Measuring instrument
Valve voltmeter
Test point
TL605, TL604
Mode
P-ON (CAM), Zoom MIC "TELE"
Adjustment rating
-10dBs
±
3dB
Test signal
1kHz -54dBs sine wave
Procedure
1) Input 1kHz, -54dBs sine wave into TL6602(TELE-MIC).
2) Make sure that the signal level of TL605 Audio-L out and TL604 Audio-R out is within the
standard limits.
Remark
ADJUSTING THE MIC AMP CIRCUIT
(Wiring board diagram: Main Side B)
1. EE level check
Measuring instrument
Valve voltmeter
Test point
TL605, TL604
Mode
P-ON (CAM), Zoom Mic "OFF"
Adjustment rating
-9dBs
±
3dB
Test signal
1kHz -54dBs sine wave
Procedure
1) Input 1kHz, -54dBs sine wave into TL6605(INT MIC L) and TL6607(INT MIC R).
2) Make sure that the signal level of TL605 Audio-L out and TL604 Audio-R out is within the standard
limits.
Remark
TL6604: GND
453
1801
R
1800
TL1800
C2802
C1800
D1800
R1803
C1810
C2803
Q1800
R1819
R1802
C2804
TL3332
TL827
TL834
TL1801
TL3331
TL826
TL821
TL831
C1801
R1804
TL801
TL804
TL806
SC801
TL810
TL813
TL814
TL815
TL819
TL824
TL832
TL820
TL818
TL833
TL829
TL822
TL830
TL825
TL828
P6602
TL6602
TL816
TL6606
TL6605
TL6607
TL817
R5801
C6604
TL823
R5800
L2800
TL812
C2800
R6612
TL811
L2801
TL809
C2801
TL808
C6605
C6611
TL807
R2803
R2804
TL805
R5804
R5803
R6619
R6616
R2806
R2808
TL2800
TL2801
R2805
R2807
TL803
R5802
R5805
TL2802
C6612
TL802
TL703
R6624
R6620
C6616
R6622
TL702
C6615
R6623
IC2800
R6656
R2800
R2801
R2802
C3473
R3439
R3447
05
L6601
Q6604
C6642
R6647
C6644
C6647
R6650
C6620
C6648
R6646
R6648
R6649
R6625
R6626
R6651
R6627
Q6602
R6657
R6658
C6619 C6617
C6618 R6621
R6618
C6613
C6614
R6617
IC6601
R6615
R6613
C6610
R6614
C6608
C6609
C6607
C6603
C6602
R6602
C6606
R6607
C6601
R6609
R6606
R6610
R6608
R6605
TL6603
TL6604
R6629
R6628
TL6601
C6622
C6621
TL5031
P6601
TL5032
TL5034
SC5002
TL5033
TL5035
TL5036
TL5041
TL5037
TL5039
TL5042
C6630
TL5038
TL5043
C6628
C6624
C6623
C6626
R6630
C6629
R6631
C6627
R6632
R6633
C6631
R6635
R6634
R6638
C6637
C6636
R6640
R6639
R6641
R6642
C6638
R6636
Q6603
R6660
R6661
R6659
R6643
C6634
C6633
C6639
R6637
R6644
C6640
C6632
C6641
R621
R6645
TL603
R6654
R6652
R6653
C6646
R663
C6643
Q608
C6645
TL605
Q601
TL604
C6635
TL5047
TL5046
TL5045
TL5044
TL6604(GND)
EE level check
Frequency character check
TL6602(TELE MIC)
Super-directional microphone check
TL6607(INT MIC R)
EE level check
Frequency character check
TL6605(INT MIC L)
EE level check
Frequency character check
TL605
EE level check
Frequency character check
Super-directional microphone check
TL604
EE level check
Frequency character check
Super-directional microphone check
Summary of Contents for VIEWCAM VL-WD650U
Page 84: ...113 VL WD650U A B C D E F G H I J 1 2 3 4 5 6 7 8 9 10 Wiring Side SIDE A ...
Page 86: ...115 VL WD650U A B C D E F G H I J 1 2 3 4 5 6 7 8 9 10 Wiring Side SIDE B ...
Page 92: ...121 VL WD650U A B C D E F G H I J 1 2 3 4 5 6 7 8 9 10 Wiring Side SIDE A ...
Page 94: ...123 VL WD650U Wiring Side SIDE B A B C D E F G H I J 1 2 3 4 5 6 7 8 9 10 ...
Page 102: ...131 VL WD650U A B C D E F G H I J 1 2 3 4 5 6 7 8 9 10 Wiring Side SIDE A ...
Page 104: ...133 VL WD650U A B C D E F G H I J 1 2 3 4 5 6 7 8 9 10 Wiring Side SIDE B ...
Page 106: ...135 VL WD650U Wiring Side SIDE A A B C D E F G H I J 1 2 3 4 5 6 7 8 9 10 ...
Page 107: ...136 VL WD650U A B C D E F G H I J 1 2 3 4 5 6 7 8 9 10 Wiring Side SIDE B ...