Service manual

33
VL-SD20U
VL-FD1U
ADJUSTING THE MIC AMP CIRCUIT
(Wiring board diagram: Audio I/O Side B)
1. EE level check
Measuring instrument Valve voltmeter Test point TL605, TL604
Mode P-ON (CAM) Adjustment rating -13.5dBs ± 3dB
Test signal 1kHz -54dBs sine wave
Procedure 1) Input 1kHz, -54dBs sine wave into TL603(INT MIC L), TL601(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.
2. Frequency character check
Measuring instrument Valve voltmeter Test point TL605, TL604
Mode P-ON (CAM)
Adjustment rating (1kHz standard) 100Hz : -6dB ± 3dB
10kHz : +2B ± 3dB
Test signal 100Hz, 10kHz -54dBs sine wave
Procedure 1) Input 100Hz, -54dBs sine wave and then 10kHz, -54dBs sine wave into TL603 (INT MIC L) and TL601
(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 limit (1kHz standard).
TL2650
R636
R635
C645
TL2647
TL2652
TL2637
TL2640
TL2638
TL2648
TL2644
TL2645
SC2601
TL2641
TL604
TL2639
TL2651
TL2636
TL2630
R640
TL2656
C637
R656
L602
C638
C651
C646
R650
R651
R647
C650
TL2628
TL2654
P2604
TL2653
R629
TL2627
R662
TL2629
C605
Q605
TL2659
TL2660
S1501
TL2631
Q603
R666
R655
C609
TL2649
L601
BAT2601
C607
TL602
C608
C610 C611
TL603
R617
R624
R613
R626
C634
C633
C632
C631
R654
R638
R628
C619 C621
R669
C620
BAT2602
TL2646
TL2655
TL2658
TL601
R687
R688
TL605
FB601
FB602
TL614
TL2661
C1501
TL616
FB603
TL617
TL615
TL605
EE level
Frequency character
TL601
EE level
Frequency character
TL604
EE level
Frequency character
TL603
EE level
Frequency character
DV INTERFACE (IEEE1394) ID SETTING
If ID code is acquired, it is written by the following point.
Example) Acquisition code : 08001F0100123456
Address 180 17F 17E
Data(ID code) 12 34 56
· Procedures for Entering IEEE1394 Numbers
1. Set the power switch to the "VCR" position.
2. Press "CONTINUE" on the adjustment remote control, then
press "VCR ADJ" and the address you chose will appear on the
LCD monitor.
[PLAY] key
[FF] key
[STOP] key
[REW] key
[VCR ADJ] key
[CONTINUE] key
ADJ. REMOTE CONTROL
RRMCG 0033 TASA
3. With "FF" or "REW" the desired address will appear.
Set with "PLAY" and data entry will show.
4. With "FF" or "REW" the ID number (obtained through the
Intranet) for any address wil appear. Set with "PLAY".
5. Press "STOP" and the address selection will appear. Then you
can enter your ID number in order under the given address
digits (180, 17F, 17E).
6. Set the power switch to the "OFF" position. Now the writing is
complete.
VCR ADJ
017E
FFFF6A00
40
Data(ID number)
VCR ADJ
0000
FFFF6A00
Address: flashing