Sharp VL-PD3S - Page 32

9-13
VL-PD3S/H/E VL-PD3S/H/E
ADJUSTING THE MIC AMP CIRCUIT
(Wiring board diagram: Main1 Side A)
0
5
R
1467
R
1471
Q1404
R1441
R3706
Q1416
R3707
C1448
R3703
R1449
R4710 R4709
R3704
R4712 R4711
R3708
TL1056
R4714 R4713
C3702
R4716
R4715
TL1030
C4701
SC1003
TL604TL605
R3701
C4702
Q4701
R4707
R4705
R4703
R4701
R4702 R4704 C4703
IC4702
R4708
R4706
C1444C1443
L1405 L1406
C1445C1446
TL1008
Q1415
C1434
R1468
R1457
C1447
R1437
C1432
R1470
R1469
R1442 R1438
C1441
Q1403
465
472
3
3
9
1
407
IC4701
C4704
TL3703TL3702
P3701
TL3701
TL603
TL602
TL601
TL611
TL601
EE level
Frequency character check
(INT MIC R)
TL603
EE level
Frequency character check
(INT MIC L)
TL605
EE level
Frequency character check
(AUDIO L OUT)
TL604
EE level
Frequency character check
(AUDIO R OUT)
1. EE level check
Measuring instrument Digital 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 Digital voltmeter
Test point TL605, TL604
Mode P-ON (CAM)
Adjustment rating (1kHz standard) 100Hz : -6dB ± 3dB
10kHz : +2dB ± 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).
DV INTERFACE ID SETTING
1. DV interface ID setting
Address 17E, 17F, 180, 181, 182
Mode VCR
Adjustment rating *1*2, *3*4, 0*5, 00, 01
Procedure 1) Using the 12 command, set the VCR adjustment mode.
2) Using the 20 command, give the E
2
PROM Write permission.
3) Set the ID numbers as follows.
High-order 20 bit Low-order 20 bit
01000h 41000h~4FFFFh For Line 1 (for 61,440 sets)
01000h 50000h~5FFFFh For Line 2 (for 65,535 sets)
01000h 60000h~6FFFFh For Line 3 (for 65,535 sets)
01000h 00000h~00FFFh Service and repair parts (for 4,095 sets)
The high-order 20 bit is set with 01000h fixed. For low-order 20 bit, individual ID number is set for each
set within the limits specified above for each production line.
4) Using the command, set Write inhibition.
5) Using the command, cancel the adjustment mode.
Note: Low-order 20 bit
*5*4*3*2*1h