VL-SDPOU
ADJUSTING THE
MIC AMP
(Wiring board diagram:
MAIN
Side A)
CIRCUIT
TL601
EE level
check
Frequency character
check
TL604
EE level
check
Frequency character
check
\
TL603
EE
level
check
Frequency
character check
check
1.
EE
level
check
(Wiring board
diagram: MAIN Side B)
Measuring instrument Valve voltmeter
Test point
TL605, TL604
Mode
P-ON (CAM)
Adjustment rating -11.5dBs
f 3dB
Test signal
1 kHz -54dBs sine wave
Procedure
1) Input 1 kHz, -54dBs sine wave into TL603(INT MIC L), TLGOl(INT MIC R).
2) Make sure that the signal level of TL605 Audio-L out and TL604 Audio-R out is within the standard
2. Frequency character check
Measuring instrument
Valve voltmeter
Test point
TL605, TL604
Mode
P-ON (CAM)
Adjustment rating
(1
kHz
standard) 1 OOHz
:
-1 OdB f 3dB
1OkHz
:
OdB f 3dB
Test
signal
1 OOHz, 1 OkHz -54dBs sine wave
Procedure
1)
Input 1 OOHz, -54dBs sine wave and then 1 OkHz, -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 (1 kHz standard).
DV INTERFACE ID SETTING
1.
DV interface ID setting
Address
Mode
Adjustment rating
Procedure
17E, 17F, 180, 181, 182
VCR
*1*2,
l 3*4, 0*5, 00, 01
1) Using the 12 command, set the VCR adjustment mode.
2) Using the 20 command, give the E2PROM Write permission.
3) Set the ID numbers as follows.
High-order 20 bit Low-order 20 bit
01 OOOh
41000h-4FFFFh
For Line 1 (for 61,440 sets)
01 OOOh 50000h-5FFFFh
For Line 2 (for 65,535 sets)
01 OOOh 60000h-6FFFFh
For Line 3 (for 65,535 sets)
01 OOOh
OOOOOh-OOFFFh
Service and repair parts (for 4,095 sets)
The high-order 20 bit is set with OlOOOh 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
l 5’4*3*2*1 h
10-11
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