ADJUSTING THE MIC
AM
(Wiring board diagram:
Main1
Side
1. EE level check
P CIRCUIT
TL601
EE level
Frequency character
check
(INT
MIC
R)
TL603
- EE
level
Frequency
character
check
(INT MIC
L)
EE level
-I
Frequency character check
(AUDIO
L
OUT)
\
II
II TL604
EE level
Frequency
character check
(AUDIO R OUT)
Measuring
instrument
Test point
Digital
voltmeter
TL605,
TL604
Mode
Adjustment rating
Test signal
Procedure
P-ON (CAM)
-135dBs +
3dB
1 kHz -54dBs sine wave
1) Input
IkHz, -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
1 limits.
2. Frequency character check
Measuring
instrument
Digital voltmeter
Test
point
TL605, TL604
Mode
Adjustment
rating
P-ON (CAM)
(1 kHz standard) 1 OOHz
: -6dB + 3dB
IOkHz
: +2dB 2 3dB
Test signal
Procedure
1 OOHz, 1 OkHz
-54dBs sine wave
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
1
Address
Mode
Adjustment rating
Procedure
17E, 17F, 180, 181,182
VCR
*1*2, *3*4, 0*5, 00, 01
1) Using the 12 command, set the VCR adjustment mode.
2) Using the 20 command, give the E*PROM Write permission.
3) Set the ID numbers as follows.
High-order 20 bit Low-order 20 bit
01 OOOh 41 OOOh-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
*5*4*3*2*1 h
10-13
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