Sharp 20U-FS1, Руководство по обслуживанию

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27
20U-FS1
CU20FS1
27-1
27-2
ADJUSTMENT ITEM ADJUSTMENT POSITION CONTR
OL
PRE-ADJUST REQ
UIREMENT
CONTENT INPUT CONDITION OUTPUT ADJUSTMENT PR
OCEDURE
1)
ADJUST
M03
D
A
T
A
UNITILL
OK
DISPLA
Y ON SCREEN ADJUST
THE
B
US D
A
T
A
IN CENTRE OF
THE RANGE.
FIL
TER ADJUSTMENT
M03
STEP RANGE
0~63
I 2
C BUS CONTROL
OPTION SET UP
, B
US SET UP
,
VCO ADJ
, RF-A
GC
, MS-LEVEL, MTS-VCO
SINE
W
A
VE (9.4kHz, 600mVr
ms)
PIN 14 (FR
OM C3005 -
TERMINAL)
CONFIRMBY CR
T SCREEN
[CHECKING SPEC] REFER
T
O
ABO
VE (CHECKING SPEC :
± 2 STEP
T
O
CENTRE)
ADJUSTMENT ITEM ADJUSTMENT POSITION CONTR
OL
PRE-ADJUST REQ
UIREMENT
CONTENT INPUT CONDITION OUTPUT ADJUSTMENT PR
OCEDURE
1
)
INPUT SIGNAL 1, ADJUST B
US D
A
T
A
OF M04 UNIT
THE OF 39 PIN
BECOME MINIMUM LEVEL.
2
)
INPUT SIGNAL 1, ADJUST B
US D
A
T
A
OF M04 UNIT
THE A
C
V
O
LT
-
AGE OF 39 PIN BECOME MINIMUM LEVEL.
3)
REPEA
T STEP 1) AND 2).
SET
THE SOUND
V
OLUME
T
O
MAXIMUM
THEN MAKE SURE
THE
READING FR
OM
THE SPEAKER
TERMINAL MUST BE O
VER THE
SPEC
AS SPECIFIED BELO
W.
SEP
AR
TION ADJUSTMENT
M04, M05
STEP
RANGE
0~63
I
2
C BUS CONTROL
OPTION SET UP
, B
US SET UP
,
VCO ADJ
, RF-A
GC
, MS-LEVEL, MTS-V
CO
, FIL
TER
STEREO SIGNAL SIGNAL 1,:
MODULA
TION 30%, L-CH ONL
Y
, NR-ON, 300Hz
SIGNA
L 2
,:
MODULA
TION 30%, L-CH ONL
Y
, NR-ON, 3kHz
RF INPUT IC 3001 39 PIN
[CHECKING SPEC] OVER 25 dB (CHECKING SPEC : OVER 20 dB)