C Pll Set Adjustment 00.0.0; B-Y Demod Carrier Balance Adjustment - Sony CCU-TX7 Service Manual
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Also See for CCU-TX7:
- Operating instructions manual (20 pages) ,
- Service manual (80 pages) ,
- Operating instructions manual (24 pages)
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4-4-2.
C PLL Set Adjustment
Note : Make sure that 45 MHz frequency on the YM-15
board (CA-TX7/TX7P) is correct.
Equipment
: Oscilloscope
To be extended
: YD-26 board
Test point
: TP15 (GND: E8VYD-26 board
Adjusting point : @RV14 (PLL SET)/YD-26 board
Specification
:A=02+30mVdc
ANip
SAMPL GATE
sampcsm — RV3
TP4 TP7
VE AGS
'BhéQ
Q
83
A)
OO
Me
5
6
O
LV1
pucks#
sync
sit
TP3
$4
exedAce
7
{ i]
a
£
ie}
6
TP13
B-Y CARR BAL
z fs
TPi4 gry RVIT
e (7)
AVIO
AGC CONT
RV13
'OFFSET ADJ
$2
CABLE LENGTH
1
a
CCU-TX7 (E)/V1
4-4-3.
B-Y DEMOD Carrier Balance
Adjustment
Equipment
: Oscilloscope
To be extended : YD-26 board
Preparation :
¢ $4 (C 2nd AGC)/YD-26 board — "OFF"
Test point
: TP17 (GND: E8)/YD-26 board
Adjusting point : @RV11 (B-Y CARR BAL)/
YD-26 board
Specification
—: Adjust so that the waveform level of
SAMPLE pulse is maximum,
—
yy
Maximum.
TPH
yreve.O
RVS
Ore
Tei2
RVI7
O
pytever
YD-26 Board (A SIDE)
4-19
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