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Alpine CDA-7865R Service Manual page 7

Fm/mw/lw/rds cd receiver
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i
(4) Adjustment Procedures
CDA-7865R
Test Point /
Step | Description
| Connection
Signal Generator
Dial Control | P.W.Board
Adjustment
|
Coordinates
7
98.1MHz, 72dBu
ies
i
ajaenert
Figure 3
(Mod. 400Hz,
98.1MHz
tpooe __| Adiust [OV ]to 0430mV.
Dev. 40kHz)
(1-B)
98.1MHz, 51dBy
TP004
Auto Adjustment : After setting up of
Signal Meter
:
(Mod. 400Hz,
(1-B)
Signal Genarator, short GND and
2 | adjustment
| Figure 4
Dev. 40kHz
98.1MH2 | tps05 | TP505 (Pull-Down) for 2~3 seconds.
— Mod. OFF)
(1-C)
(SPEC) TP004 : 340.1V
cel ply
Gs .
Auto Adjustment : After setting up of
(1)
;
-
999kHz
Signal Genarator, short GND and
ae
TESeS
TP505 (Pull-Down) for 2~3 seconds
— Mod. OFF)
(1-C)
:
Proceed same Auto Adjustment of step
(1) under step (2).
999kHz, 32dBy
TP004
(SPEC) TP004 : 1.830.1V + OK
(2)
(Mod. 400Hz,
(1-B)
(SPEC) TP004 : others 1.840.1V — NG
30%
TP505
AM
— Mod. OFF)
{1-C)
NOTE : NG : Proceed same Auto
3 | Signal Meter | Figure 5
Adjustment of step (1)
Adjustment
under step (3).
999kHz,
27~29dByu
'
(3) | (Mod. 400Hz,
999kHz
(1-B)
Proceed same Auto Adjustment of step
5
TP505
(1) under step (3).
30%
~» Mod. OFF)
999kHz, 32dBy
(Mod. 400Hz,
(1-B)
Proceed same Auto Adjustment of step
30%
TPS505
(1) under step (4).
— Mod. OFF)
e.
O
C=». "©
O
IRP TUNER
FM/MW/LW Tuner Unit, MB4R9030 (TU001)
NOTE : For the Test Points, refer to the Parts Layout on P.W.Boards and Wiring Diagram.

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