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Alpine 3JDE-788S Service Manual page 33

Fm/mw/lw/rds in-dash cd changer receiver

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Q251 0253 0601
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AUDIO SELECTOR
8 ELECTRICAL
7
VOLUME
PHOTO
DIO.
E231 0.47/50
R251
220
E251
10/16
REMOCON
RECEIVER
Mint P.W.Board
REHOCON IC
FIRST AMP LIMITER
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R253
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Speaker Output &
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Power Supply Connector
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1C402 RS-31
From Main P.W.Board
(CH402)
ET201-1
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Assy.,RCA Output &
Remote Control
Interface Connector
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R450 1.5K
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R4AG 2.2K
RAST 2.2K
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R441 3.3K
R442 5.6K
R443 10K
RAA4 33K
R447 3.3K
R448 5.6K
R4S2 3.3K
R453 5.6K
R454 10K
R449 33K
R412 120K
C401 470P
LCD Display
1C202
IC203, 205
1C301
13,14/
436v | 38 | 4a5v
15
254V
39
4.33V
NFP ON/OFF
16
PS
40
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18 | 8sev | 42,43
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19,20]
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21,22
PS
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Q251
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POWER ON/NFP SELECT
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ovov
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MUTE ON/OFF
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|
MUTE ON/OFF
Q253
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ov/Ps
POWER ON/NFP SELECT
Cc}
ovsov
MUTE ON/OFF
BI]
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MUTE ON/OFF
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MODE
Q270
PS
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ov
271
PS
ov
ov
Q301
OV/0V
OV/5.19V
4.78V/0V
MUTE
ON/OFF
7 |
407
ov
ov
5.06V
1
2
3
|
4
5
MODE
2020
PS/OV al PS/OV
ov/4a7v
0V/0V
0v/47V
| FM LEVEL HIGH/LOW
q202z | 0Vv/7.12v
8.62V/0V
ov/7.12V
ovrov
| 49vsov
NFP ON/OFF
——
2601
NC
vaa7viov | 1422vi1422v]
araviov
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MUTE ON/OFF
[Measuring Conditions]
¢ Power Supply Voltage
* Measuring Meter
: DC14.4V
: Digital Multi Voltmeter
« Measuring Point Reference
: Between Ground
* Measuring Conditions
PEM ssasiateaves 98.1MHz, No MOD.
MW
999kHz
EWeitens
2: 216kHz
NOTE:
1. All resistance values are in ohms.
K = 1,000
1
2. All capacitance values are in microfarads.
P =
J-31-
K
1,000,000
j ;

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