Yamaha CDX-E200 Service Manual download pdf (Page 11)

RX-E200

1630

115

AM GND FM

AM Adjustment (This should be done after FM adjustment.)

● Connection Diagram (Measuring instruments)

1) Sensitivity verification

Reception

frequency

1080kHz

* (B-2)

Adjustment

point

Signal (ANT IN)

AM ANT

1080kHz

1kHz

Modulation off

AM ANT

60dBµ

Test point

AM ANT

Adjustment item

Verification of

sensitivity

Verification of auto

tuning

Step

Rating

S/N should be 20dB at frequency

of 1080kHz.

Check to ensure that the voltage at

the ANT terminal is 54dBµ or less.

Auto reception should be avail-

able when the tuning key is moved

UP and DOWN.

*:Execution of FACTORY PRESET (Refer to page 7.) will facilitate setting reception frequency for adjustment.

GND

AM loop antenna

AM ANT

TUNER

P. C. B.

AM SG

dummy

antenna

ACVM

DIST. M

Oscilloscope

REC

OUT

Adjustment of discriminator balance

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1 2 ... 6 7 8 9 10 11 12 13 14 15 16 ... 43 44

RX-E200/NX-E200 1
■ FRONT PANELS 2
■ TO SERVICE PERSONNEL 2
■ REAR PANELS 3
■ SPECIFICATIONS 4
■ INTERNAL VIEW 5
■ TEST MODE 7
0.1mV ~ 5mV (DC) 8
■ TUNER ADJUSTMENTS 9
1) Sensitivity verification 11
■ IC DATA 12
SYSTEM CONTROL 15
Transmission 16
Reception 16
System cable 16
RX CDX MDX KX 16
System Control Bus Data Table 22
AUTO POWER ON RECEPTION SW 24
■ BLOCK DIAGRAM 25
■ SCHEMATIC DIAGRAM (TUNER) 26
SCHEMATIC DIAGRAM (OPERATION) 27
■ SCHEMATIC DIAGRAM (MAIN) 28
FROM : MAIN (1) 29
TO : MAIN (4) 29
P. C. B. MAIN ( 1 ) 30
P. C. B. MAIN ( 6 ) 31
■ PIN CONNECTION DIAGRAM 32
REMOTE CONTROL TRANSMITTER 33
PARTS LIST 34
P.C.B. MAIN 35
P.C.B. MAIN & OPERATION 37
P.C.B. OPERATION & TUNER 38
P.C.B. TUNER 39
■ EXPLODED VIEW 40
■ MECHANICAL PARTS 41
New Parts 42
1/4W Type 44
1/6W Type 44

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Yamaha CDX-E200 Service Manual Page 11

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