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Sony Dream Machine ICF-C218, Service Manual

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Sony Dream Machine ICF-C218 Service Manual Download Page 11

11

ICF-218

IC1  CXA1019S

• IC Block Diagram

GND

GND

FM DISCRI

NF

VOL

AM OSC

AFC

FM OSC

REG OUT

FM RF

AM RF IN 

N. C

FM RF IN

FE GND

MIX OUT

21

22

23

24

25

26

27

28

29

30

2

3

5

4

6

7

8

9

10

1

11

12

13

14

15

16

17

18

19

20

AF POWER AMP

AM IF DET AGC

AM FE

FM

DISCRIMINATOR

FM FE

TUNING

METER

FM IF

GND

GND

AF OUT

Vcc

RIPPLE

FILTER

AF IN

DET OUT

AFC AGC

AFC AGC

IF GND

METER

N. C

FM IF IN

AM IF IN

FM/AM

BAND

SELECT

• Waveforms

1

IC101 

qs

 (XT1)

0.2V/DIV, 10 

µ

s

ec/DIV

– MAIN Board –

31.3 

µ

S

756 mV

Summary of Contents for Dream Machine ICF-C218

Page 1: ...W at 10 harmonic distortion Power requirements Model for Central South American and Mexico 120 V AC 60 Hz Model for Thailand 230 V AC 50 Hz Model for Australian 230 V AC 50 Hz Model for other countries regions 230 240 V AC 50 Hz For power backup 3 V DC one CR2032 battery Dimensions Approx 155 64 5 150 mm w h d 6 1 8 2 5 8 6 inches incl projecting parts and controls Mass Model for Central South Ame...

Page 2: ...tes on chip component replacement Never reuse a disconnected chip component Notice that the minus side of a tantalum capacitor may be damaged by heat Unleaded solder Boards requiring use of unleaded solder are printed with the lead free mark LF indicating the solder contains no lead Caution Some printed circuit boards may not come printed with the lead free mark due to their particular size LEAD F...

Page 3: ...ALARM RESET DATE SLEEP OFF OFF SLEEP BUZZER RADIO CLOCK DST ON SNOOZE ALARM MODE OFF BAND AM FM VOL TUNING PULL DST AM PM ALARM Battery compartment FM wire antenna Except Central America and Mexico model AC power cord Display window 12 hour system The display differs depending on your country There is a tactile dot beside VOLUME to show the direction to turn up the volume ...

Page 4: ... backward by 1 minute up to 10 minutes and then by 10 minutes increments While setting the alarm time the ALARM indicator flashes in the display ALARM When the alarm time setting operation is complete the display returns to the clock after a few seconds and the ALARM indicator changes from flashing to fully lit While ALARM MODE is set to RADIO or BUZZER the alarm time setting can be changed by ALA...

Page 5: ...SSEMBLY FLOW 2 2 FRONT PANEL UPPER CABINET ASSY 2 2 FRONT PANEL UPPER CABINET ASSY Page 5 2 3 MAIN BOARD Page 6 SET 4 7 1 two screws BVTP2 6 6 three screws BVTP2 6 2 five claws 3 two claws lower cabinet assy 8 upper cabinet assy 5 front panel ...

Page 6: ...d POWER CORD AND POINTER INSTALLATION 5 2 turn the knob VOL fully counterclockwise 4 turn RV1 fully counterclockwise MAIN board top view lower cabinet top view power cord wind the power cord clockwise once 3 turn CV1 fully counterclockwise bottom side 1 turn the knob TUNE fully counterclockwise ...

Page 7: ...L4 520kHz CT1 4 1 750kHz AM TRACKING ADJUSTMENT Adjust for a maximum reading on level meter L1 620kHz CT1 1 1 400kHz FM FREQUENCY COVERAGE ADJUSTMENT Adjust for a maximum reading on level meter L3 86 5MHz CT1 3 109 5MHz FM TRACKING ADJUSTMENT Adjust for a maximum reading on level meter confirm 86 5MHz CT1 2 109 5MHz TUNER SECTION AM RF signal generator 30 amplitude modulation by 400Hz signal Outpu...

Page 8: ... CT1 4 AM Frequency Coverage Adjustment L1 AM Tracking Adjustment TP1 RF IN Conductor side CT1 3 FM Frequency Coverage Adjustment CT1 1 4 CT1 2 FM Tracking Adjustment CT1 1 AM Tracking Adjustment T1 AM IF Adjustment AM Frequency Coverage Adjustment L3 FM Frequency Coverage Adjustment ...

Page 9: ...L4 C8 C32 R208 R214 R225 R211 R241 R222 R227 R212 R302 R216 1 9 10 18 19 27 28 36 JC202 R204 R239 R205 R220 C307 SP TH AUS C SA MX R217 R218 IC101 C209 C210 18 1 Q1 C29 R221 R1 R2 E Q302 E D204 D205 C15 RV1 VOLUME T1 CF1 CF2 BAND FM AM S1 ALARM TIME SET S11 JW2 TP1 RF IN C7 CV1 C9 C17 SP1 C14 C24 C305 C304 C306 C303 C11 W103 L3 JW3 JW6 JW5 JW205 JW210 JW204 JW208 JW207 JW206 D303 D301 D202 D203 D3...

Page 10: ...0 50V C1 0 01 B C307 W103 TP11 TP301 C301 0 01 R302 4 7k D301 1SS133T 77 D302 IN4002 B5 B C303 1000 D303 Q302 MTZJ T 77 5 6B 2SC4154 TP 1EF 5V REG 10V C302 0 01 B TP302 JW303 JW301 JW302 L301 PATTERN L302 PATTERN SP C14 220 10V C306 47 35V C308 0 01 B C304 220 10V C305 100 C201 C SA MX AUS SP TH SP TH AUS C SA MX JW207 JW204 JC202 TP223 TP103 GND D204 RB521S 30 TE61 D205 RB520S 30 TE61 TP224 BATT ...

Page 11: ...22 23 24 25 26 27 28 29 30 2 3 5 4 6 7 8 9 10 1 11 12 13 14 15 16 17 18 19 20 AF POWER AMP AM IF DET AGC AM FE FM DISCRIMINATOR FM FE TUNING METER FM IF GND GND AF OUT Vcc RIPPLE FILTER AF IN DET OUT AFC AGC AFC AGC IF GND METER N C FM IF IN AM IF IN FM AM BAND SELECT Waveforms 1 IC101 qs XT1 0 2V DIV 10 µsec DIV MAIN Board 31 3 µS 756 mV ...

Page 12: ...HITE including SP1 3 2 894 297 01 KNOB JOG WHITE WHITE 3 2 894 297 11 KNOB JOG BLACK BLACK 3 2 894 297 21 KNOB JOG GRAY SILVER 4 2 894 296 01 KNOB ALARM WHITE WHITE 4 2 894 296 11 KNOB ALARM BLACK BLACK 4 2 894 296 21 KNOB ALARM GRAY SILVER 0 5 1 769 339 82 CORD POWER C SA MX 05 1 831 261 11 CORD POWER AUS 05 1 777 921 31 POWER SUPPLY CORD SP TH 6 A 1229 333 A MAIN BOARD COMPLETE C SA MX 6 A 1229 ...

Page 13: ...6V C15 1 164 156 11 CERAMIC CHIP 0 1uF 25V C17 1 126 947 11 ELECT 47uF 20 35V C19 1 115 156 11 CERAMIC CHIP 1uF 10V C20 1 115 156 11 CERAMIC CHIP 1uF 10V C21 1 162 908 11 CERAMIC CHIP 3PF 0 25PF 50V C22 1 115 156 11 CERAMIC CHIP 1uF 10V C24 1 126 926 11 ELECT 1000uF 20 10V C25 1 164 156 11 CERAMIC CHIP 0 1uF 25V C29 1 115 156 11 CERAMIC CHIP 1uF 10V C34 1 216 864 11 SHORT CHIP 0 C201 1 165 128 11 ...

Page 14: ... 216 823 11 METAL CHIP 1 5K 5 1 10W R239 1 216 849 11 METAL CHIP 220K 5 1 10W R240 1 216 841 11 METAL CHIP 47K 5 1 10W R241 1 216 845 11 METAL CHIP 100K 5 1 10W SP TH R241 1 216 864 11 SHORT CHIP 0 C SA MX AUS R242 1 216 864 11 SHORT CHIP 0 R243 1 216 835 11 METAL CHIP 15K 5 1 10W R244 1 216 833 11 METAL CHIP 10K 5 1 10W R302 1 216 829 11 METAL CHIP 4 7K 5 1 10W VARIABLE RESISTOR RV1 1 227 623 11 ...

Page 15: ...15 ICF C218 MEMO ...

Page 16: ...allows you to jump to the revised page Also clicking the version at the upper right on the revised page allows you to jump to the next revised page Ver Date Description of Revision 1 0 2007 03 New 1 1 2007 04 Addition of Central South American model ...

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