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SRF-R405

Tourist Model

SERVICE MANUAL

FM STEREO/AM PLL SYNTHESIZED RADIO

MICROFILM

SPECIFICATIONS

Frequency range
Band

Frequency range

Channel step

FM

76 – 108 MHz

0.1 MHz

AM

530 – 1,710 kHz

9 kHz/10 kHz

Speaker

Approx.2.8 cm (1

1

/

8

 inches) dia., 7.2 

Output

2

 (headphone) jack

(

3.5 mm, stereominijack)

Power output

80 mW (at 10% harmonic distortion)

Power requirements

3 V, DC two R03 (size AAA) batteries

Power Auto Off function

Approx.30 minutes, 60 minutes,
90 minutes,120 minutes, and off

Dimensions Approx. 55 

×

 98 

×

 17 mm(w/h/d)

(2

1

/

4

 

×

 3

7

/

8

 

×

 

11

/

16

 inches) not incl.

projecting parts and controls
Approx. 59.2 

×

 98.2 

×

 17.8 mm(w/h/d)

(2

3

/

8

 

×

 3

7

/

8

 

×

 

23

/

32

 inches) incl.

projecting parts and controls

Mass

Approx. 89 g (3.1 oz) incl. batteries

Accessories Batteries (2)

Carrying case (1)

Design and specifications are subject to change
without notice.

Ver 1.0  1999. 04

Summary of Contents for SRF-R405

Page 1: ...W at 10 harmonic distortion Power requirements 3 V DC two R03 size AAA batteries Power Auto Off function Approx 30 minutes 60 minutes 90 minutes 120 minutes and off Dimensions Approx 55 98 17 mm w h d 21 4 37 8 11 16 inches not incl projecting parts and controls Approx 59 2 98 2 17 8 mm w h d 23 8 37 8 23 32 inches incl projecting parts and controls Mass Approx 89 g 3 1 oz incl batteries Accessori...

Page 2: ...n chip component replacement Never reuse a disconnected chip component Notice that the minus side of a tantalum capacitor may be damaged by heat SECTION 1 GENERAL This section is extracted from instruction manual ...

Page 3: ...6 Open the cabinet from the recessed areas Remove the 9 claws Claws Claws Claws Knob EAR SP Switch Claws 3 Open the lid ear phone 2 Screw M1 7 5 4 Screw M1 7 5 5 Screw M1 4 10 2 2 MAIN BOARD Note On installation of cabinet rear adjust the knob earphone speaker and switch positions until they agree 4 Screw B1 4 6 5 Claw Switch 1 Knob HOLD 7 Button NOISE CUT 8 Spring compression 6 Main board 2 Remov...

Page 4: ...01 FM STEREO 76kHz Adjustment L205 AM VCO Adjustment T201 AM IF Adjustment 22 5 kHz frequency deviation by 400 Hz signal 30 Output level as low as possible FM RF signal generator Set 0 01µF TP1 ANT Level meter Headphones jack J401 MAIN board 16Ω AM RF signal generator Put the lead wire antenna close to the set Set Headphones jack J401 MAIN board TP3 LPF Digital Volt meter Level meter 16Ω 30 amplit...

Page 5: ...ER Q501 502 SW S502 512 SYSTEM CONTROL LIQUID CRYSTAL DISPLAY DRIVE IC506 NOISE CUT P0B0 BAND VCOL XOUT XIN HOLD INT P0A1 TV 4 12CH P1B0 KS0 P1B1 KS1 P1B2 KS2 P1B3 KS3 P1A0 KR0 P1A1 KR1 P1A2 KR2 P1A3 KR3 EO BEEP 17 POC1 35 36 37 39 40 44 46 53 55 56 COM0 3 LCD0 14 VDD VDD 18 VDET2 6 P0A3 POWER 57 VDET1 CE P0A2 MUTE FM AM FRONT END IC201 B 3V RV401 VOL VOLTAGE DETECT IC503 TV 4 12CH 3V REG Q103 DC ...

Page 6: ...R409 R302 C304 J401 C307 C302 R301 R309 R306 R216 R215 R313 C306 C407 R407 R406 C406 C216 R213 C208 C201 C207 R201R204 R202 D203 C215 C202 R210 R212 C219 C223 R303 R214 R208 R403 R402 R401 C512 C705 C704 C504 C511 C503 R531 R530 R546 R603 R604 R602 C603 R549 R502 R601 R526 R605 D501 R532 C513 C502 R519 R525 R521 C602 C514 R527 C606 R218 11 11 11 11 Q602 16 1 2 A B C D E F G H I J 3 4 5 6 7 8 9 10 ...

Page 7: ...justment for repair Power voltage is dc 3 V and fed with regulated dc power supply from battery terminal Voltages and waveforms are dc with respect to ground under no signal detuned conditions no mark FM AM Voltages are taken with a VOM Input impedance 10 MΩ Voltage variations may be noted due to normal produc tion tolerances Signal path F FM f AM Waveform 1 IC506 X OUT 2 Q601 C 5µsec 1Vdiv 0 2µse...

Page 8: ...ment signal output to LCD Segment signal output to LCD Segment signal output to LCD Segment signal output to LCD Segment signal output to LCD Not used Ground Segment signal output to LCD Segment signal output to LCD Segment signal output to LCD Segment signal output to LCD Segment signal output to LCD Pin Name DATA OUT EEPROM CS TV 4 12CH MUTE NC POWER KS0 KS1 KS2 KS3 KR0 NC KR1 KR2 KR3 POC0 POC1 ...

Page 9: ...ING 1 4 10 15 3 917 963 01 CLOTH BATTERY PICK 16 3 034 716 01 COMBINED KNOB 17 A 3683 053 A MAIN BOARD COMPLETE 18 3 316 938 51 SCREW B1 4 6 TAPPING 19 3 034 717 11 COMBINED HOLDER 20 3 035 166 11 SPACER LCD 21 3 034 702 11 CABINET REAR 22 1 694 499 11 CONDUCTIVE BOARD CONNECTION 23 3 036 658 01 SHEET SECONDARY BATTERY 24 3 036 660 01 SPACER 3 6 25 X 3377 656 1 CABINET FRONT ASSY RP 26 3 038 780 0...

Page 10: ...C CHIP 0 015uF 10 16V C307 1 127 988 81 CERAMIC CHIP 0 015uF 10 16V C308 1 115 156 11 CERAMIC CHIP 1uF 10V C309 1 115 156 11 CERAMIC CHIP 1uF 10V C310 1 115 156 11 CERAMIC CHIP 1uF 10V C311 1 115 156 11 CERAMIC CHIP 1uF 10V C312 1 164 315 11 CERAMIC CHIP 470PF 5 50V C313 1 107 819 11 CERAMIC CHIP 0 022uF 10 16V C314 1 164 943 11 CERAMIC CHIP 0 01uF 10 16V C315 1 164 943 11 CERAMIC CHIP 0 01uF 10 1...

Page 11: ...1 16W R205 1 218 969 11 RES CHIP 22K 5 1 16W R206 1 218 965 11 RES CHIP 10K 5 1 16W R207 1 218 947 11 RES CHIP 330 5 1 16W R208 1 218 989 11 RES CHIP 1M 5 1 16W R209 1 218 989 11 RES CHIP 1M 5 1 16W R211 1 218 990 11 SHORT 0 R212 1 218 945 11 RES CHIP 220 5 1 16W R213 1 218 945 11 RES CHIP 220 5 1 16W R214 1 218 965 11 RES CHIP 10K 5 1 16W R215 1 218 929 11 RES CHIP 10 5 1 16W R216 1 218 965 11 RE...

Page 12: ...977 11 RES CHIP 100K 5 1 16W VARIABLE RESISTOR RV301 1 241 478 11 RES ADJ CERMET 10K RV401 1 225 744 11 RES VAR CARBON 20K 20K VOL SWITCH S301 1 762 741 11 SWITCH SLIDE 2 S401 1 771 337 21 SWITCH SLIDE 2 S501 1 762 770 11 SWITCH SLIDE HOLD S502 1 771 138 21 SWITCH KEY BOARD 1 S503 1 771 138 21 SWITCH KEY BOARD 4 S504 1 771 138 21 SWITCH KEY BOARD 2 S505 1 771 138 21 SWITCH KEY BOARD 3 S506 1 692 0...

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