SONY SRF-S84EV1.0.pdf

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1、SRF-S84 SERVICE MANUAL FM STEREO/AM RADIO SPECIFICATIONS E Model Australian Model Chinese Model Ver 1.0 2002.02 Sony Corporation Personal Audio Company Published by Sony Engineering Corporation 9-873-482-01 2002B0200-1 2002.02 Frequency range FM: 87.5-108 MHz AM: 530 -1605kHz Output 2 (stereo earpho

2、nes) jack (3.5mm stereo minijack) load impedance 16 Power output 3.6mW + 3.6mW (at 10% harmonic distortion) Power requirements 1.5 V DC, one R03 (rize AAA) Dimensions Approx.39.5 78.5 16.5 mm (w / h / d)(Approx. 19/16 31/8 21/32 inches) not incl. projecting parts and contorols Mass Approx. 61.2g (2.

3、16 oz) incl. abattery and stereo earphones Accessories supplied stereo earphones (1) Design and specifications are subject to change without notice 本资料由O K X I A 视听皮带资源库w w w . o k x i a . c n 提供 2 SRF-S84 Specifications . 1 1.GENERAL Location and Function of Controls . 2 2.DISASSEMBLY 2-1. Cabinet

4、(Rear). 3 2-2. Main Board . 3 3.DIAL POINTER INSTALLATION. 4 4.ADJUSTMENTS. 5 5.DIAGRAMS. 6 6.EXPLODED VIEW. 10 7.ELECTRICAL PARTS LIST. 11 Flexible Circuit Board Repairing Keep the temperature of the soldering iron around 270C during repairing. Do not touch the soldering iron on the same conductor

5、of the circuit board (within 3 times). Be careful not to apply force on the conductor when soldering or unsoldering. Notes on chip component replacement Never reuse a disconnected chip component. Notice that the minus side of a tantalum capacitor may be dam- aged by heat. TABLE OF CONTENTS SECTION 1

6、 GENERAL LOCATION AND FUNCTION OF CONTROLS This section is extracted from instruction manual. 3 SRF-S84 SECTION 2 DISASSEMBLY Note : Follow the disassembly procedure in the numerical order given. 2-1. CABINET (REAR) 2-2. MAIN BOARD r The equipment can be removed using the following procedure. Cabine

7、t (rear)SetMain board Cabinet (front) Main board 2 1 Cabinet (front) Cabinet (rear) 4Screw(B1.7 x 8) 1Screw(B1.7 x 8) 2Claw 2Claw 3Claws 4 4 SRF-S84 SECTION 3 DIAL POINTER INSTALLATION Pointer Cabinet (rear) 2 1 Pointer Gear (tuning cpacitor) Cabinet (rear) Washer Knob (tuning) Gear (midway) 3 4 CV1

8、 6 Main board Cabinet (rear) 5 1 Insert the pointer into the cabinet (rear). 2 Slide the pointer to arrow direction. 3 Install the gear (tuning capacitor), and engage with pointer as a figure. 4 Install the gear (midway) and the knob (tuning), and fasten it with washer. 5 Turn the CV1 in a direction

9、 as a figure. 6 Install the main board. Note : Follow the installation procedure in the numerical order given. SRF-S84 55 Procedure : 1. Connect the frequency counter to TP9 as shown the figure. 2. Turn the set to 98MHz. 3. Adjust L4 for 38kHz reading on frequency counter. Standard Value : 37.95 38.

10、05kHz FM VCO Adjustment FM RF signal generator Carrier frequency : 98MHz Modulation : no modulation Output level : 100dB V(100mV) TP6 (RF IN) MAIN board 0.01 F TUNER SECTION AM Section Band : AM Volume : MAX FM Section Band : FM Volume : MAX SECTION 4 ADJUSTMENTS AM RF signal generator 30% amplitude

11、 modulation by 400Hz signal. Output level : as low as possible Put the lead-wire antenna close to the set. FM RF signal generator 22.5: kHz frequency deviation by 400Hz signal Output level : as low as possible TP6 (RF IN) MAIN board 0.06 F set 16 + Headphone jack (J1) level meter 0dB = 1V Repeat the

12、 procedures in each adjustment several times, and the frequency coverage and tracking adjustments should be finally done by the trimmer capacitors. AM FREQUENCY COVERAGE ADJUSTMENT Adjust for a maximum reading on level meter. L3 CT4 520kHz 1,650kHz AM TRACKING ADJUSTMENT Adjust for a maximum reading

13、 on level meter. L5 CT3 520kHz 1,650kHz FM FREQUENCY COVERAGE ADJUSTMENT Adjust for a maximum reading on level meter. L6 CT1 86.5MHz 109.5MHz FM TRACKING ADJUSTMENT Adjust for a maximum reading on level meter. L1 CT2 86.5MHz 109.5MHz Connect Location : MAIN BOARD (SIDE B) Adjustment Location : CT1 :

14、 FM Frequency Coverage Adjustment CT4 : AM Frequency Coverage Adjustment L3 : AM Frequency Coverage Adjustment L6: FM Frequency Coverage Adjustment L2: FM 2ND OSC Adjustment L5 : AM Tracking Adjustment CT3: AM Tracking Adjustment L1 : FM Tracking Adjustment L4 : FM VCO Adjustment CT2 : FM Tracking A

15、djustment MAIN BOARD (SIDE B)MAIN BOARD (SIDE A) Procedure : 1. Connect the frequency counter to TP10 as shown the figure. 2. Turn the set to 98MHz. 3. Adjust L2 for 57.1MHz reading on frequency counter. Standard Value : 56.85 57.35MHz 2nd OSC Adjustment FM RF signal generator Carrier frequency : 98

16、MHz Modulation : no modulation Output level : 100dB V(100mV) TP6 (RF IN) MAIN board 0.01 F C12 C10 C23 R4 C7 C4 L2 L4 R3 C8 C11 R11 C18 L6 C21 1 16 20 25 30 15 IC1 Q1 C3 L3 C20 C19 S1 -2 -1 L5 AM FERRITE-ROD ANTENNA C22 C9 TP8 TP9 TP10 11 (11)1-682-982- TP9 TP8 10F Frequency counter 1F Connect Locat

17、ion : MAIN BOARD (SIDE B) C12 C10 C23 R4 C7 C4 L2 L4 R3 C8 C11 R11 C18 L6 C21 1 16 20 25 30 15 IC1 Q1 C3 L3 C20 C19 S1 -2 -1 L5 AM FERRITE-ROD ANTENNA C22 C9 TP8 TP9 TP10 11 (11)1-682-982- TP10 10F Frequency counter 1F TP8 SRF-S84 66 5-1. BLOCK DIAGRAMS Signal Path : FM : AM 301112 16 19 L1,CT2 FM T

18、RACKING 27 2 23 24 14 4 L1 FM RF L5,CT3 AM TRACKING L2 FM 2ND OSC CV1-4 TUNE BAND L4 VCO ON/OFF L4 VCC L6,CT1 FM FREQUENCY COVERAGE L6 FM OSC L3,CT4 AM FREQUENCY COVERAGE L5 AM FERRITED-ROD ANTENNA L5 AM RF L3 AM OSC L2 FM 2ND VCC RIPPLE FILTER Q1 S2-2 MIX 2 MIX 1 17 2 1 13 14 9 7 2 4 11 5 10 1 6 6

19、MUTE SW POWER SW 7 FM/AM P02 FM IF S1 FM ST FM MONO AM S2 POWER MEGA BASS ON OFF CT2CV1 CT1CV2 CT3CV3 CT4CV4 IC1 FM/AM FRONT-END,IF AMP,MPX IC2 MEGA BASS AMP IC3 HEADPHONE AMP i J1 S2 POWER MEGA BASS ON OFF DRY BATTERY SIZE AAA (IEC DESIGNATION R03) 1PC,1.5V VCC S1-2S1-1 FM RF IN FM RF AM IN FM/AM A

20、M OSC FM 1ST OSC FM 2ND LOCAL 0, _ 2 L-CHIN 2 IN 1 IN 1 IN 2 OUT 1 MUTE POWER VCC OUT 2 LP IN R-CH DET OUT MPX IN PLL VCO S2-1 LP GAIN OUT 2 OUT 1 DET IN RV1 VOLUME w LOCAL OSC AM RF AMP AM BPF IF AMP DET FM RF AMP FM LPF LIMITER AMP DISCRI VCO, MPX AM RF AMP FM 1ST OSC FM MIX FM/AM SELECT SECTION 5

21、 DIAGRAMS SRF-S84 77 RV1 VOLUME w 23456789 A 1 B C D E F G H R6 R7 R10 R15 C42 C2 L11 C16 C13 C40 C44 C12 C10 C23 R4 C7 C4 L2 L4 R3 C26 C28 R16 C33 C25 C34 C24 C5 C14 C41 C35 C8 C11 R11 C18 L6 L1 R1 C21 C36 R2 C6 C27 C1 R9 R8 157 14108 -2 -1 IC2 15 106 IC3 1 16 20 25 30 15 IC1 C29 C31 C30 C38 C32 C3

22、7 C39 C43 Q1 C3 L3 C17 C20 C19 S1 -2 -1 -2 -1 -2 -1 L5 AM FERRITE-ROD ANTENNA C22 C9 L9 L7 L8 L10 CT4 CT3 CV3 CV4 CT2 CT1 CV1 CV2 J1 i S2 (POWER) MEGABASStONtOFF S1 BAND FM ST r FM MONO r AM MAIN BOARD (SIDE A)MAIN BOARD (SIDE B) TP3 TP5 TP6 TP7 TP8 TP9 TP10 TP4 TP1 TP2 CV1-4 TUNE DRY BATTERY SIZE A

23、AA (IEC DESIGNATION R03) 1PC, 1.5V 11 (11)1-682-982- 11 (11) 1-682-982- 5-2. PRINTED WIRING BOARDS Ref. No.Location r Semiconductor Location IC1E-6 IC2B-6 IC3D-7 Q1E-7 Note: X : parts extracted from the component side. b : Pattern from the side which enables seeing. (The other layers patterns are no

24、t indicated.) Caution: Pattern face side :Parts on the pattern face side seen from the (Side B)pattern face are indicated. Parts face side : Parts on the parts face side seen from the (Side A)parts face are indicated. SRF-S84 88 CT1 CT2 CT3 CV1 CV2 CV3 C1 C3 C4 L2 C5 CT4 CV4 C6 C7 C8 C9 C10 C11 C24

25、C25 C26C27C28 R6 R7 C29 R8 C35C36 C37 L7 1H 1H 1H L9 C38 C39 C40 C41C42 L1 L10 1H C13 C14 R2 C17 C18 L6 R3 C19C20 C21 C22 R4C33 C34 R15 R16 C30C31 C32 C43 C44R11 Q1 L11 20H L3 R10R9 C23 C12 J1 L8 R1 C16 L4 L5 C2 18p 4.7 16V 100p 3p 1500p 1 0.22 5600p 0.22 0.015 0.47 0.47 0.0471000p0.1 150k 150k 1 50

26、V 4.7k 0.10.1 100 4V 100 4V 220 4V 0.1 100p100p 1 2p 1k 100 4V 1 6.8 2.2 35V 4.7 16V 1 10 6.3V 68k0.47 0.47 0 0 1 50V 10 6.3V 100 4V 22 6.3V 0.11k 2SB1218A 100k100k 1 0.015220 120p 18p FM/AM FRONT-END IF DET,FM MPX FM IF MUTE DET OUT MPX IN PD1 PD2 ST IND AGC GND +VCC FM RF OL AGC AM OSC TUN IND PLL

27、1 PLL2 VCO CONT R OUT L OUT TV 1ST OSC FM 1ST OSC AGC AFC AM RF IN FE GND FM RF IN TV RF IN +VCC FE IMAGE ADJ FM 2ND LOCAL PLL VCO MUTE SWITCH OUT 1 POWER GND OUT 2 VCC POWER SWITCH IN 1 IN 2 REF REF GND POWER AMP IC3 IC1 VCC GND IN 1 IN 2 HP 1 HP 2 LP IN LP GAIN LP OUT OUT 1 OUT 2 DET IN DET IN IC2

28、 MEGA BASS AMP REG FM ST FM MONO AM S1 BAND S1-1 S1-2 S2-2 ON POWER MEGABASS OFF S2 S2-1 FM TRACKING TRACKING AM FREQUENCY COVERAGE FM AM FREQUENCY COVERAGE FM 2ND OSC VCO L4 TUNE CV1-4 CT3,L5 CT1,L6 CT4,L3 L2CT2,L1 RV1 DRY BATTERY REF CXA1129N-T4 LA3550M-TE-L LA4535M-TE-L VOLUME (IEC DESIGNATION R0

29、3) 1PC 1.5V SIZEAAA 5-3. SCHEMATIC DIAGRAM Note: All capacitors are in F unless otherwise noted. pF: F 50 WV or less are not indicated except for electrolytics and tantalums. All resistors are in and 1/4 W or less unless otherwisespecifed. A : B+ Line. H : adjustment for repair. Power voltage is dc

30、1.5 V and fed with regulated dc power supply from battery terminal. Voltages are dc with respect to ground under no-signal (detuned) conditions. no mark : FM () : AM Voltages are taken with a VOM (Input impedance 10 M). Voltage variations may be noted due to normal production tolerances. Signal path

31、. F : FM f : AM SRF-S84 9 r IC BLOCK DIAGRAMS IC1 CXA1129N-T4 IC2 LA3550M-TE-L 1268 FM/TV RF AMP FM/TV MIX FM/TV 1ST LOCAL OSC AFC AM RF AMP OVER LOAD AGC MIX 1 MIX 2 PSN 1 PSN 2 AGC AF AMP LPF DETUNE DET FM LPF AM BPF LOCAL OSC 1/2 COUNTER FM/TV SELECT FM DISCRI FM LIMITTER AMP AM IF AMP (FM TUN IN

32、D) AM DET AGC TUNING IND VCO MUTE SEP CONTROL ST. DECORDER INPUT BUFF VCO LEVEL CONTROL BUFF AMP DC AMP PD SYNC DET R CH AMP L CH AMP LOAD SELECT 1/2 COUNTER FM/AM SELECT M/ST.SW ST.IND FM/TV 30292524232628272220 34579101112131415 1617181921 FM/AM FM/TV 38KHz 0 /2 FM/TV FM/AM 19KHz /2 19KHz 0 38KHz

33、FM IN TV IN NC FM RF GAIN ADJ OL AGC 2ND OSC AM OSC TUN IND PLL1 PLL2 VCO OSC VCO CONT R OUT L OUTST IND PD2 PD1 MPX IN DET OUT MUTE AGC2 NC FM IF NC TV OSC FM OSC AGC1 AM IN NC 1 2 3 4 5 10 9 8 7 6 POWER SWITCH BIAS MUTE SWITCH POWER SWITCH IN-1 PRE-GND IN-2 REF MUTE SWITCH OUT-1 POWER GND OUT-2 VC

34、C AMP1 AMP2 1 2 3 4 5 6 7 14 13 12 11 10 9 ON/OFF 8 IN1 IN2 HP1 HP2 LP-IN LP-GAIN LP-OUT OUT1 OUT2 DET-IN DET-OUT REF VCC GND IC3 LA4535M-TE-L SRF-S84 10 SECTION 6 EXPLODED VIEW NOTE : -XX, -X mean standardized parts, so they may have some difference from the original one. Items marked “ * ”are not

35、stocked since they are seldom required for routine service. Some delay should be anticipated when ordering these items. The mechanical parts with no reference number in the exploded views are not supplied. Accessories and packing materials are given in the last of this parts list. 16 17 15 14 13 7 6

36、 5 3 4 2 1 20 19 18 19 9 10 11 12 8 13-236-173-01 LID, BATTERY CASE 23-236-180-01 TERMINAL (+), BATTERY *3A-3021-741-A MAIN BOARD, COMPLETE 43-236-181-01 TERMINAL (-), BATTERY 53-238-306-01 WASHER 63-919-915-02 KNOB (TUNING) 73-919-918-01 GEAR (MIDWAY) 83-919-919-01 GEAR (TUNING CAPACITOR) 93-236-17

37、7-01 KNOB (BAND) 103-919-920-02 ADAPTOR 113-880-990-00 SCREW (1.7X3),FLAT,(+) SPECIAL Ref. No.Part No.DescriptionRemarkRef. No.Part No.DescriptionRemark Abbreviation AUS : Australian CH: Chinese TW: Taiwan Color Indication of Appearance Parts Example: KNOB, BALANCE (WHITE) . . . . (RED) XX Parts col

38、or Cabinets color 123-236-175-01 POINTER 133-236-171-01 CABINET (FRONT) 143-236-176-01 KNOB (POWER) 153-236-178-01 PLATE, TRANSPARENT 163-236-179-01 EMBLEM (NO.3), SONY 173-236-174-21 PANEL, FRONT.(BLUE) 173-236-174-41 PANEL, FRONT.(GOLD) 183-236-172-11 CABINET (REAR) (AUS,CH,TW) 183-236-172-21 CABI

39、NET (REAR) (E) 193-318-203-31 SCREW (B1.7X8), TAPPING 203-918-543-11 CLIP SRF-S84 11 NOTE : Due to standardization, replacements in the parts list may be different from the parts specified in the diagrams or the components used on the set. -XX, -X mean standardized parts, so they may have some diffe

40、rence from the original one. RESISTORS All resistors are in ohms METAL : Metal-film resistor METAL OXIDE :Metal oxide-film resistor F : nonflammable Items marked “ * ”are not stocked since they are seldom required for routine service. Some delay should be anticipated when ordering these items. SEMIC

41、ONDUCTORS In each case, u : , for example : uA. : A. , uPA. : PA. uPB. : PB. , uPC. : PC. uPD. : PD. CAPACITORS uF : F COILS uH : H When indicating parts by reference num- ber, please include the board. SECTION 7 ELECTRICAL PARTS LIST Ref. No.Part No.DescriptionRemarkRef. No.Part No.DescriptionRemar

42、k *A-3021-741-A MAIN BOARD, COMPLETE * 3-240-356-01 SHEET, ADHESIVE C11-162-918-11 CERAMIC CHIP18PF5%50V C21-162-918-11 CERAMIC CHIP18PF5%50V C31-124-259-11 ELECT4.7uF20%16V C41-162-927-11 CERAMIC CHIP100PF5%50V C51-162-934-11 CERAMIC CHIP3PF0.25PF 50V C61-164-672-11 CERAMIC CHIP1500PF5%16V C71-115-

43、156-11 CERAMIC CHIP1uF10V C81-165-128-11 CERAMIC CHIP0.22uF16V C91-136-683-11 FILM0.0056uF5%100V C101-165-128-11 CERAMIC CHIP0.22uF16V C111-164-245-11 CERAMIC CHIP0.015uF10%25V C121-164-245-11 CERAMIC CHIP0.015uF10%25V C131-115-156-11 CERAMIC CHIP1uF10V C141-162-907-11 CERAMIC CHIP2PF0.25PF 50V C161

44、-162-928-11 CERAMIC CHIP120PF5%50V C171-124-584-00 ELECT100uF20%10V C181-115-156-11 CERAMIC CHIP1uF10V C191-124-257-00 ELECT2.2uF20%50V C201-124-259-11 ELECT4.7uF20%16V C211-115-156-11 CERAMIC CHIP1uF10V C221-126-157-11 ELECT10uF20%16V C231-115-156-11 CERAMIC CHIP1uF10V C241-113-619-11 CERAMIC CHIP0

45、.47uF10V C251-113-619-11 CERAMIC CHIP0.47uF10V C261-164-361-11 CERAMIC CHIP0.047uF16V C271-162-964-11 CERAMIC CHIP0.001uF10%50V C281-164-156-11 CERAMIC CHIP0.1uF25V C291-104-942-11 ELECT1uF20%50V C301-104-942-11 ELECT1uF20%50V C311-126-157-11 ELECT10uF20%16V C321-124-584-00 ELECT100uF20%10V C331-113

46、-619-11 CERAMIC CHIP0.47uF10V C341-113-619-11 CERAMIC CHIP0.47uF10V C351-164-156-11 CERAMIC CHIP0.1uF25V C361-164-156-11 CERAMIC CHIP0.1uF25V C371-124-584-00 ELECT100uF20%10V C381-124-584-00 ELECT100uF20%10V C391-124-434-00 ELECT220uF20%4V C401-164-156-11 CERAMIC CHIP0.1uF25V C411-162-927-11 CERAMIC

47、 CHIP100PF5%50V C421-162-927-11 CERAMIC CHIP100PF5%50V C431-126-153-11 ELECT22uF20%6.3V C441-164-156-11 CERAMIC CHIP0.1uF25V CT11-141-524-12 CAP, VAR (FM FREQUENCY COVERAGE) CT21-141-524-12 CAP, VAR (FM TRACKING) CT31-141-524-12 CAP, VAR (AM TRACKING) CT41-141-524-12 CAP, VAR (AM FREQUENCY COVERAGE) CV11-141-524-12 CAP, VAR (TUNE) CV21-141-524-12 CAP, VAR (TUNE) CV31-141-524-12 CAP, VAR (TUNE) CV41-141-524-12 CAP, VAR (TUNE) IC18-752-061-76 IC CXA1129N-T4 IC26-700-365-01 IC LA3550M-TE-L IC36-700-362-01 IC LA4535M-TE-L J11-563-857-11 JACK, HEADPHONE(2) L11-428-309-11 COIL, AIR-CORE (