Kenwood SP 520 Service Manual

Page 2

CONTENTS

EXTERNAL VIEW ..................................................... 1

PARTS ALIGNMENT ................................................... 2
SECTION 1. INTRODUCTION ........................................... 3
SECTION 2. TROUBLE-SHOOTING ...................................... 3
SECTION 3. MAINTENANCE AND ALIGNMENT .......................... 6
PARTS LIST ......... . ............................................... 16
PC BOARD ........................................................... 27
VFO-520
EXTERNAL vIEw ............................................ 36
SPECIFICATION .................................................. 36
PARTS LIST .......................... I ........................... 3 7
SCHEMATIC DIAGRAM ............................................ 38
SP-520
EXTERNAL VIEW ................................................. 39
PARTS LIST ...................................................... 39
SPECIFICATION ............................................ . ...... 39
SCHEMATIC DIAGRAM (RF UNIT) ...................................... 4o
SCHEMATIC DIAGRAM ............................................... 41
SCHEMATIC DIAGRAM (RF UNIT) ......................... . ............. 42

SCH EMATIC DIAGRAM ................................................ 43

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Circuit No. Parts No. 1 Description Circuit No. Parts No Description
_. E11-0003-1 5 E us jack - J21-120204 Speaker mounting hardware assy
_ 11511000505 [ 3P phone jack - J29-0045-14 VR mounting reinforcement
_ E1 170034.05 ) US jack 7 J32-0074-04 Hexagonal boss x 8
- E12-0001-05 3 Phone plug 7 J32-0081-04 Hexagonal boss x 4
- E13-0101-05 E 1P pin jack - J32-0127-04 Hexagonal boss
7 E14-0101-05 1P pin plug - J32-0182-04 Hexagonal boss x 4
- )E14-0801-05 3 US plug - J32-0183-04 Hexagonal boss
- iE20-0512-05 ; 5P terminal strips - J32-1030-14 Round boss
- E20-0513-05 i 5P terminal strips - J41-0020-04 Knob bushing
- E20-1003-05 i 10P terminal strips - J41-0024-15 Cord bushing
- E22-0206-05 ! Lug board 7 J59-0001-05 Grommet
7 E22-0207-05 l Lug board - J59-0002-05 Plunger
7 E22-0214-05 : Lug board - J61-0018-05 ' Beaded band
- 5E22-0405-04 i Lug board -- J61-0019-05 Wire wrapping band
- EE22-0603-04 ! Lug board - J61-0036-05 Free-up belt
- 3523-0016-04 i Lug board
- EE23-0037-04 Shaft grounding hardware - K01-0049-05 Knob
- )E30-0181-05 : AC cord (U.S.Av) - K21-0266-04 Knob
- )E30-0214-05 5 Co-axial cable assy - K21-0267-O4 Knob x 5
- E90-0004-15 Plate cap x 2 7 K21-0268-04 Knob x 2

3 l - K21-0269-04 Knob x 3
- (FOE-203205 Fuse (20A) 7 K23-0270-04 Knob x 2
_ Pros-4022.05 I Fuse (4A) e K23-0271-03 Knob
7 FOB-602105 Fuse (6A) - K29-0166-04 Knob x 2
- F07-0315-13 Final cover - K29-0167-23 Knob wafer
7 F10-0321-04 Coil pack shield plate
7 F10-0322-04 Relay shield plat - L01-0214-05 Powertransformer
- F11-0186-13 Final shield case - L15-0002-15 Choke coil
7 F1 5-01 61-04 g Shading plate L3 L33-0098-05 Ferri-inductor
- F19-0134-04 Side cover L4 L33-O101-05 Perri-ind uctor
L5 L33-0032-05 Choke coil
- G11-0008-04 Cushion L6 L33-0160-05 Final choke
7 G11~0044-O4 Cushion L7 L31-0316-05 Final coll (B)
L8 L31-0142-05 Final coil (A)
7 H01 -1014-04 Carton case (Inside) (England) L9 LBS-003205 Choke coil
- H01-104204 Carton case (Inside) (U .S.A.,Europe) L10 LBS-010105 Perri-inductor
7 (HOB-028304 Carton case (Outside)IU.S.A.,Europe) L11 L33-0110-05 Perri-inductor
- {HOE-030404 Carton case (Outside) (England) L12 L33-0098-05 Ferri-inductor
- H10-0570-04 Retainer Psi , 3 L33-0010-05 Parasitic suppressor
7 H10-0931-02 Polystyrene foamed fixture P53, 4 L39~0046-04 Parasitic suppressor
- [HID-093202 Polystyrene foamed fixture
- )H10-0934-04 Protection board 81 806-1005-05 Rotary switch (METER)
-- H10-0964-04 Retainer S2 801-4017-05 Rotary switch (FUNCTION)
- H20-0371-04 . Protection cover S3 804-5016-05 Rotary switch (MODE)
S4 829-1006-05 Rotary switch (CH SELECTI
7 J02-0049-14 Leg (big) 55 Si 0-1101-05 Rotary switch (FINAL)
7 J02-0022-05 i Leg (small) S7 331-2007-05 Slide switch
7 J13-0004-05 Fuse holder - 840-2023-05 Push switch (R IT, WWV)
- J13-0037v05 Fuse holder (DC cord) S10 844-2018-05 Paddle switch
- Jig-000604 Switch stopper 811.13.14 344-2016-05 Paddle switch
7 J l 9-0360-04 Coupling holder S15 844-2015-05 Paddle switch
7 .1210392-04 Lead holder S16 359-2020-05 See-saw switch (POWER)
- J21-046805 Angle (tank coil) S17 859-2017-65 See-saw switch (VOLTAGE SELECT)
- J21-093444 Handle holder RLI 551-4016-15 Relay
7 J21-114204 Meter mounting R L2 351-4017-15 Relay (FINAL)
7 J21-114304 VR mounting
- J21-114404 Speaker mounting - WO1-0005-04 Adjusting ber
- J21-1 145-04 Lamp stopper
- J21-114604 Coil pack fixture - X40-0017-O1 DRIVE coil unit
- J21-1148434 VC mounting fixture - X40-0018-01 MIX coil unit
- J21-1149-22 IF board holding fixture - X40-00IQ-01 OSC coil unit
7 J21 -1 1 50-04 Indicator mounting fixture - X40-1070-00 VFO unit
- J21-115104 Terminal strip retainer 7 X43-1090-00 Rectifier unit
- J21-115504 Fixed-channel mounting fixture - X43-1100-OO Fixed-channel, AVR unit

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1m in
:> u.
Rafi. an":

Figure 22. ANTENNA COlL Board (X44-1090-00) Diagram

QI,2-250460(B), D1-42l5l555

250460

E? 6p | 51555

E Cathode

Figure 23. CARRIER Board (X50-0009-01) Diagram

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