BUSH schematic diagram service manual circuit diagram wiring schema repair instruction guide user manual free pdf download

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Brand Name Model Chassis

TV Bush 1400 Alba CTV1300 Alba CTV1400 Harwood HTV3604R

TV Bush 1402 Orion 14LR chassis Alba CTV840, Hinary HIT140RC Goodmans 1404, 1404A

TV Bush 1402 Alba CTV840

TV Bush 1407 Orion 14LR chassis Alba CTV840

TV Bush 1418

TV Bush 1427T Alba CTV841

TV Bush 1430 Sanyo EC2-B14

TV BUSH 1431

TV Bush 1431 Grundig G1000

TV BUSH 1432

TV Bush 1432 Grundig G1000

TV BUSH 1433

TV Bush 1433 (10000108) 11AK08 (remote 900) or 11AK20 (remote 930) depends on the year, AK20 after 1999 AK20 prod.code: 10000108

TV Bush 1433 (silver) 11AK20M-6 1999- AK20 prod.code: 10000129, 10000811

TV Bush 1433 (white) (10001493) 11AK20M-6 1999- AK20 prod.code: 10001493

TV BUSH 1433 11AK20

TV Bush 1433 11AK08-12

TV Bush 1433(GRN) (10000809) 11AK20M-6 1999- AK20 prod.code: 10000809

TV Bush 1433(yellow) 11AK20M-6 1999- AK20 prod.code: 10000132, 10000810

TV Bush 1433/CORN (10000807) 11AK20M-6 1999- AK20 prod.code: 10000807

TV Bush 1433/LILIAC (10000808) 11AK20M-6 1999- AK20 prod.code: 10000808

TV Bush 1433/MINT (10000806) 11AK20M-6 1999- AK20 prod.code: 10000806

TV Bush 1433AL-BLUE(10000109) 11AK20M-6 1999- AK20 prod.code: 10000109

TV Bush 1433BLU3 (10013255) 11AK36-2(2002), 11AK36A2(2003) 2002-2003 AK36 prod.code: 10013255

TV Bush 1433GRN2 11AK20S

TV Bush 1433SIL (10013014) 11AK36A2 2002-2003 AK36 prod.code: 10013014

TV BUSH 1434

TV Bush 1434 11AK08 or 11AK20M-6 depends on the year, AK20 after 1999 AK20 prod.code: 10000110

TV Bush 1434 11AK08 11AK20

TV BUSH 1435

TV Bush 1435 11AK08, 11AK36

TV Bush 1435 11AK08 11AK20

TV Bush 1435GTV (silver) 11AK20M-6 1999- AK20 prod.code: 10001494 remote 930

TV Bush 1436 11AK08-13 or 11AK20M-6 11AK20 after 1999 AK20 prod.code: 10000131

TV Bush 1438 (10001492) 11AK20D2, 11AK20SE, 11AK20M-6 AK20 prod.code: 10001492

TV Bush 1438SIL (10061680) 11AK20S 2000

TV Bush 1438SIL 11AK36A2

TV Bush 1439 PT11

TV Bush 1442 11AK20S

TV Bush 1444 (10008717) 11AK20SE 2001 AK20 prod.code: 10008717 remote 1940, part 30000054

TV Bush 1452T Same as Alba CTV841 Kong Wah K-91151T also Bush 1452T, Matsui 2074 Goldstar CIS4441

TV Bush 1452T Kong Wah K-91151T Alba CTV841 Matsui 2074

TV Bush 1459T Onwa

TV Bush 1470T 1480TS

TV BUSH 1470T EC3A

TV BUSH 1471T

TV Bush 1471T Grundig G1000

TV BUSH 1472T

TV Bush 1472T Grundig G1000

TV Bush 1473 11AK08-13

TV Bush 1473T (blue) (10000812) 11AK20M-6 1999- AK20 prod.code: 10000812

TV Bush 1473T (green)(10000802) 11AK20M-6 1999- AK20 prod.code: 10000802

TV Bush 1473T (silver)(10000130) 11AK20M-6 1999- AK20 prod.code: 10000130

TV Bush 1473T (white)(10000804) 11AK20M-6 1999- AK20 prod.code: 10000804

TV Bush 1473T (yellow)(10000803) 11AK20M-6 1999- AK20 prod.code: 10000803

TV BUSH 1473T 11AK08 ?

TV Bush 1473T 11AK08-12 or 11AK20M-6 depends on the year, AK20 after 1999 AK20 prod.code: 10000106

TV Bush 1473T/LILIAC (10001491) 11AK20M-6 1999- AK20 prod.code: 10001491

TV Bush 1473T/MINT (10001490) 11AK20M-6 1999- AK20 prod.code: 10001490

TV Bush 1474 11AK08-14 11AK20M-3

TV BUSH 1474T

TV Bush 1474T 11AK08-14 or 11AK20M-6 depends on the year, AK20 after 1999 AK20 prod.code: 10000111, 10000805

TV Bush 1476T 11AK08

TV Bush 1477T chassis EC

TV BUSH 1478T

TV Bush 1478T 11AK20M-6

TV Bush 1478TSIL 11AK36 2003, £69.99

TV Bush 147TT same as Alba CTV841 also Bush 1452T

TV Bush 1480TS 1470T

TV Bush 1497ITV 11AK20S (with Internet access)

TV BUSH 1497ITV/3 11AK20S-M29

TV BUSH 14T1 CP370

TV BUSH 1500

TV Bush 1500

TV BUSH 1550T

TV Bush 1557

TV BUSH 1557NTX

TV Bush 1557NTX Micro CTV322S V1.2

TV Bush 170KA =Bush 1773T

TV Bush 1773T Orion CTN chassis (label says PT6T) LOPTx 40337-53, serv. Mode - short Micro remote RC2143

TV BUSH 2002

TV Bush 2002 Kong Wah K-91151T Alba CTV841 Matsui 2074 Goldstar CIS4441

TV Bush 2002 Onwa

TV Bush 2002 Kong Wah K-91151T Alba CTV841 Matsui 2074

TV Bush 2002 Onwa

TV Bush 2004 Matsui 1436 Alba CTV100

TV Bush 2004T Indiana 100

TV Bush 2007 2007 2033T 2167NTX 2169NTX Alba CTV3458

TV Bush 2009 Alba CTV601

TV Bush 2009B Onwa

TV Bush 2011 11AK19-8A 1999- AK19 prod.code: 10000232

TV Bush 2017SIL 11AK30-2(2002),11AK30A4(2002-2003),11AK302002-2004

TV Bush 2020 11AK01 Kong Wah K-91151T, Alba CTV841 Matsui 2074 Goldstar CIS4441

TV Bush 2020 Matsui 1580 Saisho CM159TX

TV Bush 2020 Kong Wah K-91151T Alba CTV841 Matsui 2074

TV Bush 2020 Matsui 1580 Saisho CM159TX 11AK01

TV BUSH 2020T

TV Bush 2023 11AK10-17

TV Bush 2023T 11AK10-11, 11AK19-8A, 11AK19B-1 AK19 after 1999 AK19 prod.code: 10000231

TV BUSH 2023TA

TV Bush 2027T PT9601 (Goodmans GTV211)

TV BUSH 2028T

TV Bush 2028T 11AK10-17 prod.code: 10000258, 10000970

TV BUSH 2029T

TV Bush 2030T 11AK19-8A

TV Bush 2031T 11AK19-8A 1999- AK19 prod.code: 10000230

TV Bush 2033T 2007 2033T 2167NTX 2169NTX Alba CTV3458

TV Bush 2034T 11AK19 or 11AK30(2002-2003) 11AK30 - 10014182

TV Bush 2037TSIL 11AK30A4 2002-2003 10014184

TV BUSH 2038TSIL 12.7 (G70.190-10

TV Bush 2038TSIL Beko 12.7 PCB marked G70.190-10

TV Bush 2040

TV BUSH 2044

TV Bush 2052 Kong Wah K-91151T Alba CTV841 Matsui 2074 Goldstar CIS4441

TV Bush 2052 Kong Wah K-91151T Alba CTV841 Matsui 2074

TV BUSH 2052T

TV Bush 2052T Onwa

TV BUSH 2057

TV Bush 2057 Bush 2059 Bush 2157 Bush 2159

TV BUSH 2059

TV Bush 2059 see Bush 2057

TV BUSH 2059NTX

TV Bush 2060NTX NEW ONWA similar to Alba CTV4886

TV BUSH 2063NTX

TV Bush 2063NTX 11AK10-8

TV Bush 2063NTX/A 11AK10-15 AK10 prod.code: 1000257

TV Bush 2064

TV BUSH 2064NTX

TV Bush 2067NTX PT9601 (Goodmans GTV211)

TV Bush 2068NTX 11AK10-17

TV Bush 2071NTX 11AK19-8A, 11AK19E3(2000), 11AK19P5(2002)1999-2002 AK19 prod.code: 10000229

TV Bush 2077NTXSIL 11AK30-2 (2002),11AK30A4 (2002-2003),11AK32002-2004

TV BUSH 2085NTX

TV BUSH 20T1 CP370

TV BUSH 2102

TV Bush 2102 Onwa

TV BUSH 2114

TV Bush 2114 11AK01 Kong Wah K-91151T, Alba CTV841 Matsui 2074 Goldstar CIS4441

TV Bush 2114 Kong Wah K-91151T / 11AK01 Alba CTV841 Matsui 2074

TV Bush 2131

TV Bush 2131TSIL 11AK19P4, 11AK19P5 AK19 prod.code: 10006073

TV Bush 2134TSIL 11AK30 £130

TV Bush 2136TSIL Beko

TV Bush 2137TSIL 11AK30 2002-2003, £149.99 prod.code: 10015421

TV Bush 2138TSIL Beko 12.7 2003, £149.99 PCB marked G70.190-6 Micro SDA5535-A062

TV Bush 2151(TX) Indiana 100

TV BUSH 2151T

TV Bush 2152 Kong Wah K-91151T Alba CTV841 Matsui 2074 Goldstar CIS4441

TV Bush 2152 Kong Wah K-91151T Alba CTV841 Matsui 2074

TV BUSH 2152T

TV Bush 2152T Onwa

TV Bush 2157 see Bush 2057

TV BUSH 2157NTX

TV Bush 2159 see Bush 2057

TV BUSH 2159NTX

TV Bush 2160NTX Grundig G1000

TV BUSH 2163NTX 11AK10

TV Bush 2164NTX 11AK19-8A, 11AK19B-1 1999- AK19 prod.code: 10000364 Micro SDA5255-A059(11AK19-xx), SDA5255-A073(11AK19-8A), SDA5255-A045(11AK1

TV BUSH 2167NTX

TV Bush 2167NTX 2007 2033T 2167NTX 2169NTX Alba CTV3458

TV BUSH 2168

TV BUSH 2169NTX

TV Bush 2169NTX 2007 2033T 2167NTX 2169NTX Alba CTV3458

TV Bush 2171NTX 11AK19-8A 1999- AK19 prod.code: 10000363

TV Bush 2171NTXSIL 11AK19P5 AK19 prod.code: 10006101

TV Bush 2177NTXSIL 11AK30-2(2002),11AK30A4(2002-2003),11AK302002-2004

TV BUSH 2190

TV BUSH 21T1 CP370

TV Bush 2214 Osume CTV1474R Alba CTV841

TV Bush 2321 11AK01 Kong Wah K-91151T, Alba CTV841 Matsui 2074 Goldstar CIS4441

TV Bush 2321 Kong Wah K-91151T / 11AK01 Alba CTV841 Matsui 2074

TV BUSH 2321T

TV Bush 2420 (2420 Mk I) chassis C600

TV Bush 2514 similar to 2114 Indiana 100/200

TV BUSH 2514T

TV Bush 2514T Indiana 100

TV Bush 2515 Indiana 100/200

TV BUSH 2515T

TV Bush 2515T Indiana 100

TV Bush 2520 NEI 2031TX Indiana 100/200 Turkish

TV BUSH 2520T

TV Bush 2520TX Indiana 100 Turkish

TV Bush 2521 NEI 2031TX Indiana 100/200 Turkish

TV BUSH 2521T

TV Bush 2521TX Indiana 100 Turkish

TV Bush 2534TSIL 11AK19P5 prod.code: 10014200

TV Bush 2541(TX) Indiana 100

TV Bush 2550NTX Schneider TV4 Serv. Mode: see Bush 2850NTX

TV BUSH 2550NTX TV4

TV Bush 2550NTX/A Schneider TV8

TV BUSH 2550NTX-A TV8

TV BUSH 2557NTX

TV BUSH 2568NTX

TV Bush 2568NTX 11AK19-08

TV BUSH 2571NTX

TV Bush 2571NTX 11AK19-8A, 11AK19E3 1998-2000 AK19 prod.code: 10001134, 100006102

TV Bush 2574NTXSIL 11AK19P4, 11AK19P5 2001-2002 AK19 prod.code: 10009365

TV Bush 2714 11AK03 Chassis

TV Bush 2720 11AK03 Chassis

TV Bush 2721 11AK03 Chassis

TV Bush 2768NTSIL SM2

TV Bush 2814 11AK03 Chassis

TV Bush 2814T 11AK03 Chassis

TV Bush 2820 11AK03 Chassis

TV BUSH 2820T

TV Bush 2820T 11AK03

TV Bush 2821 11AK03 Chassis

TV Bush 2821T 11AK03

TV Bush 2850NTX Schneider TV4 Serv. mode: press RED and BLUE on R/C together then within 5 sec press P- and V+ together on TV. If you do not have original remote, use any Philips RC5 remote

TV BUSH 2850NTX TV4

TV Bush 2850NTX/A Schneider TV8

TV Bush 2850NTX/A TV8

TV BUSH 2850NTX-A TV8

TV BUSH 2855T

TV Bush 2855WD Schneider TV4

TV BUSH 2857NTX

TV Bush 2857NTX Harwood HTV9425RTN Amstrad CTV280

TV Bush 285NS Daewoo CP775

TV Bush 2863NTX 11AK12

TV BUSH 2863NTX 11AK12

TV Bush 2863NTX 11AK12-9

TV Bush 2863NTX/A 11AK19-8A

TV Bush 2866NTX SM1 Stereo

TV BUSH 2866NTX SM2

TV Bush 2866NTXSM2 SM2

TV Bush 2867NTX 11AK12 or 11AK19

TV Bush 2868NTX 11AK19-5, 11AK19-8A 1999- AK19 prod.code: 10000518

TV Bush 2870VPL 11AK19-8A

TV BUSH 2871 11AK19-3

TV BUSH 2871NTX 11AK19-3

TV Bush 2871NTX 11AK19-8A, 11AK19E3 (from March2000), 11AK19P5 (from Apr2002) AK19 prod.code: 10000517, 10006103

TV Bush 2872NTX 11AK19E3

TV BUSH 2874NTX 11AK19

TV Bush 2874NTX 11AK19E3

TV BUSH 2874NTXSIL 11AK19 PRO

TV Bush 2874NTXSIL 11AK37-6 2002

TV BUSH 2876NTX PT92

TV Bush 2876NTX PT92 2001

TV Bush 2877NTXSIL 11AK19P4, 11AK19P5 or 11AK37-8 2001-2002(11AK19), 2003(11AK37) AK19 prod.code: 10009515

TV Bush 2879

TV Bush 2879 C43 (Alba CTV-743)

TV Bush 28ZKA 4400 chassis

TV BUSH 28ZKA WS6667 4400 PROFESSI

TV Bush 28ZKF 4400 chassis

TV BUSH 2914

TV Bush 2914 C43 (Alba CTV-743)

TV Bush 2914 Alba CTV743

TV Bush 2920T Alba CTV703 CTV704T CTV713 Hinari HIT51T

TV Bush 2921 Alba CTV703 CTV704T CTV713 Hinari HIT51T

TV Bush 2921T Alba CTV703 CTV704T CTV713 Hinari HIT51T

TV BUSH 3114

TV Bush 3114 Orion 14EBS Saisho CT149X (TVS 89-90 P231)

TV Bush 3114A/AS Orion 14LR chassis Matsui 1466, Hinary HIT140RC

TV Bush 3114AT Osaki 3114AT

TV Bush 3370VPL 11AK19

TV Bush 3463NTX 4400 chassis around £700-£800

TV BUSH 3463NTX 4400 PROFESSI

TV Bush 3472NTX (34BKD) 4400 chassis

TV BUSH 3472NTX 4400 PROFESSI

TV Bush 4414

TV Bush 6690D 11AK19B1 +digibox AK19 prod.code: 10003064

TV Bush 6693D 11AK33J4 +digibox 2003 £349, 2004 £299 10019795

TV BUSH 6693D 11AK45B5

TV Bush 7690D 11AK19B1 +digibox

TV Bush 7693D 11AK33J4 +digibox 2003, 2004 £399 10019794

TV Bush A823

TV Bush AC6465 Rank T23A

TV Bush BC6004 Murphy MC6124 Murphy 6425

TV Bush BC6268 T22A BC6238 BC6468

TV Bush BC7100 Saba chassis

TV Bush BC7200 T24E Murphy MC7240

TV Bush BC7300 T26A

TV Bush BT14 chassis TV14 Bush BTV140T

TV Bush BTV10 Orion chassis (Alba VTV10)

TV Bush BTV140T Bush BTV14

TV Bush BTV16 similar to BTV20 Serv.mode: MENU-MUTE-PAUSE-MUTE

TV BUSH BTV17

TV Bush BTV17 Orion chassis, deck OVD-6; same as GoodmansPCB marked TM9423A, video VM9162A Micro OEC0078A, option codes PSU IC STRF6707

TV Bush BTV17/OVD7 Orion chassis, deck OVD-7 PSU IC STRG6653

TV Bush BTV170TBLK Orion chassis PCB marked TM9423A PSU IC STRF6707

TV BUSH BTV17A

TV Bush BTV17A similar to BTV17 PCB marked VMX193G Micro OEC0093 PSU IC STRF6707

TV BUSH BTV17SIL

TV BUSH BTV17SIL/OVD7 (VMA230A)

TV Bush BTV17SIL/OVD7 Orion chassis, deck OVD-7 PCB marked VMA230A

TV Bush BTV180TSI 2004 £99

TV Bush BTV183DVD TV/VCR/DVD 2003, £249; 2004 £199

TV BUSH BTV18SIL

TV Bush BTV18SIL Orion chassis, deck OVD-7, 2003 £99 PSU PCB VPA150A

TV BUSH BTV18SIL VA (VMB290A_C3)

TV BUSH BTV18SIL/VA

TV Bush BTV18SIL/VA Orion chassis, deck OVD-7 PCB marked VMB290A Micro OEC0133A

TV Bush BTV20 similar to BTV16 Serv.mode: MENU-MUTE-PAUSE-MUTE

TV Bush BTV213DVD TV/VCR/DVD 2003, £329

TV Bush CTV1400 Harwood HTV3604R

TV BUSH CTV3409 11AK08

TV BUSH CTV3459 11AK08

TV BUSH CTV4859

TV Bush CTV601

TV BUSH DVD142RC 11AK46

TV Bush DVD142RC 11AK46-1 +DVD Serv.mode: INSTALL-4-7-2-5 remote

TV BUSH DVD142TV 11AK46

TV Bush DVD142TV 11AK46-1, 11AK46-5 +DVD 2003, £170 remote

TV Bush DVD143TVFTNT1 PT90 +DVD remote 631020001381

TV Bush DVD144RC 2004, £99

TV Bush DVD145TV 2003, £140

TV Bush DVD660TV PT90 +DVD remote 631020001381

TV Bush DVD660TVSIL/A PT92 +DVD

TV BUSH DVD660TVSIL/A PT92DVD

TV BUSH GT1401

TV BUSH GT1402

TV BUSH GT2001

TV BUSH GT2003

TV BUSH GT2101

TV BUSH GT2103

TV BUSH GT2105

TV BUSH GTV147 11AK08-9A

TV BUSH GTV148T

TV Bush IBX260 INTERNET Box double scart 2001 Vestel prod.code: 10009407

TV Bush ITV2100 Beko 14.1

TV Bush ITV2112 Beko 12.4 with Internet access Micro SDA555x (SB7640-03/TXT), video NNserv.mode: MENU, then 7,5,9,2.

TV Bush ITV2800 Beko 14.1 with Internet PCB 7SZ.190-14, remote KWR2020 Micro SAA5563PS/M3, jungle TDA8843, sound MSP3410D

TV Bush ITV6600 Beko 14.1 PCB 7SZ.190-17

TV BUSH ITV8401 11AK20S

TV Bush ITV8401 11AK20S with Internet access

TV Bush M1400 Fidelity ZX3000 Mk2

TV Bush M1500 Fidelity ZX3000 Mk2

TV Bush M20T01 Fidelity ZX4000

TV Bush M22T01 Fidelity ZX4000

TV BUSH MT1402

TV BUSH MT2103

TV BUSH RF2185NTXSIL 16.1 (ZA4.190-12

TV BUSH RF6682VPL 14.2 (U99.190-07)

TV Bush RF6682VPL Beko 14.1 or 14.2 2001(14.1); 2002(14.2) 14.1 - PCB marked 7SZ.190-18; 14.2 - PCB marked S99.190-04, S99.190-07

TV Bush RF7682VPL Beko 14.1 or 14.2 14.2 - PCB marked S99.190-07

TV Bush T20

TV Bush WS5673SIL (10016197) 11AK37-10, 11AK37-11 AK37 prod.code: 10016197

TV Bush WS5676SIL 11AK37

TV Bush WS5680 2004, £180

TV BUSH WS5680SIL

TV Bush WS6667 (28ZKA) 4400 chassis

TV BUSH WS6667 4400 PROFESSI

TV Bush WS6668SIL (28ZKV) 4400 chassis PCB marked B-4411

TV Bush WS6671 (10004932) 11AK19P4, 11AK19P5 in 11AK19P4 Micro is 19V1.OFT-A14 AK19 prod.code: 10004932

TV Bush WS6671SIL (10006104) 11AK19P4, 11AK19P5 AK19 prod.code: 10006104

TV Bush WS6671SIL (10014467) 11AK37-8 AK37 prod.code: 10014467

TV BUSH WS6671SIL 11AK19...

TV Bush WS6672 PT92

TV Bush WS6673 (10014458) 11AK37-8 2002- AK37 prod.code: 10014458

TV Bush WS6673 11AK19P5

TV Bush WS6673SIL (10008659) 11AK19P4, 11AK19P5 2001-2002 AK19 prod.code: 10008659

TV Bush WS6673SIL (10014469) 11AK37-8 2002- AK37 prod.code: 10014469

TV BUSH WS6673SIL 11AK19P5

TV BUSH WS6674 PT92

TV Bush WS6674 PT92 2002/2003, £199

TV Bush WS6677 11AK19

TV Bush WS6680SIL Beko 14.2 chassis 2003, £250 PCB U99.190-07

TV Bush WS7667 4400 chassis

TV BUSH WS7667 4400 PROFESSI

TV BUSH WS767 11AK19

TV Bush WS7671 11AK19B1, 11AK19P4

TV Bush WS7673 11AK19P5 or 11AK37-6 (after 2002) in 11AK19 Micro 19V1.OFT-A14

TV Bush WS7673SIL (10008660) 11AK19P4, 11AK19P5 2001-2002 AK19 prod.code: 10008660

TV Bush WS7673SIL (10014465) 11AK37-6 AK37 prod.code: 10014465

TV Bush WS7674SIL PT92

TV Bush WS7680SIL Beko 14.2 chassis

TV Bush WST66 (28ZKF) 4400 chassis PCB marked B-4410 Options: Op1-A8, Op2-F8, Op3-1B

TV BUSH WST66 4400 PROFESSI

TV Bush Z179

TV Bush Z718


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	CAUTION: Before servicing receivers covered by this service manual and its supplements and addenda, read and follow the SAFETY PRECAUTIONS of this publication. Remember: Safety First. General Guidance An isolation Transformer should always be used during the servicing of a receiver whose chassis is not isolated from the AC power line. Use a transformer of adequate power rating as this protects the technician from accidents resulting in personal injury from electrical shocks. It will also protect the receiver and it's components from being damaged by accidental shorts of the circuitry that may be inadvertently introduced during the service operation. If any fuse (or Fusible Resistor) in this TV receiver is blown, replace it with the specified. When replacing a high wattage resistor (Oxide Metal Film Resistor, over 1W), keep the resistor 10mm away from PCB. Keep wires away from high voltage or high temperature parts. General Servicing Precautions 1. Always unplug the receiver AC power cord from the AC power source before; a. Removing or reinstalling any component, circuit board module or any other receiver assembly. b. Disconnecting or reconnecting any receiver electrical plug or other electrical connection. c. Connecting a test substitute in parallel with an electrolytic capacitor in the receiver. CAUTION: A wrong part substitution or incorrect polarity installation of electrolytic capacitors may result in an explosion hazard. 2. Test high voltage only by measuring it with an appropriate high voltage meter or other voltage measuring device (DVM, FETVOM, etc) equipped with a suitable high voltage probe. Do not test high voltage by "drawing an arc". 3. Do not spray chemicals on or near this receiver or any of its assemblies. 4. Unless specified otherwise in this service manual, clean electrical contacts only by applying the following mixture to the contacts with a pipe cleaner, cotton-tipped stick or comparable non-abrasive applicator; 10% (by volume) Acetone and 90% (by volume) isopropyl alcohol (90%-99% strength) CAUTION: This is a flammable mixture. Unless specified otherwise in this service manual, lubrication of contacts in not required. 5. Do not defeat any plug/socket B+ voltage interlocks with which receivers covered by this service manual might be equipped. 6. Do not apply AC power to this instrument and/or any of its electrical assemblies unless all solid-state device heat sinks are correctly installed. 7. Always connect the test receiver ground lead to the receiver chassis ground before connecting the test receiver positive lead. Always remove the test receiver ground lead last. 8. Use with this receiver only the test fixtures specified in this service manual. CAUTION: Do not connect the test fixture ground strap to any heat sink in this receiver.