Pioneer-TX930L-tun-sup电路图 维修手册.pdf

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1、ADDITIONAL Service cTyianual ORDER NO. ARP-122-0 FM/AM DIGITAL SYNTHESIZED TUNER HE,HB MODEL TX-930L COMES IN TWO VERSIONS DISTINGUISHED AS FOLLOWS: Type Voltage Remarks HE 220V and 240V (Switchable) Europeen continent model HB 220V and 240V (Switchable) United Kingdom model The basic performance of

2、 the model TX-930L is the same as the model TX-930. The AM tuner of TX- 930L is a two wave-band tuner with MW (medium wave) and LW (long wave). Please refer to the TX-930/ KU service manual (ARP-119) with the exception of this service manual. This additionai service manual is applicable to the TX-93

3、0L/HE and TX-930L/HB. CONTENTS 1. SPECIFICATIONS 2 2. PARTS LIST 3 3. P.C. BOARD PATTERNS 6 4. SCHEMATIC DIAGRAM 9 5. ADJUSTMENT 12 RGLAGE . 13 AJUSTE 14 Line Voltage Selection Line voltage can be changed with following steps. 1. Disconnect the AC power oord. 2. Remove the top cover. 3. Change the c

4、onnectin of the power trans- fomrerprimary taps. 4. Stick the line voltage label on the rear panel. Part No. AAX-193 AAX-192 Desoiptian 220V label 240V label Ml - - 220V 240V PIONEER ELECTRONIC CORPORATION M e g u r o l - C n o m e . M e g u n o - k u . T o k y o 1 5 3 . J a p a n PIONEER ELECTRONIC

5、S USA INC. 1 9 2 5 E . D o m i n g u e z S c . L o n g B e a c h , C a l i f o m i a S O O I O U . S . A . PIONEER ELECTRONIC EUROPE N.V. L u i c h a g e n - H a v e n S . 2 0 3 0 A n c w e n p . B e l g i u m PIONEER ELECTRONICS AUSTRALIA PTY. LTD. 1 7 8 - 1 3 4 B o u n d a r y R o a d . B n a e s

6、i d e . V i c t o r i a 3 1 3 5 . A u s t r a l i a YH. JUNE 1982 Printed in Japan RadioFans.CN 收音机爱 好者资料库 | X - 9 3 a L . / H E I B 1. SPECIFICATIONS FM Tuner Section Usable Sensitivity 10.8 dBf (0.95 V) 50 dB Quieting Sensitivity Mono; 15.8 dBf (1.7 iV) Stereo; 38 dBf (22 fV) Sensitivity (DIN) Mon

7、o; 1 piV Stereo; 38 Signal-to-Noise Ratio Mono; 78 dB (at 85 dBf) Stereo; 75 dB (at 85 cBf) Signal-to-Noise Ratio (DIN) Mono; 72B Stereo; 62 dB Distortion (at 65 dBf) Mono 1 kHz; 0.08% Stereo 1 kHz; 0.15% Capture Ratio 1.0 dB Alternate Channel Selectivity 400 kHz; 50 dB Stereo Separation 1 kHz; 40 d

8、B 100 Hz to 10 kHz; 40 dB Frequency Response 20 Hz to 15 kHz:; dB Spurious Response Ratio 70 dB Image Response Ratio 40 dB IF Response Ratio 80 dB AM Suppression Ratio 50 dB Muting Threshold 19.2 dBf (5 V) Antenna Input 300 ohms balanced, 75 ohms unbalanced MW Tuner Section Sensitivity (IHF, externa

9、l antenna) 30 Selectivity 25 dB Signal-to-Noise Ratio 50 dB Image Response Ratio 40 dB IF Response Ratio 60 dB Antenna Loop antenna LW Tuner Section Sensitivity (IHF, external antenna) 45 V Selectivity 25 dB Signal-to-Noise Ratio 50 dB Image Response Ratio 40 dB IF Response Ratio 60 dB Antenna Loop

10、antenna Audio Section FM (100% MOD) 650 mV/2.2 kQ AM (30% MOD) 190mV/2.2kQ Misceilaneous Power Requirements AC 220 V, 50 Hz Power Consumption 17 W Dimensions 420 (W) x 69 (H) x 219 (D) mm 16-9/19 (W) X 2-11/16 (H) x 8-5/8 (D) in Weight (without package) 2.9 kg (6 Ib 6 oz) Furnished Parts FM T-type A

11、ntenna 1 AM Loop Antenna 1 Antenna Catcher 1 Connectin Cord with Pin Plugs 1 Operating Instructlons 1 NOTE: Specifications and design subject to possible modification without notice. RadioFans.CN 收音机爱 好者资料库 2. PARTS LIST NOTES: When ordering resistors, first convert resistance values into code form

12、as shown in the following examples. Ex. 1 When there are 2 effective digits (any digit apart from 0), such as 560 ohm and 47k ohm (tolerance is shown by J = 5%, and K - 10%). 560n 56x10 561 RDAPS SmUJ 47hil 47x10 473 RDAPS J 0.5a 0R5 i?iV2H O e S l / C ia 010 RSlPUniUK Ex. 2 When there are 3 effecti

13、ve digits (such as in high precision metal film resis- tors). 5.62kn, 562x 100 5621 RNASR mm2IlF The mark found on some component parts indicates the importance of the safety factor of the part. Therefore, when replacing, be sure to use parts of identical designation. For your Parts Stock Control, t

14、he fast moving items are indicated with the marks * and *. GENERALLY MOVES F ASTER THAN . This classification shall be adjusted by each distributor because it depends on model number , temperature, humidity, etc. Contrast of Misceilaneous Parts ELECTRICAL PARTS Mark Symbol & Description Part No. Rem

15、arks Mark Symbol & Description TX-930/KU TX-930L/HE TX-930L/HB Remarks A * A * A A Tl 01 Power transformer (120V) Tl01 Power transformer (220/240V) R1 Carbon composition resistor 2.2My2W Lithium battery (Ni-Cd alkaline storage battery)* AC power cord Tuner assembly Complex assembly ATT-916 ACN-029 A

16、EX-008 (AEX-OID* ADG-052 AWM-439 AWM-433 A * A * A A Tl 01 Power transformer (120V) Tl01 Power transformer (220/240V) R1 Carbon composition resistor 2.2My2W Lithium battery (Ni-Cd alkaline storage battery)* AC power cord Tuner assembly Complex assembly ATT-916 ACN-029 AEX-008 (AEX-OID* ADG-052 AWM-4

17、39 AWM-433 ATT-906 ATT-906 A * A * A A Tl 01 Power transformer (120V) Tl01 Power transformer (220/240V) R1 Carbon composition resistor 2.2My2W Lithium battery (Ni-Cd alkaline storage battery)* AC power cord Tuner assembly Complex assembly ATT-916 ACN-029 AEX-008 (AEX-OID* ADG-052 AWM-439 AWM-433 AEX

18、-008 AEX-008 A * A * A A Tl 01 Power transformer (120V) Tl01 Power transformer (220/240V) R1 Carbon composition resistor 2.2My2W Lithium battery (Ni-Cd alkaline storage battery)* AC power cord Tuner assembly Complex assembly ATT-916 ACN-029 AEX-008 (AEX-OID* ADG-052 AWM-439 AWM-433 ADG-062 AWM-420 A

19、WM-419 ADG-063 AWM-420 AWM-419 * Either of batteries (Ni-Cd or Lithium) is used to the memory backup in the KU type. EXTERIOR COMPONENTS Mark Symbol & Description Part No. Remarks Mark Symbol & Description TX-930/KU TX-930L/HE TX-930L/HB Remarks Top cover Front base assembly Front cover ANE-393 ANR-

20、515 ANM-209 ANE-386 ANR-516 ANM-210 ANE-386 ANR-516 ANM-210 1 1 PACKING AND FURNISHE6 PARTS Mark Symbol & Description Part No. Remarks Mark Symbol & Description TX-930/KU TX-930L/HE TX-930L/HB Remarks Packing case Operating instructions (English) (English/German/French/ltalian) Station card set AHE-

21、052 ARB-493 AHE-040 ARE-038 AAN-042 AHE-040 ARB-495 Packing case Operating instructions (English) (English/German/French/ltalian) Station card set AAN-047 AHE-040 ARE-038 AAN-042 AAN-042 RadioFans.CN 收音机爱 好者资料库 T X - S 3 a L / H E , H B r i 5. ADJUSTMENT AM Long Wave Band Section Connect the fumishe

22、d AM loop antenna between terminals AM ANTENNA and GND. Connect the AM signa! generator (AM SG) to the AM ANTENNA terminal through a lOk resii Set the TX-930L to the AM-LW band (MANUAL tuning mode). (*4) Tune the AM SG to the TX-930L. Step AM SG (400Hz, 30% modulation) TX-930L Frequency display Adju

23、stment Point Adjustment procedure Step Frequency Level TX-930L Frequency display Adjustment Point Adjustment procedure 1. No signal 155kHz T301 2.2V DC between terminal no. and no.4 (ground). 2. No signal 281kHz TC301 20V DC between terminal no. 3 and no. 4 (ground). 3. Repeat steps 1 and 2 until bo

24、th specifications are correct. 4, 164kHz (4) 40dB 164kHz T300 Adjust until DC voltage between terminal no. 11 and ground is maximum. 5. 254kHz (4) 40dB 254kHz TC300 Adjust until DC voltage between terminal no. 11 and ground is maximum. 6. Repeat steps 4 and 5 until maximum sensitivity Is attained. i

25、m Ji VR1 I T301 e O I J TIJU T3 TC301 J300 mfM 30 TC4U T 4 ( S TC5 no. 10 no. 11 no. 8 (ground) p no. 4 (ground) no. 6 VR2- no. 7 YB) 9 y TC300 no. 3 L2 R137 T2 T2 (DIST) (CENTER) -no. 9 - T l 1 TC3 L3 -6 Fig. 5-1 Adjustment points and measuring points of TX-930L 1 2 5. RGLAGE Sectin AM a ondes long

26、ues Raccorder Ie cadre dantenne AM foumi entre les bomes AM ANTENNA et GND (masse). Raccorder Ie gnrateur de signal AM (AM SG) a la bome dantenne AM (AM ANTENNA) au moyen dune rsistance de lOkO. Rgler Ie TX-930L sur la gamme AM/GO (AM/LW) et sur Ie mode daccord manuel (MANUAL). (*4) Accorder Ie AjM

27、SG sur Ie TX-930L. Etape FM SG (400Hz, modulation 30%) Aff ichage de frquence du TX-930L Point de rglage Procdure de rglage Etape Frquence Niveau Aff ichage de frquence du TX-930L Point de rglage Procdure de rglage 1. Pas de signal 155kHz T301 2.2V cc. entre les bornes n 3 et 0 4 (masse). 2. Pas de

28、signal 281kHz TC301 20V cc. entre les bornes nO 3 et n 4 (masse). 3. Rptor les tapes 1 et 2 jusqu ce que les deux caractristiques soient correctes. 4. 164kHz (*4) 40dB 164kHz T300 Rgler jusqu ce que la tension continue entre la borne n 11 et la masse soit maximum. 5. 254kHz (M) 40dB 254kHz TC300 Rgl

29、er jusqu ce que la tension continue entre la borne n 11 et la masse soit maximum. 6. Rpter les tapes 4 et 5 jusqu lobtention de la sensibilit maximum. ma mm Fig. 5-1 Points de rglage et points de mesurage de TX-930L 1 3 5. AJUSTE Seccin de AM de la banda de onda larga Conectar la antena de cuadro de

30、 AM suministrada entre los terminales AM ANTENNA y GND. Conectar el generador de seiiales de AM (AM SG) al terminal AM ANTENNA a travs de un resistor de lOK ohmios. Extablecer el TX-930L en la banda de AM/LW y en el modo de sintonizacion MANUAL. (*4) Sintonizar el AM SG co el TX-930L. Paso FM SG (40

31、0Hz, 30% de modulacin) Frecuencf metro del TX-930L Punto de ajuste Procedimientos de ajuste Paso Frecuencia | Nivel Frecuencf metro del TX-930L Punto de ajuste Procedimientos de ajuste 1. Sin seial 155kHz T301 2.2V CC entre los terminales no. 3 y no. 4 (masa). 2. Sin seflal 281kHz TC301 20V CC entre

32、 los terminales no. 3 y no. 4 (masa). 3. Repetir los pasos 1 y 2 hasta que ambas especificaciones sean correctas. 4. 164kH2 (*4) 40dB 164kHz T300 Ajustar hasta que la tensin de CC entre el terminal no. 11 y masa sea la maxima. 5. 254kHz (*4) 40dB 254kHz TC300 Ajustar hasta que la tensin de CC entre

33、el terminal no. 11 y masa sea la maxima. 6. Repetir los pasos 4 y 5 hasta lograrse la maxima sensibilidad. U I im VR1 l u T301 TT-cr TC301 T300 1 T4- T C 5 TC1 L2 V, TC2 V R 2 - no. 11 no. 8(Tierra) T) p no. 4 (Tierra) J no. 10 rf-no.6 f TC300 no. 7 - no. 3 no. 7 j 2 T2 IST) (CENTER) T l -(SC -no. 9 TC3 L3 Fig. 5-1 Puntos de ajuste y puntos de medida de TX-930L