Sony MB-806A Service Manual
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Sony MB-806A Service Manual

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MB-806A (CE)
Sony Corporation
WRU-806A (CE, AU) E
Broadcasting & Professional Systems Company
9-976-880-01
Printed in Japan
1999. 6 11
©1999
TUNER BASE UNIT
MB-806A
CE Model
UHF SYNTHESIZED TUNER UNIT
WRU-806A
CE Model
AU Model
SERVICE MANUAL
1st Edition

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  • Page 1 TUNER BASE UNIT MB-806A CE Model UHF SYNTHESIZED TUNER UNIT WRU-806A CE Model AU Model SERVICE MANUAL 1st Edition MB-806A (CE) Printed in Japan Sony Corporation WRU-806A (CE, AU) E 1999. 6 11 Broadcasting & Professional Systems Company 9-976-880-01 ©1999...
  • Page 2 électrique, d’incendie ou de blessure n’effectuer que les réparations indiquées dans le mode d’emploi à moins d’être qualifié pour en effectuer d’autres. Pour toute réparation faire appel à une personne compétente uniquement. MB-806A (CE) WRU-806A (CE, AU)

  • Page 3: Table Of Contents

    5-3. Electrical Parts List ..................5-4 5-3-1. MB-806A ................... 5-4 5-3-2. WRU-806A ................5-11 5-4. Accessories Supplied ................5-17 6. Block Diagrams MB-806A Overall Block Diagram .............. 6-1 WRU-806A Tuner Unit Block Diagram ............. 6-2 MB-806A (CE) WRU-806A (CE, AU)
  • Page 4 DP-305 Board ................... 7-4 RF-92 Board ..................... 7-4 8. Schematic Diagrams 8-1. MB-806A CN-1907 Board ..................8-4 CN-1908 Board ..................8-3 MB-871 Board ..................8-1 8-2. WRU-806A DP-305 Board ................... 8-5 RF-92 Board ..................... 8-6 MB-806A (CE) WRU-806A (CE, AU)
  • Page 5 3-867-235-21(1) Tuner Base Unit Operating Instructions Bedienungsanleitung Wireless Channel Lists/Übertragungskanallisten MB-806A © 1999 by Sony Corporation [CE] [AU]...
  • Page 6 English Table of Contents Precautions ............1 Channel Setting ..........8 WARNING Overview ............2 Automatic Search and Setting of Available To prevent fire or shock hazard, do not Channels ............9 Features ............. 2 expose the unit to rain or moisture. Operation ............
  • Page 7 UHF wireless This tuner is designed to enable simultaneous use of microphone system without causing intermodulation. The MB-806A can be mounted in an EIA standard 19- multiple channels when channels are selected It is therefore recommended that you usually use a Preprogrammed wireless channel plan for inch rack (1 U size).
  • Page 8 Location of Parts and Controls Front Panel Rear Panel 1 POWER switch 2 GP button 1 ANTENNA A, B IN/DC 9V OUT connectors 4 + button 2 ANTENNA A, B ATT switches 3 AC IN connector BATT – POWER OUTPUT LEVEL IN(DC 9V OUT) LINE...
  • Page 9 Always hold the WRU-806A by the side. • Do not touch the connectors on the rear panel of the ANTENNA B IN ANTENNA A IN Lever WRU-806A. MB-806A • Be careful of static electricity. Bottom Panel MIX OUTPUT TUNER OUTPUT AC IN...
  • Page 10 Power on the wireless microphones or transmitters always set the tuners to different channels within the When you use the MB-806A Base Unit in a multi- after adjusting them to the channels of each tuner same group (other than group 00).
  • Page 11 Operation Muting Functions This tuner has the following three muting functions, which work in combination. (1) Muting by RF input level As sufficient S/N for the audio output may not be obtained if no RF signal is received or the RF input level is low, the audio output can be muted when the Connect the output signals to a mixer or an RF input level falls below the muting level.
  • Page 12 862.000 MHz Operating temperature being received, the audio signal tuner’s tone squelch circuit. Contact your nearest Sony dealer. AU66 model: 792.250 to 0°C to 40°C output is muted. If you are using a WRT-810A (AU66) wireless microphone, a 805.500 MHz...
  • Page 13 Dieses Produkt wurde im Hinblick auf hervorragenden free operation in multi-channel systems. To maintain interferenzfreien Betrieb in Mehrkanalsystemen this, Sony recommends that one of the original Sony entwickelt. Deshalb empfehlen wir, eine der Sony- groups, number 01, 02, 03, 04, 13, L1, L2, M1 or M2 Kanalgruppen.
  • Page 14 User group No. of simultaneously CE62 model/Modell CE62 Modell Gruppe-Anzeige Frequenz-raster Benutzergruppe selectable channels Anzahl der Simultankanäle Sony Original Channel Groups/Sony Kanalgruppen CE62 125 kHz Sony original channel *(111) groups Group 13/Gruppe 13 GP/CH indication (example)/GP/CH-Anzeige Group 01/Gruppe 01 Sony Kanalgruppen 12-channel group/12-Kanal-Gruppe (Beispiel): 00.
  • Page 15 http://getMANUAL.com Wireless Channel Lists/Übertragungskanallisten German User Group-3/Deutschen Benutzergruppe-3 German User Group-4/ German User Groups/Deutschen Benutzergruppen Deutschen GP/CH indication (example)/GP/CH-Anzeige (Beispiel): 62A 04 GP/CH indication (example)/GP/CH-Anzeige (Beispiel): 62 080 Benutzergruppe-4 Group 62A/Gruppe 62A Group 63A/Gruppe 63A Group 62: 241-channel group (single-channel operation)/Gruppe 62: 241-Kanal-Gruppe (Einkanalbetrieb) GP/CH indication (example)/GP/ 7-channel group 10-channel group/10-Kanal-Gruppe...
  • Page 16 Wireless Channel Lists/Übertragungskanallisten GP/CH indication (example)/GP/CH-Anzeige (Beispiel): 63 001 WL Channel Frequency WL Channel Frequency WL-Kanal Frequenz (MHz) WL-Kanal Frequenz (MHz) 62-240 804.000 62-280 805.000 Group 63: 320-channel group (single-channel operation)/Gruppe 63: 320-Kanal-Gruppe (Einkanalbetrieb) 62-241 804.025 62-281 805.025 Frequency range: 806.025 to 814.000 MHz/Frequenzbereich: 806,025 bis 814,000 MHz 62-242 804.050 62-282...
  • Page 17 Frequency WL Channel Frequency CE69 Model/Modell CE69 WL-Kanal Frequenz WL-Kanal Frequenz WL-Kanal Frequenz WL-Kanal Frequenz (MHz) (MHz) (MHz) (MHz) Sony Original Channel Groups Group 01/Gruppe 01 63-161 810.025 63-201 811.025 63-241 812.025 63-281 813.025 63-162 810.050 63-202 811.050 63-242 812.050 63-282 813.050...
  • Page 18 Use when TV channel 67 is on the air. WL Channel Frequency (MHz) WL Channel Frequency (MHz) Group 11: 12-channel group Sony Original Channel Groups 66-02 792.375 66-31 796.000 Use when TV channels both 66 and 67 are available. 66-04 792.625...
  • Page 19 Notes System Configuration • Be sure to power off the MB-806A before installing this unit. • The buttons and display of this unit may be damaged if they are The unit can be used with a UHF Synthesized Wireless Microphone or gripped too strongly.
  • Page 20 Specifications Tuner Reception type Circuit system Dual conversion superheterodyne Reception frequencies CE62 model: 800.000 to 814.000 MHz CE69 model: 854.125 to 862.000 MHz Local oscillators Crystal controlled PLL synthesizer 60 dB or more (at ±250 kHz detuned) Selectivity Spurious rejection ratio 70 dB or more Image rejection ratio 60 dB or more...
  • Page 21 Notes Phase Locked Loop (PLL) synthesized system • Be sure to power off the MB-806A before installing this unit. The unit has a refined phase locked loop (PLL) synthesizer circuit and • The buttons and display of this unit may be damaged if they are covers two UHF TV channels.

  • Page 23: Service Overview

    (Tuner Unit) 2-2. Precaution in Wiring Harness . The harness inside the MB-806A are laid out so that they are not positioned close to the heat-producing parts or high voltage present parts by routing the harnesses properly or using purse locks.

  • Page 24: Error Messages

    2-3. Error Messages The following error messages will appear if an error is detected by the built-in self diagnostics function of the MB-806A with WRU-806A. Error Massage Comments Countermeasure Err 01 Error the backup memory Because data is initialized, perform the group setting, channel setting again.

  • Page 25: Service Information For Wru-806A

    . If there is a fault, WRU-806A (repair unit) is defective. Check the WRU-806A then fix a faulty section, and perform “3. Electrical Alignment”. . If there is no fault found on the MB-806A, repairing WRU-806A is no longer defective. Thus the repairing MB- 806A, other than WRU-806A, is defective.

  • Page 27: Electrlcal Alignment

    BNC-P connector; 1 (Part No. 1-560-257-11) Ceramic capacitor 0.001 uF; 1 (Part No. 1-161-456-00) Ceramic capacitor BNC-J connector 0.001 uF 50 V (1-161-456-00) BNC-P connector (1-562-261-21) (1-560-257-11) Plated wire (0.6 to 0.8 ø) 2 mm Solder MB-806A (CE) WRU-806A (CE, AU)

  • Page 28: Adjustments

    (SSG) so that the = _113 dBm 0 dBuV 50 Z meter reads 50 mV. (EMF = Electromotive force) 50 Z 50 mV 0 dBm = 1 mW at 50 Z loaded MB-806A (CE) WRU-806A (CE, AU)
  • Page 29 The adjustment procedures describe that the WRU-806A (to be adjusted) is installed into the Tuner [1]slot on the 2. Remove the tuner unit (WRU-806A) to be adjusted from the MB-806A. Refer to “ Section 1. Operating MB-806A. Instructions ” for removal.
  • Page 30 (A C3 L) LCD: (12)Set the FREQUENCY (carrier frequency) of the signal B C3 L generator as follow. FREQUENCY(carrier frequency): (B C3 L) CE62 model; 811.000 MHz CE69 model; 861.000 MHz AU66 model; 804.000 MHz MB-806A (CE) WRU-806A (CE, AU)
  • Page 31 (24)Indication on the LCD (Tuner [1]) appears as follows: 2. Remove the tuner unit (WRU-806A) to be adjusted LCD: from the MB-806A. Refer to “ Section 1. Operating Instructions ” for removal. . CE62 model 3. Remove the upper side case lid of the tuner unit...
  • Page 32 “Step 2. Tuner [1] (Tuner unit 1) adjustment” on the CE69 model; Group 00, 6933 channel (858.125 MHz) AU66 model; Group00, 6701 channel (799.250 MHz) respective tuner units that are installed in the MB-806A. Muting: OFF When performing the above described adjustments change Rear panel the following details as shown below of the “Step 2.
  • Page 33 (Lower side) (Upper side) RV205 Oscilloscope 5. Attach the lower side case lid to the tuner unit, and insert the tuner unit to the slot of the MB-806A. DC range setting Tuner unit (Upper side) Connection Same as “ 2. Output level adjustment ”.

  • Page 34: Overall Characteristics Check

    (6) of “ Step 1: Tuner [1] (Tuner unit 1) adjustment” on 7. Muting level/RF indicator check ↓ the respective tuner unit that are installed in the MB-806A. When performing the above described adjustment change 8. BATT indicator check ↓...
  • Page 35 806A, perform the adjustments from procedures (1) to (11) of “Step 1. Tuner [1] (Tuner unit 1) checking” on the (1) Set the MB-806A as follows; respective tuner units that are installed in the MB-806A. Front panel (Tuner [1]) When performing the above described checking change the FREQUENCY(carrier frequency): following details as shown below, of the “Step 1.
  • Page 36 (No modulation). (7) Check that output level of the TUNER OUTPUT 1 is respective tuner units that are installed in the MB-806A. _62 dB or less (S/N is 62 dB or more with A-weighted When performing the above described checking change the filter) as compared with the level of procedure (4) following details as shown below, of the “Step 1.
  • Page 37 The checking procedures describe that the WRU-806A (to be When performing the above described checking change the adjusted) is installed into the Tuner [1] slot on the MB-806A. following details as shown below, of the “Step 1. Tuner [1] (Tuner unit 1) checking”.
  • Page 38 “Step 1. Tuner [1] (Tuner unit 1) checking” on the AU66 model; 799.250 MHz RF OUTPUT (Output level): 60 dBuV respective tuner units that are installed in the MB-806A. (= _53 dBm) When performing the above described checking change the MODULATION (Modulation frequency): 1 kHz following details as shown below, of the “Step 1.
  • Page 39 806A, perform the adjustments from procedures (1) to (6) of “Step 1. Tuner [1] (Tuner unit 1) checking” on the LCD: respective tuner units that are installed in the MB-806A. When performing the above described checking change the ± 5 dB...
  • Page 40 806A, perform the adjustments from procedures (1) to (4) of “Step 1. Tuner [1] (Tuner unit 1) checking” on the respective tuner units that are installed in the MB-806A. The checking procedures describe that the WRU-806A(to When performing the above described checking change the be adjusted) is installed into the Tuner [1] slot on the MB- following details as shown below, of the “Step 1.
  • Page 41 (4) Check that RF Indicator LED lights (green) and “NO TONE” message appears on LCD (Tuner [1]). respective tuner units that are installed in the MB-806A. (5) Change the RF OUTPUT (output level) of the signal When performing the above described checking change the generator as shown below.
  • Page 42 “Step 1. Tuner [1] (Tuner unit 1) checking” on the (= _53 dBm) MODULATION (Modulation frequency): respective tuner units that are installed in the MB-806A. 32.782 kHz When performing the above described checking change the (32.782 kHz must be set following details as shown below, of the “Step 1.
  • Page 43 806A, perform the adjustments from procedures (1) to (5) of “Step 1. Tuner [1] (Tuner unit 1) checking” on the respective tuner units that are installed in the MB-806A. The checking procedures describe that the WRU-806A (to When performing the above described checking change the be adjusted) is installed into the Tuner [1] slot on the MB- following details as shown below, of the “Step 1.
  • Page 45 UMX2NTL ......4-2 TA31161FN(EL) ....4-4 UN9213 ......4-2 TA78L05F-TE12L .... 4-3 TA8122AF ......4-4 TA8122AF(J.TP2) .... 4-4 TC4066BF(EL,N) ..... 4-5 TC4S69F ......4-5 TC4S69F-TE85L ....4-5 TC74HC4053AFT(EL) ..4-5 UPC4574G2 ..... 4-5 UPC4574G2-T1 ....4-5 MB-806A (CE) WRU-806A (CE, AU)
  • Page 46 2SC4726LN-TLPQ 2SC4738-YGR-TE85L 2SC4915-O-TE85L 2SD1048-X7 2SD1048X6-TB 2SD2216-Q (TOSHIBA) 2SD596-T1DV4 2SD596DV345 —TOP VIEW— 1SS362-TE85L 1SV234-TB 3SK239AXRTL WIDE EC10QS-04 EC10QS-04-TE12L (WIDE) 3SK254-T2 3SK255-T2 —TOP VIEW— HZU3.0B1TRF HZU5.6B2TRF HZU6.8B2TRF —TOP VIEW— —TOP VIEW— DTC323TK (R1=2.2 k) RB411D DTC323TKT146 RB411D-T146 MB-806A (CE) WRU-806A (CE, AU)
  • Page 47 14-BIT LATCH (REFERENCIAL DIVISION) P3/fr2 SELECTOR P1/fp1 P2/fp2 POWER SAV- 17-BIT LATCH (COMPARISONAL DIVISION) MAIN COUNTER PHASE CHARGE fin2 PLL2 P1, 2, 3 OLA, B 10-BIT LATCH CR1, 2 LATCH SELECTOR Data SHIFT REGISTER (21-BIT) Clock MB-806A (CE) WRU-806A (CE, AU)
  • Page 48 C OB C OB C OB C OB C OB C OB GAIN CELL GAIN CELL LATCH GAIN CELL SOUT C OB C OB C OB C OB C OB C OB C OB C OB MB-806A (CE) WRU-806A (CE, AU)
  • Page 49 0 : LOW LEVEL 1 : HIGH LEVEL TC74HC4053AFT(EL) (TOSHIBA) C-MOS TRIPLE 2-CHANNEL ANALOG MULTIPLEXER/DEMULTIPLEXER —TOP VIEW— OPEN OPEN OPEN CONTROL INPUTS SELECT ON CHANNEL : LOW LEVEL : HIGH LEVEL OPEN : DON’T CARE MB-806A (CE) WRU-806A (CE, AU)
  • Page 50 Judgment for model type IF-DO Serial I/O control (L: WRR-802A, H: MB-806A) TEST Test mode (L: ON) ADDRESS Judgment for slot number (MB-806A) MASTER/SLAVE MASTER/SLAVE communication DIST1 Selection 1 for destination (model type) DIST2 Selection 2 for destination (model type)

  • Page 51: Spare Parts

    Therefore, specified parts should be used in the case of replacement. 2. Standardization of Parts Some repair parts supplied by Sony differ from those used for the unit. These are because of parts common- ality and improvement. Parts list has the present standardized repair parts.

  • Page 52: Exploded Views

    2-545-216-01 o INSULATING SHEET (B) 2-545-338-01 o SPRING (F) 2-545-387-11 s +BTT M3 (S TITE) 2-545-413-01 o SIELD (R) 2-545-750-01 o LID (BLIND) 4-942-568-41 s EMBLEM (N0.5), SONY 9-911-844-99 s SHEET, SPONGE Accessory 1-501-952-11 s ANTENNA Screws/Washers 7-682-246-09 s SCREW +K 3X5 (EP-FE/ZNBK/CM2)
  • Page 53 B 3x5 B 3x5 B 3x5 B 3x3 B 3x8 BVTT 3x6 BVTT 3x6 K 3x5 K 3x5 BVTT 3x6 K 3x5 K 3x5 BVTT 3x6 K 3x5 BVTT K 3x5 BVTT 2x4 WRU-806A (Tuner unit) MB-806A (CE) WRU-806A (CE, AU)

  • Page 54: Electrical Parts List

    5-3. Electrical Parts List 5-3-1. MB-806A --------------------- ------------------------- CANON (CN-1908) BOARD CONNECTOR (CN-1907) BOARD --------------------- ------------------------- Ref. No. Ref. No. or Q'ty Part No. SP Description or Q'ty Part No. SP Description 1-674-362-11 o PRINTED WIRING BOARD, CN-1908 A-8323-049-A o CONNECTOR MOUNTED PC BOARD (A)
  • Page 55 1-163-038-91 s CAPACITOR, CERAMIC 0.1MF/25V C1512 1-164-156-11 s CAPACITOR,CERAMIC 0.1MF/25V F C1218 1-163-038-91 s CAPACITOR, CERAMIC 0.1MF/25V C1513 1-163-038-91 s CAPACITOR, CERAMIC 0.1MF/25V C1219 1-163-038-91 s CAPACITOR, CERAMIC 0.1MF/25V C1514 1-163-038-91 s CAPACITOR, CERAMIC 0.1MF/25V MB-806A (CE) WRU-806A (CE, AU)
  • Page 56 1-162-907-11 s CAPACITOR,CERAMIC 2PF/50V(CK) C1818 1-162-964-11 s CAPACITOR,CERAMIC 1000PF/50V B C1956 1-162-907-11 s CAPACITOR,CERAMIC 2PF/50V(CK) C1820 1-162-964-11 s CAPACITOR,CERAMIC 1000PF/50V B C1957 1-162-907-11 s CAPACITOR,CERAMIC 2PF/50V(CK) C1822 1-162-964-11 s CAPACITOR,CERAMIC 1000PF/50V B C1958 1-162-907-11 s CAPACITOR,CERAMIC 2PF/50V(CK) MB-806A (CE) WRU-806A (CE, AU)
  • Page 57 8-759-700-94 s IC NJM5532M L1961 1-414-461-31 s INDUCTOR, CHIP (K) 6.8NH IC1304 8-759-524-11 s IC TC4066BF(EL,N) L1962 1-414-461-31 s INDUCTOR, CHIP (K) 6.8NH IC1305 8-759-524-11 s IC TC4066BF(EL,N) L1963 1-414-461-31 s INDUCTOR, CHIP (K) 6.8NH MB-806A (CE) WRU-806A (CE, AU)
  • Page 58 1-218-718-11 s RESISTOR CHIP 12K 1/16W (1608) R1213 1-218-709-11 s RESISTOR,METAL 5.1K 1/16W R1009 1-218-718-11 s RESISTOR CHIP 12K 1/16W (1608) R1214 1-208-799-11 s RESISTOR,CHIP 5.1K 1/10W(2125) R1010 1-208-808-11 s RESISTOR,CHIP 12K 1/10W (2012) R1215 1-216-809-11 s RESISTOR,CHIP 100 1/16W 1608 MB-806A (CE) WRU-806A (CE, AU)
  • Page 59 1-216-835-11 s RESISTOR,CHIP 15K 1/16W R1627 1-216-833-11 s RESISTOR,CHIP 10K 1/16W 1608 R1423 1-216-826-11 s RESISTOR,CHIP 2.7K 1/16(1608) R1629 1-218-285-11 s RESISTOR,CHIP 75 1/16W (1608) R1429 1-218-285-11 s RESISTOR,CHIP 75 1/16W (1608) R1631 1-216-864-11 s RESISTOR,CHIP 0 1/16W (1608) MB-806A (CE) WRU-806A (CE, AU)
  • Page 60 1-216-797-11 s RESISTOR,CHIP 10 1/16W 1608 R1867 1-216-845-11 s RESISTOR,CHIP 100K 1/16W(1608) R1868 1-216-822-11 s RESISTOR, CHIP 1.2K 1/16W 1608 R1871 1-216-812-11 s RESISTOR,CHIP 180 1/16 1608 R1872 1-216-797-11 s RESISTOR,CHIP 10 1/16W 1608 5-10 MB-806A (CE) WRU-806A (CE, AU)

  • Page 61: Wru-806A

    R815 1-216-817-11 s RESISTOR,CHIP 470 1/16W 1608 R816 1-216-817-11 s RESISTOR,CHIP 470 1/16W 1608 S801 1-771-105-11 s SWITCH, TACTILE S802 1-771-105-11 s SWITCH, TACTILE S803 1-771-105-11 s SWITCH, TACTILE S804 1-771-105-11 s SWITCH, TACTILE 5-11 MB-806A (CE) WRU-806A (CE, AU)
  • Page 62 1-162-970-11 s CAPACITOR CERAMIC 0.01MF/25V B C216 1-117-919-11 s CAPACITOR, CHIP TANTALUM10MF C313 1-162-908-11 s CAPACITOR,CERAMIC 3PF/50V 1608 C217 1-117-919-11 s CAPACITOR, CHIP TANTALUM10MF C314 1-162-970-11 s CAPACITOR CERAMIC 0.01MF/25V B C315 1-162-970-11 s CAPACITOR CERAMIC 0.01MF/25V B 5-12 MB-806A (CE) WRU-806A (CE, AU)
  • Page 63 1-107-826-11 s CAPACITOR,CHIP CERAMIC 0.1MF D202 8-719-988-61 s DIODE 1SS355TE-17 C663 1-107-826-11 s CAPACITOR,CHIP CERAMIC 0.1MF D203 8-719-988-61 s DIODE 1SS355TE-17 C664 1-107-826-11 s CAPACITOR,CHIP CERAMIC 0.1MF D204 8-719-988-61 s DIODE 1SS355TE-17 D205 8-719-064-08 s DIODE HZU6.8B2TRF 5-13 MB-806A (CE) WRU-806A (CE, AU)
  • Page 64 1-414-461-31 s INDUCTOR, CHIP (K) 6.8NH L655 1-412-979-21 s INDUCTOR (SMALL TYPE) (FOR CE69 MODEL) L701 1-412-955-11 s INDUCTOR 22UH (2520) 1-414-462-31 s INDUCTOR, CHIP (K) 8.2NH (FOR AU66,CE62 MODEL) Q101 8-729-035-13 s TRANSISTOR 3SK239AXRTL 5-14 MB-806A (CE) WRU-806A (CE, AU)
  • Page 65 1-216-833-11 s RESISTOR,CHIP 10K 1/16W 1608 R214 1-216-845-11 s RESISTOR,CHIP 100K 1/16W(1608) R277 1-216-845-11 s RESISTOR,CHIP 100K 1/16W(1608) R278 1-216-821-11 s RESISTOR,CHIP 1.0K 1/16W 1608 R215 1-216-845-11 s RESISTOR,CHIP 100K 1/16W(1608) R279 1-216-843-11 s RESISTOR,CHIP 68K 1/16W (1608) 5-15 MB-806A (CE) WRU-806A (CE, AU)
  • Page 66 1-216-813-11 s RESISTOR, CHIP 220 1/16W 1608 T102 1-406-782-21 s TRANSFORMER, IF R450 1-216-797-11 s RESISTOR,CHIP 10 1/16W 1608 T103 1-411-494-11 s DETECTOR COIL (MPX) R480 1-216-834-11 s RESISTOR,CHIP 12K 1/16W 1608 T401 1-406-784-21 s TRANSFORMER, IF 5-16 MB-806A (CE) WRU-806A (CE, AU)

  • Page 67: Accessories Supplied

    2-545-811-01 o LABEL, 5 COLOR (FOR CE62,CE69 MODEL) Ref. No. 3-867-236-21 s MANUAL, INSTRUCTION or Q'ty Part No. SP Description (FOR CE62,CE69 MODEL) 3-867-236-31 s MANUAL, INSTRUCTION 1-790-794-11 s WIRE, FLAT TYPE (35 CORE) (FOR AU66 MODEL) 5-17 MB-806A (CE) WRU-806A (CE, AU)
  • Page 69 MB-871 board MB-806A Tuner Base Unit CN-1907 board T1801 J1812 J1906 S1803 J1702 Q1801 T1803 MB-806A is composed of power supply block, audio block, J1811 J1905 ANTENNA B IN T1805 J1810 J1904 DISTRI- CN116 and following boards. / DC 9V OUT...
  • Page 70 Tuner Unit Block Diagram The audio output signal from the diversity switching circuit WRU-806A is passed through the muting circuit, de-emphasis circuit, low pass filter circuit and expander circuit then amplified by the AF amplifier. MB-806A (CE) WRU-806A (CE, AU)
  • Page 71 CN-1907, CN-1908 CN-1907, CN-1908 Section 7 Board Layouts 7-1. MB-806A CN-1907 -A SIDE- 1-674-363-11 CN-1907 -B SIDE- 1-674-363-11 CN-1908 CN-1908 -A SIDE- -B SIDE- 1-674-362-11 1-674-362-11 MB-806A (CE) WRU-806A (CE, AU)
  • Page 72 MB-871 MB-871 MB-871 -A SIDE- 1-674-361-11 MB-806A (CE) WRU-806A (CE, AU)
  • Page 73 MB-871 MB-871 MB-871 -B SIDE- 1-674-361-11 MB-806A (CE) WRU-806A (CE, AU)
  • Page 74 DP-305, RF-92 DP-305, RF-92 7-2. WRU-806A FOR BOARD NO. SUFFIX:-12 RF-92 -A SIDE- 1-674-364-11 DP-305 -A SIDE- 1-674-365-11 FOR BOARD NO. SUFFIX:-12 DP-305 RF-92 -B SIDE- -B SIDE- 1-674-365-11 1-674-364-11 MB-806A (CE) WRU-806A (CE, AU)
  • Page 75 MB-871 (1/2) MB-871 (1/2) Section 8 Schematic Diagrams CN2003 AFOUT(1)-(6) AFOUT(1) AFOUT(1) 8-1. MB-806A AFOUT(2) TO/FROM AFOUT(2) C1703 TP1004 9.0V CN1012, AFOUT(3) 4700µ AFOUT(3) CN-1907 AFGND BOARD D1701 AFIND/ADDRESS(1) EC10QS-04 NM:No mount AFIND/ADDRESS(2) IC1701 AFIND/ADDRESS(3) IC2001 CN2004 C1709 S-81250PG...
  • Page 76 • DC Voltage are taken with digital multimeter (input impedance 1 MΩ or more) under no-signal conditions. • AF level value of AF out (2), (3), (4), (5), (6) blocks are same as AF out (1) block. MB-806A (CE) WRU-806A (CE, AU)
  • Page 77 C1887 (TPL3) (TPL3) ATT SW A COM R1880 C1888 R1879 220k 220k BOARD NO. 1-674-362-11 R1803 CN-1908 BOARD C1621 S1802 R1804 C1814 100p S1801 ATT SW B COM IC1605 TC4066BF(E R1851 S1803 R1852 MB-806A (CE) C1871 100p WRU-806A (CE, AU)
  • Page 78 AF OUT (6) AF_OUT AF GND 2 AF_GND AFIND/ADDRESS(6) TUNER UNIT AF_IND/ADDRESS +B 2 WRR-806/806A C165 C163 0.01 R162 RSSI/MASTER RF_GND C164 0.01 ANT_A RF GND A6 D162 1SV234-TB RF PKG6(A) CN-1907 BOARD NO. 1-674-363-11 MB-806A (CE) WRU-806A (CE, AU)
  • Page 79 C808 AF_LED 0.01 0.01 0.01 0.01 C803 C805 C807 RF_LED 0.01 0.01 0.01 COM0 S801 S802 S803 S804 COM1 C801 COM2 0.01 COM3 TO/FROM CN702,RF-92 BOARD COM1 COM2 ND801 COM0 COM3 DP-305 BOARD NO. 1-674-365-11 MB-806A (CE) WRU-806A (CE, AU)
  • Page 80 8.2nH 6.8nH 8.2nH 8.2nH When C416 is removed. L401,L402 Receiving frequency +150.75MHz L103,L403 10nH 10nH 10nH 10nH 8.2nH 10nH 10nH L104,L404 6.8nH 6.8nH 6.8nH 6.8nH 5.6nH 6.8nH 6.8nH NM:NO MOUNT RF-92 (1/2) BOARD NO. 1-674-364-11 MB-806A (CE) WRU-806A (CE, AU)
  • Page 81 CXP83416-050Q CXP83416-050Q CXP83416-051Q CXP83416-051Q CXP83416-051Q CXP83416-050Q SR751 0Ω SR752 0Ω SR753 0Ω 0Ω SR754-757 SR758 0Ω 0Ω 0Ω RF-92 (2/2) SR759 0Ω 0Ω 0Ω 0Ω SR760 0Ω SR761 0Ω 0Ω BOARD NO. 1-674-364-11 NM:NO MOUNT MB-806A (CE) WRU-806A (CE, AU)

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