Sony WRR-800A Service Manual
  1. Manuals
  2. Brands
  3. Sony Manuals
  4. Tuner
  5. WRR-800A
  6. Service manual

Sony WRR-800A Service Manual

Uhf synthesized diversity tuner
Hide thumbs Also See for WRR-800A:
Table of Contents

Advertisement

Quick Links

Download this manual
UHF SYNTHESIZED DIVERSITY TUNER
WRR-800A
SERVICE MANUAL
AU Model

Advertisement

Table of Contents
loading

Related Manuals for Sony WRR-800A

Summary of Contents for Sony WRR-800A

  • Page 1 UHF SYNTHESIZED DIVERSITY TUNER WRR-800A SERVICE MANUAL AU Model...
  • Page 2 ! WARNING This manual is intended for qualified service personnel only. To reduce the risk of electric shock, fire or injury, do not perform any servicing other than that contained in the operating instructions unless you are qualified to do so.

  • Page 3: Table Of Contents

    6-2. EXPLODED VIEW AND PARTS LIST ............6-2 6-3. ELECTRICAL PARTS LIST ................. 6-4 6-4. SUPPLIED ACCESSORIES ................6-6 7. SCHEMATIC DIAGRAMS AND BOARD LAYOUTS MB-786 Board ....................7-1 CN-1598 Board ....................7-1 VR-245 Board ....................7-1 RE-157 Board ....................7-1 WRR-800A...

  • Page 5: Precautions

    UHF Synthesized Diversity Tuner Operating Instructions WRR-800A [AU] © 1997 by Sony Corporation Precautions • Switching lights on or off may produce electrical WARNING interference over the entire frequency range. Position the unit and the wireless microphones so that interference is To prevent fire or shock hazard, do not expose the unit minimized.
  • Page 6 System Configuration A liquid-crystal display provides a variety of information, including the levels of the reception channels, RF The unit can be used with a Sony UHF synthesized wireless information and transmitter battery condition. microphone or UHF synthesized transmitter among the models listed in the table below.

  • Page 7: Wirelss Channels Selectable

    805.000 66-21 794.750 66-48 798.125 66-22 794.875 67-22 801.875 67-48 805.125 66-49 798.250 67-23 802.000 67-49 805.250 66-23 795.000 66-50 798.375 67-24 802.125 67-50 805.375 66-24 795.125 66-51 798.500 66-25 795.250 67-25 802.250 67-51 805.500 67-26 802.375 66-26 795.375 WRR-800A(AU)
  • Page 8 WL Channel Frequency (MHz) 66-02 792.375 66-32 796.125 67-06 799.875 66-04 792.625 66-34 796.375 67-08 800.125 66-10 793.375 66-40 797.125 67-12 800.625 66-15 794.000 66-45 797.750 67-22 801.875 67-25 802.250 66-19 794.500 66-49 798.250 66-22 794.875 67-33 803.250 67-40 804.125 67-45 804.750 WRR-800A(AU)

  • Page 9: Location Of Parts And Controls

    3 AF indicator 4 AF indication 6 GP/CH (group/channel) indication Shows the reception channel group and respective channel BATT 5 BATT indication number. BATT Pressing the GP button changes this indication to the frequency indication. 6 GP/CH indication 7 RF indications WRR-800A(AU)

  • Page 10: Rear Panel

    Set the same channel on tips point upward. the microphone or transmitter. Connect the supplied AC power adaptor to the DC IN 9V connector and an audio mixer or amplifier to the TUNER OUTPUT connector. WRR-800A(AU)

  • Page 11: Muting Functions

    GP group will be displayed. button. Selecting the reception channel by frequency Press the GP button. This changes the GP/CH indication to a frequency indication. WRR-800A(AU)

  • Page 12: Error Messages

    32.768 kHz is Contact your nearest If the desired channel or frequency is displayed, release being received, the audio Sony dealer. If you are signal output is muted. using a WRT-810A the SET button and CH button. wireless microphone, a “NO TONE”...

  • Page 13: Service Overview

    VR-245 2-2. PRECAUTION IN WIRING HARNESS . The harness inside the WRR-800A 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 14: Error Messages

    Replace the tuner unit then perform “3. Electrical Alignment.” 2-4. SERVICE FUNCTION Set or release the following functions by operating the button on the front panel of the WRR-800A..Setting / Release of Muting Function...

  • Page 15: Tuner Unit Removal

    3. Desolder the copper leaf from the lid of the tuner unit. 4. Pull out the tuner unit in the arrow direction. BTT M3 Top panel BTT M3 BTT M3 BVTT 2.6 x 5 BTT M3 Tuner unit (WRU-801A) Copper leaf WRR-800A...

  • Page 16: Service Information Of Tuner Unit

    Flat cable (33 wires) 2-545-180-01 TUNER UNIT CHECKING The following procedures describe how to prove the tuner unit of WRR-800A (repair unit) whether it needs to be repaired or not. Equipment Required : WRR-801A(quality unit) (1) Install the repair tuner unit to be examined in a quality WRR-801A.

  • Page 17: Electrical Alignment

    (sine wave) can be generated. Mic amp Gain: 0 dB to 70 dB (with A weighted filter) — Oscilloscope Frequency: DC to 30 MHz — Tools Name Part No. Remarks Adjuster (0.4 x 1.3 mm) 7-721-052-81 For adjustment WRR-800A...
  • Page 18 Adjust the output of 100 dBu the signal generator (SSG) so that the 0 dBuV = _113 dBm 50 Z meter reads 50 mV. (EMF = Electromotive force) 50 Z 50 mV 0 dBm = 1 mW at 50 Z loaded WRR-800A...
  • Page 19 (1) Connect the signal generator to the ANTENNA A IN (11)Indication on the LCD appears as follows: connector. LCD: (2) Turn OFF the WRR-800A POWER switch. (3) Set the RF OUTPUT (output level) of the signal A C2 L generator to the OFF.
  • Page 20 FREQUENCY (carrier frequency): 804.000 MHz (19)Check first that indication “L” of “AC3L” on the LCD has disappeared, and then press the “SET” button on the front panel. (20)Indication on the LCD appears as follows: LCD: B C3 L (B C3 L) WRR-800A...

  • Page 21: Equipment And Tools

    Signal generator setting 3. Remove the upper side case lid of the tuner unit, and FREQUENCY (Carrier frequency): 799.250 MHz insert the tuner unit to the slot of the WRR-800A. RF OUTPUT (Output level): 60 dBuV (= _53 dBm) Equipment and Tools MODULATION (Modulation frequency): 1 kHz DEVIATION (Frequency deviation): ±...

  • Page 22: Adjustment

    ( S/N; 20 dB ± 5 dB) under the “ Step 1. S/N check ”. 5. Attach the lower side case lid to the tuner unit, and insert the tuner unit to the slot of the WRR-800A. (5) Turn 1RV205(tuner unit) slowly counterclockwise to...

  • Page 23: Overall Characteristics Check

    After completing adjustment, turn off the WRR-800A power switch and perform the followings. Oscilloscope (1) Remove the tuner unit from the WRR-800A. (2) Remove the lower side case lid from the tuner unit, and unsolder the wire ( 80 mm long) from the TP201 (NOISE) terminal (land).
  • Page 24 (5) Read the output level of the TUNER OUTPUT connector (Audio analyzer indication level). This level Procedure is specified to be 0 dB. (1) Set the WRR-800A as follows; (6) Turn OFF the MODULATION of the signal generator Channel setting: Group 00, 6701 channel (No modulation).
  • Page 25 3. Frequency characteristic check 4. Distortion ratio check Procedure Procedure (1) Set the WRR-800A as follows; (1) Set the WRR-800A as follows; Channel setting: Group 00, 6701 channel Channel setting: Group 00, 6701 channel (799.250 MHz) (799.250 MHz) VOL. control: VOL.
  • Page 26 (6) Set the channel setting and FREQUENCY (carrier frequency) of the signal generator as shown 1 and 2 Procedure below. (1) Set the WRR-800A as follows; Perform the procedures (2) through (5) above, for each channel setting (1 and 2). Channel setting: Group 00, 6701 channel 1 Channel setting: (799.250 MHz)
  • Page 27 6. AF level indicator/AF indicator check 7. Muting level check Procedure Procedure (1) Set the WRR-800A as follows; (1) Set the WRR-800A as follows; Channel setting: Group 00, 6701 channel Channel setting: Group 00, 6701 channel (799.250 MHz) (799.250 MHz) VOL.
  • Page 28 8. BATT (Battery) indicator check 9. Tone squelch check Procedure Procedure (1) Set the WRR-800A as follows; (1) Set the WRR-800A as follows; Channel setting: Group 00, 6701 channel Channel setting: Group 00, 6701 channel (799.250 MHz) (799.250 MHz) VOL. control: VOL.

  • Page 29: Semiconductor Pin Assignments

    DIODE, TRANSISTOR, IC SECTION 4 SEMICONDUCTOR PIN ASSIGNMENTS Semiconductors of which functions are equivalent are described here. For parts replacement, refer to the section of Spare Parts in this manual. The circuit diagram of each IC is obtained from the IC data book published by the manufacturer.
  • Page 30 MAX742CWP-TE2 (MAXIM) NJM4558V-TE2 (JRC)FLAT PACKAGE(SMALL) NJM4560M (JRC)FLAT PACKAGE DUAL-OUTPUT, SWITCH-MODE REGURATOR NJM4560M-TE2 —TOP VIEW— NJM5532M (JRC)FLAT PACKAGE INPUT NJM5532M(TE2) : SELECTS VOUTS (±15 V/±12 V) CSH+ 100/ : SELECTS OSC FREQUENCY (200 kHz/100 kHz) DUAL OPERATIONAL AMPLIFIERS : ANALOG SUPPLY VOLTAGE INPUT (+5 V) CSL+ (DUAL-SUPPLY TYPE) : INVERTING COMPENSATION CAPACITOR...
  • Page 31 S-81250PG-PD-S TC74HC4053AFS (TOSHIBA)FLAT PACKAGE S-81250PG-PD-T1 TC74HC4053AFS-EL C-MOS TRIPLE 2-CHANNEL ANALOG MULTIPLEXER/DEMULTIPLEXER THREE TERMINAL POSITIVE VOLTAGE REGULATOR —TOP VIEW— —TOP VIEW— (+2V to +6V) OPEN OPEN OPEN *; V = +3V to +12V < GND TA8122AF (TSB)FLAT PACKAGE CONTROL INPUTS TA8122AF(J.TP2) SELECT ON CHANNEL BU2114F(ROHM)FLAT PACKAGE...

  • Page 33: Block Diagram

    SECTION 5 BLOCK DIAGRAM Outline The WRR-800A consists of the following boards and tuner unit: Board name Ref. No. MB-786 board 1000 to 1200 series CN-1598 board 110, 1100, 1300, 1700, 2000 to 2400 series VR-245 board 1200 series RE-157 board...
  • Page 34 CN1102 CN1002 J1101 AF BLOCK MUTE TUNER OUTPUT IC1005 IC1004 REG. REG. -12V +12V IC1001 RF BLOCK DC-DC CONVERTER Q2101 J1702 ANTENNA B INPUT CN-1598 RV1201 CN1201 CN1101 VR-245 MB-786 CN1003 +15V CN1004 IC1006 REG. RE-157 OVERALL BLOCK WRR-800/WRR-800A WRR-800A...

  • Page 35: Spare Parts

    Therefore, specified parts should be used in the case of replacement. (2) Standardization of Parts Repair parts supplied from Sony Parts Center may not be always identical with the parts which actually in use due to “accommodating the improved parts and/or engineering changes”...

  • Page 36: Exploded View And Parts List

    BVTT3 x 6 BVTT3 x 6 BVTT3 x 6 K3 x 5 BVTT 2.6 x 5 K3 x 5 BVTT 3 x 6 BVTT3 x 6 K3 x 5 BVTT 2 x 4 BVTT2 x 4 Tuner unit (Conpatible with WRU-801/801A) WRR-800A...
  • Page 37 2-545-190-02 o PANEL, FRONT 2-545-194-01 o FOOT 2-545-196-01 o BARRIER (SW) 2-545-206-01 o SPACER (PB) 2-545-363-01 s PLATE, CONNECTION 2-545-387-11 s BTT M3(TITE) 3-897-034-01 o CUSHION (SMALL), ESCUTCHEON 4-382-854-01 s SCREW (M3X8), P, SW (+) 1-237-790-11 s RES, VAR, CARBON 10K WRR-800A...

  • Page 38: Electrical Parts List

    1-163-275-11 s CERAMIC, CHIP 0.001uF 5% 50V R2301 1-216-864-11 s METAL, CHIP 0 5% 1/16W C1125 1-164-218-11 s CERAMIC, CHIP 180PF 50V R2401 1-216-864-11 s METAL, CHIP 0 5% 1/16W C1201 1-128-548-11 s ELECT 4700uF 20% 25V C1202 1-164-004-11 s CERAMIC, CHIP 0.1uF 10% 25V WRR-800A...

  • Page 39: Re-157 Board

    R1001 1-216-033-00 s METAL, CHIP 220 5% 1/10W R1002 1-216-809-11 s METAL, CHIP 100 5% 1/16W R1004 1-216-864-11 s METAL, CHIP 0 5% 1/16W R1005 1-220-906-11 s RES, CHIP 0.15 10% 2W R1006 1-217-611-00 s METAL 0.1 10% 2W WRR-800A...
  • Page 40 RV1201 1-237-790-11 s RES, VAR CARBON 10K 3-860-929-31 s MANUAL, INSTRUCTION ----- FRAME ----- Ref. No. or Q'ty Part No. SP Description 1-562-576-11 s ADAPTER, CONVERSION BNC PIN 1-771-182-11 s SWITCH, POWER 1-783-026-11 s WIRE, FLAT TYPE (33 CORE) WRR-800A...
  • Page 41 SECTION 7 SCHEMATIC DIAGRAMS AND BOARD LAYOUTS CN-1598 CN-1598 -B SIDE -A SIDE 1-666-753-21 1-666-753-21 MB-786 -A SIDE 1-666-752-21 VR-245 VR-245 RE-157 RE-157 -A SIDE -B SIDE -A SIDE -B SIDE 1-666-754-21 1-666-754-21 1-666-755-21 1-666-755-21 MB-786 -B SIDE 1-666-752-21 WRR-800A...
  • Page 42 2SC4738 6.2V 14.4V C1208 14.4V 10µ C1207 R1206 C1206 C1201 C1202 C1203 22µ 220k NOTE 1µF 4700µ 0.1µ 0.1µ DC Voltage are taken with digital multimeter (input impedance 1 MZ or more) under no-signal conditions. C1204 C1205 22µ 22µ WRR-800A...
  • Page 43 0 dBu = 1 uV(at no load) NC:NO MOUNT 0 dBu = _113 dBm(0 dBm = 1 mW, 50 Z load) 0 dBu = 0.775 Vms MB-786 BOARD NO.1-666-752-21 RE-157 BOARD NO. 1-666-755-21 VR-245 BOARD NO. 1-666-754-21 MB-786 BOARD NO. 1-666-752-21 WRR-800/800A B-WRR800A-MB786/M WRR-800A...
  • Page 44 ANT_B 6.8n 2.2µ RF BLOCK R2112 C2201 C2203 R2401 TUNER UNIT J1702 R2114 ANTENNA 100p C2212 R2117 R2119 C2214 100p 100p B IN R2111 Q2201 L2203 C2210 3SK239A 6.8n CN2001 CN-1598 BOARD NO.1-666-753-21 CN-1598 BOARD NO. 1-666-753-21 WRR-800/800A B-WRR800A-CN1598/M WRR-800A...
  • Page 46 Printed in Japan Sony Corporation 1998. 1 08 WRR-800A (AU) E 9-976-859-01 Broadcasting & Professional Systems Company ©1998 Published by Global Support Promotion Dept.

Table of Contents