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Sony WRR-855B Service Manual
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Sony WRR-855B Service Manual

Sony WRR-855B Service Manual

Uhf synthesized tuner unit
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UHF SYNTHESIZED TUNER UNIT
WRR-855B
SERVICE MANUAL
1st Edition (Revised 2)

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Summary of Contents for Sony WRR-855B

  • Page 1 UHF SYNTHESIZED TUNER UNIT WRR-855B SERVICE MANUAL 1st Edition (Revised 2)
  • Page 2 Ce manual est destiné uniquement aux personnes compétentes en charge de l’entretien. Afin de réduire les risques de décharge 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. WRR-855B...

  • Page 3: Table Of Contents

    Exploded View and Parts List ..............4-2 4-3. Electrical Parts List ..................4-4 4-4. Supplied Accessories ................4-19 5. Semiconductor Pin Assignments 6. Block Diagrams 7. Board Layouts TUN-8 ......................7-2 CPU-342 ...................... 7-4 DP-236 ......................7-6 SW-814 ....................... 7-6 WRR-855B...
  • Page 4 8. Schematic Diagrams TUN-8 ......................8-1 CPU-342 ...................... 8-8 DP-236 ...................... 8-10 SW-814 ..................... 8-10 WRR-855B...
  • Page 6 MU TI PO W O FF S IZ T H E R -8 S Y N U H F U N IT T U N...
  • Page 8 MU TI PO W O FF S IZ T H E R -8 S Y N U H F U N IT T U N...
  • Page 9 ESIZED UHF SYNTH UNIT WRR-85 TUNER...

  • Page 11: Service Overview

    +P2x7 Precision +P2x4.5 Precision +P2x7 Precision Washer 2 +P2x4.5 Front panel assembly +P2.6x10 Washer 2.5 Nylon ring to page 2-2 +P2.6x10 LED spacer Switch spacer Display plate Shield rubber Switch spacer Nylon ring Model Number Label Model number label WRR-855B...
  • Page 12 +P1.7x2 SW-814 Board, DP-236 Board, LCD Remove the PCB Blacket. Unsolder. DP-236 board Remove the Precision +P1.7x2.5 connector. PCB blackt Precision +P2x3 Unsolder. LCD case Unsolder. SW-814 board SW-814 board LCD spacer CPU-342 board Connection conductive board DP-236 board WRR-855B...
  • Page 13 Contact plate Unsolder. Shield plate (B) Precision +K2x4 BNC connector Precision +K2x4 Spacer Sub harness (I/F cable) Contact plate Unsolder. When attaching, cut the contact plate as shown below. Unsolder. Unsolder. Precision +P2.6x4 TUN-8 Board Unsolder. Unsolder. TUN-8 board Unsolder. WRR-855B...

  • Page 14: Notes On Parts Replacement

    1. Replacing the Nylon Ring The WRR-855B is attached to a Camcorder or its adapter using four screws (+P2.6x10) on the front panel assembly. The nylon rings must therefore be attached to the correct position so that the these screws have the same length.

  • Page 15: Precautions When Replacing Eeprom

    2-3. Precautions When Replacing EEPROM On the EEPROM (IC702) mounted on the CPU-342 board, frequency data corresponding to each WRR-855B have been written. After replacing an EEPROM, it is necessary to write the corresponding frequency data to the new EEPROM.

  • Page 16: Service Functions

    2-5. Service Functions Set or release the muting function by operating the buttons on the front panel of the WRR-855B. Function Name Function Setting Procedure Release Procedure Default Factory Setting T OFF mode Muting OFF by tone While pressing the GP While pressing the GP T OFF mode is released.

  • Page 17: Electrical Alignment

    D-sub, 15 pin, female connector. ( Part No.1-563-078-11) To connect a measurement equipment and DC power +7 Vdc input supply to the WRR-855B D-sub connector, locally make AF OUT the power supply/AF OUT connector as shown in the AF OUT GND...

  • Page 18: Adjustments

    The level of the output signal from the signal generator (SSG) when the RF millivoltmeter reads 50 0 dB µV = _113 dBm mV shall be specified as 100 dBµ (at no load). EMF: Electromotive force 0 dBm = 1 mW at 50 Z loaded WRR-855B...

  • Page 19: Tun-8 Board Adjustment

    Spectrum analyzer Step1: Preparation Case Turn off the POWER switch of the WRR-855B, and change the position of the soldering bridge to the printed slit land on the TUN-8 board from 1 to 2 as shown RF adjustment cable below.
  • Page 20 Spectrum analyzer setting After completing adjustment, turn off the main power of CENTER FREQUENCY: the WRR-855B, and change the soldering bridge of the slit land of the TUN-8 board as shown below. (1 → 2) CE21 model; 482.000 MHz CE33 model; 578.000 MHz...
  • Page 21 U14 model; 632.875 MHz ± 5 kHz CT751 U30 model; 728.875 MHz ± 5 kHz U42 model; 800.875 MHz ± 5 kHz U62 model; 920.875 MHz ± 5 kHz U66 model; 944.875 MHz ± 5 kHz CPU-342 board Adjustment: 1CT751/CPU-342 board WRR-855B...
  • Page 22 MUTING: OFF procedure (4), set the output level of the signal genera- tor to 10 dBµ ( = _103 dBm) . (6) Perform the procedure (4) above. Specification : RSSI (A) terminal voltage = Maxi- mum (1.3 Vdc or more) WRR-855B...
  • Page 23 U14 model; 471.000 MHz U30 model; 567.000 MHz This adjustment is performed automatically by the learning U42 model; 639.000 MHz function of the WRR-855B (RSSI learning). U62 model; 759.000 MHz U66 model; 783.000 MHz Equipment and Tools RF OUTPUT (Output level): 30 dBµV ( = _83 dBm) •...
  • Page 24 U30 model; 578.000 MHz U42 model; 650.000 MHz U62 model; 770.000 MHz U66 model; 794.000 MHz (13)Check first that indication ''L" (after the frequency indication) on LCD has disappeared, and then press the S701 switch on the CPU-342 board. WRR-855B...
  • Page 25 ANT IN A ANT IN B Signal generator Oscilloscope Audio analyzer as short as possible Mic amp (about 20 cm or shorter) DC current meter DC power supply Power supply/AF OUT connector +7.0 ±0.1 Vdc Adjustment Location T103 T403 TUN-8 board WRR-855B...
  • Page 26 Specification : AF output level = Maximum Adjustment : 1T103/TUN-8 board (4) Set the audio analyzer to distortion meter mode. (5) Adjustment Specification : Distortion ratio = Minimum (0.8 % or less) Adjustment : 1T103/TUN-8 board Adjust 1T103 finely. 3-10 WRR-855B...
  • Page 27 RF OUTPUT (Output level): 60 dBµV ( = _53 dBm) MODULATION : ± 1 kHz The output level difference between the ANT IN A : ± 5 kHz side and the ANT IN B side should be within 0.3 dB. DEVIATION 3-11 WRR-855B...
  • Page 28 When checking the S/N at 10 dBµV input, note the ANT IN (A or B) connector which shows the better S/N. Use the ANT IN (A or B) connector which shows the better S/N CPU-342 board for adjustment under ''8. Noise Squelch Adjustment". 3-12 WRR-855B...
  • Page 29 RF OUTPUT (Output level): 60 dBµV Adjustment : 1RV205/TUN-8 board ( = _53 dBm) Turn 1RV205 slowly clockwise for MODULATION (Modulation frequency): 32.768 kHz adjustment. (32.768 kHz must be set by connecting Function generator.) DEVIATION (Frequency deviation): ± 1.4 kHz 3-13 WRR-855B...

  • Page 30: Overall Characteristic Confirmation

    • Audio analyzer After completing adjustment (''3-2-1. TUN-8 Board • MIC amp (Noise meter) with A-weighted filter Adjustment"), turn off the main power of the WRR-855B • Oscilloscope and perform the following work then proceed to ''3-2-2. • DC ammeter Overall Characteristics Check'' .
  • Page 31 MUTING: OFF analyzer Step2: Set the signal generator as follows: Signal generator setting FREQUENCY (Carrier frequency) : CE21 model; 482.000 MHz WRR-855B CE33 model; 578.000 MHz as short as possible Mic amp CE62 model; 810.000 MHz (about 20 cm or shorter) CE67 model;...
  • Page 32 Group 00, 69-64 channel (862.000 MHz) Signal generator setting: Group 00, 66-01 channel (782.125 MHz) FREQUENCY: 862.000 MHz Signal generator setting: 2 Channel setting: FREQUENCY: 782.125 MHz Group 00, 67-01 channel (838.125 MHz) Signal generator setting: FREQUENCY: 838.125 MHz 3-16 WRR-855B...
  • Page 33 RF OUTPUT (Output level): 60 dBµV ( = _53 dBm) MODULATION (Mmodulation frequency): 1 kHz DEVIATION (Frequency deviation): ± 12 kHz (3) Read the output level of the AF OUT (indication of the audio analyzer). This level is specified to be 0 dB. 3-17 WRR-855B...
  • Page 34 ( 2 ) through ( 4 ) above. (6) Set the channel and FREQUENCY (carrier frequency) of the signal generator as shown 1 and 2 below. Perform the procedures (1) through (7) above, for each channel setting (1 and 2). 3-18 WRR-855B...
  • Page 35 (4) Set the channel setting and FREQUENCY (carrier Group 00, 66-01 channel (782.125 MHz) frequency) of the signal generator as shown 1 and 2 Signal generator setting: below. Perform the procedures (1) through (3) above, FREQUENCY: 782.125 MHz for each channel setting (1 and 2). 3-19 WRR-855B...
  • Page 36 FREQUENCY: 838.125 MHz FREQUENCY: 758.125 MHz . U66 model 1 Channel setting: Group 00, 69-47 channel (805.875 MHz) Signal generator setting: FREQUENCY: 805.875 MHz 2 Channel setting: Group 00, 66-01 channel (782.125 MHz) Signal generator setting: FREQUENCY: 782.125 MHz 3-20 WRR-855B...
  • Page 37 ± (5.0 ± 1.2) kHz with the AF indicator as follows. AF indicator: Light in green (3) Connect the signal generator to the ANT IN B connec- tor, perform the procedure (2) above. 3-21 WRR-855B...

  • Page 39: 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 40: Exploded View And Parts List

    3-695-864-02 o BRACKET, PCB 3-695-865-01 o PACKING, SWITCH 3-863-767-01 s SPACER, LED 3-695-867-02 o SPACER, SWITCH 3-695-868-01 o PACKING, BNC 3-695-869-01 o PLATE, DISPLAY 3-701-437-21 s WASHER 3-701-438-11 s WASHER, 2.5 φ 3-742-004-01 s RING, NYLON 7-621-772-18 s SCREW +B M2X4 WRR-855B...
  • Page 41 ∗4 ∗2 ∗1 ∗3 ∗4 ∗2 ∗1 ∗3 WRR-855B...

  • Page 42: Electrical Parts List

    1-216-833-11 s RES, CHIP 10K (1608) C779 1-107-826-11 s CAP, CHIP CERAMIC 100000PF B R713 1-216-833-11 s RES, CHIP 10K (1608) C780 1-107-826-11 s CAP, CHIP CERAMIC 100000PF B R714 1-216-833-11 s RES, CHIP 10K (1608) R715 1-216-833-11 s RES, CHIP 10K (1608) WRR-855B...
  • Page 43 1-162-970-11 s CAPACITOR CERAMIC 0.01MF/25V B C779 1-107-826-11 s CAPACITOR,CHIP CERAMIC 0.1MF C780 1-107-826-11 s CAPACITOR,CHIP CERAMIC 0.1MF C781 1-162-970-11 s CAPACITOR CERAMIC 0.01MF/25V B C782 1-162-970-11 s CAPACITOR CERAMIC 0.01MF/25V B C783 1-162-970-11 s CAPACITOR CERAMIC 0.01MF/25V B WRR-855B...
  • Page 44 1-216-833-11 s RESISTOR,CHIP 10K 1/10W (1608) R717 1-216-833-11 s RESISTOR,CHIP 10K 1/10W (1608) R718 1-216-833-11 s RESISTOR,CHIP 10K 1/10W (1608) R719 1-216-841-11 s RESISTOR, CHIP 47K 1/10W 1608 R720 1-216-841-11 s RESISTOR, CHIP 47K 1/10W 1608 R721 1-216-841-11 s RESISTOR, CHIP 47K 1/10W 1608 WRR-855B...
  • Page 45 1-216-821-11 s RESISTOR,CHIP 1.0K 1/10W(1608) R810 1-216-821-11 s RESISTOR,CHIP 1.0K 1/10W(1608) S801 1-692-459-11 s SWITCH S802 1-692-459-11 s SWITCH S801 1-762-526-11 s SWITCH S803 1-692-459-11 s SWITCH S802 1-762-526-11 s SWITCH S804 1-692-459-11 s SWITCH S803 1-762-526-11 s SWITCH S804 1-762-526-11 s SWITCH WRR-855B...
  • Page 46 1-162-964-11 s CAP,CHIP CERAMIC 1000PF B 1608 C149 1-164-227-11 s CAP,CERAMIC 22000PF B 1608 C201 1-104-851-11 s CAP, CHIP TANTALUM ELECT 10MF C202 1-135-201-11 s CAP,CHIP TANTALUM ELECT 10MF C203 1-162-916-11 s CAP, CERAMIC 12PF CH 1608 C204 1-107-826-11 s CAP, CHIP CERAMIC 100000PF B WRR-855B...
  • Page 47 1608 C428 1-164-227-11 s CAP,CERAMIC 22000PF B 1608 C270 1-162-970-11 s CAP, CERAMIC 10000PF B 1608 C429 1-164-227-11 s CAP,CERAMIC 22000PF B 1608 C301 1-162-916-11 s CAP, CERAMIC 12PF CH 1608 C430 1-162-920-11 s CAP, CERAMIC 27PF CH 1608 WRR-855B...
  • Page 48 (CE62/CE67/U66 model) IC208 8-759-198-34 s IC TA75S558F(TE85R) 1-141-313-11 s CAP, CHIP TYPE TRIMMER 10PF (CE21/CE33/U14/U30/U62 model) IC209 8-759-330-32 s IC TC75S51F-TE85L IC210 8-759-075-66 s IC TA75S01F(TE85L) CT105 1-141-313-11 s CAP, CHIP TYPE TRIMMER 10PF IC211 8-759-198-34 s IC TA75S558F(TE85R) 4-10 WRR-855B...
  • Page 49 R117 1-216-839-11 s RES, CHIP 33K (1608) (CE33/U30 model) R118 1-216-844-11 s RES, CHIP 82K (1608) 1-414-467-31 s INDUCTOR, CHIP (J) 22NH R119 1-216-828-11 s RES, CHIP 3.9K (1608) (CE21/U14 model) R120 1-216-839-11 s RES, CHIP 33K (1608) 4-11 WRR-855B...
  • Page 50 1-216-821-11 s RES, CHIP 1.0K (1608) R324 1-216-817-11 s RES, CHIP 470 (1608) R251 1-216-841-11 s RES, CHIP 47K (1608) R325 1-216-839-11 s RES, CHIP 33K (1608) R252 1-216-845-11 s RES, CHIP 100K (1608) R326 1-216-839-11 s RES, CHIP 33K (1608) 4-12 WRR-855B...
  • Page 51 1-241-834-21 s RES, ADJ, CERMET 20K SWF101 1-760-028-11 s FILTER, SAW SWF401 1-760-028-11 s FILTER, SAW T101 1-406-784-21 s TRANSFORMER, IF T102 1-406-782-21 s TRANSFORMER, IF T103 1-411-494-11 s DETECTOR COIL T301 1-406-785-21 s COIL, BALANCE T401 1-406-784-21 s TRANSFORMER, IF 4-13 WRR-855B...
  • Page 52 1-162-970-11 s CAPACITOR CERAMIC 0.01MF/25V B C301 1-162-916-11 s CAPACITOR,CERAMIC 12PF/50V CH C206 1-104-851-11 s CAPACITOR,TANTALUM 10MF/10V C302 1-104-852-11 s CAPACITOR,TANTALUM 22MF/10V C207 1-104-851-11 s CAPACITOR,TANTALUM 10MF/10V C303 1-162-970-11 s CAPACITOR CERAMIC 0.01MF/25V B C304 1-162-970-11 s CAPACITOR CERAMIC 0.01MF/25V B 4-14 WRR-855B...
  • Page 53 1-141-435-21 s CAPACITOR TRIMMER (CHIP TYPE) C431 1-164-227-11 s CAPACITOR,CERAMIC 0.022MF/25V CT401 1-141-325-11 s CAPACITOR,ADJ,TRIMMER(CHIP) C432 1-104-851-11 s CAPACITOR,TANTALUM 10MF/10V (CE62/CE67/U66 model) C433 1-164-227-11 s CAPACITOR,CERAMIC 0.022MF/25V 1-141-313-21 s CAP, CHIP TYPE TRIMMER 10PF C434 1-164-227-11 s CAPACITOR,CERAMIC 0.022MF/25V (U30/U42/U62 model) 4-15 WRR-855B...
  • Page 54 1-414-463-41 s INDUCTOR, CHIP (J) 10NH (CE62/CE67/U62/U66 model) IC402 6-704-478-01 s IC TA8122AF(EL) 1-414-464-41 s INDUCTOR, CHIP (J) 12NH IC651 8-759-095-59 s IC M5237ML-TP1 (U42 model) IC652 8-759-512-51 s IC RH5RE50AC 1-414-465-41 s INDUCTOR, CHIP (J) 15NH (U30 model) 4-16 WRR-855B...
  • Page 55 1-216-797-11 s RESISTOR,CHIP 10 1/10W 1608 R235 1-218-694-11 s RESISTOR,CHIP 1.2K1/16W(1608) R115 1-216-844-11 s RESISTOR,CHIP 82K 1/16W 1608 R236 1-216-834-11 s RESISTOR,CHIP 12K 1/16W 1608 R237 1-216-835-11 s RESISTOR,CHIP 15K 1/10W R238 1-216-797-11 s RESISTOR,CHIP 10 1/10W 1608 4-17 WRR-855B...
  • Page 56 1-218-867-11 s RESISTOR,CHIP 6.8K 1/10W(1608) RV205 1-225-793-11 s RES, ADJ, CERMET 20K R318 1-216-829-11 s RESISTOR,CHIP 4.7K 1/10W(1608) R319 1-216-815-11 s RESISTOR,CHIP 330 1/10W 1608 SWF101 1-760-028-12 s FILTER, SAW R320 1-211-989-11 s RESISTOR,CHIP 68 1/10W (1608) SWF401 1-760-028-12 s FILTER, SAW 4-18 WRR-855B...

  • Page 57: Supplied Accessories

    3-205-474-01 o LABEL, COUNTRY (62)(CE62 model) 11pcs 3-205-475-02 o LABEL, COUNTRY (67)(CE67 model) ----- 3-205-489-13 s OPERATING INSTRUCTIONS FRAME ----- Ref. No. or Q’ty Part No. SP Description 2pcs 1-501-612-13 o ANTENNA (WHIP) 1-565-126-11 o HOUSING, CONNECTOR 7P 4-19 WRR-855B...
  • Page 59 TA75S01F (TE85L) ......5-4 TA75S393F-TE85R ......5-4 TA75S558F (TE85R) ......5-4 TA8122AF (J.TP1) ......5-4 TC4SU69F (TE85R) ......5-4 TC4W53FU (TE12R) ......5-4 TC74HC4053AFT (EL) ....... 5-5 TC75S51F-TE85 ......... 5-5 TC7S08FU (TE85R) ......5-5 TC7S86FU (TE85R) ......5-5 TC7SU04FU (TE85R) ......5-5 WRR-855B...
  • Page 60 -TOP VIEW- (SCALE 4/1) -TOP VIEW- TOP VIEW 2SB1121-T-TD RN1104-TE85L 1S295 (TE85R) 1SS302-TE85L MA133-TX -TOP VIEW- 2SC2351-T1R2 -TOP VIEW- MA132WK-TX XN6501-TW (SCALE 4/1) -TOP VIEW- SLP-124B TOP VIEW XP4601-TXE 2SC3606-TE85L 2SC4738-YGR-TE85L 2SJ132-Z-T2 SLP520D GREEN (SCALE 3/1) (WIDE) 3SK177-T1-U72 3SK245-T2-U55 WRR-855B...
  • Page 61 HIGH IMPEDANCE BUILT-IN CHARGING PUMP OUTPUT FOUT MONITOR FOR PHASE COMPARATOR INPUT OUTPUT SIGNAL REFERENCE FREQUENCY DIVIDER COMPARISON FREQUENCY DIVDER PHASE COMPARATOR OUTPUT OSCOUT CONNECTED TO CRYSTAL OSCILLATOR Ø P AND Ø R OUTPUT FOR PHASE COMPARATOR EXTERNAL CHARGING PUMP WRR-855B...
  • Page 62 1 : HIGH LEVEL IN (+) IN (_) TC4W53FU (TE12R) (TOSHIBA) C-MOS 2-CHANNEL MULTIPLEXER/DEMULTIPLEXER —TOP VIEW— TA75S393F-TE85R (TOSHIBA) SINGLE COMPARATOR OPEN —TOP VIEW— GND 4 CONT. INPUT CHANNEL : LOW LEVEL : HIGH LEVEL OPEN IN (_) IN (+) : DON’T CARE WRR-855B...
  • Page 63 TC7S86FU (TE85R) (TOSHIBA) C-MOS 2-INPUT EXCLUSIVE OR GATE —TOP VIEW— GND 3 • B + A • : LOW LEVEL : HIGH LEVEL TC7SU04FU(TE85R) (TOSHIBA) C-MOS INVERTER —TOP VIEW— GND 3 0 : LOW LEVEL 1 : HIGH LEVEL WRR-855B...
  • Page 64 Operation button (_) (L: ON) SEG20 to SEG23 62 to 65 SQL SET RSSI learning mode setting (L: RSSI learning mode PF5/SEG29 when POWER is on) PF6/SEG30 MUTE MUTING ON/OFF switch (L: ON) Operation button (GP) (L: ON) Reset PE0/INT0/EC PB5/SCK1 WRR-855B...

  • Page 65: Block Diagrams

    MHz signal which is supplied to the CPU. 4 MHz clock and IC652. It supplies DC +5 V (IC652) to the 1st local can be input to the WRR-855B from external source. If circuit of the RF block. external clock is input, clock signal is switched from the...
  • Page 66 WRR-855B...

  • Page 67: Board Layouts

    Section 7 Board Layouts WRR-855B...
  • Page 68 TUN-8 TUN-8 (Suffix:-11) (Suffix:-11) TUN-8 TUN-8 -A SIDE- -B SIDE- SUFFIX: -11 SUFFIX: -11 WRR-855B...
  • Page 69 TUN-8 TUN-8 (Suffix:-22) (Suffix:-22) TUN-8 TUN-8 -A SIDE- -B SIDE- SUFFIX: -22 SUFFIX: -22 WRR-855B...
  • Page 70 CPU-342 CPU-342 (Suffix:-11) (Suffix:-11) CPU-342 -A SIDE- SUFFIX: -11 CPU-342 -B SIDE- SUFFIX: -11 WRR-855B...
  • Page 71 CPU-342 CPU-342 (Suffix:-21) (Suffix:-21) CPU-342 -A SIDE- SUFFIX: -21 CPU-342 -B SIDE- SUFFIX: -21 WRR-855B...
  • Page 72 DP-236 -A SIDE- -B SIDE- -A SIDE- -B SIDE- SUFFIX: -11 SUFFIX: -11 SUFFIX: -21 SUFFIX: -21 SW-814 SW-814 SW-814 SW-814 -A SIDE- -B SIDE- -A SIDE- -B SIDE- SUFFIX: -11 SUFFIX: -11 SUFFIX: -21, 22 SUFFIX: -21, 22 WRR-855B...
  • Page 73 10nH 10nH 10nH 10nH TUN-8 (1/2) 15nH 10nH 6.8nH 6.8nH 6.8nH 6.8nH L103/L403 BOARD NO. 1-681-450-11 L104/L404 15nH 10nH 4.7nH 4.7nH 4.7nH 4.7nH 482MHz 578MHz 770MHz 794MHz 810MHz 850MHz FL101/FL401 482MHz 578MHz 770MHz 794MHz 810MHz 850MHz FL102/FL402 NM:No mount WRR-855B...

  • Page 74: Tun-8

    Notes: • DC voltage are taken with digital multimeter (input impedance 1 MΩ or more) L303 6.8nH 6.8nH 4.7nH 4.7nH 4.7nH 4.7nH under no-signal conditions. L304 6.8nH 6.8nH 4.7nH 4.7nH 4.7nH 4.7nH NM:No mount TUN-8 (2/2) BOARD NO. 1-681-450-11 WRR-855B...
  • Page 75 –70 0dBu = –113dBm (0 dBm = 1mW, 50 load) 0dBm = 0.775Vrms –80 AF (A) : C135 (–) C205 (+) IC203-14P R255/C216 (–) IC204-4P IC205-4P C226 (–) IC206-6, 7P AF OUT AF (B) : C435 (–) C209 (+) WRR-855B...
  • Page 76 810 MHz 850 MHz 578 MHz 650 MHz FL102/FL402 770 MHz 794 MHz 810 MHz 850 MHz 578 MHz 650 MHz Notes: • DC voltage are taken with digital multimeter (input impedance 1 MΩ or more) under no-signal conditions. WRR-855B...
  • Page 77 C417 Q405 0.01uF 0.01uF 3SK254-T2 C431 L410 C432 0.022uF 10uH 10uF AF(B) 001,002 RSSI(B) 2ND_LO(B) 1ST_LO(B) Notes: TUN-8 (1/2) • DC voltage are taken with digital multimeter (input impedance 1 MΩ or more) under no-signal conditions. BOARD NO. 1-681-450-22 WRR-855B...
  • Page 78 728MHz 800MHz L303 5.6nH 5.6nH 4.7nH 4.7nH 6.8nH 6.8nH Notes: TUN-8 (2/2) L304 5.6nH 5.6nH 4.7nH 4.7nH 6.8nH 6.8nH • DC voltage are taken with digital multimeter (input impedance 1 MΩ or more) under no-signal conditions. BOARD NO. 1-681-450-22 WRR-855B...
  • Page 79 –70 0dBu = –113dBm (0 dBm = 1mW, 50 load) 0dBm = 0.775Vrms –80 AF (A) : C135 (–) C205 (+) IC203-14P R255/C216 (–) IC204-4P IC205-4P C226 (–) IC206-6, 7P AF OUT AF (B) : C435 (–) C209 (+) WRR-855B...
  • Page 80 IC777 TC7S08FU(TE85R) C781 Notes: C782 0.01µ 0.01µ C784 C788 C790 • DC voltage are taken with digital multimeter (input impedance 1 MΩ or more) 220p C783 C787 under no-signal conditions. 0.01µ CPU-342 IC773 IC772 NJM2406F-TE2 TC4SU69F(TE85R) BOARD NO. 1-681-451-11 WRR-855B...
  • Page 81 D771 NM 1SS295(TE85R) EXT SW C773 DIGITAL GND 0.01uF I/F OUT(CLK) I/F IN(CS) I/F IN(DI) I/F OUT(DO) Notes: • DC voltage are taken with digital multimeter (input impedance 1 MΩ or more) under no-signal conditions. CPU-342 BOARD NO. 1-681-451-21 WRR-855B...
  • Page 82 Q901 RN1104-TE85L C901 R901 C902 C903 R904 0.01µ 0.01µ 0.01µ Notes: SW-814 SW-814 • DC voltage are taken with digital multimeter (input impedance 1 MΩ or more) under no-signal conditions. BOARD NO. 1-659-884-11 BOARD NO. 1-659-884-21, -22 8-10 8-10 WRR-855B...
  • Page 84 Printed in Japan Sony Corporation WRR-855B (U, CE) E 2006. 6 16 9-976-898-03 ©2001...

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