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Sony BKPF-L752 Maintenance Manual

Audio d/a converter board.
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AUDIO D/A CONVERTER BOARD
BKPF-L752
MAINTENANCE MANUAL
1st Edition
Serial No. 10001 and Higher

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   Summary of Contents for Sony BKPF-L752

  • Page 1

    AUDIO D/A CONVERTER BOARD BKPF-L752 MAINTENANCE MANUAL 1st Edition Serial No. 10001 and Higher...

  • 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. BKPF-L752...

  • Page 3: Table Of Contents

    2-3. Power Supply Voltage Adjustment ... 2-3 (E) 2-4. Input/Output Gain Adjustment ... 2-3 (E) 3. Spare Parts CN-1858/1859 ... 3-1 DAC-38 ... 3-1 4. Semiconductor Pin Assignments 5. Block Diagram OVERALL ... 5-1 BKPF-L752 Table of Contents 1 (E)

  • Page 4

    6. Schematic Diagrams CN-1858/1859 ... 6-1 DAC-38 ... 6-2 7. Board Layout DAC-38 ... 7-1 2 (E) BKPF-L752...

  • Page 5: Manual Structure

    Board Layout This section describes the board layout for the DAC-38 board. The following manual is prepared for this unit..Installation Manual (Supplied with BKPF-L752) This manual describes the information on BKPF-L752 installing. 3 (E)

  • Page 7: Service Overview

    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 8: Name And Function Of Switch/indicator/etc

    (including the case where no signal is input) Green: When a digital audio signal is input to the AES/EBU IN 2 connector Red: When no signal is normally input to the AES/EBU IN 2 connector (including the case where no signal is input) BKPF-L752...

  • Page 9: Electrical Alignment

    Audio level mater Input BKPF-L752 Section 2 Electrical Alignment Model EX-668 (Part No. A-8318-552-A) EX-731 (Part No. A-8322-598-A) SG505 (Option 02) — Sony PFV-L1 or PFV-L10 Sony BKPF-L751 — — PFV-L1/L10 (Side) Extension board EX-668/731 BKPF-L751 AUDIO REF VIDEO /WORD CLOCK...

  • Page 10: Preparation For Adjustment

    11. Check the voltage. Specification: After adjusting the power supply voltage, be sure to perform “2-4. Input/Output Gain Adjustment”. 4.75 0.05 V dc 4.75 0.05 V dc +25.10 0.05 V dc +12.55 0.15 V dc _12.55 0.15 V dc BKPF-L752...

  • Page 11: Input/output Gain Adjustment

    8. Adjust the CH2 output level on the audio level meter. Adjustment point: 1RV201/DAC-38 (A-2) 4.0 0.1 dBm (at 600 Z load) Specification: BKPF-L752 2-4. Input/Output Gain Adjustment CH3 adjustment 9. Connect the generator to the CH3 input of AUDIO IN connector of the audio A/D converter board (BKPF- L751).

  • Page 13: Spare Parts

    7-621-775-10 s SCREW +B 2.6x4 7-688-002-11 s WASHER 2.6, MIDDLE The components in the connector panel assembly of BKPF-L752 are out of spare parts except above. When component replacement (except above) is required, replace by assembly (including CN-1858/1859 mounted circuit boards) below.

  • Page 14

    8-719-800-76 s DIODE 1SS226 D508 8-719-800-76 s DIODE 1SS226 D511 8-719-800-76 s DIODE 1SS226 D512 8-719-941-09 s DIODE DAP202U D513 8-719-941-09 s DIODE DAP202U D814 8-719-027-84 s LED CL-155UR/G-D, RED/GRN D815 8-719-027-84 s LED CL-155UR/G-D, RED/GRN DD701 1-418-402-11 s CONVERTER UNIT, DC-DC BKPF-L752...

  • Page 15

    Q502 8-729-120-28 s TRANSISTOR 2SC1623-L5L6 Q503 8-729-929-02 s TRANSISTOR DTC124XE Q505 8-729-140-75 s TRANSISTOR 2SD999-CLOCK Q506 8-729-040-87 s TRANSISTOR 2SJ463A BKPF-L752 (DAC-38 BOARD) Ref. No. or Q'ty Part No. SP Description Q507 8-729-028-91 s TRANSISTOR DTA144EUA Q508 8-729-040-87 s TRANSISTOR 2SJ463A...

  • Page 16

    RV101 1-230-749-21 s RES, ADJ, CERMET 5K RV201 1-230-749-21 s RES, ADJ, CERMET 5K RV301 1-230-749-21 s RES, ADJ, CERMET 5K RV401 1-230-749-21 s RES, ADJ, CERMET 5K 1-570-598-11 s SWITCH, DIP 4-CKT 1-760-954-11 s OSCILLATOR, CRYSTAL 6.144 MHz BKPF-L752...

  • Page 17

    DAN217 ... 4-2 DAN217-T146 ... 4-2 DAP202U ... 4-2 DAP202UT106 ... 4-2 BKPF-L752 Section 4 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 18

    DAP202U DAP202UT106 TRANSISTOR —TOP VIEW— CL-155UR/G-D CL-155UR/G-DT GREEN —TOP VIEW— —TOP VIEW— —TOP VIEW— —TOP VIEW— 2SA1162G DTA114EKA 2SA812-T1-M5M6 (R1=10k,R2=10k) DTA114EKA-T146 DTA144EUA (R1=47k,R2=47k) DTA144EUA-T106 2SB1204S-FA —TOP VIEW— 2SB1204S-FA-TL DTC114EKA (R1=10k,R2=10k) DTC114EKA-T146 DTC124XE (R1=22k,R2=47k) DTC124XE-TL 2SC1623 2SC1623-T1-L5L6 2SD999-CLCK 2SD999-T1CK 2SJ463A-T1 BKPF-L752...

  • Page 19

    TC74VHC08FT(EL) (TI) C-MOS QUAD 2-INPUT AND GATES —TOP VIEW— Y = A • B = : LOW LEVEL : HIGH LEVEL BKPF-L752 CS8412-CS (CRYSTAL) CS8412-IS-E1 (CRYSTAL) CS8412-IS-E2 DIGITAL AUDIO INTERFACE RECEIVER —TOP VIEW— C OUT Cd/F1 Cc/F0 Cb/E2 Ca/E1 C0/E0...

  • Page 20

    : ANALOG VOLTAGE (L-CH) : ANALOG VOLTAGE (R-CH) : OSCILLATOR ZERO : ZERO DATA FLAG OTHER : NO CONNECTION LOW-PASS OVERSAMPLING ENHANCED FILTER DIGITAL FILTER MULTI-LEVEL WITH DELTA-SIGMA FUNCTION LOW-PASS MODULATOR CONTROLLER FILTER BPZ-CONT. OPEN DRAIN CRYSTAL/OSC EXTL EXTR ZERO CLKO BKPF-L752...

  • Page 21

    REGISTER PORTS write pulse read pulse POWER-ON RESET SSM-2142P (PMI) BALANCED LINE DRIVER —TOP VIEW— _FORCE +FORCE _SENSE +SENSE BKPF-L752 TL7705ACPS (TI) TL7705ACPSR POWER VOLTAGE SUPERVISOR —TOP VIEW— REF OUT RESIN T IN +2.5 V SENSE RESIN OUT (1) SENSE...

  • Page 23

    Q1,IC4 1 RV1 +5V ADJ REGULATOR Q2,IC5 1 RV2 +5V ADJ FROM REGULATOR MOTHERBOARD DD701 DC-DC CONVERTOR 1 RV3 ±12V ADJ Vcc DOWN DETECT BKPF-L752 OVERALL OVERALL Block Diagram IC101 IC102 IC101 AMP. FILTER AMP. IC501 IC201 IC202 IC201 CONVERTOR AMP.

  • Page 25

    Section 6 Schematic Diagrams Index Board Name Function CN-1858/1859 Boards Connector Board DAC-38 Board Audio D/A Converter Board BKPF-L752 CN-1858/1859 BKPF-L752 (SY) : S/N 10001 and Higher Page AES_IN1(+) AES_IN2(+) OUT_L(+)1 OUT_L(-)1 OUT_R(+)1 OUT_R(-)1 OUT_L(+)2 OUT_L(-)2 OUT_R(+)2 OUT_R(-)2 SPARE SPARE...

  • Page 26: Dac-38

    BKPF-L752 (SY) : S/N 10001 and Higher 33uF IC3(1/2) NJM2267M(TE2) 0.1uF AESIN1+ IN OUT 0.1uF DAN217-T146 120nH IC3(2/2) NJM2267M(TE2) 0.1uF AESIN2+ IN OUT 0.1uF DAN217-T146 120nH DAC-38 (1/5) DAC-38 (1/5) +5V-A 10uF GND-A 0.1uF 0.1uF 0.047uF 10uF 330pF 0.1uF CS8412-CS FSYNC 1.5k...

  • Page 27

    BKPF-L752 (SY) : S/N 10001 and Higher +5V-A C503 47uF C504 C505 0.1uF 47uF C506 0.1uF C507 47uF C508 0.1uF D504 R101 1SS226-TE85L C501 8.2k 47uF C502 XTI1 0.1uF D501 IC501 1SS226-TE85L PCM1716E-BT2 SDATA1 D503 VOUTL 1SS226-TE85L EXTL SCK1 C509...

  • Page 28

    BKPF-L752 (SY) : S/N 10001 and Higher +5V-A C514 0.1uF C516 0.1uF C518 0.1uF C511 C512 47uF 0.1uF IC502 PCM1716E-BT2 D506 C519 1SS226-TE85L 47uF XTI2 VOUTL EXTL D505 CLKO 1SS226-TE85L VOUTR SDATA2 DATA EXTR D507 1SS226-TE85L LRCK C520 47uF ZERO...

  • Page 29

    BKPF-L752 (SY) : S/N 10001 and Higher R829 R830 R827 48kHZ AUTO 48kHZ AUTO DE-EM DE-EM E-POWER ERF1 ERF2 E-RLDRV F0-1 F1-1 F2-1 F0-2 F1-2 F2-2 IC606 (1/5) TC74VHC08FT(EL) XTI1 R836 MCK1 XTI2 R837 MCK2 IC606 (2/5) TC74VHC08FT(EL) BKPF-L752 DAC-38 (4/5)

  • Page 30

    BKPF-L752 (SY) : S/N 10001 and Higher DAC-38 (5/5) DAC-38 (5/5) 10uH +5VIN DD701 10uH C722 220uF +VIN +VOUT C701 -VIN C702 47uF VSET 0.1uF C723 C707 -VOUT 220uF GNDGND 10uH 10uH R727 1 RV3:±12V ADJ. 2SA812-T1-M5M6 +12V R723 2SC1623-T1-L5L6...

  • Page 31

    Section 7 Board Layout BKPF-L752 (SY) : S/N 10001 and Higher BKPF-L752 DAC-38 DAC-38 -------------------- DAC-38(1-674-129-11) -------------------- *:B SIDE C103 C104 C105 C107 C108 C109 C110 C112 C113 C114 C116 C118 DAC-38 -A SIDE- C119 C120 C121 SUFFIX: -11 C122...

  • Page 34

    Printed in Japan Sony Corporation 1999. 8 22 BKPF-L752 (SY) J, E Broadcasting & Professional Systems Company ©1999 9-967-843-01...

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