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Sony BKPF-L753A Maintenance Manual
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Sony BKPF-L753A Maintenance Manual

Sony BKPF-L753A Maintenance Manual

Sony analog audio distribution board maintenance manual
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ANALOG AUDIO DISTRIBUTION BOARD
BKPF-L753A
MAINTENANCE MANUAL
1st Edition (Revised 1)
Serial No. 10001 and Higher

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Summary of Contents for Sony BKPF-L753A

  • Page 1 ANALOG AUDIO DISTRIBUTION BOARD BKPF-L753A MAINTENANCE MANUAL 1st Edition (Revised 1) 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-L753A...

  • Page 3: Table Of Contents

    CMRR (Common Mode Rejection Ratio) Adjustment ... 2-3 (E) 2-5. Input/Output Gain Adjustment for Customer Setting ... 2-3 (E) 3. Spare Parts ADA-55 ... 3-1 CN-1855/1856 ... 3-4 DD-36 ... 3-4 4. Semiconductor Pin Assignments 5. Block Diagram Overall ... 5-1 BKPF-L753A Table of Contents 1 (E)
  • Page 4 6. Schematic Diagrams ADA-55 ... 6-2 CN-1855/1856 ... 6-3 DD-36 ... 6-4 7. Board Layouts ADA-55 ... 7-1 DD-36 ... 7-2 2 (E) BKPF-L753A...

  • Page 5: Manual Structure

    This section describes the board layouts for the ADA-55 and DD-36 boards. The following manual is prepared for this unit..Installation Manual (Supplied with BKPF-L753A) This manual describes the information on BKPF-L753A 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

    The each signal input to the AUDIO 1 and AUDIO 2 connectors is distributed to four outputs Function Green: A power supply of 12 V is normal Red: A power supply of 12 V is abnormal _4 dB _8 dB _4 dB _8 dB BKPF-L753A...

  • Page 9: Unleaded Solder

    . The ordinary soldering iron can be used but the iron tip has to be applied to the solder joint for a slightly longer time. The printed pattern (copper foil) may peel away if the heated tip is applied for too long, so be careful. BKPF-L753A 1-5. Unleaded Solder 1-3 (E)

  • Page 11: Electrical Alignment

    OUTPUT Audio level mater INPUT BKPF-L753A Section 2 Electrical Alignment Model EX-731 (Part No. A-8322-598-A) Tektronix SG505 (Option-02) — Sony PFV-L1 or PFV-L10 — PFV-L1/L10 (Side) Extension board EX-731 (At Gain adj.) OUTPUT 600 Z Remarks Insulation type with lead...

  • Page 12: Preparation Of Adjustment

    8. Check that COR1 (A-3) is set to 0 dB. If not, set it to 0 dB. 9. Adjust the CH2 output level on the audio level meter. Adjustment point: 1RV3/ADA-55 (A-3) Specification: 4.0 0.1 dBm (at 600 Z load) 4.0 0.1 dBm (at 600 Z load) BKPF-L753A...

  • Page 13: Cmrr (Common Mode Rejection Ratio) Adjustment

    7. Adjust the CH1 output level on the audio level meter. Adjustment point: 1RV1/ADA-55 (C-1) Less than _65 dBm (at 600 Z load) Specification: BKPF-L753A 2-4. CMRR (Common Mode Rejection Ratio) Adjustment 2-5. Input/Output Gain Adjustment for Customer Setting 2-5. Input/Output Gain Adjustment for...

  • Page 15: Spare Parts

    1-126-396-11 s ELECT, CHIP 47uF 20% 16V 1-126-396-11 s ELECT, CHIP 47uF 20% 16V 1-163-235-11 s CERAMIC, CHIP 22pF 5% 50V (2012) 1-107-781-11 s ELECT, NONPOLAR 47uF 20% 16V 1-107-781-11 s ELECT, NONPOLAR 47uF 20% 16V BKPF-L753A Section 3 Spare Parts (ADA-55 BOARD) Ref. No.
  • Page 16 1-216-668-11 s METAL, CHIP 5.1K 0.5% 1/10W (2012) 1-216-668-11 s METAL, CHIP 5.1K 0.5% 1/10W (2012) 1-216-611-11 s METAL, CHIP 22 0.5% 1/10W (2012) 1-216-611-11 s METAL, CHIP 22 0.5% 1/10W (2012) 1-216-662-11 s METAL, CHIP 3.0K 0.5% 1/10W (2012) BKPF-L753A...
  • Page 17 R108 1-216-308-00 s METAL, CHIP 4.7 5% 1/10W (2012) R109 1-216-308-00 s METAL, CHIP 4.7 5% 1/10W (2012) R110 1-216-308-00 s METAL, CHIP 4.7 5% 1/10W (2012) BKPF-L753A (ADA-55 BOARD) Ref. No. or Q'ty Part No. SP Description R111 1-216-308-00 s METAL, CHIP 4.7 5% 1/10W (2012) R112 1-216-308-00 s METAL, CHIP 4.7 5% 1/10W (2012)
  • Page 18 7-621-775-10 s SCREW +B 2.6x4 2pcs 7-688-002-11 s WASHER 2.6, MIDDLE The components in the connector panel assembly of BKPF-L753A are out of spare parts except above. When component replacement (except above) is required, replace by assembly (including CN-1855/1856 mounted circuit boards) below.
  • Page 19 DIODE Page MBR0530T1 ... 4-2 CL-155UR/G-D ... 4-2 BKPF-L753A 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 20 Diode, LED, Transistor DIODE —TOP VIEW— MBR0530T1 TRANSISTOR —TOP VIEW— CL-155UR/G-D GREEN —TOP VIEW— 2SA1162G SI4431DY-T1 2SA812-T1-M5M6 2SA1358-Y —TOP VIEW— UN2221 (R1=2.2k,R2=2.2k) UN2221-TX 2SC1623 2SC1623-T1-L5L6 2SC3421-Y SI4410DY-T1-REVA BKPF-L753A...
  • Page 21 SQUARE ∑ NJM5534M (JRC) NJM5534M(TE2) OPERATINAL AMPLIFIER —TOP VIEW— COMPENSATE BALANCE /BALANCE COMPENSATE BKPF-L753A PCF8574AT (PHILIPS) C-MOS REMOTE 8-BIT I/O EXPANDER —TOP VIEW— INPUT A0 - A2 ; ADDRESS INPUTS ; SYSTEM CLOCK LINE OUTPUT ; INTERRUPT OUTPUT ; SERIAL DATA LINE...

  • Page 23: Block Diagram

    1 RV2 2CMMR CN101 CN101 IN R(+) IN R(-) CN-1856 CN-1855 600 Ω (R)(1/2) (1/2) ON/OFF CN101 TO/FROM MOTHERBOARD CN101 DIAG BKPF-L753A Overall Overall 1 GAIN +8dB COR2 +4dB -4dB -8dB DIFF GAIN 1 RV4 1 FINE 2 GAIN +8dB COR1...
  • Page 25 Section 6 Schematic Diagrams Index Board Name Function ADA-55 Board Analog Audio Distribution Board CN-1855/1856 Boards Connector Board DD-36 Board DC-DC Converter Board BKPF-L753A Page...
  • Page 26 ADA-55 ADA-55 SUFFIX: -14 SUFFIX: -14 1 1 RV4:GAIN ADJ. 1 1 RV3:GAIN ADJ. 6-2 (b) 6-2 (b) ADA-55 BOARD NO. 1-668-838-14 BKPF-L753A...
  • Page 28 ADA-55 ADA-55 SUFFIX: -11, 12 SUFFIX: -11, 12 6-2 (a) 6-2 (a) ADA-55 BOARD NO. 1-668-838-11, 12 BKPF-L753A...
  • Page 29 OUT_L(-)1 OUT_L(+)2 OUT_L(-)2 OUT_L(+)3 OUT_L(-)3 OUT_L(+)4 OUT_L(-)4 N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. N.C. BKPF-L753A CN-1855/1856 CN-1855/1856 IN_R(+) IN_R(+) IN_R(-) IN_R(-) OUT_R(+)1 OUT_R(+)1 OUT_R(-)1 OUT_R(-)1 OUT_R(+)2 OUT_R(+)2 OUT_R(-)2 OUT_R(-)2 OUT_R(+)3 OUT_R(+)3 OUT_R(-)3 OUT_R(-)3 OUT_R(+)4...
  • Page 30 BKPF-L753A (SY) : S/N 10001 through 17325 +5Vin DD-36 DD-36 MAX742CWP-TE2 47uH 8 7 6 5 0.1uF 0.0033uF EXT+ SI4410DY-T1-REVA CSH+ 10uF VREF CSL+ MBR0530T1 PUMP MBR0530T1 PDRV 0.0033uF EXT- 100/200 CSH- 12/15 CSL- AGND 8 7 6 5 47uH...
  • Page 31 Section 7 Board Layouts BKPF-L753A ADA-55 ADA-55 SUFFIX: -14 SUFFIX: -14 ADA-55 -A SIDE- SUFFIX: -14 ADA-55 -B SIDE- SUFFIX: -14 -------------------- ADA-55(1-668-838-14) -------------------- R111 R112 R113 R114 R115 R116 CN101 R117 R118 COR1 R119 COR2 R120 COR3 R121 R122...
  • Page 32 R116 R117 R118 R119 R120 R121 R122 R123 R124 R125 R126 R127 R128 R129 R130 R131 R132 R133 R134 R135 R136 R137 R138 R139 R140 R141 R142 R143 R144 R145 R146 R147 R148 R149 TP10 TP11 TP12 TP13 TP14 BKPF-L753A...
  • Page 33 DD-36 DD-36 -A SIDE- -B SIDE- SUFFIX: -11, 12 SUFFIX: -11, 12 BKPF-L753A (SY) : S/N 10001 through 17325 BKPF-L753A DD-36 DD-36 ----------------------- DD-36(1-674-689-11, 12) ----------------------- *:B SIDE...
  • Page 36 Printed in Japan Sony Corporation BKPF-L753A (SY) J, E 2003. 11 22 B&P Company 9-967-844-02 ©1999...

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