Sony BKPF-L752 User Manual

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

Summary of Contents of user manual for Sony BKPF-L752

  • Page 1: CoverAUDIO D/A CONVERTER BOARD BKPF-L752 MAINTENANCE MANUAL 1st Edition Serial No. 10001 and Higher
  • Page 2! WARNING This manual is intended for qualified service personnel only. To reduce the risk of electric shock, fire or...
  • Page 3: Table of Contents Table of Contents Manual Structure Purpose of this manual ........................................................................................ 3 (E) Contents ............................................................................................................... 3 (E) Related manuals ......................................................................................................
  • 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 Manual Structure Purpose of this manual This manual is the maintenance manual of Audio D/A Converter Board BKPF-L752. This...
  • Page 6
  • Page 7: 1. Service Overview Section 1 Service Overview 1-1. Notes on Repair Parts 1-2. IC Link Replacement 1. Safety Related Components Warning w...
  • Page 81-3. Name and Function of Switch/Indicator/etc. 1-3. Name and Function of Switch/Indicator/etc. 8 1 D3 2 D814 ON 3 D815...
  • Page 9: 2. Electrical Alignment Section 2 Electrical Alignment 2-1. Electrical Alignment Overview 2-1-1. Required Equipment and Tools Use the equipment listed below or...
  • Page 102-2. Preparation for Adjustment 2-3. Power Supply Voltage Adjustment 2-2. Preparation for Adjustment 2-3. Power Supply Voltage Adjustment 1. Extend...
  • Page 11 2-4. Input/Output Gain Adjustment 2-4. Input/Output Gain Adjustment The specification value described for this input/output gain adjustment is set...
  • Page 12
  • Page 13: 3. Spare Parts Section 3 Spare Parts ------------------ ------------ CN-1858/1859 BOARD DAC-38 BOARD ------------------ ------------ Ref. No. Ref. No. or Q'ty Part...
  • Page 14(DAC-38 BOARD) (DAC-38 BOARD) Ref. No. Ref. No. or Q'ty Part No. SP Description or Q'ty Part No. SP Description...
  • Page 15(DAC-38 BOARD) (DAC-38 BOARD) Ref. No. Ref. No. or Q'ty Part No. SP Description or Q'ty Part No. SP Description...
  • Page 16(DAC-38 BOARD) (DAC-38 BOARD) Ref. No. Ref. No. or Q'ty Part No. SP Description or Q'ty Part No. SP Description...
  • Page 17: 4. Semiconductor Pin Assignments Index IC Section 4 Semiconductor Pin Assignments Semiconductors of which functions are equivalent are described here. For parts replacement,...
  • Page 18IC Diode, LED, Transistor DIODE LED TRANSISTOR —TOP VIEW— —TOP VIEW— —TOP VIEW— 1SS226 CL-155UR/G-D 2SA1162G DTA114EKA 1SS226-TE85L CL-155UR/G-DT 2SA812-T1-M5M6...
  • Page 19 IC IC TC74VHC08FT(EL) (TI) CS8412-CS (CRYSTAL) CS8412-IS-E1 (CRYSTAL) C-MOS QUAD 2-INPUT AND GATES CS8412-IS-E2 —TOP VIEW— 14 13 12...
  • Page 20IC EPM7032SLC44-10(05) (ALTERA) NJM2267M (JRC) NJM2267M(TE2) PROGRAMMABLE LOGIC DEVICE —TOP VIEW— 6 dB VIDEO AMPLIFIER —TOP VIEW— 6 5 4...
  • Page 21 IC PCF8574AT (PHILIPS) TL7705ACPS (TI) TL7705ACPSR C-MOS REMOTE 8-BIT I/O EXPANDER —TOP VIEW— POWER VOLTAGE SUPERVISOR 1 13 —TOP...
  • Page 22
  • Page 23: 5. Block Diagram Block Diagram OVERALL OVERALL Block Diagram Section 5 Block Diagram IC104 DE-EMPHASIS IC101 IC102 IC101 IC103 ON/OFF BALANCED AMP....
  • Page 24
  • Page 25: 6. Schematic Diagrams CN-1858/1859 Section 6 Schematic Diagrams BKPF-L752 (SY) : S/N 10001 and Higher 1 Index Board Name Function Page CN-1858/1859...
  • Page 26 DAC-38 (1/5) DAC-38 (1/5) BKPF-L752 (SY) : S/N 10001 and Higher +5V-A C9 R16 10uF 7.5k 1 16V 1...
  • Page 27 DAC-38 (2/5) DAC-38 (2/5) BKPF-L752 (SY) : S/N 10001 and Higher +5V-A C503 47uF 1 16V +12V C504 0.1uF...
  • Page 28 DAC-38 (3/5) DAC-38 (3/5) BKPF-L752 (SY) : S/N 10001 and Higher 1 +12V C309 10uF 16V C320 +5V-A C319...
  • Page 29 DAC-38 (4/5) DAC-38 (4/5) BKPF-L752 (SY) : S/N 10001 and Higher +5V +5V +5V R601 +5V S3 R829 R830...
  • Page 30 DAC-38 (5/5) DAC-38 (5/5) BKPF-L752 (SY) : S/N 10001 and Higher 1 TP3 +12V L3 +12V 10uH +5VIN !...
  • Page 31: 7. Board Layout DAC-38 DAC-38 Section 7 Board Layout -------------------- DAC-38(1-674-129-11) -------------------- *:B SIDE C1 *G2 C421 B3 E4 C1 R18 E1...
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  • Page 34 Printed in Japan BKPF-L752 (SY) J, E Sony Corporation 1999. 8 22 9-967-843-01 Broadcasting & Professional Systems Company ©1999...