Stereo System User Manual

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AUDIO D/A CONVERTER BOARD

BKPF-L752

MAINTENANCE MANUAL

1st Edition

Serial No. 10001 and Higher

Summary of content (34 pages)

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AUDIO D/A CONVERTER BOARD BKPF-L752 MAINTENANCE MANUAL 1st Edition Serial No.
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! 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. Refer all servicing to qualified service personnel. ! WARNUNG Die Anleitung ist nur für qualifiziertes Fachpersonal bestimmt. Alle Wartungsarbeiten dürfen nur von qualifiziertem Fachpersonal ausgeführt werden.
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Table of Contents Manual Structure Purpose of this manual ........................................................................................ 3 (E) Contents ............................................................................................................... 3 (E) Related manuals ................................................................................................... 3 (E) 1. Service Overview 1-1. 1-2. 1-3. Notes on Repair Parts ...................................................
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6. Schematic Diagrams CN-1858/1859 ........................................................................................................ 6-1 DAC-38 .................................................................................................................. 6-2 7. Board Layout DAC-38 ..................................................................................................................
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Manual Structure Purpose of this manual This manual is the maintenance manual of Audio D/A Converter Board BKPF-L752. This manual is intended for use by trained system and service engineers, and describes the information for periodic maintenance and detailed service. Contents This manual is organized by following sections. Section 1 Service Overview This section explains the notes on repair parts and IC link replacement.
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Section 1 Service Overview 1-1. Notes on Repair Parts 1-2. IC Link Replacement 1. Safety Related Components Warning w Components marked ! are critical to safe operation. Therefore, specified parts should be used in the case of replacement. w An IC link is critical parts to safe operation. Replace this component with Sony parts whose part numbers appear in this manual published by Sony. If not, this may cause a fire or electric shock. Be sure to use the specified component in this manual. 2.
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1-3. Name and Function of Switch/Indicator/etc. 1-3. Name and Function of Switch/Indicator/etc. 8 1 2 3 4 5 6 7 D3 D814 D815 ON S3 1234 RV101 RV201 RV301 RV401 Main Board (DAC-38 Board: Side A) Switches/gain adjusting VRs (Factory default settings are indicated by a \ mark) No. Ref. No.
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Section 2 Electrical Alignment 2-1. Electrical Alignment Overview 2-1-1. Required Equipment and Tools Use the equipment listed below or the equivalent. Item Model Remarks Extension board EX-668 (Part No. A-8318-552-A) For PFV-L1 EX-731 (Part No.
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2-2. Preparation for Adjustment 2-3. Power Supply Voltage Adjustment 2-2. Preparation for Adjustment 2-3. Power Supply Voltage Adjustment 1. Extend the DAC-38 board with a extension board. 2. Write down the customer settings of the switch (S3) on the DAC-38 board in following table. 3. Set the switch S3 as follows: Measuring equipment: Digital voltmeter Ref. No. (Address) Setting at adj. S3 (F-1) No. 1: OFF OFF No. 2: OFF OFF No. 3: OFF No. 4: OFF Customer setting 4.
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2-4. Input/Output Gain Adjustment 2-4. Input/Output Gain Adjustment The specification value described for this input/output gain adjustment is set when the gain is 0 dB (during factory setting). If the customized gain is other than 0 dB, increase or decrease the specification value proportionally to the difference of the gain. Measuring equipment: Audio level meter 1. Set the output of the audio signal generator to +4.0 dBm, 1 kHz. CH1 adjustment 2.
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Section 3 Spare Parts -----------------CN-1858/1859 BOARD -----------------Ref. No. or Q'ty Part No. 1pc 1pc 1pc 3pcs 1pc 1-793-325-11 3-202-613-01 3-686-054-02 7-621-775-10 7-688-002-11 SP Description s o o s s 2-CONNECTOR, COAXIAL, BNC, FEMALE PANEL (752), CN STUD, SUPPORT, PC BOARD SCREW +B 2.6x4 WASHER 2.6, MIDDLE The components in the connector panel assembly of BKPF-L752 are out of spare parts except above.
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(DAC-38 BOARD) (DAC-38 BOARD) Ref. No. or Q'ty Part No. Ref. No. or Q'ty Part No. SP Description SP Description C221 C222 C223 C224 C303 1-126-396-11 1-163-038-00 1-128-398-11 1-128-398-11 1-163-038-00 s s s s s ELECT, CHIP 47uF 20% 16V CERAMIC, CHIP 0.1uF 25V (2012) ELECT 220uF 20% 16V ELECT 220uF 20% 16V CERAMIC, CHIP 0.1uF 25V (2012) C524 C525 C526 C528 C530 1-163-038-00 1-126-395-11 1-126-394-11 1-126-396-11 1-126-394-11 s s s s s CERAMIC, CHIP 0.
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(DAC-38 BOARD) (DAC-38 BOARD) Ref. No. or Q'ty Part No. Ref. No. or Q'ty Part No.
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(DAC-38 BOARD) (DAC-38 BOARD) Ref. No. or Q'ty Part No. Ref. No. or Q'ty Part No. SP Description SP Description R306 R307 R308 R309 R310 1-216-653-11 1-216-653-11 1-216-653-11 1-216-675-11 1-216-677-11 s s s s s METAL, METAL, METAL, METAL, METAL, CHIP CHIP CHIP CHIP CHIP 1.2K 0.5% 1/10W (2012) 1.2K 0.5% 1/10W (2012) 1.2K 0.5% 1/10W (2012) 10K 0.5% 1/10W (2012) 12K 0.
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Index 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. DIODE Page 1SS226 ............................ 4-2 1SS226-TE85L ................. 4-2 1SS352 ............................ 4-2 1SS352-TPH3 ................... 4-2 DAN217 ........................... 4-2 DAN217-T146 ......
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IC Diode, LED, Transistor DIODE LED TRANSISTOR —TOP VIEW— —TOP VIEW— 1SS226 1SS226-TE85L DAN217 DAN217-T146 CL-155UR/G-D CL-155UR/G-DT —TOP VIEW— 2SA1162G 2SA812-T1-M5M6 R1 RED R2 DTA114EKA (R1=10k,R2=10k) DTA114EKA-T146 DTA144EUA (R1=47k,R2=47k) DTA144EUA-T106 GREEN —TOP VIEW— 2SB1204S-FA 2SB1204S-FA-TL 1SS352 1SS352-TPH3 —TOP VIEW— R1 R2 DTC114EKA (R1=10k,R2=10k) DTC114EKA-T146 DTC124XE (R1=22k,R2=47k) DTC124XE-TL —TOP VIEW— DAP202U DAP202UT106 —TOP VIEW— 2SC1623 2SC1623-T1-L5L6 —TO
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IC IC TC74VHC08FT(EL) (TI) CS8412-CS (CRYSTAL) CS8412-IS-E1 (CRYSTAL) CS8412-IS-E2 C-MOS QUAD 2-INPUT AND GATES —TOP VIEW— 14 VDD 13 12 11 10 9 DIGITAL AUDIO INTERFACE RECEIVER 8 A A B Y= —TOP VIEW— Y B C OUT 1 28 VERF OUT 9 Y=A•B=A+B 1 2 3 4 5 6 GND 7 A 0 0 1 1 B 0 1 0 1 Y 0 0 0 1 10 0 : LOW LEVEL 1 : HIGH LEVEL Cd/F1 2 27 Ce/F2 Cc/F0 3 26 S DATA OUT 13 Cb/E2 4 25 ERF OUT 16 C 23 M0 C0/E0 6 24 18 VA 22 7 VD 8 D GND 17 CS12/FCK VERF SEL CBL M0 Ce/F2 M1 Cd
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IC NJM2267M (JRC) NJM2267M(TE2) EPM7032SLC44-10(05) (ALTERA) PROGRAMMABLE LOGIC DEVICE —TOP VIEW— 6 5 6 dB VIDEO AMPLIFIER 4 3 2 1 44 43 42 —TOP VIEW— 41 40 7 39 8 38 9 37 10 36 11 35 12 34 13 33 14 32 15 31 16 30 17 29 VIN1 1 8 VIN2 VCC 7 2 GND VSAG1 3 6 VSAG2 VOUT1 4 5 VOUT2 VIN1 1 6 dB AMP 75 Z DRIVER 6 dB AMP 75 Z DRIVER 4 3 VOUT1 VSAG1 CLAMP 18 19 20 PIN NO.
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IC PCF8574AT (PHILIPS) TL7705ACPS (TI) TL7705ACPSR C-MOS REMOTE 8-BIT I/O EXPANDER —TOP VIEW— POWER VOLTAGE SUPERVISOR 1 A0 IN 1 VDD 16 2 3 A1 IN 2 15 SDA A2 IN 3 14 SCL 13 INT P1 I/O 5 12 P7 I/O P2 I/O 6 11 P6 I/O P3 I/O 7 10 P5 I/O 8 GND —TOP VIEW— 13 7 A1 P0 A2 P1 14 P0 I/O 4 INT A0 P2 SCL P3 P4 P5 P6 P7 SDA 4 VREF OUT 5 1 SENSE VCC 8 VREF 2 6 RESIN IN 2 7 7 RESIN SENSE IN 9 CT IN 10 11 12 3 6 OUT (1) 4 GND 5 OUT (2)) OUT (1) OUT (2) 3 1 6 5 CT 1
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Block Diagram OVERALL OVERALL Block Diagram Section 5 Block Diagram IC104 DE-EMPHASIS ON/OFF IC101 IC102 IC101 AMP. FILTER AMP. IC103 GAIN AMP. S3-3 IC501 IC3 OVERSAMPLING DIGITAL FILTER D814 AES/EBU CH1 IC204 LPF IC202 IC201 AMP. FILTER AMP. CN5 CN1 CN2 1 1 1 AUDIO_IN CH1(+) 7C 7C 2 2 2 AUDIO_IN CH1(-) 9C 9C 6 6 6 AUDIO_IN CH2(+) 10C 10C 7 7 7 AUDIO_IN CH2(-) IC103 GAIN AMP. BALANCED LINE DRIVER CN1 IC502 D/A CONVERTOR AMP. IC301 FILTER AMP.
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CN-1858/1859 Section 6 Schematic Diagrams BKPF-L752 (SY) : S/N 10001 and Higher 1 Index Board Name Function Page CN-1858/1859 Boards Connector Board 6-1 DAC-38 Board Audio D/A Converter Board 6-2 CN2 CN1 1C AES_IN1(+) CN1 2A AES_IN2(+) 1 2 3 4 5 6 1 AES/EBU 2 2 GND CN1 6C 7C 9C 10C 1A 1B 2B 2C 3A 3B 4B 4C 5A 5B 5C 6B 7B 8A 8B 8C 9B 10B 11A 11B 11C 15C 16B OUT_L(+)1 OUT_L(-)1 OUT_R(+)1 OUT_R(-)1 GND GND GND GND GND GND GND GND GND GND GND GND GND GND GND GND GND GND GND GND GND GND GND
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DAC-38 (1/5) DAC-38 (1/5) BKPF-L752 (SY) : S/N 10001 and Higher +5V-A C9 10uF 16V 1 R16 7.5k 1 LOAD R25 43k GND GND-A C10 0.1uF +5V C8 0.047uF R3 10 C3 33uF 10V C11 0.1uF +5V C12 10uF 16V R7 1k C6 0.1uF C15 330pF GND IC3(1/2) NJM2267M(TE2) AESIN1+ R2 1k R1 75 GND C1 0.1uF D1 DAN217-T146 2 4 3 C2 0.1uF R6 470 R4 1.5k R5 10k 2 C7 0.
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DAC-38 (2/5) DAC-38 (2/5) BKPF-L752 (SY) : S/N 10001 and Higher +5V-A 1 C503 47uF 16V +12V C504 0.1uF C505 47uF 16V C109 10uF 16V C103 0.1uF C119 0.1uF E3 C110 0.1uF R105 1.2k IC102(1/2) TL082CPS-E20 R525 1k R201 8.2k VOUTR 1 D502 1SS226-TE85L 1 2 3 FS1 4 4 DM1-1 4 MUTE1 2 DATA 3 BCK 1 LRCK 28 ML/IIS 27 MC/DM1 26 MD/DM0 23 CS/IWO 24 MODE 25 MUTE 22 RST EXTR 21 ZERO C510 47uF 16V 3 C108 0.0033uF GND-A -12V 1 D512 DAP202UT106 3 8 1 GND-A C528 47uF 16V C524 0.
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DAC-38 (3/5) DAC-38 (3/5) BKPF-L752 (SY) : S/N 10001 and Higher 1 +12V C309 10uF 16V +5V-A C310 0.1uF C514 0.1uF C320 47uF 16V C319 0.1uF C303 0.1uF C314 220pF GND-A R310 12k C518 0.1uF R423 22k R424 22k D505 1SS226-TE85L 1 2 3 8 VDD 15 VCC1 20 VCC2L 9 VCC2R 1 4 R312 1.5k C318 0.1uF C321 47uF 16V SENSGND 3 2 GND-A GND-A R314 100k R316 100k C322 0.
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DAC-38 (4/5) DAC-38 (4/5) BKPF-L752 (SY) : S/N 10001 and Higher +5V +5V R601 100k +5V +5V 1 2 3 4 CH 1CH 2CH 1CH 2CH OFF 48kHZ 48kHZ NO NO ON AUTO AUTO DE-EM DE-EM 1 3 5 7 1 2 3 4 2 4 6 8 R830 47k +5V R835 47k 1 1 SDA RB601 100kx8 C601 +5V 0.
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DAC-38 (5/5) DAC-38 (5/5) BKPF-L752 (SY) : S/N 10001 and Higher 1 TP3 +12V L3 10uH +5VIN ! L1 10uH PS1 DD701 C701 47uF 25V C707 1uF 50V C702 0.1uF 1 +VIN 6 +VOUT 2 -VIN 4 COM 5 VSET 3 -VOUT 7 8 C722 220uF 16V C703 220uF 16V C709 220uF 16V C705 0.1uF C723 220uF 16V C704 220uF 16V C710 220uF 16V C706 0.1uF GNDGND RV3 GND GND L4 10uH 1 20k 3 L2 10uH R727 43k +12V GND-A TP4 -12V -12V E8 2 1RV3:±12V ADJ.
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DAC-38 DAC-38 Section 7 Board Layout -------------------DAC-38(1-674-129-11) -------------------*:B SIDE DAC-38 -A SIDESUFFIX: -11 DAC-38 -B SIDE- BKPF-L752 (SY) : S/N 10001 and Higher SUFFIX: -11 BKPF-L752 7-1 7-1 C1 C2 C3 C4 C6 C7 C8 C9 C10 C11 C12 C13 C14 C15 C16 C17 C18 C19 C20 C21 C22 C23 C103 C104 C105 C107 C108 C109 C110 C112 C113 C114 C116 C118 C119 C120 C121 C122 C123 C124 C203 C204 C205 C207 C208 C210 C211 C212 C213 C214 C216 C218 C219 C220 C221 C222 C223 C224 C303 C304 C305 C307 C308 C3
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BKPF-L752 (SY) J, E 9-967-843-01 Sony Corporation Broadcasting & Professional Systems Company Printed in Japan 1999.