Instruction/ maintenance manual of the product BKPF-L753A Sony
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ANALOG AUDIO DISTRIBUTION BOARD BKPF-L753A MAINTENANCE MANUAL 1st Edition (Revised 1) Serial No. 10001 and Higher.
! W ARNING This manual is intended f or qualified service personnel only . T o reduce the risk of electr ic shoc k, fire or injur y , do not perf orm any servicing other than that contained in the operating instructions unless you are qualified to do so.
1 (E) BKPF-L753A Table of Contents Manual Structure Purpose of this manual ........................................................................................ 3 (E) Contents ........................................................................
2 (E) BKPF-L753A 6. Schematic Diagrams ADA-55 .................................................................................................................. 6-2 CN-1855/1856 .........................................................................
3 (E) BKPF-L753A Purpose of this manual This manual is the maintenance manual of Analog Audio Distribution Board BKPF-L753A. This manual is intended for use by trained system and service engineers, and describes the information for periodic maintenance and detailed service.
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1-1 (E) BKPF-L753A Section 1 Service Overview 1-2. IC Link 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.
1-2 (E) BKPF-L753A 1-4. Name and Function of Switch/Indicator/etc. Main Board (ADA-55 Board: Side A) Switches/shorting plugs (Factory default settings are indicated by a mark) No. Ref. No. Name Function 7 S1 AUDIO 1 600 Z Selects the input impedance of the signal input to the AUDIO 1 connector.
1-3 (E) BKPF-L753A 1-5. Unleaded Solder Boards requiring use of unleaded solder are printed with a lead free mark (LF) indicating the solder contains no lead. (Caution: Some printed circuit boards may not come printed with the lead free mark due to their particular size.
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2-1 (E) BKPF-L753A Section 2 Electrical Alignment 2-1. Electrical Alignment Overview 2-1-1. Required Equipment and Tools Use the equipment listed below or the equivalent.
2-2 (E) BKPF-L753A 2-2. Preparation of Adjustment 2-3. Input/Output Gain Adjustment 2-3. Input/Output Gain Adjustment Measuring equipment: Audio level meter 1. Set the output of the generator to + 4.0 dBm, 1 kHz. (0 dBm = 0.775 Vrms) CH1 adjustment 2.
2-3 (E) BKPF-L753A 2-4. CMRR (Common Mode Rejection Ratio) Adjustment Measuring equipment: Audio level meter 1. Set the output of the generator to + 15.0 dBm, 60 Hz. CH2 adjustment 2. Connect the audio signal generator to the input of CH2 connector. 3.
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3-1 BKPF-L753A Section 3 Spare Parts ------------ ADA-55 BOARD ------------ *1:[Board No. suffix -11,12] *2:[Board No. suffix -14] Ref. No. or Q'ty Part No.
3-2 BKPF-L753A (ADA-55 BOARD) Ref. No. or Q'ty Part No. SP Description C97 1-164-346-11 s CERAMIC, CHIP 1.0uF 16V (2012) C98 1-164-346-11 s CERAMIC, CHIP 1.
3-3 BKPF-L753A (ADA-55 BOARD) Ref. No. or Q'ty Part No. SP Description R51 1-216-662-11 s METAL, CHIP 3.0K 0.5% 1/10W (2012) R52 1-216-611-11 s METAL, CHIP 22 0.5% 1/10W (2012) R53 1-216-611-11 s METAL, CHIP 22 0.5% 1/10W (2012) R54 1-216-663-11 s METAL, CHIP 3.
3-4 BKPF-L753A ------------------ CN-1855/1856 BOARD ------------------ Ref. No. or Q'ty Part No. SP Description 1pc 3-202-610-02 o PANEL (753A), CN 2pcs 3-686-054-02 o STUD, SUPPORT, PC BOARD 4pcs 7-621-775-10 s SCREW +B 2.6x4 2pcs 7-688-002-11 s WASHER 2.
4-1 BKPF-L753A IC DIODE Page LED P age 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.
4-2 BKPF-L753A IC DIODE Diode, LED, Transistor MBR0530T1 LED TRANSIST OR —TOP VIEW— — TOP VIEW — 3 2 1 4 1 2 3 4 8 7 6 5 5 68 7 S CL-155UR/G-D 2SA1162G 2SA812-T1-M5M6 SI4431D Y -T1 RED GREEN 2SA1358-Y — TOP VIEW — 2SC1623 2SC1623-T1-L5L6 2SC3421-Y S S 3 2 S 1 G D D 1 2 3 4 8 7 6 5 D 4 D 5 68 7 SI4410D Y -T1-REV A UN2221 (R1=2.
4-3 BKPF-L753A IC IC PCF8574A T (PHILIPS) NJM5534M (JRC) NJM5534M(TE2) MAX742CWP-TE2 (MAXIM) FB + CC + AV + 100/ 200 12/ 15 VREF SS CC _ FB _ 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 GND CSH.
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5-1 BKPF-L753A 5-1 Section 5 Block Diagram 1 RV1 1 RV4 1 2 1 2 2 1 2 1 2 11 2 2C 2C 1C 1C 2A 2A 1A 1A CN2 CN2 CN1 CN1 CN3 CN2 CN101 CN101 CN101 CN101 IN L(+) IN L(-) IN R(-) IN R(+) DIFF AMP DIFF AMP .
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6-1 BKPF-L753A 6-1 Section 6 Schematic Diagrams Index Board Name Function Page ADA-55 Board Analog Audio Distribution Board 6-2 CN-1855/1856 Boards Connector Board 6-3 DD-36 Board DC-DC Converter Boar.
6-2 (b) BKPF-L753A 6-2 (b) 2 3 4 5 1 A BCD E F GH ADA-55 BOARD NO. 1-668-838-14 ADA-55 SUFFIX: -14 ADA-55 SUFFIX: -14 L-ch L-ch RV1:CMRR ADJ RV1:CMRR ADJ OUT-H OUT-H 1 CMRR 1 CMRR -8dB -8dB ON/OFF ON/.
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6-2 (a) BKPF-L753A 6-2 (a) 2 3 4 5 1 A BCD E F GH ADA-55 BOARD NO . 1-668-838-11, 12 R129 R128 R106 1k 1uF C37 2SC1623-T1-L5L6 Q5 330 R3 12V R125 22 3k R67 33 GND 1uF C26 NJM5534M(TE2) IC3 - 2 OUT 6 + 3V + 7 BAL 1 CP1 8 CP2 5 V- 4 C3 1uF 39 +5V TP2 GND 1.
6-3 BKPF-L753A 6-3 2 3 4 5 1 A BCDE F G H GND GND GND GND GND GND GND GND GND GND GND GND GND GND N.C. GND GND N.C. GND N.C. GND N.C. GND GND GND GND N.
6-4 BKPF-L753A 6-4 2 3 4 5 A BCD E F GH 1 DD-36 BOARD NO . 1-674-689-11, 12 LOT NO. 902-3A5 100 R1 0.1 R2 0.1 R3 0.1uF C1 0.1uF C13 0.0033uF C2 0.0033uF C5 16V 10uF C3 1uF C4 1uF C6 1uF C7 16V 100uF C.
7-1 BKPF-L753A 7-1 Section 7 Board Layouts ADA-55 -B SIDE- SUFFIX: -14 ADA-55 -A SIDE- SUFFIX: -14 C94 F2 C95 G2 C96 H2 C97 J2 C98 J3 CN101 L2 COR1 A2 COR2 A1 COR3 C2 D1 A2 DD36 D3 E1 J3 E2 A2 E3 C2 I.
7-2 BKPF-L753A 7-2 AD A-55 -B SIDE- SUFFIX: -11, 12 AD A-55 -A SIDE- SUFFIX: -11, 12 C94 F2 C95 G2 C96 H2 C97 J2 C98 J3 CN101 L2 COR1 A2 COR2 A1 COR3 C2 D1 A2 DD36 D3 E1 J3 E2 A2 E3 C2 IC1 C2 IC2 C1 I.
7-3 BKPF-L753A 7-3 DD-36 -B SIDE- SUFFIX: -11, 12 DD-36 -A SIDE- SUFFIX: -11, 12 ----------------------- DD-36(1-674-689-11, 12) ----------------------- *:B SIDE C1 B2 C2 B2 C3 B2 C4 A2 C5 A2 C6 B2 C7.
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Printed in Japan Sony Corporation 2003. 11 22 B&P Company ©1999 BKPF-L753A (SY) J, E 9-967-844-02.
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