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Sony BKPF-L753A - page 1
ANALOG AUDIO DISTRIBUTION BOARD BKPF-L753A MAINTENANCE MANUAL 1st Edition (Revised 1) Serial No. 10001 and Higher ...
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Sony BKPF-L753A - page 2
! 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. Refer all servicing to qualified service personnel. ! W ARNUNG Die Anleitung ist nur für quali ...
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Sony BKPF-L753A - page 3
1 (E) BKPF-L753A Table of Contents Manual Structure Purpose of this manual ........................................................................................ 3 (E) Contents ............................................................................................................... 3 (E) Related manuals ..................................... ...
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Sony BKPF-L753A - page 4
2 (E) BKPF-L753A 6. Schematic Diagrams ADA-55 .................................................................................................................. 6-2 CN-1855/1856 ........................................................................................................ 6-3 DD-36 ......................................................... ...
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Sony BKPF-L753A - page 5
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. Contents This manual is organized by following sections. Section 1 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. Be sure to use the specified component in this manual. The IC link is mounted on ...
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Sony BKPF-L753A - page 8
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. OFF: 20 k Z ON: 600 Z 8 S2 AUDIO 2 600 Z S ...
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Sony BKPF-L753A - page 9
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.) : LEAD FREE MARK m . Be sure to use the unleaded solder for the printed circu ...
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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. Item Model Remarks Extension board EX-731 (Part No. A-8322-598-A) Audio signal generator * Tektronix SG505 (Option-02) Audio level meter * — Interface unit Sony PFV-L1 or PFV-L1 ...
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Sony BKPF-L753A - page 12
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. Connect the audio signal generator to the input of CH1 connector. 3. Connect the audio level meter ...
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Sony BKPF-L753A - page 13
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. Connect the audio level meter to one output of CH2 connector. 4. Adjust the CH2 output level on t ...
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Sony BKPF-L753A - page 15
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. SP Description 1pc 3-179-084-01 s LEVER (R), PC BOARD or 3-179-085-01 s LEVER (L), PC BOARD 1pc 3-194-617-01 o HEAT SINK 1pc 3-203-115-01 o CASE, SHIELD (for DD1) 2pcs 7-685-547-14 s SCREW ...
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Sony BKPF-L753A - page 16
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 1.0uF 16V (2012) (S/N 10001 to 11870) CN101 1-506-746-11 s CONNECTOR, DIN 48P, MALE COP1 1-562-579-11 s PLUG, SHORTING COP2 1-562-579-11 s PLUG, SHORTING COP3 1-562-579-11 s PLUG, SHORTING CO ...
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Sony BKPF-L753A - page 17
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 3.3K 0.5% 1/10W (2012) R55 1-216-667-11 s METAL, CHIP 4.7K 0.5% 1/10W (2012) R56 1-21 ...
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Sony BKPF-L753A - page 18
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 2.6, MIDDLE The components in the connector panel assembly of BKPF-L753A are out of spare ...
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Sony BKPF-L753A - page 19
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. TRANSIST OR Pa g e IC Pa g e Section 4 Semiconductor Pin Assignments In ...
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Sony BKPF-L753A - page 20
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=2.2k,R2=2.2k ...
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Sony BKPF-L753A - page 21
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 + CSL + EXT + PUMP PDRV _ EXT _ V + CSH _ CSL _ A-GND DUAL-OUTPUT, SWITCH-MODE REGURATOR — TOP VIEW — INPUT 12/ 15 100/ 200 AV + CC _ CC + 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 GAIN AMP S1 OFF ON 600 Ω ON/OFF S1 OFF ON 600 Ω ON/OFF 1 GAIN 1 FINE 1 RV3 2 FINE IC5 1CMMR 1 RV2 2CMMR POWER AMP POWER AMP AMP INV POWER AMP POWE ...
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Sony BKPF-L753A - page 25
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 Board 6-4 ...
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Sony BKPF-L753A - page 26
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/OFF -4dB -4dB ON/OFF ON/OFF 1 FINE 1 FINE MONO MONO OUT-C OUT-C +4dB +4dB 0dB 0dB -10dB -10dB OUT-H OUT-H 600 600 OUT-C OUT-C 0dB 0dB 1 GAIN 1 GAIN RV ...
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Sony BKPF-L753A - page 28
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 1.5k R82 C40 47uF 16V TP1 TP3 COR2 1 3 2 4 5 7 6 8 91 0 R13 10k C47 7pF 16V 47uF C7 R79 3k CN101 ...
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Sony BKPF-L753A - page 29
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.C. GND GND GND N.C. GND N.C. N.C. GND GND GND N.C. N.C. GND GND GND GND GND GND N.C. N.C. GND N.C. GND GND 9C 3C 12C 4 10A 15A 18 20 1 6 16 7A 12B 2B 14C 7B 10 8 11 6 17 4B 6B 16 17 2 8 11 10C 5 12 ...
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Sony BKPF-L753A - page 30
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 C8 16V 100uF C10 16V 100uF C11 MAX742CWP-TE2 IC1 CC+ 2 AGND 3 FB+ 1 AV+ 4 GND 18 VREF 7 V+ 13 EXT+ 17 CSH+ 20 CSL+ 19 PUMP 16 PDRV 15 FB- 10 EXT- 14 CS ...
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Sony BKPF-L753A - page 31
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 IC1 C2 IC2 C1 IC3 B2 IC4 B3 IC5 B1 IC6 B2 IC7 F1 IC8 H1 IC9 E2 IC10 H3 IC11 J3 L1 K3 L2 E2 L3 E3 PS1 K3 Q1 A2 Q2 A2 Q3 A2 Q4 A2 Q5 G1 Q6 G1 Q7 H1 Q8 H1 ...
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Sony BKPF-L753A - page 32
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 IC3 B2 IC4 B3 IC5 B1 IC6 B2 IC7 F1 IC8 H2 IC9 E2 IC10 H3 IC11 J3 L1 K3 L2 E2 L3 E3 PS1 K3 Q1 A2 Q2 A2 Q3 A2 Q4 A2 Q5 G1 Q6 G1 Q7 H1 Q8 H1 Q9 G3 Q10 G3 ...
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Sony BKPF-L753A - page 33
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 A2 C8 A1 C10 A2 C11 B1 C13 *A2 CN1 *B2 CN2 *A1 D1 A1 D2 B1 D3 A2 D4 B2 IC1 *B2 L1 A1 L2 B1 Q1 *B1 Q2 *A1 R1 B2 R2 *B1 R3 *A1 DD-36 DD-36 BKPF-L753A ( ...
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Sony BKPF-L753A - page 34
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Sony BKPF-L753A - page 36
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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