Sony BKPF-L753 User manual

ANALOG AUDIO DISTRIBUTOR
BKPF-L753
INSTALLATION MANUAL
1st Edition
Serial No. 10001 and Higher

!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. Um die
Gefahr eines elektrischen Schlages, Feuergefahr und Verletzungen zu vermeiden, sind bei
Wartungsarbeiten strikt die Angaben in der Anleitung zu befolgen.Andere als die angegeben
Wartungsarbeiten dürfen nur von Personen ausgeführt werden, die eine spezielle Befähigung
dazu besitzen.
!AVERTISSEMENT
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.

1(E)
BKPF-L753
Table of Contents
Manual Structure
Purpose of this manual ......................................................................................... 3(E)
Contents ................................................................................................................ 3(E)
Related manuals.................................................................................................... 4(E)
1. Installation
1-1. Installing the Board ................................................................................1-1(E)
1-2. Components............................................................................................1-2(E)
1-3. Locations and Functions of Connectors .................................................1-3(E)
1-4. Connectors..............................................................................................1-3(E)
1-5. Signal Input and Output .........................................................................1-4(E)
1-6. Locations and Functions of Switches/LED............................................1-5(E)
1-7. ISR (Interactive Status Reporting) .........................................................1-6(E)

3(E)
BKPF-L753
Purpose of this manual This manual is the installation manual of Analog Audio Distributor BKPF-L753.
This manual is intended for use by trained system and service engineers, and
describes the information for installing.
Contents This manual is organized by following sections.
Section 1 Installation
1-1. Installing the Board
This section explains the board installation into the Interface Unit PFV-L1.
1-2. Components
This section describes the items making up the BKPF-L753.
1-3. Locations and Functions of Connectors
This section explains the locations and functions of connectors on the connector
panel.
1-4. Connectors
This section describes the type of connectors on the connector panel and the
matching connectors.
1-5. Signal Input/Output
This section describes the pin assignments of connectors on the connector panel.
1-6. Locations and Functions of Switches/LED
This section explains the name and functions of the switches and LED on the
ADA-55 board and factory setting.
1-7. ISR (Interactive Status Reporting)
This section explains the overview of the ISR system.
Manual Structure

4(E) BKPF-L753
Related manuals The following manuals are prepared for the BKPF-L753.
• Operation Manual (Supplied with BKPF-L753)
This manual describes the notes on operating, the locations and functions of parts,
and controls of the BKPF-L753.
• Maintenance Manual (Available on request)
This manual describes the information for periodic maintenance and detailed
service.
For obtaining the maintenance manual, please contact to your local Sony’s sales/
service office.

1-1(E)
BKPF-L753
Section 1
Installation
Front panel
Screws
PSW 3x6
Board retainer 2
Board lever
1-1. Installing the Board
This section describes how to install the board into the
PFV-L1. The board can be installed in any slot except for
the left slot (for ISR) of the PFV-L1.
n
The left slot is reserved for the BKPF-L600.
Main board installation
1. Turn off the power switches A and B of the PFV-L1.
2. Remove the two screws, then remove the front panel.
3. Remove the two screws. The board retainer is re-
moved.
4. Close the board lever shown in the direction of the
arrow 1. Slide the main board into the unit along the
board guide rails. Connect the board to the MB-779
board surely.
5. Stick the slot label supplied with the optional board
onto the board lever.
6. Install the board retainer.
7. Install the front panel.
n
When removing the main board, turn the board lever in the
direction of the arrow 2, and pull the board out toward
you.
MB-779 board
Component side
1
Board lever
Board
guide rail
Main 
board

1-2(E) BKPF-L753
B 2.6x4Blank panel
B 2.6x4Connector panel
Connector panel installation
Install the connector panel to the slot which contains the
main board.
1. Remove the two screws of the slot which contains the
main board. The blank panel is removed.
n
Keep the removed blank panel.
2. Insert the connector panel.
3. Secure the connector panel to the PFV-L1 with the two
screws securing the blank panel.
n
Do not open the slot for air-cooled effect of the PFV-L1.
Install the blank panel to a dead slot.
1-2. Components
The BKPF-L753 is composed of the following items.
.Main board (ADA-55 board) (1)
.Connector panel (CN-1645 board) (1)
.Slot label (1)
.Operation manual (1)
.Installation manual (1)
1-1. Installing the Board
1-2. Components

1-3(E)
BKPF-L753
12
1-3. Locations and Functions of Connectors
1AUDIO 1 connector : D-sub 25 pin type
Used to input an analog audio signal and output the
signal divided into quarters.
2AUDIO 2 connector : D-sub 25 pin type
Used to input an analog audio signal and output the
signal divided into quarters.
If mono mode is selected with the COR3 /ADA-55,
this connector used to output the signal input to the
AUDIO 1 connector after dividing it into quarters.
The total output signals from the AUDIO 1 and
AUDIO 2 connectors are the eight signals.
1-4. Connectors
When external cables are connected to the connectors on the connector panel during maintenance, the
hardware listed below (or equivalents) must be used:
BKPF-L753 Connector Panel Matching Connector
Print on Panel Type Type Sony Part No.
AUDIO 1 D-sub 25 pin (Female) D-sub 25 pin (Male) 1-564-747-11 (Soldering) or
AUDIO 2 1-566-356-11 (Solderless)
1-3. Locations and Functions of Connectors
1-4. Connectors

1-4(E) BKPF-L753
1
13
14
25
1-5. Signal Input and Output
Input and output signals of the connector on the connector
panel is as shown here:
AUDIO 1, AUDIO 2 (D-sub 25 pin, female)
<EXT VIEW>
Pin No. Signal
1 IN (+)
2 IN (_)
3 GND
4 GND
5 OUT 1 (GND)
6 GND
7 OUT 2 (+)
8 OUT 2 (_)
9 GND
10 OUT 3 (GND)
11 GND
12 OUT 4 (+)
13 OUT 4 (_)
14 IN (GND)
15 GND
16 GND
17 OUT 1 (+)
18 OUT 1 (_)
19 GND
20 OUT 2 (GND)
21 GND
22 OUT 3 (+)
23 OUT 3 (_)
24 GND
25 OUT 4 (GND)
1-5. Signal Input and Output

1-5(E)
BKPF-L753
COR1
D1
RV3
18
2
3
4
5
Component side (A side)
1
1
MO
ST
RV4
COR2
COR3
S1
S2
7
6
+8 dB +4 dB 0 dB _4 dB _8 dB
(Factory setting)
+8 dB +4 dB 0 dB _4 dB _8 dB
(Factory setting)
1-6. Locations and Functions of Switches/LED
ADA-55 Board
1COR2 : AUDIO 1 Gain Selection
Selects an input/output gain of the signal input to the AUDIO 1 connector.
2RV4 : AUDIO 1 Fine Adjustment
Adjusts the gain of the signal input to the AUDIO 1 connector within the ±2 dB range.
3D1 : POWER indicator
Lights in green when the ±12 V power is supplied from a DC-DC converter (DD1/ADA-55).
n
Lights in red when the ±12 V power is not supplied normally from the DC-DC converter.
4COR1 : AUDIO 2 Gain Selection
Selects the input/output gain of the signal input to the AUDIO 2 connector.
n
If mono mode is selected with the COR3, this AUDIO 2 gain selection is inoperative.
1-6. Locations and Functions of Switches/LED

1-6(E) BKPF-L753
5RV3 : AUDIO 2 Fine Adjustment
Adjusts the gain of the signal input to the AUDIO 2 connector within the ±2 dB range.
n
If mono mode is selected with the COR3, this AUDIO 2 fine adjustment is inoperative.
6COR3 : MONO/STEREO Selection
Selects mono or stereo mode of the analog audio signal input/output.
STEREO : Used to output the signals input to AUDIO 1 and AUDIO 2 connectors after dividing
these signals into quarters respectively.
MONO : Used to output the signal input to the AUDIO 1 connector after dividing it into quar-
ters.
7S1 : AUDIO 1 Input Impedance Selection switch
Selects the 600 Zor 20 kZinput impedance of the signal input to the AUDIO 1 connector.
ON : 600 Z(Factory setting)
OFF : 20 kZ
8S2 : AUDIO 2 Input Impedance Selection switch
Selects the 600 Zor 20 kZinput impedance of the signal input to the AUDIO 2 connector.
ON : 600 Z(Factory setting)
OFF : 20 kZ
1-7. ISR (Interactive Status Reporting)
When this BKPF-L753 is installed in combination with the BKPF-L600 ISR Interface Board in the
Interface Unit PFV-L1, the operating status of this BKPF-L753 is monitored from a host computer with
the ISR function.
Refer to manuals of the BKPF-L600 for the details.
Status message (Warning/Error)
Message Description
OTHER ERROR Indicates that the ±12 V power is not supplied from the DC-DC converter on the board
normally.
1-6. Locations and Functions of Switches/LED
1-7. ISR (Interactive Status Reporting)

The material contained in this manual consists of
information that is the property of Sony Corporation and
is intended solely for use by the purchasers of the
equipment described in this manual.
Sony Corporation expressly prohibits the duplication of
any portion of this manual or the use thereof for any
purpose other than the operation or maintenance of the
equipment described in this manual without the express
written permission of Sony Corporation.
Le matériel contenu dans ce manuel consiste en
informations qui sont la propriété de Sony Corporation et
sont destinées exclusivement à l’usage des acquéreurs
de l’équipement décrit dans ce manuel.
Sony Corporation interdit formellement la copie de
quelque partie que ce soit de ce manuel ou son emploi
pour tout autre but que des opérations ou entretiens de
l’équipement à moins d’une permission écrite de Sony
Corporation.
Das in dieser Anleitung enthaltene Material besteht aus
Informationen, die Eigentum der Sony Corporation sind,
und ausschließlich zum Gebrauch durch den Käufer der
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sind.
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Vervielfältigung jeglicher Teile dieser Anleitung oder den
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beschriebenen Ausrüstung ohne ausdrückliche
schriftliche Erlaubnis der Sony Corporation.

Printed in Japan
Sony Corporation 1997. 12 16
Broadcast Products Company ©1997
Published by Broadcast Products Company
BKPF-L753 (SY) J, E
3-194-746-01