Sony AC-550CE User manual

AC ADAPTOR
AC-550CE
MAINTENANCE MANUAL
1st Edition
Serial No. 45451 and Higher

AC-550CE
!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
AC-550CE
Table of Contents
Manual Structure
Purpose of this manual .............................................................................................. 3
Related manual .......................................................................................................... 3
Contents ..................................................................................................................... 3
1. Service Overview
1-1. Connectors and Cable ................................................................................. 1-1
1-1-1. Connecting Connectors/Cables .................................................. 1-1
1-1-2. Connectors Input/Output Signal ................................................. 1-1
1-2. Notes on Service ......................................................................................... 1-2
1-2-1. Note on Maintenance ................................................................. 1-2
1-2-2. Notes on Repair Parts ................................................................. 1-2
2. Electrical Alignment
2-1. Output Voltage Adjustment ........................................................................ 2-1
2-2. Excess Current Detection and Adjustment ................................................. 2-1
3. Spare Parts
3-1. Exploded View ............................................................................................ 3-2
3-2. Electrical Parts List ..................................................................................... 3-4
4. Semiconductor Pin Assignments
5. Diagram and Board Layout
5-1. Frame Wiring .............................................................................................. 5-1
5-2. Board Layout ............................................................................................... 5-2

3
AC-550CE
Purpose of this manual
This manual is the maintenance manual for AC Adaptor AC-550CE.
This manual describes the information items on maintenance, and items that premise
the service based on the components parts such as alignment, schematic diagram,
board layout and spare parts list, assuming use of service engineers.
Related manual
Besides this maintenance manual, the following manual is available for this unit.
..
..
.Operation Manual (Supplied with this unit)
This manual is necessary for application and operation of this unit.
Contents
The following are summaries of the each section for understanding the manual.
Section 1 Service Overview
Describes information about connector input/output signals and Notes on Service.
Section 2 Electrical Alignment
Describes electrical adjustment.
Section 3 Spare Parts
Describes parts list, exploded view, and supplied accessories used in the unit.
Section 4 Semiconductor Pin Assignments
Describes function diagrams and pin names of semiconductor used in the unit.
Section 5 Diagram and Board Layout
Describes schematic diagram and board layout.
Manual Structure

1-1
AC-550CE
Section 1
Service Overview
CAMERA (26-pin, Female)
__
__
_EXT VIEW __
__
_
(0 dBu = 0.775 Vrms)
No. Signal Specifications
1 VIDEO IN (X) 1.0 V p-p, Zi = 75 Z
2 VIDEO IN (GND) 1.0 V p-p, Zi = 75 Z
3 NC No connection
4 NC No connection
5 NC No connection
6 NC No connection
7 NC No connection
8 NC No connection
9 MIC IN (X) _60 dBu High impedance
balanced
10 MIC IN (Y) _60 dBu High impedance
balanced
11 MIC IN (GND) _60 dBu High impedance
balanced
12 NC No connection
13 NC No connection
14 NC No connection
15 NC No connection
16 NC No connection
17 FRAME GND
18 EXT VBS OUT (X) 1.0 V p-p, Zo = 75 Z
19 EXT VBS OUT (GND) 1.0 V p-p, Zo = 75 Z
20 NC No connection
21 NC No connection
22 NC No connection
23 NC No connection
24 NC No connection
A DC OUT (+13.5 V) +13.2 V to +13.8 V, 7 A
B DC OUT (GND)
1-1. Connectors and Cable
1-1-1. Connecting Connectors/Cables
To connect cables to each connector of the connector block
for installing or servicing, use the following the connec-
tors, cables or equivalent.
Connector Connector/Cable
VIDEO OUT 1-569-370-12 PLUG, BNC
EXT VBS
(BNC)
CAMERA 1-564-183-00 PLUG, 26-pin male or CCZ
(26-pin, female) cable assembly (accessory)
CCZ-10 (10 m)
DC OUT CCDD-X2 (2 m, supplied with the unit)
(4-pin, female)
MIC OUT 1-508-083-00 XLR, 3-pin female or
(3-pin, male) Cannon XLR-3-11C or equivalent
1-1-2. Connectors Input/Output Signal
AC IN
110 to 120 V / 220 to 240 V AC 10% selectable
VIDEO OUT
BNC type, 75 Z
EXT VBS
BNC type, 75 Z
Voltage selector

1-2 AC-550CE
DC OUT (4-pin, Female)
__
__
_EXT VIEW __
__
_
No. Signal Specifications
1 GND GND for UNREG
2 NC No connection
3 NC No connection
4 DC OUT +13.2 V to +13.8 V, 7 A
MIC OUT (3-pin, Male)
__
__
_EXT VIEW __
__
_
No. Signal Specifications
1 MIC OUT _60 dBu High impedance
balanced
2 MIC OUT
3 MIC OUT
1
4
3
2
1-2. Notes on Service
1-2-1. Note on Maintenance
High voltage exists on the primary side of the mounted
circuit board when the unit is energized. Take utmost care
when checking and repairing and do not touch the primary
side with bare hand or tools.
1-2-2. Notes on Repair Parts
1. Safety Related Components Warning
w
Components marked !are critical to safe operation.
Therefore, specified parts should be used in the case of
replacement.
2. Standardization of Parts
Some repair parts supplied by Sony differ from those
used for the unit. These are because of parts common-
ality and improvement.
Parts list has the present standardized repair parts.
3. Stock of Parts
Parts marked with “o” at SP (Supply Code) column of
the spare parts list may not be stocked. Therefore, the
delivery date will be delayed.
1-1. Connectors and Cable
1-2. Notes on Service

2-1
AC-550CE
Section 2
Electrical Alignment
2-1. Output Voltage Adjustment
Equipment : DC voltmeter
Preparation
1. Turn OFF the power of the AC-550CE.
2. Connect the DC OUT connector of AC-550CE as
shown in the figure below.
3. Turn ON the power of the AC-550CE.
Adjustment
Adjust 1VR201/A board so that the DC voltmeter reading
becomes +13.5 +0.2 V dc.
_0
2-2. Excess Current Detection and
Adjustment
n
Only when part has been replaced, perform adjustment.
Equipment : DC ammeter
Preparation
1. Turn OFF the power of the AC-550CE.
2. Connect the DC OUT connectors of the AC-550CE as
shown in the figure below.
3. Turn 1VR202/A board fully counterclockwise 3.
4. Turn ON the power of the AC-550CE.
Adjustment
Slowly turn 1VR202/A board clockwise 2so that the load
current becomes 15.0 ±0.5 A.
A board (component side)