• For ADJUSTMENTS (SECTION 6), refer to SERVICE MANUAL, ADJ (9-876-880-51).
• For INSTRUCTION MANUAL, refer to SERVICE MANUAL, LEVEL 1 (9-876-880-41).
• Reference number search on printed wiring boards is available.
The information that is not described in this Service Manual is described
in the LEVEL 2 Service Manual.
When repairing, use this manual together with LEVEL 2 Service Manual.
Contents of LEVEL 2 Service Manual
1. SERVICE NOTE
2. DISASSEMBLY
3. BLOCK DIAGRAMS
4. PRINTED WIRING BOARDS AND
SCHEMATIC DIAGRAMS
5. REPAIR PARTS LIST
OVERALL
POWER
CD-576, EV-016, MS-275, PL-039, ST-123, ST-124,
After correcting the original service problem, perform the following
safety checks before releasing the set to the customer.
1.Check the area of your repair for unsoldered or poorly-soldered
connections. Check the entire board surface for solder splashes
and bridges.
2.Check the interboard wiring to ensure that no wires are
"pinched" or contact high-wattage resistors.
3.Look for unauthorized replacement parts, particularly
transistors, that were installed during a previous repair . Point
them out to the customer and recommend their replacement.
4.Look for parts which, through functioning, show obvious signs
of deterioration. Point them out to the customer and
recommend their replacement.
5.Check the B+ voltage to see it is at the values specified.
6.Flexible Circuit Board Repairing
• Keep the temperature of the soldering iron around 270˚C
during repairing.
• Do not touch the soldering iron on the same conductor of the
circuit board (within 3 times).
• Be careful not to apply force on the conductor when soldering
or unsoldering.
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE WITH
MARK 0 ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS
LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESE
COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS
APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS
PUBLISHED BY SONY .
Unleaded solder
Boards requiring use of unleaded solder are printed with the leadfree 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
Unleaded solder has the following characteristics.
• Unleaded solder melts at a temperature about 40°C higher than
ordinary solder.
Ordinary soldering irons can be used but the iron tip has to be
applied to the solder joint for a slightly longer time.
Soldering irons using a temperature regulator should be set to
about 350°C.
Caution: The printed pattern (copper foil) may peel away if the
heated tip is applied for too long, so be careful!
• Strong viscosity
Unleaded solder is more viscous (sticky , less prone to flow) than
ordinary solder so use caution not to let solder bridges occur such
as on IC pins, etc.
• Usable with ordinary solder
It is best to use only unleaded solder but unleaded solder may
also be added to ordinary solder.
ATTENTION AU COMPOSANT AYANT RAPPORT
À LA SÉCURITÉ!
LES COMPOSANTS IDENTIFÉS P AR UNE MARQUE 0 SUR LES
DIAGRAMMES SCHÉMA TIQUES ET LA LISTE DES PIÈCES SONT
CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT. NE
REMPLACER CES COMPOSANTS QUE PAR DES PIÈSES SONY
DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU
DANS LES SUPPÉMENTS PUBLIÉS PAR SONY.
CAUTION :
Danger of explosion if battery is incorrectly replaced.
Replace only with the same or equivalent type.
4-5. MOUNTED PARTS LOCATION ·································4-64
5.REPAIR PARTS LIST
5-2. ELECTRICAL PARTS LIST ········································5-14
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— 3 —
• METHOD FOR COPYING OR ERASING THE DATA IN INTERNAL MEMORY
p
The data can be copied/erased by the operations on the Setup screen. (When erasing the data, execute formatting the internal memory.)
Note: 1 When replacing the SY-127 board, erase the data in internal memory of the board before replacement.
Note: 2 When replacing the SY-127 board or the IC381 on the SY-127 board, execute formatting and initialize the internal memory after
replacement.
Method for Copying the Data in Internal Memory
Copy
Copies all images in the internal memory to a “Memory Stick”.
OK
Cancel
1 Insert a “Memory Stick” having 32 MB or larger capacity.
2 Select [OK] with v on the control button, then press z.
The message “All data in internal memory will be copied Ready?” appears.
3 Select [OK] with v , then press z.
Copying starts.
Copying
102_COPY
Use batteries with enough capacity or the AC Adaptor (not supplied). If you attempt to copy image files
using batteries with little remaining capacity, the batteries may run out, causing copying to fail or possibly
corrupting the data.
You cannot copy individual images.
The original images in the internal memory are retained even after copying. To delete the contents of the
internal memory, remove the “Memory Stick” after copying, then execute the [Format] command in
Internal Memory Tool.
You cannot select a folder copied on a “Memory Stick”.
The setting of (Print order) marks is not copied even when you copy data.
See the following procedure.
Cancels the copying.
Method for Formatting the Internal Memory
Format
Formats the internal memory.
Note that formatting irrevocably erases all data in the internal memory, including even protected images.
OK
Cancel
1 Select [OK] with v on the control button, then press z.
The message “All data in internal memory will be erased Ready?” appears.
2 Select [OK] with v, then press z.
The format is com
lete.
See the following procedure.
Cancels the formatting.
• PROCESS AFTER FIXING FLASH ERROR
When “FLASH error” (Self-diagnosis Code E : 91 : ** ) occurs, to prevent any abnormal situation caused by high voltage, setting of the
flash is changed automatically to disabling charge and flash setting.
After fixing, this setting needs to be deactivated. Flash error code can be initialized by the operations on the Setup screen.
Method for Initializing the Flash Error Code
Initialize
Initializes the setting to the default setting.
OK
Cancel
See the following procedure.
Cancels the resetting.
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1 Select [OK] with v on the control button, then press z.
The message “Initialize all settings Ready?” appears.
2 Select [OK] with v, then press z.
The settings are reset to the default setting.
Make sure that the power is not disconnected during resetting.
THIS NOTE IS COMMON FOR SCHEMATIC DIAGRAMS
(In addition to this, the necessary note is printed in each block)
(For schematic diagrams)
• All capacitors are in µF unless otherwise noted. pF : µ
Link
µF. 50 V or less are not indicated except f or electrolytics
and tantalums.
• Chip resistors are 1/10 W unless otherwise noted.
kΩ=1000 Ω, MΩ=1000 kΩ.
• Caution when replacing chip parts.
New parts must be attached after removal of chip.
Be careful not to heat the minus side of tantalum
capacitor, Because it is damaged by the heat.
• Some chip part will be indicated as follows.
ExampleC541L452
22U10UH
TA A2520
Kinds of capacitor
Temperature characteristics
External dimensions (mm)
• Constants of resistors, capacitors, ICs and etc with XX
indicate that they are not used.
In such cases, the unused circuits may be indicated.
• Parts with * differ according to the model/destination.
Refer to the mount table for each function.
• All variable and adjustable resistors have characteristic
curve B, unless otherwise noted.
• Signal name
XEDIT→ EDITPB/XREC → PB/REC
• 2: non flammable resistor
• 5: fusible resistor
• C: panel designation
• A: B+ Line
• B: B– Line
•J : IN/OUT direction of (+,–) B LINE.
• C: adjustment for repair.
• A: VIDEO SIGNAL (ANALOG)
• A: AUDIO SIGNAL (ANALOG)
• A: VIDEO/AUDIO SIGNAL (ANALOG)
• A: VIDEO/AUDIO/SER V O SIGNAL
• A: SERVO SIGNAL
• Circled numbers refer to waveforms.
(Measuring conditions voltage and waveform)
• Voltages and waveforms are measured between the
measurement points and ground when camera shoots
color bar chart of pattern box. They are reference v alues
and reference waveforms.
(VOM of DC 10 MΩ input impedance is used)
• Voltage values change depending upon input
impedance of VOM used.)
1. Connection
Pattern boxColor bar chart
Pattern box PTB-450
J-6082-200-A
or
Small pattern box
PTB-1450
J-6082-557-A
Pattern box
100 cm (PTB-450)
40 cm (PTB-1450)
Front of the lens
For PTB-450:
J-6020-250-A
For PTB-1450:
J-6082-559-A
2. Adjust the distance so that the output waveform of
Fig. a and the Fig. b can be obtain.
H
Yellow
Cyan
White
Magenta
Green
AABBA=B
Fig. a (Video output terminal output waveform)
Red
Blue
Electronic beam
scanning frame
CRT picture frame
Precautions Upon Replacing CCD imager
• The CD-576 board mounted as a repair part is not equipped
with a CCD imager.
When replacing this board, remove the CCD imager from
the old one and mount it onto the new one.
• If the CCD imager has been replaced, carry out all the
adjustments for the camera section.
• As the CCD imager may be damaged by static electricity
from its structure, handle it carefully like for the MOS IC.
In addition, ensure that the receiver is not covered with
dusts nor exposed to strong light.
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Fig.b (Picture on monitor TV)
When indicating parts by reference number, please
include the board name.
Note :
The components identified by
mark 0 or dotted line with mark
0 are critical for safety.
Replace only with part number
specified.
Note :
Les composants identifiés par
une marque 0 sont critiques
pour la sécurité.
Ne les remplacer que par une
pièce portant le numéro spécifié.
4-3
4-2. SCHEMATIC DIAGRAMS
For Schematic Diagram
• Refer to page 4-55 for printed wiring board.
1
SY-127 BOARD(1/11)
A
LENS DRIVE
XX MARK:NO MOUNT
:Voltage measurement of
the CSP IC and
the Transistors with
mark,is not possible.
B
C
LENS BLOCK is replaced as a block.
So its PRINTED WIRING BOARD and
SCHEMATIC DIAGRAM are omitted.