DOWNLOAD Sony GV-D300 Service Manual ↓ Size: 27.72 MB | Pages: 127 in PDF or view online for FREE

Model
GV-D300
Pages
127
Size
27.72 MB
Type
PDF
Document
Service Manual
Brand
Device
VCR
File
gv-d300.pdf
Date

Sony GV-D300 Service Manual ▷ View online

— 2 —
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK 
!
 OR DOTTED LINE WITH
MARK 
!
 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.
ATTENTION AU COMPOSANT AYANT RAPPORT
À LA SÉCURITÉ!
LES COMPOSANTS IDENTIFÉS PAR UNE MARQUE 
!
 SUR LES
DIAGRAMMES SCHÉMATIQUES 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.
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 CHECK-OUT
After correcting the original service problem, perform the following
safety checks before releasing the set to the customer.
Supplied Accessories
— 3 —
TABLE OF CONTENTS
SERVICE NOTE
1.
Power Supply During Repairs ............................................ 5
2.
How to Take a Cassette Out When the Main Power Cannot
Be Turned ON (Forced Ejected) ......................................... 5
3.
Warning Indicators ............................................................. 5
SELF-DIAGNOSIS FUNCTION
1.
Self-Diagnosis Function ..................................................... 6
2.
Self-Diagnosis Display ....................................................... 6
3.
Service Mode Display ........................................................ 6
3-1.
Display Method .................................................................. 6
3-2.
Switching of Backup No. ................................................... 6
3-3.
End of Display .................................................................... 6
4.
Self-Diagnosis Code Table ................................................. 7
1.
GENERAL
Before you begin
Using this manual .................................................................. 1-1
Basic operations
Installing the AC adaptor/charger .......................................... 1-1
Inserting a cassette ................................................................. 1-2
Playing back a tape ................................................................ 1-2
Advanced operations
Using alternative power sources ............................................ 1-3
Changing the mode setting .................................................... 1-4
Searching a scene ................................................................... 1-5
Displaying recording data - data code function ..................... 1-6
Watching on a TV screen ....................................................... 1-7
Editing onto another tape ....................................................... 1-7
Recording from a VCR or TV ............................................... 1-8
Audio dubbing ....................................................................... 1-9
Superimposing a title ............................................................. 1-9
Making a custom title .......................................................... 1-10
Labeling a cassette ............................................................... 1-11
Assemble editing
What is assemble editing ..................................................... 1-11
Connecting the recording VCR ............................................ 1-11
Setting the VCR to control the recording VCR ................... 1-12
Adjusting the timing to start recording ................................ 1-12
Selecting scenes ................................................................... 1-13
Previewing scenes ................................................................ 1-13
Executing the assemble editing ........................................... 1-14
Additional information
Usable cassettes and playback modes .................................. 1-14
Charging the vanadium-lithium battery in the VCR ............ 1-15
Resetting the date and time .................................................. 1-15
Notes on “InfoLITHIUM” battery pack .............................. 1-15
Maintenance information and precautions ........................... 1-16
Using your VCR abroad ...................................................... 1-17
Trouble check ...................................................................... 1-17
Self-diagnosis display .......................................................... 1-18
Identifying the parts ............................................................. 1-19
Warning indicators ............................................................... 1-20
2.
DISASSEMBLY
2-1.
Cassette Lid Assembly .................................................... 2-1
2-2.
Cabinet (Bottom) Assembly,
FP-571 (Lithium Battery) ................................................ 2-2
2-3.
MD Block Assembly,
Battery Panel Assembly ................................................... 2-2
2-4.
CB-61, RJ-77 Boards ...................................................... 2-3
2-5.
Control Switch Block (FK-71) ........................................ 2-3
2-6.
MD Block ........................................................................ 2-4
2-7.
Cabinet (R) Assembly ..................................................... 2-4
This section is extracted from
instruction manual. (GV-D900)
2-8.
IR-29, IO-62 Boards ........................................................ 2-4
2-9.
EX-34 Board .................................................................... 2-5
2-10. Cabinet (Upper) Assembly .............................................. 2-5
2-11. LCD Display Module (GV-D900/D900E) ...................... 2-5
2-12. Circuit Boards Location .................................................. 2-6
3.
BLOCK DIAGRAMS
3-1.
Overall Block Diagram (1) .............................................. 3-1
3-2.
Overall Block Diagram (2) .............................................. 3-4
3-3.
Power Block Diagram ..................................................... 3-7
4.
PRINTED WIRING BOARDS AND
SCHEMATIC DIAGRAMS
4-1.
Frame Schematic Diagram .............................................. 4-1
4-2.
Printed Wiring Boards and
Schematic Diagrams ........................................................ 4-5
• CB-61 (Chroma Process, SYNC SEP, SIG Interface,
RGB Decoder, Audio, Mode Control, DC-DC Converter)
Printed Wiring Board ...................................... 4-7
• CB-61 (Signal Processor)(1/10)
Schematic Diagram ....................................... 4-14
• CB-61 (Video Input)(2/10)
Schematic Diagram ....................................... 4-17
• CB-61 (Chroma Process)(3/10)
Schematic Diagram ....................................... 4-21
• CB-61 (SYNC SEP, EVR, SIG Interface)(4/10)
Schematic Diagram ....................................... 4-23
• CB-61 (RGB Decoder)(5/10)
Schematic Diagram ....................................... 4-26
• CB-61 (Audio 1)(6/10) Schematic Diagram .............. 4-29
• CB-61 (Audio 2)(7/10) Schematic Diagram .............. 4-32
• CB-61 (IR Block)(8/10) Schematic Diagram ............. 4-35
• IR-29 (IR Transmitter)
Printed Wiring Board and
Schematic Diagram ....................................... 4-37
• CB-61 (Mode Control)(9/10)
Schematic Diagram ....................................... 4-40
• CB-61 (DC-DC Converter)(10/10)
Schematic Diagram ....................................... 4-43
• RJ-77 (REC/PB Process, RF Interface, Blocking,
Mecha Con/Servo, Audio Signal Process, Mode Control)
Printed Wiring Board .................................... 4-47
• RJ-77 (REC/PB Processor)(1/9)
Schematic Diagram ....................................... 4-51
• RJ-77 (RF Interface)(2/9)
Schematic Diagram ....................................... 4-56
• RJ-77 (DV Signal Process)(3/9)
Schematic Diagram ....................................... 4-59
• RJ-77 (Blocking, DRAM)(4/9)
Schematic Diagram ....................................... 4-63
• RJ-77 (ECC, TBC, CHCD)(5/9)
Schematic Diagram ....................................... 4-67
• FP-242, FP-584 (Tape Sensors)
Flexible Boards ............................................. 4-70
• RJ-77 (Audio Signal Process)(6/9)
Schematic Diagram ....................................... 4-72
• RJ-77 (Mecha Con/Servo)(7/9)
Schematic Diagram ....................................... 4-75
• Rj-77 (Audio Display)(8/9)
Schematic Diagram ....................................... 4-78
• Rj-77 (Mode Control)(9/9)
Schematic Diagram ....................................... 4-81
• IO-62 (AV In/Out)
Printed Wiring Board .................................... 4-83
• IO-62 (AV In/Out, Customer Control)
Schematic Diagram ....................................... 4-85
— 4 —
• EX-34 (DC-AC Inverter)
Schematic Diagram ....................................... 4-89
• EX-34 (Multi Connector, Back Light Power)
Printed Wiring Board .................................... 4-93
• FK-71 (Control Switch Block) ................................... 4-95
5.
ADJUSTMENTS
5-1.
Adjustment Preparations ................................................. 5-1
1-1.
Preparations Before Adjustment ...................................... 5-1
1-1-1. List of Service Tools ........................................................ 5-1
5-2.
Mechanism Section Adjustment ...................................... 5-2
2-1.
Operating Without Cassette ............................................. 5-2
2-2.
Tape Path Adjustment ...................................................... 5-2
1.
Preparations for Adjustment ............................................ 5-2
5-3.
Electrical Adjustments ..................................................... 5-3
3-1.
Preparations Before Adjustments .................................... 5-3
3-1-1. Equipment Required ........................................................ 5-3
3-1-2. Precautions on Adjusting ................................................. 5-4
3-1-3. Adjusting Connectors ...................................................... 5-4
3-1-4. Connecting the Equipment .............................................. 5-5
3-1-5. Checking the Input Signals .............................................. 5-6
3-1-7. Input/Output Level and Impedance ................................. 5-6
3-1-6. Alignment Tape ............................................................... 5-6
3-2.
Initialization of D, C Page Data ...................................... 5-7
1.
Initializing the D Page Data ............................................ 5-7
2.
Modification of D Page Data ........................................... 5-7
3.
D Page Table .................................................................... 5-7
4.
Initializing the C Page Data ............................................. 5-9
5.
Modification of C Page Data ........................................... 5-9
6.
C Page Table .................................................................... 5-9
3-3.
System Control System Adjustment .............................. 5-11
1.
Battery End Adjustment (CB-61 Board) ....................... 5-11
3-4.
Servo System Adjustments ............................................ 5-12
1.
T Reel FG Duty Adjustment (RJ-77 Board) .................. 5-12
2.
Switching Position Adjustment (RJ-77 Board) ............. 5-12
3-5.
Video System Adjustments ............................................ 5-13
3-5-1. RF Block Adjustments ................................................... 5-13
1.
Recording Current Adjustment (RJ-77 Board) .............. 5-13
2.
PLL F
0
 Adjustment (RJ-77 Board) ................................ 5-13
3.
CLK DELAY Adjustment (RJ-77 Board) ..................... 5-14
4.
AGC Center Level Adjustment (RJ-77 Board) .............. 5-14
5.
AEQ Adjustment (RJ-77 Board) ................................... 5-15
6.
PLL Capture Range Adjustment (RJ-77 Board) ............ 5-15
3-5-2. Clock Adjustments ........................................................ 5-16
1.
IC1900 27MHz XTAL F
0
 Adjustment (RJ-77 Board) ... 5-16
2.
IC1900 VCO Operation Check (RJ-77 Board) .............. 5-16
3.
IC6101 41.85MHz VCO Operation Check
(RJ-77 Board) ................................................................ 5-16
3-5-3. Base Band Block Adjustments ...................................... 5-17
1.
NPS PLL Adjustment (CB-61 Board) ........................... 5-17
2.
NPS Y Level Adjustment (CB-61 Board) ...................... 5-17
3.
VIDEO Output Y Level Adjustment (CB-61 Board) .... 5-18
4.
S VIDEO Output Y Level Adjustment
(CB-61 Board) ............................................................... 5-18
5.
AGC Adjustment (CB-61 Board) .................................. 5-19
6.
NPS B-Y Level Adjustment (CB-61 Board) ................. 5-19
7.
NPS R-Y Level Adjustment For PAL Model
(CB-61 Board) ............................................................... 5-20
8.
VIDEO Output Burst Level Adjustment
(CB-61 Board) ............................................................... 5-20
9.
NPS R-Y Level Adjustment For NTSC Model
(CB-61 Board) ............................................................... 5-20
10.
S VIDEO Output Chroma Level Adjustment 
(CB-61 Board) ............................................................... 5-21
11.
AFC TC Adjustment (CB-61 Board) ............................. 5-21
12.
AFC F
0
 Adjustment (CB-61 Board) .............................. 5-22
13.
Decoder APC Adjustment (CB-61 Board) .................... 5-22
14.
Decoder ACC Adjustment (CB-61 Board) .................... 5-22
15.
Decoder HUE Adjustment (CB-61 Board) .................... 5-23
16.
Y AD Clamp Adjustment (CB-61 Board) ..................... 5-23
17.
CR AD Clamp Adjustment (CB-61 Board) ................... 5-24
18.
CB AD Clamp Adjustment (CB-61 Board) ................... 5-24
19.
Y AD Level Adjustment (CB-61 Board) ....................... 5-25
20.
CR AD Adjustment (CB-61 Board) ............................... 5-25
21.
CB AD Level Adjustment (CB-61 Board) ..................... 5-26
3-5-4. BIST Check ................................................................... 5-27
1.
Playback System Check ................................................ 5-27
2.
Recording System Check .............................................. 5-28
3-6.
IR Transmitter Adjustments ........................................... 5-29
1.
IR Video Carrier Frequency Adjustment
 (CB-61 Board) .............................................................. 5-29
2.
IR Video Deviation Adjustment (CB-61 Board) ........... 5-29
3.
IR Audio Deviation Adjustment (CB-61 Board) ........... 5-30
3-7.
Audio System Adjustments ........................................... 5-31
1.
Playback Level Check ................................................... 5-31
2.
Overall Level Characteristics Check ............................. 5-31
3.
Overall Separation Check .............................................. 5-31
4.
Overall Noise Level Check ............................................ 5-32
3-8.
LCD System Adjustment (GV-D900/D900E) ............... 5-33
1.
LCD Initial Data Input .................................................. 5-33
2.
PANEL –19V Adjustment (CB-61 Board) .................... 5-34
3.
Horizontal Position Adjustment (CB-61 Board) ........... 5-34
4.
Bright Adjustment (CB-61 Board) ................................ 5-35
5.
Contrast Adjustment (CB-61 Board) ............................. 5-35
6.
Color Adjustment for NTSC Model (CB-61 Board) ..... 5-36
7.
HUE Adjustment for NTSC Model (CB-61 Board) ...... 5-36
8.
Burst Cleaning Adjustment For PAL Model
(CB-61 Board) ............................................................... 5-37
9.
Color Adjustment For PAL Model (CB-61 Board) ....... 5-37
10.
V-COM Adjustment (CB-61 Board) ............................. 5-38
11.
White Balance Adjustment (CB-61 Board) ................... 5-38
5-4.
Service Mode ................................................................. 5-39
4-1.
Adjustment Remote Commander .................................. 5-39
1.
Using the Adjustment Remote Commander .................. 5-39
2.
Precautions Upon Using the
Adjustment Remote Commander .................................. 5-39
4-2.
Data Process .................................................................. 5-40
4-3.
Service Mode ................................................................. 5-41
1.
Setting the Test Mode .................................................... 5-41
2.
Emergence Memory Address ........................................ 5-41
2-1.
EMG Code (Emergency Code) ..................................... 5-41
2-2.
MSW Code .................................................................... 5-42
3.
Bit Value Discrimination ............................................... 5-43
4.
Switch Check (1) ........................................................... 5-43
5.
Switch Check (2) ........................................................... 5-44
6.
Record of Use Check ..................................................... 5-44
6.
REPAIR PARTS LIST
6-1.
Exploded Views ............................................................... 6-1
6-1-1. Cabinet Assembly ............................................................ 6-1
6-1-2. LCD Window Cabinet, Cabinet (Upper) Assembly ........ 6-2
6-1-3. Mechanism Deck Assembly ............................................ 6-3
6-1-4. Cassette Compartment and Drum Assembly ................... 6-4
6-1-5. LS Chassis Block Section ................................................ 6-5
6-1-6. Mechanism Chassis Block Section-1 .............................. 6-6
6-1-7. Mechanism Chassis Block Section-2 .............................. 6-7
6-2.
Electrical Parts List ......................................................... 6-8
— 5 —
SERVICE NOTE
1.
POWER SUPPLY DURING REPAIRS
In this unit, about 5 seconds after power is supplied (8.4V) to the
battery terminal using the service power cord (J-6082-223-A), the
power is shut off so that the unit cannot operate.
This following two methods are available to prevent this. Take note
of which to use during repairs.
Method 1.
Connect the servicing remote commander RM-95 (J-6082-053-B)
to the LANC jack, and set the remote commander switch to the
“ADJ” side.
Method 2.
Press the following battery switch using adhesive tape, etc.
2.
HOW TO TAKE A CASSETTE OUT WHEN THE MAIN POWER
CANNOT BE TURNED ON (FORCED EJECTED)
Procedure:
1.
Remove the cassette lid referring to the section “2. DISASSEMBLY, 2-1”.
2.
Remove the operation switch block (FK-71 board) referring to the section “2. DISASSEMBLY, 2-5”.
3.
Remove the CB-61 board referring to section “2. DISASSEMBLY, 2-4”, and remove the FP-586 flexible board from CN3140 (4P) on
the RJ-77 board.
4.
Apply +4.5 V from the regulated power supply to the loading motor terminal as shown below and remove the cassette.
CAUTION:
 Be careful not contact with the lid frame assembly when applying +4.5 V.
3.
WARNING INDICATORS
If the CAUTION lamp flashes, but no indicators appear on the LCD screen or on the monitor TV screen, it means that an error occurs either
in the fan motor or in the fan motor drive circuit.  Refer to the schematic diagram on page 4-43 for repair.
Regulated power supply
4.5V
GND
Control switch block
Loading motor
Lid frame assembly
Battery switch
Battery sig terminal
Battery terminal 
Battery terminal 
Page of 127
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Sony GV-D300 Service Manual ▷ Download

  • DOWNLOAD Sony GV-D300 Service Manual ↓ Size: 27.72 MB | Pages: 127 in PDF or view online for FREE
  • Here you can View online or download the Service Manual for the Sony GV-D300 in PDF for free, which will help you to disassemble, recover, fix and repair Sony GV-D300 VCR. Information contained in Sony GV-D300 Service Manual (repair manual) includes:
  • Disassembly, troubleshooting, maintenance, adjustment, installation and setup instructions.
  • Schematics, Circuit, Wiring and Block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Exploded View and Parts List.