DOWNLOAD Sony DHC-FL3 / GDM-C520 / GDM-C520K / HCD-FL3 Service Manual ↓ Size: 4.42 MB | Pages: 69 in PDF or view online for FREE

Model
DHC-FL3 GDM-C520 GDM-C520K HCD-FL3
Pages
69
Size
4.42 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
dhc-fl3-gdm-c520-gdm-c520k-hcd-fl3.pdf
Date

Sony DHC-FL3 / GDM-C520 / GDM-C520K / HCD-FL3 Service Manual ▷ View online

  SERVICE MANUAL
21CR1 
CHASSIS 
Design and specifications are subject to change without notice.
AEP Model
Chassis No: SCC-L49B-A
GDM-C520/C520K
9-978-999-01
TRINITRON
®
 COLOR MONITOR
Picture tube 
0.24 mm aperture grill pitch (center)
 
 
21 inches measured diagonally
 
 
90-degree deflection
 
 
FD Trinitron
Video image area 
(19.8" maximum viewing image)
 
 
Approx. 403.8 X 302.2 mm (w/h)
 
 
(16 x 12 inches)
Resolution   
Horizontal: Max. 1600 dots
 
 
Vertical: Max. 1200 lines
Standard image area  Approx. 388 x 291 mm (w/h)
 
 
(15
3/8
 x 11
1/2
 inches)
Input signal
 
Video 
Analog RGB  (75 ohms typical)
 
 
0.7 Vp-p, Positive
 
Sync 
H/V Separate or Composite 
 
 
TTL Polarity Free 
 
 
(2k ohms impedance)
 
 
Sync on Green
 
 
0.3 Vp-p, Negative
Power Consumption    135 W 
 
 
  (with no USB devices connected)
Deflection frequency    Horizontal: 30 to 130 kHz
 
 
  Vertical: 48 to 170 Hz
AC input voltage/current 100V to 240V, 50- 60Hz, 2.0-1.0A
 
 
Dimensions 
  497 x 499 x 487 mm (w/h/d)
 
 
  (19
3/4
 x 19
1/2
 x 19
1/5
 inches)
Mass 
 
  Approx. 30 kg (66 lb 2 oz.)
Plug and Play 
  DDC2B/DDC2Bi, GTF*
*If the input signal is Generalized Timing Formula (GTF) 
compliant, theGTF feature of the monitor will automatically 
provide an optimal image for the screen.
SPECIFICATIONS
Self Diagnosis
Supported model
GDM-C520K
— 3 —
GDM-C520/C520K
TABLE OF CONTENTS
SECTION TITLE 
PAGE
Power Management .................................................................................................................................. 4
Diagnosis Function
.................................................................................................................................... 4
Timing Specification .................................................................................................................................. 5
Warnings and Cautions............................................................................................................................. 6
Safety Check-Out...................................................................................................................................... 7
SECTION 1: DISASSEMBLY.................................................................................................................................. 8
1-1.  Cabinet Removal............................................................................................................................. 8
1-2.  Service Position............................................................................................................................... 9
1-3.  A1 Board (C Block) Removal ........................................................................................................ 10
1-4.  A1 Board Removal 
........................................................................................................................ 10
1-5.  Bezel Assembly and H2 Board Removal........................................................................................11
1-6.  D Board Removal .......................................................................................................................... 12
1-7.  Picture Tube Removal ................................................................................................................... 13
 
Anode Cap Removal ..................................................................................................................... 13
1-8.  Harness Location .......................................................................................................................... 14
SECTION 2: SAFETY RELATED ADJUSTMENTS.............................................................................................. 15
2-1.  HV Regulator Circuit Check .......................................................................................................... 15
2-2.  HV Protector Circuit Check...............................................................
............................................. 15
2-3.  Beam Current Protector Circuit Check 
.......................................................................................... 15
SECTION 3: ADJUSTMENTS .............................................................................................................................. 16
3-1.  Landing Rough Adjustment ........................................................................................................... 16
3-2.  Landing Fine Adjustment
............................................................................................................... 16
3-3.  Convergence Rough Adjustment................................................................................................... 17
3-4.  White Balance Adjustment Specification 
....................................................................................... 17
3-5.  Vertical and Horizontal Position and Size Specification ................................................................ 18
3-6.  Focus Adjustment
.......................................................................................................................... 18
SECTION 4: DIAGRAMS...................................................................................................................................... 19
4-1.  Circuit Boards Location ................................................................................................................. 19
4-2.  Printed Wiring Board and Schematic Diagram Information
........................................................... 19
4-3.  Block Diagrams ............................................................................................................................. 20
 
A1 Block Diagram, H2 Block Diagram, and L2 Block Diagram ..................................................... 20
 
DA Block Diagram and N Block Diagram ...................................................................................... 21
 
D Block Diagram ........................................................................................................................... 22
4-4.  Schematics and Supporting Information ....................................................................................... 23
 
H2 Board Schematic Diagram....................................................................................................... 23
 
D Board Schematic Diagram......................................................................................................... 24
 
DA Board Schematic Diagram....................................................................................................... 26
 
N Board Schematic Diagram......................................................................................................... 27
 
L2 Board Schematic Diagram ....................................................................................................... 28
 
A1 Board Schematic Diagram ....................................................................................................... 29
4-5.  Semiconductors............................................................................................................................. 31
SECTION 5: EXPLODED VIEW ........................................................................................................................... 33
5-1.  Chassis.......................................................................................................................................... 33
5-2.  Picture Tube .................................................................................................................................. 34
5-3.  Packing Materials (For GDM-C520 Only)...................................................................................... 35
5-4.  Packing Materials (For GDM-C520K Only) ................................................................................... 36
SECTION 6:  ELECTRICAL PARTS LIST............................................................................................................ 37
— 4 —
GDM-C520/C520K
POWER MANAGEMENT
The power saving mode complies with the VESA Display Power Management Signaling standard.  Each state of power management shall be activated 
by the host computer terminating the appropriate sync signals.  Blanking the video must precede termination of the sync signals.  The elapsed time 
counter shall also be controlled by the host computer.  Reactivation of the monitor shall be accomplished from the host computer by re-establishing the 
normal sync signal.
        Power consumption      Screen     Horizontal        Vertical            Power           Recovery time             Indicator
        mode                               (video)    sync signal   sync signal   consumption                                                
1      Normal operation              active             yes                 yes               < 135 W                     --                         Green
                                                                                                                          
2      Active-off* (deep sleep)**  blank             no*                 no*                 < 3 W                                                 Orange
3      Power-off                              --                  --                     --             0 W (approx)                 --                            Off
*   When your computer enters power saving mode, the input signal is cut and NO SIGNAL appears on the screen before the 
    monitor enters active mode.  After a few seconds, the monitor enters power saving mode.
*   "Deep sleep" is power saving mode defined by the Environmental Protection Agency.
DIAGNOSIS FUNCTION
When a failure occurs, the STANDBY/TIMER lamp will flash a set number of times to indicate the possible cause of the problem.  If there is more than 
one error, the lamp will identify the first of the problem areas.
1
2
3
5
4
Status
Area of Failure
LED Indication
Amber (0.5 second) / Off (0.5 second)
Amber (0.5 second) / Off (1.5 second)
+B
Horizontal/Vertical Deflection Failure
Thermal Protector
ABL Protector
HV Failure
Failure 1
Failure 2
Failure 3
Failure 4
Aging/Self Test
6 Out of scan range
Amber (1.5 second) / Off (0.5 second)
Green (0.5 second) / Off (0.5 second)
Green (OSD Indication)
Amber (0.25 second) / Off (0.25 second)
Amber (0.25 second) / Off (1.25 second)
Amber (0.5 second) / Off (0.5 second)
 
 
Aging Mode (Video Aging):  During Power Save, press MENU button for longer than 2 seconds.
 
 
Self Test (OSD Color Bar):  During Power Save, push up Control button for longer than 2 seconds.
 
 
Reliability Check Mode: 
During Power Save, push down Control button for longer than 2 seconds.
— 5 —
GDM-C520/C520K
TIMING SPECIFICATION
MODE AT PRODUCTION
MODE 1
MODE 2
MODE 3
MODE 4
RESOLUTION
640 X 480
1600 X 1200
1920 X 1440
1920 X 1440
CLOCK
25.175 MHz
229.500 MHz
341.000 MHz
297.000 MHz
--HORIZONTAL--
H-FREQ
31.469 kHz
106.250 kHz
128.485 kHz
112.500 kHz
usec
usec
usec
usec
H. TOTAL
31.778
9.412
7.783
8.889
H. BLK
6.356
2.440
2.152
2.424
H. FP
0.636
0.279
0.457
0.485
H. SYNC
3.813
0.837
0.622
0.754
H. BP
1.907
1.325
1.073
1.185
H. ACTIV
25.422
6.972
5.630
6.465
--VERTICAL--
V.  FREQ (HZ)
59.940 Hz
85.000 Hz
84.977 Hz
75.000 Hz
lines
lines
lines
lines
V.  TOTAL
525
1250
1512
1500
V.  BLK
45
50
72
60
V.  FP
10
1
1
1
V.  SYNC
2
3
3
3
V.  BP
33
46
68
56
V.  ACTIV
480
1200
1440
1440
--SYNC--
INT(G)
NO
NO
NO
NO
EXT (H/V) /POLARITY
YES N/N
YES P/P
YES P/P
YES N/P
EXT (CS) /POLARITY
NO
NO
NO
NO
INT/NON INT
NON INT
NON INT
NON INT
NON INT
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Sony DHC-FL3 / GDM-C520 / GDM-C520K / HCD-FL3 Service Manual ▷ Download

  • DOWNLOAD Sony DHC-FL3 / GDM-C520 / GDM-C520K / HCD-FL3 Service Manual ↓ Size: 4.42 MB | Pages: 69 in PDF or view online for FREE
  • Here you can View online or download the Service Manual for the Sony DHC-FL3 / GDM-C520 / GDM-C520K / HCD-FL3 in PDF for free, which will help you to disassemble, recover, fix and repair Sony DHC-FL3 / GDM-C520 / GDM-C520K / HCD-FL3 Audio. Information contained in Sony DHC-FL3 / GDM-C520 / GDM-C520K / HCD-FL3 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.