Datenblatt-pdf.com


DS24424 Schematic ( PDF Datasheet ) - Sanyo

Teilenummer DS24424
Beschreibung Remote Control Color Television SERVICE MANUAL
Hersteller Sanyo
Logo Sanyo Logo 




Gesamt 30 Seiten
DS24424 Datasheet, Funktion
SERVICE MANUAL
Remote Control Color
Television
FILE NO.
DS24424 (U.S.A.)
(CANADA)
ORIGINAL VERSION
Chassis No. 24424-00
AS
Contents
Safety Instructions . . . . . . . . . . . . . . . . . . 2
Service Adjustments . . . . . . . . . . . . . 3 - 10
Service Hints . . . . . . . . . . . . . . . . . . . . . . 11
Purity and Convergence . . . . . . . . . 12 - 13
Mechanical Disassemblies. . . . . . . . . . . 14
Chassis Electrical Parts List . . . . . . 15 - 22
Cabinet Parts List . . . . . . . . . . . . . . . . . . 23
Component and Test Point
Locations . . . . . . . . . . . . . . . . . . . 24 - 27
Schematic Insert . . . . . . . . . . . . . . . 29 - 36
Schematic Notes . . . . . . . . . . . . . . . . . 29
Pin Layouts . . . . . . . . . . . . . . . . . . . . . 29
Capacitor and Resistor Codes . . . . . . 29
Block Diagram . . . . . . . . . . . . . . . 30 - 31
Voltage Charts . . . . . . . . . . . . . . . 30 - 32
Waveforms. . . . . . . . . . . . . . . . . . . . . . 32
Schematic Diagrams . . . . . . . . . . 33 - 36
DS24424, H2BAM, PRODUCT CODE 111370380
NOTE: Match the Chassis No. on
the unit’s back cover with
the Chassis No. in the
Service Manual.
If the Original Version
Service Manual Chassis
No. does not match the
unit’s, additional Service
Literature is required. You
must refer to “Notices” to the
Original Service Manual
prior to servicing the unit.
Specifications
Power Rating . . . . . . . . . . . . . . . . . . . . . 120V, 60Hz
78W (Avg), 2.0A (Max)
Antenna Input Impedance . . . . . . . . . . . . . . . . . 75
UHF/VHF/CATV
Receiving Channel . . . . . . . . . . . . . . . . 2 - 13 (VHF),
14 - 69 (UHF),
01, 14-94, 95-125 (CATV)
Remote Ready . . . . . . . . . . 33 Key Remote Control
Sound Output . . . . . . . . . . . . . . . . . . . . . . 1.0 W/CH
Intermediate Frequency
Picture IF Carrier . . . . . . . . . . . . . . . . . . 45.75MHz
Sound IF Carrier . . . . . . . . . . . . . . . . . . 41.25MHz
Color Sub Carrier . . . . . . . . . . . . . . . . . 42.17MHz
Picture Tube . . . . . . . . . . . . . . . . . A59QDF891X(ST)
Semiconductors
Integrated Circuits. . . . . . . . . . . . . . . . . . . . . . . . 8
Transistors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Except within Tuner and RC Pre-Amp.
Cabinet Dimensions
Width . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 677mm
Height . . . . . . . . . . . . . . . . . . . . . . . . . . . . 524mm
Depth . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 480mm
REFERENCE No. SM780092






DS24424 Datasheet, Funktion
SERVICE ADJUSTMENTS (Cont.)
Table 1. ON-SCREEN SERVICE MENU (Continued)
No.
TITLE
INITIAL REFERENCE INITIAL SETUP INITIAL SETUP
DATA HEX
DATA HEX DATA BINARY
FUNCTION
6C ECB4ECT
33
54*
01010100
E/W Corner Bottom(7~4) E/W Corner Top (3~0)
6D EWS7ETS3HSC
84
84
10000100
E/W Correction Sw(7) E/W Test (5~3) H Size Comp (2~0)
6E
↓ ↓ ↓ Not Used
6F
↓ ↓ ↓ Not Used
80 ATT
07
07
00000111
Attenuation -MTS Input Level (3~0)
81 WDB
20
20
00100000
Wide Band - Low Separation (5~0)
82 SPC
20
20
00100000
Spectral - High Separation (5~3)
83 OPT
80
A0*
10100000
Surround (7) Aspect Ratio (5)
84 OP2
00
20*
00100000
V Guide(7)
85 FLR
00
00
00000000
RF Filter System (2~0)
86 CBR
20
00*
00000000
RF C Bypass (5)
87 CDR
00
00
00000000
RF Count Down Mode (0)
88 CGR
40
40
01000000
RF Coring Gain (6)
89 AFR
00
00
00000000
RF AFC Gain & Gate (6)
8A ROV
0C
0C
00001100
RF Over Shoot Adjust (3~2)
8B RPR
00
00
00000000
RF Pre Shoot Adjust (5~4)
8C CBT
00
08*
00001000
RF C BPF Test (4~3)
8D HR
13
24*
00100100
OSD H Display Position (7~0)
8E SBO
03
05*
00000101
Sub Bright Offset (5~0)
8F DFL
02
02
00000010
YUV Filter System (2~0)
90 DCN
00
00
00000000
YUV Sub Contrast (6~0)
91 DBR
00
00
00000000
YUV Sub Bright (6~0)
92 DCL
00
00
00000000
YUV Sub Color (6~0)
93 DTN
00
00
00000000
YUV Sub Tint (6~0)
94 DSH
00
00
00000000
YUV Sub Sharpness (6~0)
95 DCG
00
00
00000000
YUV Sub Coring (6)
96 DVG
00
00
00000000
YUV Sub VM Gain (5~0)
97 DHS
00
00
00000000
YUV Sub E/W DC (5~0)
98 DRY
06
0B*
00001011
YUV R-Y Offset (3~0)
99 DBY
70
10*
00010000
YUV B-Y Offset (7~4)
9A DYA
00
00
00000000
YUV APF (6)
9B ECN
E0
E0
11100000
16:9 Sub Contrast (6~0)
9C EBR
00
00
00000000
16:9 Sub Bright (6~0)
9D ECL
00
00
00000000
16:9 Sub Color (6~0)
9E ETN
00
00
00000000
16:9 Sub Tint (6~0)
9F EVS
D4
D4
11010100
16:9 Sub V Size (6~0)
A0 EVP
00
00
00000000
16:9 Sub V Position (3~0)
A1 EEA
F8
F6*
11110110
16:9 Sub E/W Amp (5~0)
A2 EET
03
03
00000011
16:9 Sub E/W Tilt (5~0)
A3 EEP
FF
FF
11111111
16:9 Sub E/W Corner Top (3~0)
A4 EEB
00
00
00000000
16:9 Sub E/W Corner Bottom (7~4)
A5 EUV
00
00
00000000
16:9 Sub V Linearity (4~0)
A6 B16
00
00
00000000
16:9 ABL VTH Sw (5)
A7 EVB
02
60*
01100000
16:9 V Blanking SW (6~5)
A8 DRV
R40
R40
01000000
Red Drive Adjustment
(See Note 1.)
R40
R40
01000000
Blue Drive Adjustment
(See Note 1.)
-
-
- Red Bias Adjustment
(See Note 2.)
-
-
-
Green Bias Adjustment
(See Note 2.)
– --
Blue Bias Adjustment
(See Note 2.)
—6—

6 Page









DS24424 pdf, datenblatt
PURITY AND CONVERGENCE ADJUSTMENTS
CAUTION: The Purity and Convergence adjustments have been made at the factory. Readjustments should be made
only after the picture tube or deflection yoke is replaced. Follow the steps below for necessary readjustments.
PURITY ADJUSTMENTS
1. When replacing picture tube or deflection yoke, mount
deflection yoke and purity and convergence magnets
assembly properly. See Figure 1. Position the picture
tube facing east or west. Demagnetize the picture tube
and receiver using an external degaussing coil. Set
receiver to Service Menu NO. A9 (no vertical sweep)
while degaussing.
2. Place the yoke on tube neck fully forward against glass.
3. Place the CPM on the tube neck aligning the center of
the purity magnet tabs over center of Focus Gap (G3 & G4).
See Figure 2.
4. Connect a color-bar generator to the antenna terminal.
Switch the generator to a white field. Move yoke back-
ward on the neck until a uniform white field is obtained.
5. Allow 30 minutes warm up on a blank white field (high
intensity grayscale).
Note: If white field cannot be obtained check Grayscale
Adjustments on page 9.
6. Reset the picture controls to the Auto levels. Select a green
raster, either with the signal generator or by adjusting the
bias controls. If a signal generator is used for this step skip
to Step 11. If the bias controls will be used go to step 7.
7. Adjust Service Menu NO. 49 RB (Red Bias), NO. 4A GB
(Green Bias), and NO. 4B BB (Blue Bias) data each to 00.
8. Select Service Menu NO. A9 (no vertical sweep).
9. Adjust the Screen Control counterclockwise until the
horizontal scan line is no longer visible.
10. Select Service Menu NO. 4A GB (Green Bias) and
increase the data to produce a green raster. If retrace
lines appear reduce screen control slightly.
11. Pull yoke back on tube neck to obtain three-color raster
(blue, green and red).
12. Adjust the angle between the two purity magnet tabs to
center the vertical green belt in the picture tube. Do not
rotate tabs. See Figure 3.
13. Slowly slide the deflection yoke forward until a uniform
green screen is obtained.
14. Check the purity of the red and blue screens for unifor-
mity. Turn off other colors to check (use bias controls or
use generator). If necessary, readjust the yoke position
until all screens are pure.
15. If bias controls and screen control were used to set puri-
ty reset Grayscale and Bright Level. Refer to Grayscale
Adjustment on page 9 and Brightness Level Adjustment
on page 9.
16. Confirm that the yoke is not tilted. Tighten the yoke
mounting screw. Adjust convergence next.
DEFLECTION YOKE
RUBBER
WEDGE
DEFLECTION YOKE
MOUNTING SCREW
Figure 1. Deflection Yoke Movement
SIX-POLE
MAGNET TABS
PURITY
MAGNET
TABS
34
FOUR-POLE
MAGNET TABS
ANGLE
OF TABS
FOCUS GAP
(G3-G4)
Figure 2. Purity and Convergence Magnets
ANGLE OF MAGNET TABS
MAGNET TABS
— 12 —
Figure 3. Adjusting Magnet

12 Page





SeitenGesamt 30 Seiten
PDF Download[ DS24424 Schematic.PDF ]

Link teilen




Besondere Datenblatt

TeilenummerBeschreibungHersteller
DS24424Remote Control Color Television SERVICE MANUALSanyo
Sanyo
DS24424Color TV Owner ManualSanyo
Sanyo

TeilenummerBeschreibungHersteller
CD40175BC

Hex D-Type Flip-Flop / Quad D-Type Flip-Flop.

Fairchild Semiconductor
Fairchild Semiconductor
KTD1146

EPITAXIAL PLANAR NPN TRANSISTOR.

KEC
KEC


www.Datenblatt-PDF.com       |      2020       |      Kontakt     |      Suche