Sanyo CT21KS2 User Manual

SERVICE MANUAL Colour Television
Specifications
Power Source . . . . . . . .AC127 - 240V, 50/60Hz.
Colour System . . . . . . . .PAL, NTSC4.43, NTSC, PAL 60Hz
Television System . . . . .B/G
Channel Coverage . . . . .VHF: E2-E12, R1-R12, K1-K9, J1-J12, A2-A13
UHF: 21-69, A14-A69, J13-J62
CATV: S1-S41, X, Y, Z, Z+1, Z+2
Video IF . . . . . . . . . . . . . .38.0 MHz
Aerial Input Impedance .75Ω
Ext. Terminals
Video inputs: Phono jack  2 (1.0Vp
- p, impedance 75Ω)
DVD Input: Component Video Jack-Y  1 (1.0Vp-p, impedance 75Ω)
Component Video Jack CB/CR  1 (0.7Vp-p, impedance 75Ω)
Audio inputs: Phono jack (L/R)  2 (436mVrms, impedance more than 40KΩ)
Video monitor output: Phono jack  1 (1.0Vp
- p, 75Ω)
Audio monitor outputs: Phono jack(L/R)  1(436mVrms, Impedance less than
600Ω)
Speaker . . . . . . . . . . . . . . 5 cm  9 cm  2 pcs.
Sound Output (RMS) . . . 5W + 5W
Dimensions . . . . . . . . . . . 580 (W)  465 (H)  326 (D)mm
Weight . . . . . . . . . . . . . . . approx. 19.7 Kg
Specifications subject to change without notice
Original Version
Chassis Series: FC8-A
BE4B
FILE NO.
Model No. CT21KS2
Service Ref. No. CT21KS2-00
(Thailand)
Give complete “SERVICE REF. NO.” for parts
order or servicing. It is shown on the rating plate
at the cabinet back of the unit.
This T.V. receiver will not work properly in
foreign countries where the television
transmission system and power source dif-
fer from the design specifications. Refer to
the specification table.
Product Code: 113016101
REFERENCE NO. SM3010349
1
2
3
4
56
7
8
9
0
TV/AV
TIMER
x
-/--
SWAP
CH SCAN
MENU
BASS
SOUND
S. SYS
SURROUND
PICTURE
CH
CH
A B
.
PP
JXPSC
M
E
N
U
T
V
/
A
V
P
O
W
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+
SM_21-BE4B (FC8-A) IDN 6/24/08 10:53 AM Page 1

Sanyo CT21KS2 Specifications

General

Brand	Sanyo
Model	CT21KS2
Category	TV
Language	English

Summary

Safety Notice

SAFETY PRECAUTIONS

X-RADIATION PRECAUTION

PRODUCT SAFETY NOTICE

Service Adjustments with Replacing Memory IC(IC801)

[1] Initializing Procedure

Procedure to initialize the memory IC by performing specific button sequences on the TV set.

[2] Required Service Adjustments

List of essential service adjustments needed after replacing the memory IC, referencing specific item numbers.

Entering and Performing Service Mode Adjustments

[Entering to Service Mode]

Steps to access the TV's service mode using the remote control and TV set buttons.

Adjust data value by pressing the VOLUME + or - button

Method for adjusting data values within the service mode using volume control buttons.

Service Mode Adjustments: Grey Scale

Items 32 - 39 GREY SCALE

Guide for adjusting grey scale parameters using specific service menu items.

Picture Quality Adjustments

Specific Service Mode Adjustments

Item 91 [ALIGN RF AGC THRESHOLD] RF AGC

Procedure for adjusting the RF AGC threshold for optimal signal reception.

Vertical Adjustments (Items 5, 7, 17, 19)

Procedures for aligning sync, size, linearity, and S-correction for vertical picture display.

Service Adjustments: Voltage and Focus

B-VOLTAGE SUPPLY CHECKING

Procedure to check and adjust the B-voltage supply using VR631.

HIGH VOLTAGE CHECK

Steps to measure high voltage on the picture tube and checks for horizontal circuit.

FOCUS ADJUSTMENT

Procedure to adjust the focus control on the FBT for the best picture focus.

Special Function Settings

Purity and Convergence Adjustment

PURITY ADJUSTMENT

Procedure to adjust purity for correct color display on the screen.

CENTRE CONVERGENCE ADJUSTMENT

Steps to align convergence of Red, Green, and Blue guns in the center screen.

OUTER AREA CONVERGENCE ADJUSTMENT

Protection Circuit

Releasing the protective circuit and restoring power supply

Component Locations: Main Board (Parts Side)

Component Locations: Main Board (Solder Side)

Component Locations: CRT Board

Voltages and Waveforms Charts: Main Board

Main Board Transistor Voltages

IC Voltages

Waveform Charts

Voltages and Waveforms Charts: CRT Board

CRT Board Transistor Voltages

Waveforms