Sony KV-2168KF7 Service Manual ▷ View online
MODEL
COMMANDER DEST. CHASSIS NO.
KV-2168KF7
RM-883
Vietnam SCC-K26S-A
SERVICE MANUAL
MODEL
COMMANDER DEST. CHASSIS NO.
TRINITRON
®
COLOR TV
BG-1S (D)
<REFINE>
CHASSIS
– 2 –
KV-2168KF7
RM-883
Note
SPECIFICATIONS
CAUTION
SHORT CIRCUIT THE ANODE OF THE PICTURE TUBE
AND THE ANODE CAP TO THE METAL CHASSIS, CRT
SHIELD, OR CARBON PAINTED ON THE CRT, AFTER
REMOVING THE ANODE.
AND THE ANODE CAP TO THE METAL CHASSIS, CRT
SHIELD, OR CARBON PAINTED ON THE CRT, AFTER
REMOVING THE ANODE.
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY SHADING AND MARK
!
ON THE SCHEMATIC DIAGRAMS, EXPLODED VIEWS
AND IN THE PARTS LIST ARE CRITICAL TO SAFE
OPERATION. REPLACE THESE COMPONENTS WITH
SONY PARTS WHOSE PART NUMBERS APPEAR AS
S H O W N I N T H I S M A N U A L O R I N S U P P L E M E N T S
PUBLISHED BY SONY.
AND IN THE PARTS LIST ARE CRITICAL TO SAFE
OPERATION. REPLACE THESE COMPONENTS WITH
SONY PARTS WHOSE PART NUMBERS APPEAR AS
S H O W N I N T H I S M A N U A L O R I N S U P P L E M E N T S
PUBLISHED BY SONY.
Power requirements
110-240 V AC, 50/60 Hz
Power consumption (W)
Indicated on the rear of the TV
Television system
B/G, D/K
Color system
PAL, PAL 60,NTSC4.43, NTSC3.58
Channel coverage
B/G
VHF: E2 to E12/UHF: E21 to E69/CATV: S01 to S03, S1 to S41
D/K
VHF: C1 to C12, R1 to R12/UHF: C13 to C57, R21 to R60/
CATV: S01 to S03, S1 to S41, Z1 to Z39
Audio output (speaker)
3W + 3W
Inputs
Antenna: 75 ohms
VIDEO IN jacks: phono jacks
Video: 1 Vp-p, 75 ohms
Audio: 500 mVrms, high impedance
Outputs
Headphone jack: minijack
MONITOR OUT jacks: phono jacks
Video: 1 Vp-p, 75 ohms
Audio: 500 mVrms
Picture tube
21 in.
Tube size (cm)
54
Measured diagonally
Screen size (cm)
51
Measured diagonally
Dimensions (w/h/d, mm)
600
×
459
×
474
Mass (kg)
24
Design and specifications are subject to change without notice.
– 3 –
KV-2168KF7
RM-883
TABLE OF CONTENTS
1. GENERAL..........................................................
4
2. DISASSEMBLY
2-1.
Rear Cover Removal ............................................... 11
2-2.
A Board Removal ................................................... 11
2-3.
Service Position ...................................................... 11
2-4.
Replacement of Control Button.............................. 11
2-5.
Demagnetization Coil and Picture Tube Removal . 12
3. SET-UP ADJUSTMENTS
3-1.
Beam Landing ......................................................... 13
3-2.
Convergence ............................................................ 14
3-3.
Focus Adjustment ................................................... 16
3-4.
G2 (Screen) and White Balance Adjustments ........ 16
4. SELF DIAGNOSIS FUNCTION .........................
17
5. CIRCUIT ADJUSTMENTS
5-1.
Adjustments with Commander ............................... 18
5-2.
Adjustment Method ................................................ 19
5-3.
A Board Adjustment after IC003 (Memory)
Replacement............................................................ 22
Replacement............................................................ 22
5-4.
Picture Distortion Adjustment ................................ 22
Section
Title
Page
Section
Title
Page
6. DIAGRAMS
6-1.
Block Diagram ........................................................ 23
6-2.
Circuit Boards Location ......................................... 26
6-3.
Schematic Diagrams and Printed Wiring Boards ... 26
(1)
Schematic Diagrams of A and A4 Boards .............. 31
(2)
Schematic Diagrams of A11, A12 and C Boards ... 35
6-4.
Semiconductors ....................................................... 41
7. EXPLODED VIEW
7-1.
Chassis .................................................................... 43
8. ELECTRICAL PARTS LIST ...............................
45
– 4 –
KV
-2168KF7
-2168KF7
RM-883
SECTION 1
GENERAL
The operating instructions mentioned here are partial abstracts from the
Operating Instructions Manual. The page numbers of the Oper ating
Instruction Manual remain as in the manual.
Operating Instructions Manual. The page numbers of the Oper ating
Instruction Manual remain as in the manual.
2
MONITOR
OUT
AUDIO
VIDEO
VIDEO
IN
3
2
1
3
2
1
TV SYSTEM
AUTO PROGR
B/G
I
D/K
M
TV SYSTEM
AUTO PROGR
B/G
D/K
TV SYSTEM