Read Sony KV-J21MF1AK Service Manual online
MODEL
COMMANDER DEST.
CHASSIS NO.
KV-J21MF1AK
RM-883
India
SCC-K67K-A
KV-J21MF3
RM-883
India
SCC-K76F-A
KV-J21MN1AK
RM-883
India
SCC-K67L-A
KV-J21PF1
RM-883
India
SCC-K67G-A
SERVICE MANUAL
MODEL
COMMANDER DEST. CHASSIS NO.
CHASSIS
TRINITRON
®
COLOR TV
BG-1S (D)
– 2 –
KV-J21MF1AK/J21MF3
KV-J21MN1AK/J21PF1
KV-J21MN1AK/J21PF1
RM-883
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.
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 SHOWN IN THIS MANUAL OR IN SUP-
PLEMENTS PUBLISHED BY SONY.
PARTS LIST ARE CRITICAL TO SAFE OPERATION. REPLACE
THESE COMPONENTS WITH SONY PARTS WHOSE PART
NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUP-
PLEMENTS PUBLISHED BY SONY.
Note
Power requirements
110-240 V AC, 50/60 Hz
Power consumption (W)
Indicated on the rear of the TV
Television system
B/G, I, D/K, M
Except for KV-J21PF1
B/G
KV-J21PF1
Color system
PAL, PAL 60, SECAM, NTSC4.43, NTSC3.58
Except for KV-J21PF1
PAL, PAL 60,NTSC4.43, NTSC3.58 (AV IN)
KV-J21PF1
Stereo system
NICAM Stereo B/G, I; A2 Stereo (German) B/G
KV-J21MN1AK only
Channel coverage
B/G
VHF: E2 to E12/UHF: E21 to E69/CATV: S01 to S03, S1 to S41
I
UHF: B21 to B68/CATV: S01 to S03, S1 to S41
Except for KV-J21PF1
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
Except for KV-J21PF1
M
VHF: A2 to A13/UHF: A14 to A79/
CATV: A-8 to A-2, A to W+ 4, W+ 6 to W+ 84
Except for KV-J21PF1
Audio output (speaker)
3W
+
3W
KV-J21MF3/J21PF1
3W
+
3W
+
7W (3D WOOFER)
KV-J21MF1AK/J21MN1AK
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)
610
×
470
×
488
KV-J21MF3/J21PF1
610
×
510
×
488
KV-J21MF1AK/J21MN1AK
Mass (kg)
23
KV-J21MF3/J21PF1
25
KV-J21MF1AK/J21MN1AK
Design and specifications are subject to change without notice.
– 3 –
KV-J21MF1AK/J21MF3
KV-J21MN1AK/J21PF1
KV-J21MN1AK/J21PF1
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 Parts ...........................................
12
2-5.
Demagnetization Coil Removal ..........................
12
2-6.
Picture Tube Removal ..........................................
13
3. SET-UP ADJUSTMENTS
3-1.
Beam Landing ......................................................
14
3-2.
Convergence .........................................................
15
3-3.
Focus Adjustment ................................................
17
3-4.
G2 (Screen) and White Balance Adjustments .....
17
4. SELF DIAGNOSIS FUNCTION
............................
18
5. CIRCUIT ADJUSTMENTS
5-1.
Adjustments with Commander ............................
19
5-2.
Adjustment Method .............................................
20
5-3.
A Board Adjustment after IC003 (Memory)
Replacement .........................................................
Replacement .........................................................
25
5-4.
Picture Distortion Adjustment .............................
25
6. DIAGRAMS
6-1.
Block Diagram ......................................................
27
6-2.
Circuit Boards Location .......................................
31
6-3.
Schematic Diagrams and Printed Wiring Boards .
31
(1)
Schematic Diagrams of A3, C and K1 Boards .....
35
(2)
Schematic Diagram of A Board ............................
43
(3)
Schematic Diagrams of A11, A12, K and
VM Boards ............................................................
VM Boards ............................................................
48
6-4.
Semiconductors .....................................................
57
7. EXPLODED VIEW
7-1.
Chassis ..................................................................
59
7-2.
3D Speaker (KV-J21MF1AK/J21MN1AK only)
61
8. ELECTRICAL PARTS LIST
....................................
62
Section
Title
Page
Section
Title
Page
– 4 –
KV
-J21MF1AK/J21MF3
-J21MF1AK/J21MF3
KV
-J21MN1AK/J21PF1
-J21MN1AK/J21PF1
RM-883
SECTION 1
GENERAL
The operating instructions mentioned here are partial abstracts from the
Operating Instructions Manual. The page numbers of the Operating
Instruction Manual remain as in this manual.
Operating Instructions Manual. The page numbers of the Operating
Instruction Manual remain as in this manual.
2
3
p
KV-J21MF1AK/J21MN1AK
B/G
I
D/K
M
TV SYSTEM
AUTO PROGR
TV SYSTEM
AUTO PROGR
p
KV-J21MF1AK/J21MN1AK/
J21MF3
J21MF3
2
1