MODEL
COMMANDER DEST.
CHASSIS NO.
KV-J14KD5
RM-870 Vietnam
SCC-K26N-A
KV-J14KF5
RM-870 Vietnam
SCC-K26P-A
SERVICE MANUAL
MODEL
COMMANDER DEST. CHASSIS NO.
CHASSIS
TRINITRON ® COLOR TV
BG-1S (D)
2
KV-J14KD5/J14KF5
RM-870
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.
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.
Note
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 (AV IN)
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
KV-J14KD5
3W + 3W
KV-J14KF5
Inputs
Antenna: 75 ohms
VIDEO IN jacks: phono jacks
Video: 1 Vp-p, 75 ohms
Audio: 500 mVrms, high impedance
Outputs
Earphone jack: minijack
KV-J14KD5
Headphone jack: minijack
KV-J14KF5
MONITOR OUT jacks: phono jacks
Video: 1 Vp-p, 75 ohms
Audio: 500 mVrms
Picture tube
14 in.
Tube size (cm)
37
Measured diagonally
Screen size (cm)
34
Measured diagonally
Dimensions (w/h/d, mm) 456
× 343 × 416
Mass (kg)
12
Design and specifications are subject to change without notice.
3
KV-J14KD5/J14KF5
RM-870
TABLE OF CONTENTS
1. GENERAL ....................................................................
4
2. DISASSEMBLY
2-1.
Rear Cover Removal ...........................................
9
2-2.
A Board Removal ................................................
9
2-3.
Service Position ...................................................
9
2-4.
Replacement of Parts ...........................................
10
2-5.
Demagnetization Coil Removal ..........................
10
2-6.
Picture Tube Removal .........................................
11
3. SET-UP ADJUSTMENTS
3-1.
Beam Landing ......................................................
12
3-2.
Convergence ........................................................
13
3-3.
Focus Adjustment ................................................
15
3-4.
G2 (Screen) and White Balance Adjustments .....
15
4. SELF DIAGNOSIS FUNCTION ............................
16
5. CIRCUIT ADJUSTMENTS
5-1.
Adjustments with Commander ............................
17
5-2.
Adjustment Method .............................................
18
5-3.
A Board Adjustment after IC003 (Memory)
Replacement .........................................................
21
5-4.
Picture Distortion Adjustment .............................
21
6. DIAGRAMS
6-1.
Block Diagram ......................................................
23
6-2.
Circuit Boards Location .......................................
25
6-3.
Schematic Diagrams and Printed Wiring Boards
25
(1)
Schematic Diagram of A Board ............................
29
(2)
Schematic Diagrams of A11, A12 and C Boards .
33
6-4.
Semiconductors .....................................................
37
7. EXPLODED VIEW
7-1.
Chassis ..................................................................
39
8. ELECTRICAL PARTS LIST ...................................
41
Section
Title
Page
Section
Title
Page
4
KV
-J14KD5/J14KF5
RM-870
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.
2
MONITOR
OUT
AUDIO
VIDEO
VIDEO
IN
2
3
1
3
TV SYSTEM
AUTO PROGR
B/G
I
D/K
M
TV SYSTEM
AUTO PROGR
B/G
D/K
TV SYSTEM
5
KV
-J14KD5/J14KF5
RM-870
Getting Started
5-EN
Connecting optional equipment
You can connect optional audio/video equipment to your TV such as a VCR, multi disc player, camcorder, video
game or stereo system.
Connecting video equipment using video input jacks
p
KV-J14KD5
p
KV-J14KF5
When using the video input jacks
Do not connect video equipment to the video input jacks at the front and the rear of your TV simultaneously; otherwise the picture will
not be displayed properly on the screen.
VIDEO
L(MONO)
VIDEO INPUT
AUDIO
R
Front of TV
Camcorder
to video and
audio outputs
p
KV-J14KF5
to antenna
output
VIDEO IN
Rear of TV
VIDEO IN
VIDEO
AUDIO
R
L (MONO)
VIDEO
IN
MONITOR
OUT
to antenna socket
VIDEO
AUDIO
VIDEO
IN
MONITOR
OUT
: Signal flow
to antenna socket
to antenna
output
VCR
VCR
to video
and audio
outputs
to video
and audio
outputs
Rear of TV
When connecting a monaural VCR
Connect the yellow plug to VIDEO and the black plug to AUDIO-L (MONO).
p
KV-J14KD5
Front of TV
VIDEO
VIDEO INPUT
AUDIO
Camcorder
to video and
audio outputs
: Signal flow
: Signal flow
: Signal flow
Getting Started
4-EN
Connections
Connecting a VHF antenna or a combination VHF/UHF antenna
-- 75-ohm coaxial cable (round)
Attach an optional IEC antenna connector to the 75-ohm coaxial cable.
Plug the connector into the
(antenna) socket at the rear of the TV.
Getting Started
or
On a wall
Rear of TV
Rear of TV
Connecting an indoor antenna
Note
· You are advised to use an outdoor antenna for better reception.
MONITOR
OUT
AUDIO
VIDEO
VIDEO
IN
2
3
1