KV-PF21L70 - Sony TV Service Manual (repair manual)

Model: KV-PF21L70
Pages: 64
Size: 4.29 MB
Type: PDF
Document: Service Manual
Brand: Sony
Device: TV
File: kv-pf21l70.pdf
Date: 2018-11-20

Next: Sony KV-PF21L70 (serv.man2) Service Manual

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BG-3S
CHASSIS
REVISION HISTORY
NO.
SUFFIX
DATE
SUPP / CORR
DESCRIPTION
1.
-01
1999/7
_ _
1st Issue
2.
-02
2000/6
Supp-1
New Model Addition (page 
84
)
3.
-03
2008/4
Supp-2
Insert A Board Schematic Diagram  (page 
85
)
MODEL
KV-PF21L70
KV-PF21M40
KV-PF21M70
KV-PF21M70
KV-PF21P10
KV-PF21P40
KV-PF21P40
KV-PF21P41
KV-PF21Q70
PART NO. : 
9-965-749-03

KV-PF21L70
RM-952
ME
SCC-U30B-A
KV-PF21M40
RM-952
GE
SCC-U12N-A
KV-PF21M70
RM-952
E
SCC-U13E-A
KV-PF21M70
RM-952
ME
SCC-U30C-A
KV-PF21P10
RM-952
OCE
SCC-U24D-A
KV-PF21P40
RM-952
Singapore
SCC-U29B-A
KV-PF21P40
RM-952
Malaysia
SCC-U21C-A
KV-PF21P41
RM-952
Malaysia
SCC-U21E-A
KV-PF21Q70
RM-952
ME
SCC-U30A-A
MODEL
COMMANDER DEST. CHASSIS NO.
CHASSIS
TRINITRON 
®
 
COLOR TV
SERVICE MANUAL
BG-3S
Self Diagnosis
Supported model
MODEL
COMMANDER DEST.
CHASSIS NO.

– 2 –
KV-PF21L70/PF21M40/PF21M70/PF21P10
KV-PF21P40/PF21P41/PF21Q70
RM-952
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 SUPPLEMENTS
PUBLISHED BY SONY. CIRCUIT ADJUSTMENTS THAT ARE
CRITICAL TO SAFE OPERATION ARE IDENTIFIED IN THIS
MANUAL. FOLLOW THESE PROCEDURES WHENEVER CRITICAL
COMPONENTS ARE REPLACED OR IMPROPER OPERATION IS
SUSPECTED.
Note
Power requirements
110-240 V AC, 50/60 Hz
Except Malaysia and OCE
220-240V AC, 50/60Hz
For Malaysia and OCE
Power consumption (W)
Indicated on the rear of the TV
Television system
B/G, I, D/K, M
KV-PF21M40/PF21M70
B/G
Except KV-PF21M40/PF21M70
Color system
PAL, PAL60, SECAM, NTSC4.43, NTSC3.58
KV-PF21M70 (ME)/
KV-PF21M40/PF21M70(E)
PAL, PAL60, NTSC4.43, NTSC3.58 (AV IN)
KV-PF21P10/PF21P40/PF21P41
PAL, PAL60, SECAM, NTSC4.43, NTSC3.58 (AV IN)
KV-PF21L70
PAL, PAL60, SECAM, NTSC4.43
PF21Q70
Teletext language
English, Arabic, French
KV-PF21P41 only
Channel coverage
B/G
VHF : E2 to E12/ UHF : E21 to E69/ CATV :
S01 to S03, S1 to S41
VHF : 0 to 12, 5A, 9A
UHF : 28 to 69
CATV : S01 to S03, S1 to S41
Australia only
VHF : 1 to 11
UHF : 21 to 69
CATV : S01 to S03, S1 to S41
New Zealand only
I
UHF : B21 to B68/ CATV : S01 to S03, S1 to S41
KV-PF21M40/PF21M70
D/K
VHF : C1 to C12, R1 to R12/ UHF : C13 to C57, R21 to R60
CATV: Z1 to Z39, S01 to S03, S1 to S41
KV-PF21M40/PF21M70
M
VHF : A2 to A13/ UHF : A14 to A79/
CATV : A-8 to A-2, A to W+4, W+6 to W+84
KV-PF21M40/PF21M70
˘
˘
˘
˘
˘
(Antenna)
75-ohm external terinal
Audio output
3W
Number of terminal
(Video)
Input : 2
Output : 1
Phono jacks; 1 Vp-p, 75 ohms
(Audio)
Input : 2
Output : 1
Phono jacks; 500 mVrms
(Earphone)
Output : 1
Minijack
Picture tube
21 inch
Tube size (cm)
54
Measured diagonally
Screen size (cm)
51
Measured diagonally
Dimension (w/h/d, mm)
490 x 458 x 487
Mass (kg)
25
Design and specifications are subject to change without notice.
Ø

– 3 –
KV-PF21L70/PF21M40/PF21M70/PF21P10
KV-PF21P40/PF21P41/PF21Q70
RM-952
TABLE OF CONTENTS
Section
Title
Page
SELF DIAGNOSIS FUNCTION
................................
4
1. GENERAL ..........................................................
8
2. DISASSEMBLY
2-1.
Rear Cover Removal ................................................ 23
2-2.
Chassis Assy Removal ............................................. 23
2-3.
F Bracket Removal .................................................. 23
2-4.
Service Position ....................................................... 23
2-5.
Replacement of Parts ............................................... 24
2-5-1.
Replacement of Control Button .......................
24
2-5-2.
Replacement of Bar Control .............................
24
2-6.
Terminal Bracket Removal ...................................... 24
2-7.
V1 Board Removal .................................................. 24
2-8.
Degauss Coil Removal ............................................. 25
2-9.
Picture Tube Removal .............................................. 25
3. SET-UP ADJUSTMENTS
3-1.
Beam Landing .......................................................... 27
3-2.
Convergence ............................................................. 28
3-3.
Focus Adjustment .................................................... 30
3-4.
G2 (Screen) and White Balance Adjustments ......... 30
4. CIRCUIT ADJUSTMENTS
4-1.
Adjustments with Commander ................................ 31
4-2.
Adjustment Method ................................................. 32
4-3.
Picture Quality Adjustments .................................... 37
4-4.
A Board Adjustment After IC003 (Memory)
Replacement ............................................................. 37
4-5.
Picture Distortion Adjustment ................................. 38
Section
Title
Page
5. DIAGRAMS
5-1
Block Diagram ......................................................... 41
5-2
Frame Schematic Diagram ...................................... 44
5-3
Circuit Boards Location .......................................... 46
5-4
Schematic Diagrams and Printed Wiring Boards ... 47
(1)
Schematic Diagram of A(1/2) Board ....................... 49
(2)
Scheamtic Diagram of A(2/2) Board ....................... 53
(3)
Schematic Diagrams of C3 and F Boards ............... 61
(4)
Schematic Diagram of V1 Board ............................ 65
5-5
Semicondutors ......................................................... 68
6. EXPLODED VIEW
6-1.
Chassis ..................................................................... 71
7. ELECTRICAL PARTS LIST
...................................
73

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Here you can read online and download Sony KV-PF21L70 Service Manual in PDF. KV-PF21L70 service manual will guide through the process and help you recover, restore, fix, disassemble and repair Sony KV-PF21L70 TV. Information contained in service manuals typically includes schematics / circuit diagrams, wiring diagrams, block diagrams, printed wiring boards, exploded views, parts list, disassembly / assembly, pcb.

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