KE-MV42A1, KE-MV42M1 - Sony TV Service Manual (repair manual)

ke-mv42a1, ke-mv42m1 service manual
Model
KE-MV42A1 KE-MV42M1
Pages
95
Size
9.98 MB
Type
PDF
Document
Service Manual
Brand
Device
TV
File
ke-mv42a1-ke-mv42m1.pdf
Date

Read Sony KE-MV42A1 / KE-MV42M1 Service Manual online

SERVICE MANUAL
SPECIFICATIONS
KE-MV42A1/MV42M1
Plasma TV
China Model
Hong Kong Model
Power requirements
110 – 240 V AC, 50/60 Hz
220 V AC, 50 Hz
KE-MV42A1
KE-MV42M1
Power consumption (W)
Indicated on the rear of the TV.
Television system
B/G, I, D/K
Color system
PAL, PAL 60, SECAM, NTSC4.43, NTSC3.58
Stereo/Bilingual system
NICAM Stereo/Bilingual B/G, I, D/K;
A2 Stereo/Bilingual (German) B/G
Channel coverage
VHF : E2 to E12 / UHF : E21 to E69 /  
CATV : S01 to S03, S1 to S41
VHF : E2 to E12 / UHF : E21 to E69 /  
CATV : S01 to S03, S1 to S41
VHF : 0 to 12, 5A, 19A / 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)
B/G
I
UHF : B21 to B69 / CATV : S01 to S03,  S1 to S41
D/K
VHF : C1 to C12, R1 to R12 / UHF : C13 to C57, R21 to R69 /
CATV : S01 to S03, S1 to S41, Z1 to Z39
8
 VHF/UHF (Antenna)
75-ohm external terminal
Audio output (Speaker)
10 W + 10 W
8 W + 8 W
AT2 
CHASSIS
KE-MV42A1/MV42M1 (E)     2
Design and specifications are subject to change without notice.
Number of terminal
 VIDEO (Video)
Input: 3  Output: 1
Phono jacks; 1 Vp-p, 75 ohms
9
 AUDIO (Audio)
Input: 5  Output: 1
Phono jacks; 500 mVrms
 S VIDEO (S Video)
Input: 2
Y: 1 Vp-p, 75 ohms,
unbalanced, sync negative
C: 0.286 Vp-p, 75 ohms
 COMPONENT 
VIDEO IN (Component 
Video)
 
Input: 2
Phono jacks
Y: 1 Vp-p, 75 ohms, sync negative
P
B
/C
B
: 0.7 Vp-p, 75 ohms
P
R
/C
R
: 0.7 Vp-p, 75 ohms
i
 (Headphones)
Output: 1
Stereo minijack
Display resolution
852 pixels 
× 480 pixels
Screen size
42 inches
Dimensions (w/h/d, mm)
1,075 
× 826 × 312 (with stand) ; 1,075 × 750 × 110 (without stand)
Mass (kg)
45 kg (with stand) ; 39.5 kg (without stand)
KE-MV42A1/MV42M1 (E)     3
SAFETY CHECK-OUT
After correcting the original service problem, perform the
following safety checks before releasing the set to the customer:
1. Check the area of your repair for unsoldered or poorly-sol-
dered connections. Check the entire board surface for solder
splashes and bridges.
2. Check the interboard wiring to ensure that no wires are
“pinched” or contact high-wattage resistors.
3. Check that all control knobs, shields, covers, ground straps,
and mounting hardware have been replaced. Be absolutely cer-
tain that you have replaced all the insulators.
4. Look for unauthorized replacement parts, particularly transis-
tors, that were installed during a previous repair. Point them
out to the customer and recommend their replacement.
5. Look for parts which, though functioning, show obvious signs
of deterioration. Point them out to the customer and recom-
mend their replacement.
6. Check the line cords for cracks and abrasion. Recommend the
replacement of any such line cord to the customer.
7. Check the antenna terminals, metal trim, “metallized” knobs,
screws, and all other exposed metal parts for AC Leakage.
Check leakage as described right.
LEAKAGE  TEST
The AC leakage from any exposed metal part to earth ground and
from all exposed metal parts to any exposed metal part having a
return to chassis, must not exceed 0.5 mA (500 microamperes).
Leakage current can be measured by any one of three methods.
1. A commercial leakage tester, such as the Simpson 229 or RCA
WT-540A. Follow the manufacturers’ instructions to use these
instruments.
2. A battery-operated AC milliammeter. The Data Precision 245
digital multimeter is suitable for this job.
3. Measuring the voltage drop across a resistor by means of a
VOM or battery-operated AC voltmeter. The “limit” indica-
tion is 0.75 V, so analog meters must have an accurate low-
voltage scale. The Simpson 250 and Sanwa SH-63Trd are ex-
amples of a passive VOMs that are suitable. Nearly all battery
operated digital multimeters that have a 2 V AC range are suit-
able.  (See Fig. A)
Fig. A. Using an AC voltmeter to check AC leakage.
1.5 k
0.15 
µ
F
AC
Voltmeter
(0.75 V)
To Exposed Metal
Parts on Set
Earth Ground
WARNING!!
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY SHADING AND MARK 
!
ON THE SCHEMATIC DIAGRAMS, EXPLODED VIEWS
AND IN THE PARTS LIST ARE CRITICAL FOR SAFE
OPERATION. REPLACE THESE COMPONENTS WITH
SONY PARTS WHOSE PART NUMBERS APPEAR AS
SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUB-
LISHED BY SONY. CIRCUIT ADJUSTMENTS THAT ARE
CRITICAL FOR SAFE OPERATION ARE IDENTIFIED IN
THIS MANUAL. FOLLOW THESE PROCEDURES WHEN-
EVER CRITICAL COMPONENTS ARE REPLACED OR
IMPROPER OPERATION IS SUSPECTED.
AVERTISSEMENT!!
ATTENTION AUX COMPOSANTS RELATIFS À LA
SÉCURITÉ!!
LES COMPOSANTS IDENTIFIÉS PAR UNE TRAME ET
UNE MARQUE ! SONT CRITIQUES POUR LA
SÉCURITÉ. NE LES REMPLACER QUE PAR UNE
PIÈCE PORTANT LE NUMÉRO SPECIFIÉ. LES
RÉGLAGES DE CIRCUIT DONT L’IMPORTANCE EST
CRITIQUE POUR LA SÉCURITÉ DU
FONCTIONNEMENT SONT IDENTIFIÉS DANS LE
PRÉSENT MANUEL.  SUIVRE CES PROCÉDURES
LORS DE CHAQUE REMPLACEMENT DE
COMPOSANTS CRITIQUES, OU LORSQU’UN MAUVAIS
FONCTIONNEMENT EST SUSPECTÉ.
KE-MV42A1/MV42M1 (E)     4
TABLE OF CONTENTS
1. DISASSEMBLY ............................................ 1-1
1-1.
STAND AND COVER REMOVAL ................. 1-1
1-2.
MAIN SHIELD REMOVAL ............................. 1-1
1-3.
J AND UG BOARDS REMOVAL .................... 1-2
1-4.
AE AND BP BOARDS REMOVAL ................. 1-2
1-5.
F AND G2 BOARDS REMOVAL .................... 1-3
1-6.
G1 BOARD REMOVAL ................................... 1-3
1-7.
PDP PANEL REMOVAL .................................. 1-4
1-8.
H1 AND H3 BOARDS REMOVAL ................. 1-5
1-9.
H2 BOARD REMOVAL ................................... 1-5
2. ADJUSTMENTS ........................................... 2-1
2-1.
WORKING CONDITION ................................. 2-1
2-2.
ADJUSTMENT OF SIGNAL LEVEL .............. 2-1
2-2-1. Check AD (2163 case) calibration
registration items ............................................ 2-1
2-2-2.  Y signal  AD calibration of 2163 decode ......... 2-1
2-2-3. C signal  AD calibration of 2163 decode .......... 2-1
2-2-4. Check AD (CCP2 case) calibration
registration items ................................................ 2-1
2-2-5. Y signal  AD calibration of CCP2 decode .... 2-2
2-2-6. C signal  AD calibration of CCP2 decode .... 2-2
2-2-7. Check AD (Component case) calibration
registration items ............................................ 2-2
2-2-8. Y signal  AD calibration of component input 2-2
2-2-9. C signal  AD calibration of componet input . 2-2
2-3.
WHITE BALANCE ADJUSTMENT ................ 2-3
2-3-1. White balance of Color temperature “Cool” .... 2-3
2-3-2. White balance of Color temperature “Neutral”
2-3
2-3-3. White balance of Color temperature “Warm” .. 2-3
3. DIAGRAMS ................................................... 3-1
3-1.
BLOCK DIAGRAMS ........................................ 3-1
(1)
AE BOARD ................................................... 3-1
(2)
BP, H1, H2 AND J BOARDS ....................... 3-2
(3)
H3 AND UG BOARDS ................................. 3-3
(4)
F AND G1 BOARDS ..................................... 3-4
(5)
G2 BOARD .................................................... 3-5
3-2.
FRAME DIAGRAMS ........................................ 3-6
3-3.
CIRCUIT BOARDS LOCATION ..................... 3-7
3-4.
SCHEMATIC  DIAGRAMS  AND  PRINTED
 WIRING  BOARDS .......................................... 3-7
(1)
Schematic Diagrams of AE Board ................ 3-8
(2)
Schematic Diagrams of BP Board ................. 3-14
(3)
Schematic Diagram of F Board ..................... 3-21
(4)
Schematic Diagram  of G1 Board ................. 3-22
(5)
Schematic Diagram of G2 Board .................. 3-24
(6)
Schematic Diagram of H1 and H2 Boards .... 3-26
(7)
Schematic Diagram  of H3 and J Boards ...... 3-27
(8)
Schematic Diagrams of UG Board ................ 3-28
3-5.
SEMICONDUCTORS ....................................... 3-32
4. EXPLODED VIEWS ...................................... 4-1
4-1.
REAR COVER AND STAND ........................... 4-2
4-2.
CHASSIS-1 ........................................................ 4-3
4-3.
CHASSIS-2 ........................................................ 4-4
4-4.
BEZEL ASSY .................................................... 4-5
4-5.
PACKING MATERIALS .................................. 4-6
5.  ELECTRICAL PARTS LIST ........................ 5-1
Page of 95
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Here you can read online and download Sony KE-MV42A1 / KE-MV42M1 Service Manual in PDF. KE-MV42A1 / KE-MV42M1 service manual will guide through the process and help you recover, restore, fix, disassemble and repair Sony KE-MV42A1 / KE-MV42M1 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.