KE-MX42A1, KE-MX42M1, KE-MX42N1, KE-MX42S1 - Sony TV Service Manual (repair manual)

ke-mx42a1, ke-mx42m1, ke-mx42n1, ke-mx42s1 service manual
Model
KE-MX42A1 KE-MX42M1 KE-MX42N1 KE-MX42S1
Pages
106
Size
13.78 MB
Type
PDF
Document
Service Manual
Brand
Device
TV
File
ke-mx42a1-ke-mx42m1-ke-mx42n1-ke-mx42s1.pdf
Date

Read Sony KE-MX42A1 / KE-MX42M1 / KE-MX42N1 / KE-MX42S1 Service Manual online

SERVICE MANUAL
SPECIFICATIONS
AX-1 
CHASSIS
KE-MX42A1/MX42S1/MX42M1/
MX42N1
Plasma TV
China Model
Hong Kong Model
ME Model
OCE Model
Taiwan Model
110 – 240 VAC, 50/60 Hz  220 – 240 V AC, 50 Hz
Indicated on the rear of the TV.
I, D/K, B/G, M
PAL, PAL 60, SECAM, NTSC4.43, NTSC3.58
NICAM Stereo/Bilingual I, D/K, B/G;
A2 Stereo/Bilingual (German) B/G
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)
UHF : B21 to B68 / CATV : S01 to S03, S1 to S41
VHF : C1 to C12, R1 to R12 / UHF : C13 to C57, R21 to R60 /
CATV : S01 to S03, S1 to S41, Z1 to Z39
VHF : A2 to A13 / UHF : A14 to A79/
CATV : A-8 to A-2, A to W+4, W+6 to W+84
75-ohm external terminal
15 W + 15 W
Power requirements
Power consumption (W)
Television system
Color system
Stereo/Bilingual
system
Channel coverage
B/G
I
D/K
M
VHF/UHF (Antenna)
Audio output (Speaker)
KE-MX42A1
KE-MX42S1
220  V AC, 50 Hz
KE-MX42M1
110  V AC, 60 Hz
KE-MX42N1
KE-MX42A1/MX42S1/MX42M1/MX42N1 (E)     2
Input: 1
Phono jacks
G: 0.7 Vp-p, 75 ohms
B: 0.7 Vp-p, 75 ohms
R: 0.7 Vp-p, 75 ohms
HD: 0.7 Vp-p, 75 ohms
VD: 0.7 Vp-p, 75 ohms
Input:1
120 W max., 8 ohms
Output: 1
Phono jack
Output: 1
Stereo minijack
1024 pixels 
× 
1024 pixels
42 inches
1229 
×
 678 
× 
110
38 kg
 COMPONENT
VIDEO IN
(G/B/R/HD/VD
Video)
P
C– CENTER SP IN
(Center Speaker)
WOOFER OUT (VAR)
i
 (Headphones)
Display resolution
Screen size
Dimensions (w/h/d, mm)
Mass (kg)
5
Design and specifications are subject to change without notice.
Input: 4    Output: 1
Phono jacks; 1 Vp-p, 75 ohms
Input: 5    Output: 1
Phono jacks; 500 mVrms
Input: 3
Y: 1 Vp-p, 75 ohms,
unbalanced, sync negative
C: 0.286 Vp-p, 75 ohms
Input: 2
Phono jacks
Y: 1 Vp-p, 75 ohms, sync negative
P
B
/C
B
: 0.7 Vp-p, 75 ohms
Audio: 500 mVrms
Number of terminal
 VIDEO (Video)
 AUDIO (Audio)
 S VIDEO
 (S Video)
 COMPONENT
VIDEO IN
(Component Video)
P
B
/C
R
: 0.7 Vp-p, 75 ohms
KE-MX42A1/MX42S1/MX42M1/MX42N1 (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 µF
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-MX42A1/MX42S1/MX42M1/MX42N1 (E)     4
TABLE OF CONTENTS
1. DISASSEMBLY ............................................. 1-1
1-1.
REAR COVER REMOVAL .............................. 1-1
1-2.
TU BOARD REMOVAL ................................... 1-2
1-3.
A AND J2 BOARDS REMOVAL ..................... 1-2
1-4.
BD, DE4, J1 AND MS2 BOARDS REMOVAL 1-3
1-5.
F AND K BOARDS REMOVAL ...................... 1-3
1-6.
H2 BOARD REMOVAL ................................... 1-4
1-7.
HM AND H1 BOARDS REMOVAL ................ 1-4
1-8.
SPEAKER BOX REMOVAL ............................ 1-5
1-9.
SWITCHING REGULATOR REMOVAL ....... 1-5
1-10. SHIELD ASSY REMOVAL .............................. 1-6
1-11. PLASMA DISPLAY PANEL REMOVAL ....... 1-6
1-12. H3 AND H4 BOARDS REMOVAL ................. 1-7
2. ADJUSTMENT .............................................. 2-1
2-1.
AGING ............................................................... 2-1
2-1-1. Measurement equipment ................................ 2-1
2-1-2. Aging condition ............................................. 2-1
2-1-3. Measuring procedure ..................................... 2-1
3. DIAGRAMS ................................................... 3-1
3-1.
BLOCK DIAGRAMS ........................................ 3-1
3-2.
FRAME DIAGRAMS ........................................ 3-8
3-3.
CIRCUIT BOARDS LOCATION ..................... 3-9
3-4.
SCHEMATIC  DIAGRAMS ............................. 3-9
(1)
Schematic Diagrams of A Board ................... 3-10
(2)
Schematic Diagrams of BD Board ................ 3-17
(3)
Schematic Diagrams of DE4 Board .............. 3-21
(4)
Schematic Diagram of F Board ..................... 3-28
(5)
Schematic Diagram of H1 and H2 Boards .... 3-29
(6)
Schematic Diagram of H3 and H4 Boards .... 3-30
(7)
Schematic Diagram of HM Board ................. 3-31
(8)
Schematic Diagram of J1 Board .................... 3-32
(9)
Schematic Diagram of J2 and TU Boards ..... 3-34
(10) Schematic Diagram of K Board .................... 3-35
(11) Schematic Diagrams of MS2 Board .............. 3-37
3-5.
SEMICONDUCTORS ....................................... 3-42
4. EXPLODED VIEWS ...................................... 4-1
4-1.
COVER AND STAND ...................................... 4-2
4-2.
SPEAKER .......................................................... 4-3
4-3.
CHASSIA-1 ........................................................ 4-4
4-4.
CHASSIA-2 ........................................................ 4-5
4-5.
PACKING MATERIALS .................................. 4-6
5.  ELECTRICAL PARTS LIST ......................... 5-1
Page of 106
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Download Sony KE-MX42A1 / KE-MX42M1 / KE-MX42N1 / KE-MX42S1 Service Manual (Repair Manual)

Here you can read online and download Sony KE-MX42A1 / KE-MX42M1 / KE-MX42N1 / KE-MX42S1 Service Manual in PDF. KE-MX42A1 / KE-MX42M1 / KE-MX42N1 / KE-MX42S1 service manual will guide through the process and help you recover, restore, fix, disassemble and repair Sony KE-MX42A1 / KE-MX42M1 / KE-MX42N1 / KE-MX42S1 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.