KE-42M1 — Sony TV Service Manual (repair manual)

Model
KE-42M1
Pages
90
Size
9.5 MB
Type
PDF
Document
Service Manual
Brand
Device
TV
File
ke-42m1.pdf
Date

View Sony KE-42M1 Service Manual online

SERVICE MANUAL
KE-42M1
PDP Colour TV
Taiwan Model
AT2 
CHASSIS
 2 
KE-42M1
KE-42M1
SPECIFICATIONS
Design and specifi cations are subject to change without notice.
120V AC, 60Hz 
 
 
370W
Under 1 W
VIDEO
 Video
 
 
1Vp-p, 75ohms unbalanced, sync negative 
 S 
Video
 
 
(4-pin mini DIN)
 
 
Y: 1Vp-p, 75ohms unbalanced, sync negative 
 
 
C: 0.286Vp-p (Burst signal), 75ohms
 Audio
 
 
500 mVrms (100% modulation)
 
 
Impedance:47 kilo ohms
HD/DVD IN
 
Y, PB, PR (Component Video)
 
 
Y: 1.0 Vp-p, 75 ohms unbalanced, sync negative 
  
PB
:
 0.7 Vp-p, 75 ohms;
 
 
PR: 0.7 Vp-p, 75 ohms
 
 
Signal Format 480i, 480p, 720p, 1080i
 Audio 
 
 
500 mVrms at (100% modulation)
 
 
Impedance:47 kilo ohms
Power Requirements
Power Consumption (W)
 
In Use (Max)
 In 
Standby 
 Inputs/Outputs
HDMI IN
 HDMI 
IN
 
 
Video: 1080i, 720p, 480p, 480i
 
 
Audio: Twho channel linear PCM32, 44.1, and 48 kHz
16, 20, and 24 bits
 
Audio 
 
 
500 mVrms at (100% modulation)
 
 
Impedance:47 kilo ohms
AUDIO OUT
 
500 mVrms at (100% modulation)
 
More than 1 Vrms at the maximum volume setting (Variable)
 
More than 500 mVrms (Fixed)
Headphones
 
Stereo mini jack
 
Impedance: 16 ohms
Television system
 American 
TV 
standard, 
NTSC
Channel coverage
 
VHF: 2-13/ UHF: 14-69/ CATV: 1-125 
Panel System
 
Plasma Display panel
Visible screen size
 
42-inch picture measured diagonally 
Antenna
 
75 ohm external terminal for VHF/UHF 
Display resolution
 
852 dots (horizontal) x 480 lines (vertical) 
Supplied Accessories
 
Remote Commander RM-Y1003
 
Two Size AA (R6) Batteries
 
75 ohms coaxial cable
 
AC power cord
 
Clamp screws (2)
 
Plug Holder for AC Power Cord
 Cleaning 
cloth
 Operating 
Instructions
 
Quick Setup Guide
 Warranty 
Card
KE-42M1
Speaker Output (W)
10W x 2
Dimensions (W x H x D)
mm
1,075 x 826 x 312 mm
in
42
3/8
 x 32 
5/8
 x 12 
3/8
 in
Without Stand
mm
1,075 x 750 x 110 mm
in
42
3/8
 x 29 
5/8
 x 4 
3/8
 in
Mass
kg
45 kg
lbs
99 lbs 3 oz
Without Stand
kg
39.5 kg
lbs
87 lbs 1 oz
Optional Accessories
(Note: Some optional accessories may be out 
of stock.)
 
Headphones plug adapter
 
Connecting cables - VMC-810S/820S, 
YC-15v/30v,RK-74A. VMC-10HG,  
SMF-403
 
Wall-Mount Bracket SU-PW2
KE-42M1 (WB)     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.
 4 
KE-42M1
KE-42M1
SELF-DIAGNOSTIC FUNCTION
The units in this manual contain a self-diagnostic function. If an error occurs, the STANDBY/TIMER LED will automatically begin to fl ash. The number 
of times the LED fl ashes translates to a probable source of the problem. A defi nition of the STANDBY/TIMER LED fl ash indicators is listed in the 
instruction manual for the user’s knowledge and reference. If an error symptom cannot be reproduced, the Remote Commander can be used to review 
the failure occurrence data stored in memory to reveal past problems and how often these problems occur.
Diagnostic Test Indicators
When an error occurs, the STANDBY/TIMER LED will fl ash a set number of times to indicate the possible cause of the problem. If there is more than 
one error, the LED will identify the fi rst of the problem areas.
Explanation of Controls
 
Front Panel Control Button
(1)fi INPUT
(2)fi Volumefi-
(3)fi Volumefi+
(4)fi Channelfi-
(5)fi Channelfi+
LED Indicator
(1)fi TimerfiLED
(2)fi PicturefiOfffiLED
(3)fi PowerfiLED
Control Button
(1)fi Powerfi(|)
LED Display
This model displays Power Supply Lamp in Green and Standby/Off-Timer Lamp in Red. Use the following tables to determine the status of the monitor.
LED Display 
Status 
Power LED 
Timer LED 
Picture off LED 
Remarks 
Power On 
Green On 
Off 
Off 
Microprocessor is in normal working 
mode. 
Standby 
Red On 
Off 
Off 
Microprocessor is in sleeping mode. 
Aging 
Green Blink 
Off 
Off 
 
Off Timer Reserved 
Green On 
Red On 
Off 
 
Failure 
Red Blink 
Off 
Off 
Causes of the failures are classified by 
red blink method. (See Failure LED 
Display table) 
Power Off 
(Main Power Supply) 
Off Off 
Off 
 
Picture Off 
Off Off  Blue 
On 
 
Failure LED Display 
Watch Items 
Classification of Failure 
Categories 
LED Display 
Pixel Works malfunction 
Scalar failure 
RED (2.0 sec.) 
 Off (2.0 sec.) 
Main Unit malfunction 
Panel temperature 
malfunction 
FAN malfunction 
Main Unit 
temperature failure 
RED (1.0 sec.) 
 Off (1.0 sec.) 
5V Voltage malfunction 
3.3V Voltage malfunction 
Main Voltage malfunction 
Power Supply failure 
RED (1.5 sec.) 
 Off (0.5 sec.) 
Self Diagnosis
Supported model
Page of 90

Download Sony KE-42M1 Service Manual (Repair Manual)

Here you can view online or download Sony KE-42M1 Service Manual in pdf. This Service Manual can help you recover, restore, fix, disassemble and repair Sony KE-42M1 TV. Information contained in Sony KE-42M1 service manual (repair manual) typically includes:

  • Disassembly, troubleshooting, programming, maintenance, remote, adjustment, installation and setup instructions.
  • Schematics, wiring and block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Parts list (bill of materials).