Sony KE-42M1 Service Manual ▷ View online
2
KE-42M1
KE-42M1
SPECIFICATIONS
Design and specifi cations are subject to change without notice.
120V AC, 60Hz
370W
Under 1 W
Under 1 W
VIDEO
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
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
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.)
(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
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-
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.
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.
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.
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.
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.
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
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.
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)
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
Ω
0.15
µF
AC
Voltmeter
(0.75 V)
Voltmeter
(0.75 V)
To Exposed Metal
Parts on Set
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.
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.
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.
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.
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
(1)fi INPUT
(2)fi Volumefi-
(3)fi Volumefi+
(4)fi Channelfi-
(5)fi Channelfi+
LED Indicator
(1)fi TimerfiLED
(1)fi TimerfiLED
(2)fi PicturefiOfffiLED
(3)fi PowerfiLED
Control Button
(1)fi Powerfi(|)
(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.
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
KE-42M1 (WB) 5
TABLE OF CONTENTS
SAFETY CHECK-OUT .......................................
3
SELF-DIAGNOSTIC FUNCTION .......................
4
1. DISASSEMBLY ............................................. 1-1
1-1.
STAND AND REAR COVER REMOVAL ...... 1-1
1-2.
MAIN SHIELD REMOVAL ............................. 1-1
1-3.
P AND UPU BOARDS REMOVAL ................. 1-2
1-4.
AU 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 AND FAN BLOCK (R) ASSY
REMOVAL ........................................................ 1-4
1-8.
H1 AND H3 BOARDS REMOVAL ................. 1-5
1-9.
H2 BOARD REMOVAL ................................... 1-5
2. ADJUSTMENT .............................................. 2-1
2-1.
WHITE BALANCE ADJUSTMENTS ............. 2-1
2-2.
RESETTING DATA .......................................... 2-1
2-3.
AGING MODE .................................................. 2-1
2-4.
PANEL VOLTAGE ADJUSTMENT ................ 2-2
2-5.
REMOTE ADJUSTMENT BUTTONS AND
INDICATORS .................................................... 2-2
3. DIAGRAMS ................................................... 3-1
3-1.
BLOCK DIAGRAMS ........................................ 3-1
(1)
AU Board ....................................................... 3-1
(2)
BH, H1 and H2 Boards .................................. 3-2
(3)
UPU and H3 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.
PRINTED WIRING BOARDS AND SCHEMATIC
DIAGRAMS INFORMATION ......................... 3-8
(1)
Schematic Diagrams of AU Board ................ 3-9
(2)
Schematic Diagrams of BP Board ................. 3-14
(3)
Schematic Diagrams of F Board .................... 3-21
(4)
Schematic Diagrams of G1 Board ................. 3-22
(5)
Schematic Diagrams of G2 Board ................. 3-24
(6)
Schematic Diagram of H1 and H2 Boards .... 3-26
(7) Schematic Diagram of H3 Board .................. 3-27
3-5.
SEMICONDUCTORS ....................................... 3-28
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
