Read Sony KE-50MR1 Service Manual online
SERVICE MANUAL
SPECIFICATIONS
KE-50MR1
FLAT PANEL COLOR TELEVISION
AEP Model
Media Receiver Unit (MBT-MR1)
Power Requirement: 220-240V AC; 50/60 Hz
Power Consumption: 27 W
Standby Power Consumption: 0.6 W
Dimensions (w x h x d):
Power Requirement: 220-240V AC; 50/60 Hz
Power Consumption: 27 W
Standby Power Consumption: 0.6 W
Dimensions (w x h x d):
Approx. 430 x 105 x 360 mm
Weight:
Approx. 6 kg
Display Unit (PDM-5000)
Power Requirement: 100-240V AC; 50/60 Hz
Screen Size: 50inches
Power Requirement: 100-240V AC; 50/60 Hz
Screen Size: 50inches
Approx. 127 cm measured
diagonally
diagonally
Display Resolution:
1365 dots (horizontal) x 768 lines
(vertical)
(vertical)
Power Consumption: 540W
Standby Power Consumption: 0.6W
Dimensions (w x h x d):
Standby Power Consumption: 0.6W
Dimensions (w x h x d):
Approx. 1,573 x 856 x 108 mm
Weight:
Approx. 53 kg
Panel System:
Plasma Display Panel
Plasma Display Panel
TV system:
Depending on your country selection:
B/G/H, D/K, L, I
Depending on your country selection:
B/G/H, D/K, L, I
Colour system:
PAL, SECAM
NTSC 3.58, 4.43 (only Video In)
PAL, SECAM
NTSC 3.58, 4.43 (only Video In)
Aerial:
75 ohm external terminal for VHF/UHF
75 ohm external terminal for VHF/UHF
Channel Coverage:
VHF: E2-E12
UHF: E21-E69
CATV: S1-S20
HYPER: S21-S41
D/K: R1-R12,
VHF: E2-E12
UHF: E21-E69
CATV: S1-S20
HYPER: S21-S41
D/K: R1-R12,
R21-R69
L:
F2-F10, B-Q, F21-F69
I: UHF
B21-B69
Rear Terminals:
1/
21-pin Scart connector (CENELEC
standard) including audio/video input,
RGB input, TV audio/video output.
standard) including audio/video input,
RGB input, TV audio/video output.
2/
21-pin Scart connector (CENELEC
standard) including audio/video input,
RGB input, TV audio/video output.
standard) including audio/video input,
RGB input, TV audio/video output.
3/
(SMARTLINK; selectable)
21-pin Scart connector (CENELEC
standard) including audio/video input, S
video input, selectable audio/video
output and Smartlink interface.
standard) including audio/video input, S
video input, selectable audio/video
output and Smartlink interface.
4/
(SMARTLINK; selectable)
21-pin Scart connector (CENELEC
standard) including audio/video
input, RGB input, selectable audio/
video output, and Smartlink interface.
standard) including audio/video
input, RGB input, selectable audio/
video output, and Smartlink interface.
5
Y:
1 Vp-p, 75 ohms, 0.3V negative sync
P
B
: 0.7 Vp-p, 75 ohms
P
R
: 0.7 Vp-p, 75 ohms
5
audio input (phono jacks)
500 m Vrms (100% modulation),
Impedance: 47 kilo ohms
500 m Vrms (100% modulation),
Impedance: 47 kilo ohms
SUB WOOFER: phono jack
: audio outputs (Left/Right) - phono jacks
CENTRE SPEAKER IN:
Max. 180W (6-ohms)
CTRL S: minijack
AV MOUSE: minijack
S
5
5
5
5
5
5
5
5
KE-50MR1(AEP)
2
Front Terminals:
6
S video input (4-pin mini DIN):
Y: 1 Vp-p, 75-ohms unbalanced, sync
negative
C: 0.286 Vp-p (Burst signal), 75 ohms
Y: 1 Vp-p, 75-ohms unbalanced, sync
negative
C: 0.286 Vp-p (Burst signal), 75 ohms
6
video input (phono jack):
1 Vp-p, 75-ohms unbalanced, sync
negative
1 Vp-p, 75-ohms unbalanced, sync
negative
6
audio input (phono jacks):
500 m Vrms (100% modulation),
Impedance: 47 kilo ohms
500 m Vrms (100% modulation),
Impedance: 47 kilo ohms
headphones jack
PC
PC Input (15-Dsub)
G: 0.7 Vp-p, 75 ohms, non Sync on Green
B:
G: 0.7 Vp-p, 75 ohms, non Sync on Green
B:
0.7 Vp-p, 75 ohms, non Sync on Green
R:
0.7 Vp-p, 75 ohms, non Sync on Green
HD:1-5 Vp-p
VD: 1-5 Vp-p
VD: 1-5 Vp-p
PC
PC audio input: minijack
Memory Stick Slot
Sound Output:
15W x 2
15W x 2
Accessories supplied:
• One Remote Control (RM-972)
• Two size AAA batteries (R03 type)
• One Display Interface Cable
• One Coaxial Cable
• One AV Mouse
• Two Mains Leads (Type C-4)
• Two Mains Leads (Type BF)
• Two Mains Leads (Type C-5)
• One Remote Control (RM-972)
• Two size AAA batteries (R03 type)
• One Display Interface Cable
• One Coaxial Cable
• One AV Mouse
• Two Mains Leads (Type C-4)
• Two Mains Leads (Type BF)
• Two Mains Leads (Type C-5)
Main leads Type BF and Type C-5
may not be supplied depending on
the country.
may not be supplied depending on
the country.
• One Cleaning cloth
• One Mains plug holder
• One Mains plug holder
S
i
Other features:
• Teletext, Fastext, TOPtext
• Sleep Timer
• Smartlink (direct link between your TV set
• Teletext, Fastext, TOPtext
• Sleep Timer
• Smartlink (direct link between your TV set
and a compatible VCR. For more
information on Smartlink, please refer to the
Instruction Manual of your VCR).
It's available either
information on Smartlink, please refer to the
Instruction Manual of your VCR).
It's available either
3 or
4.
(Selectable)
• TV system Autodetection
• Auto Format
• Auto Format
PC Input Timing:
Input signal frequency
Horizontal: 15.6 - 90 kHz
Vertical:
Input signal frequency
Horizontal: 15.6 - 90 kHz
Vertical:
48 - 85 Hz
Maximum Resolution: 1600 dots x 1200 lines
KE-50MR1(AEP)
3
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-
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” indication is 0.75 V, so
analog meters must have an accurate low-voltage scale. The Simpson 250
and Sanwa SH-63Trd are examples of a passive VOMs that are suitable.
Nearly all battery operated digital multimeters that have a 2 V AC range
are suitable. (See Fig. A)
analog meters must have an accurate low-voltage scale. The Simpson 250
and Sanwa SH-63Trd are examples of a passive VOMs that are suitable.
Nearly all battery operated digital multimeters that have a 2 V AC range
are suitable. (See Fig. A)
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-soldered
checks before releasing the set to the customer:
1. Check the area of your repair for unsoldered or poorly-soldered
connections. Check the entire board surface for solder splashes and
bridges.
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 certain that you
have replaced all the insulators.
have replaced all the insulators.
4. Look for unauthorized replacement parts, particularly transistors, that
were installed during a previous repair. Point them out to the customer
and recommend their replacement.
and recommend their replacement.
5. Look for parts which, though functioning, show obvious signs of
deterioration. Point them out to the customer and recommend their
replacement.
replacement.
6. Check the line cords for cracks and abrasion. Recommend the
replacement of any such line cord to the customer.
7. Check the B+ and HV to see if they are specified values. Make sure your
instruments are accurate; be suspicious of your HV meter if sets always
have low HV.
have low HV.
8. Check the antenna terminals, metal trim, “metallized” knobs, screws, and
all other exposed metal parts for AC Leakage. Check leakage as
described right.
described right.
Fig. A. Using an AC voltmeter to check AC leakage.
1.5 k
Ω
0.15
µ
F
AC
Voltmeter
(0.75 V)
Voltmeter
(0.75 V)
To Exposed Metal
Parts on Set
Parts on Set
Earth Ground
SAFETY CHECK-OUT
KE-50MR1(AEP)
4
AVERTISSEMENT!!
ATTENTION AUX COMPOSANTS RELATIFS À LA SÉCURITÉ!!
LES COMPOSANTS IDENTIFIÉS PAR UNE TRAME ET UNE
MARQUE
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.
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.
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 PUBLISHED BY SONY. CIRCUIT ADJUST-
MENTS THAT ARE CRITICAL FOR SAFE OPERATION ARE
IDENTIFIED IN THIS MANUAL. FOLLOW THESE PROCEDURES
WHENEVER CRITICAL COMPONENTS ARE REPLACED OR IM-
PROPER OPERATION IS SUSPECTED.
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 PUBLISHED BY SONY. CIRCUIT ADJUST-
MENTS THAT ARE CRITICAL FOR SAFE OPERATION ARE
IDENTIFIED IN THIS MANUAL. FOLLOW THESE PROCEDURES
WHENEVER CRITICAL COMPONENTS ARE REPLACED OR IM-
PROPER OPERATION IS SUSPECTED.