Read Sony KE-MR50M2 Service Manual online
Audio output (Speaker)
VHF : 0 to 12, 5A, 19A / UHF : 28 to 69 / CATV : S01 to S03, S1 to S41 (Australiaonly)
VHF : 1 to11 / UHF : 21 to 69 / CATV : S01 to S03, S1 to S41 (New Zealand only)
CATV : S01 to S03, S1 to S41, Z1 to Z39
CATV : A-8 to A-2, A to W+4, W+6 to W+84
C: 0.286 Vp-p, 75 ohms
Y: 1 Vp-p, 75 ohms, sync negative
PB/CB: 0.7 Vp-p, 75 ohms
PR/CR: 0.7 Vp-p, 75 ohms
Audio: 500 mVrms
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
following safety checks before releasing the set to the customer:
1. Check the area of your repair for unsoldered or poorly-sol-
splashes and bridges.
tain that you have replaced all the insulators.
out to the customer and recommend their replacement.
mend their replacement.
Check leakage as described right.
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
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)
Parts on Set
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.
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.
Operate the remote command to confirm the matter on the screen and to predict the location of the abnormality.