Warnings And Cautions; Self-Diagnostic Function - Sony KV-32FV16 Service Manual

KV-32FV16/32FV26/34FV16/34FV16C/34FX260/34FX260C
CAUTION
SHORT CIRCUIT THE ANODE OF THE PICTURE TUBE AND
THE ANODE CAP TO THE METAL CHASSIS, CRT SHIELD,
OR CARBON PAINTED ON THE CRT, AFTER REMOVING
THE ANODE.
WARNING!!
AN ISOLATION TRANSFORMER SHOULD BE USED DURING
ANY SERVICE TO AVOID POSSIBLE SHOCK HAZARD,
BECAUSE OF LIVE CHASSIS. THE CHASSIS OF THIS
RECEIVER IS DIRECTLY CONNECTED TO THE AC POWER
LINE.
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY SHADING AND MARK
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 ADJUSTMENTS THAT ARE CRITICAL FOR SAFE
OPERATION ARE IDENTIFIED IN THIS MANUAL. FOLLOW
THESE PROCEDURES WHENEVER CRITICAL
COMPONENTS ARE REPLACED OR IMPROPER OPERATION
IS SUSPECTED.
The units in this manual contain a self-diagnostic function. If an error occurs, the STANDBY/TIMER LED will automatically begin to
flash. The number of times the LED flashes translates to a probable source of the problem. A definition of the STANDBY/TIMER LED
flash 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 flash 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 first of the problem areas.
Results for all of the following diagnostic items are displayed on screen. No error has occurred if the screen displays a "0".
No. of Times
Diagnostic Item
STANDBY/TIMER
Description
LED Flashes
Power does not turn on Does not light
+B overcurrent (OCP)*
+B overvoltage (OVP)*
V-STOP*
IK (AKB)
* If a +B overcurrent is detected, stoppage of the vertical deflection is detected simultaneously.
The symptom that is diagnosed first by the microcontroller is displayed on the screen.
** Refer to Screen (G2) Adjustments in Section 2-4 of this manual.

WARNINGS AND CAUTIONS

ON

SELF-DIAGNOSTIC FUNCTION

Self-diagnostic Display/
Diagnostic Result
N/A
N/A
N/A
N/A
N/A
4 times 4:0 or 4:1
5 times 5:0 or 5:1
APRES AVOIR DECONNECTE LE CAP DE L'ANODE, COURT-CIRCUITER
L'ANODE DU TUBE CATHODIQUE ET CELUI DE L'ANODE DU CAP AU
CHASSIS METALLIQUE DE L'APPAREIL, OU AU COUCHE DE CARBONE
PEINTE SUR LE TUBE CATHODIQUE OU AU BLINDAGE DU TUBE
CATHODIQUE.
AFIN D'EVITER TOUT RESQUE D'ELECTROCUTION PROVENANT D'UN
CHÁSSIS SOUS TENSION, UN TRANSFORMATEUR D'ISOLEMENT DOIT ETRE
UTILISÉ LORS DE TOUT DÉPANNAGE. LE CHÁSSIS DE CE RÉCEPTEUR EST
DIRECTEMENT RACCORDÉ À L'ALIMENTATION SECTEUR.
ATTENTION AUX COMPOSANTS RELATIFS A LA SECURITE!!
LES COMPOSANTS IDENTIFIES PAR UNE TRAME ET PAR UNE MARQUE
SUR LES SCHEMAS DE PRINCIPE, LES VUES EXPLOSEES ET LES
LISTES DE PIECES SONT D'UNEIMPORTANCE CRITIQUE POUR LA
SECURITE DU FONCTIONNEMENT. NE LES REMPLACER QUE PAR DES
COMPOSANTS SONY DONT LE NUMERO DE PIECE EST INDIQUE DANS
LE PRESENT MANUEL OU DANS DES SUPPLEMENTS PUBLIES PAR SONY.
LES REGLAGES DE CIRCUIT DONT L'IMPORTANCE EST CRITIQUE POUR
LA SECURITE DU FONCTIONNEMENT SONT IDENTIFIES DANS LE PRESENT
MANUEL. SUIVRE CES PROCEDURES LORS DE CHAQUE REMPLACEMENT
DE COMPOSANTS CRITIQUES, OU LORSQU'UN MAUVAIS
FONTIONNEMENT SUSPECTE.
Probable Cause
Location
• Power cord is not plugged in.
• Fuse is burned out. (F601) (A Board)
• H.OUT (Q502) is shorted. (A Board)
• IC1701 is shorted. (C Board)
• IC643 or T603 is open. (G Board)
• IC6003 or PH6001 is open (GA Board)
• +12V is not supplied. (A Board)
• IC502 is faulty. (A Board)
• Video OUT (IC502) is faulty. (A Board)
• IC355 is faulty. (A Board)
• Screen (G2) is improperly adjusted.**
—
4 —
ATTENTION!!
ATTENTION!!
Detected Symptoms
• Power does not come on.
• No power is supplied to the TV.
• AC power supply is faulty.
• Power does not come on.
• Load on power line is shorted.
• Power does not come on.
• Has entered standby state after horizontal raster.
• Vertical deflection pulse is stopped.
• Power line is shorted or power supply is stopped.
• No raster is generated.
• CRT cathode current detection reference
pulse output is small.