Sony TRINITRON KV-A2121D - Page 38

D BOARD 1C251/261 TDA2050
D BOARD IC501 TEA2028B
———0 B 22
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t eae
ak
©) vc a SUBST.
tos INPUT i
VIDEO
[BENT IFICAT. 1 INHIRITION +
co TIME € SWITCHING
FRAME TIMING (ae)
30760 Ht J oeNTIFECATION LOGIC
SAFETY INPUT
SWITCH ON/OFF
+
SAFETY CIRCUIT
SAFETY
LOGIC
SOFT STARTING
CIRCUIT
LOGIC TIMING
D BOARD IC502 TDA8170
D BOARD IC601 TEA2260
KEY PULSE
VCO
SOOKKz
@)
TONSTART
PROGRAM
HORIZONTAL
H. SAW. TOOTH
GENERATCR Ay
H. OUTPUT
RC
OSC ILLATOR
|
|
SS
Gh
— 47 —
VLF OSC ILL
TON MAX MBB
eee!
SYNC.
SWITCH
VOLTAGE
+0.1V
COMPAR
START
SHAPER
NOTE:
The circuit indicated as left contains high voltage of over
600 Vp-p. Care must be paid to prevent an electric shock in
inspection or repairing.
VOLTAGE REF. = vcc
COMPARATOR
INTERN. REGUL.
STOP
STOP
FLIP.FLOP
START
Ic LIMIT
— 48 —
TUNING CONTROL, POWER CONTR
AUDIO OUT, H/V OUT
— D Board —
2
A
B
C
D
E
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