Sony Trinitron KV-HS29M90 Service Manual page 78

• J(2/5) BOARD IC8310 : TDA9178
LUMINANCE VECTOR PROCESSING
Y
LUMINANCE
Y IN
6
INPUT PROCESSING
U IN 8
STAGE
V IN 9
BLACK STRETCH
U,V
HISTOGRAM PROCESSING
GAMMA CONTROL
COLOUR VECTOR
PROCESSING
SATURATION
CORRECTION
DEC DIG 15
V CC 20
SUPPLY
V 18
EE
SKIN TONE CORRECTION
GREEN ENHANCEMENT
BLUE STRETCH
SAND-
CASTIE
WINDOW
SC 1
GENERATION
NOISE
MEASURING
CALIBRATE
FEATUREMODE
DETECTION
2
I C
2
SDA 14 I C CONTROL
• J(4/5) BOARD IC8870 : M52055FP
CONTROL
INPUT 1A GND1 INPUT 2B VCC INPUT 2 INPUT 2A GND3 INPUT 3B
16 15 14 13 12 11 10 9
H L
L H
H L
1 2 3 4 5 6 7 8
INPUT 1B OUTPUT1 GND2 OUTPUT2 OUTPUT3 INPUT3A
CONTROL CONTROL
INPUT1 INPUT3
SPECTRAL PROCESSING
SMART PEAKING
LTI
OUTPUT
VDC
STAGE
CDS
DELAY
CTI
CONTROL
COLOUR
PROCESSING
ADEXT1(LOW FREQUENCIES)
ADEXT2(LOW FREQUENCIES)
ADC
ADEXT3(LOW FREQUENCIES)
'CUE FLASH'
– 116 –
• J(4/5) BOARD IC8871 : SN74LV4053ANSR
1G 1
21
S OUT
1A 2
SELECT
19 Y OUT
INPUTS
1B 3
17 U OUT
V OUT
16
2G 15
2A 14
SELECT
INPUTS
2B 13
• J(5/5) BOARD IC2001 : UPC2925T-E1
22 CF
3 ADXT1
ERROR
4 ADXT2
AMP.
5 ADXT3
• J(5/5) BOARD IC2005 : PQ3DZ53
V 1 3 V
IN O
SPECIFIC IC
2 V
C
5
GND
KV-HS29M61/M90/M91, HS34M61/M90/M91, HS38M61/M90/M91
4 1Y0
5 1Y1
6 1Y2
7 1Y3
DATA
OUTPUTS
12 2Y0
11 2Y1
10 2Y2
9 2Y3
1 INPUT
SAFE OPERATION
AREA PROTECTION
3 OUTPUT
OVERCURRENT
PROTECTION
2 GND
– 117 –
RM-997