Sony TRINITRON KV-32HS20 Service Manual page 62

B BOARD SCHEMATIC DIAGRAM (2 OF 4)
1 | 2 | 3 | 4 | 5 | 6
A
—
B
—
C
—
D
—
E
—
F
—
G
—
H
—
I
—
J
—
K
—
L
—
M
—
N
—
O
—
P
—
| 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18
— 62 —
| 19 | 20 | 21 | 22 | 23 | 24
B BOARD WAVEFORMS (2 OF 4)
1
3.5 Vp-p (V)
4
1.2 Vp-p (H)
7
1.2 Vp-p (H)
10
1.0 Vp-p (H)
13
1.3 Vp-p (H)
B BOARD: IC3001 CXA2151Q
SCL 30
SDA IIC BYS
31
DEC
ADDRESS 32
IN1-1 33
YPbPr J/YCbCr
IN1-2 34
IN1-3 35
YPbPrU /YCbCr
IN1-H/L1 36 1.2.3
IN1-V/L2 37
GBR/YCbCr
IN1-L3 38
IN1-SW 39
SEL STB-1
SEL-STB-2
IN2-1 41
DECL1 -1
IN2-2 42
DECL2 -1
IN2-3 43 DECL3 -1
DECSW -1
44
IN2-H/L1 DECL1 -2
IN1~IN4 DECL2 -2
IN2-V/L2 45
SELECTOR
DECL3 -2
IN2-L3 46 DECSW -2
IN2-SW 47
3
IN3-1 1
6dB
IN3-2 2
IN3-3 3 HYSW
IN3-V 4
H
IN3-V 5
IN4-1 7
IN4-2 8
V
IN4-3 9
IN4-V
10
IN4-V 11
INPUT-SEL
KV-32HS20/36HS20/36HS20H/32XBR450/36XBR450/36XBR450H
| 25 | 26 | 27 | 28 |
2 3
3.7 Vp-p (H) 1.5 Vp-p (H)
5 6
1.3 Vp-p (H) 0.2 Vp-p (3.58MHz)
8 9
0.8 Vp-p (H) 4.8 Vp-p (14.3MHz)
11 12
2.4 Vp-p (20MHz) 1.5 Vp-p (H)
14
1.3 Vp-p (H).
Y
27 SELY OUT
6dB Cb
MATRIX 26 SELCB OUT
AMP
SELECTOR Cr
25 SELCR OUT
YGAIN GAIN_SEL CLOCK
20 EXTCLK/X1
CBGAIN GEN.
CRGAIN
MAT-OUT
CLK - SEL
18 IREP
AUTODUM
H - NUMBER
V - NUMBER
40 VCC1
SYNC
48 GND1
COUNTER
28 VCC2
DUMMY 24 GND2
SYNC
12 VCC3
3 - STATE
MACRO
EXISTENCE DISTINCTION
6 GND3
3 - STATE
22 SELH OUT
SYNC MACRO H SYNC
INTELLIGENT SYNC SEP
DET. VISION WIDTH
HSEP SEL HS- MAX
H-WIDTH
HD TC FIX -SYNC 23 SELV OUT
V TC
PRIORITY BANKING
HV > CS > SYNC ON Y/G
SELDUM
15 16 13 14