Circuit Boards Location; Schematic Diagrams And Printed Wiring Boards - Sony TRINITRON KV-XF29M50 Service Manual

5-3. CIRCUIT BOARDS LOCATION

H3
A
B2
– 49 –
KV-XF25M50/XF25M80 KV-XF25M50/XF25M80
RM-954 RM-954

5-4. SCHEMATIC DIAGRAMS AND PRINTED WIRING BOARDS

Note:
• All capacitors are in µF unless otherwise noted.
•
All electrolytic capacitors are rated at 50V unless otherwise noted.
•
All resistors are in ohms.
kΩ = 1000Ω, MΩ = 1000kΩ
•
Indication of resistance which does not have rating electrical power is as
C follows.
Pitch: 5 mm
Rating electrical power 1/4W (CHIP: 1/10W)
•
: nonflammable resistor.
¢
•
: internal component.
•
: panel designation or adjustment for repair.
•
All variable and adjustable resistors have characteristic curve B unless
otherwise noted.
• Readings are taken with a color-bar signal input.
no mark : PAL
( ) : SECAM
VM1
[ ] : NTSC 3.58
« » : NTSC 4.43
• Readings are taken with a 10 MΩ digital multimeter.
• Voltage are dc with respect to ground unless
F
otherwise noted.
• Voltage variations may be noted due to normal
production tolerances.
B3
• All voltages are in V.
•
:Cannot be measured.
*
• Circled numbers are waveform references.
•
:B + bus.
•
:B – bus.
•
:signal path.
Reference information
RESISTOR : RN METAL FILM
: RC SOLID
: FPRD NONFLAMMABLE CARBON
: FUSE NONFLAMMABLE FUSIBLE
: RS NONFLAMMABLE METAL OXIDE
: RB NONFLAMMABLE CEMENT
: RW NONFLAMMABLE WIREWOUND
: *
ADJUSTMENT RESISTOR
COIL : LF-8L MICRO INDUCTOR
CAPACITOR : TA TANTALUM
: PS STYROL
: PP POLYPROPYLENE
: PT MYLAR
: MPS METALIZED POLYESTER
: MPP METALIZED POLYPROPYLENE
: ALB BIPOLAR
: ALT HIGH TEMPERATURE
: ALR HIGH RIPPLE
Note: The component identified by shading and
mark ! are critical for safety. Replace only with
part n umber specified.
– 50 –
A BOARD WAVEFORMS
1 2 3 4
4.9Vp-p (V) 1.8Vp-p (V) 1.8Vp-p (V) 1.0Vp-p (H)
6 7 8 PAL/SECAM 8 NTSC
PAL : 0.6Vp-p (H)
0.8Vp-p (H) 0.9Vp-p (H) SECAM : 0.8Vp-p (H) 0.7Vp-p (H)
10 11 PAL 11 SECAM 11 NTSC
PAL/SECAM : 3.6Vp-p (H)
NTSC : 3.9Vp-p (H) 3.5Vp-p (H) 3.5Vp-p (H) 3.5Vp-p (H)
12 SECAM 12 NTSC 13 PAL 13 SECAM
4.1Vp-p (H) 3.7Vp-p (H) 1.3Vp-p (H) 1.3Vp-p (H)
14 15 16
134Vp-p 924Vp-p (H) 2.0Vp-p (V)
A BOARD IC001 CXP86461-621S
CLOCK GENERATOR
SPC700 CPU CORE
A/D CONVERTER
AN0~AN5 6 /SYSTEM CONTROL 8
6CH
RMC REMOCON FIFO ROM
RAM 8
12K/16K/24K/32K
352/704/1536 BYTES
40K/48K/60K BYTES
S1
SERIAL INTERFACE 6
SO
UNIT
SCK
2
8-BIT TIMER/
EC
2
COUNTER 0
8-BIT TIMER 1
TO 8
XLC
2
EXLC PRESCALER/ 2
R TIME-BASE TIMER
2
G
B 3
ON SCREEN
WATCHDOG TMER
I DISPLAY
YS
8
YM
32kHZ
HSYNC
TIMER/COUNTER
VSYNC
5
HS0 HSYNC COUNTER 0
2
I C BUS 2 8-BIT PWM 8CH
14BIT PWM 1CH
INTERFACE UNIT (6CH)
HS1 HSYNC COUNTER 1
8 (6)
– 51 –
KV-XF25M50/XF25M80
RM-954
5
0.7Vp-p (V)
9
0.7Vp-p (H)
12 PAL
3.6Vp-p (H)
13 NTSC
1.3Vp-p (H)
PA0~PA7
PB0~PB7
PC0~PC5
PC6~PC7
PD0~PD7
PE0~PE1
PE2~PE3
PE4~PE6
PF0~PF7
PG3~PG6*, PG7
Schematic diagram
A /
(1/2) board