Sony KD-34XBR2 Training Manual page 17

STBY 7V
FROM PW
SW.S01
(HA BD.)
RY 6501
AC RELAY
Q6527
AC FROM
CN6502/
CN6709
(F BD.)
B+ OVP
B+ OCP
D6530
Secondary Power Supply
Starting
The Secondary Power Supply needs three items to operate. They are listed in Chart 5-3 below:
Chart 5-3 - Three voltages needed to run the Secondary Power Supply
Item
1. 340Vdc (B+)
2. Pri Pre 15V
voltage
3. Main Relay
(normally HIGH)
D BD.
69
R017
100
C26 A26
AC
RELAY
1
2
CN6504/
Q6530
CN3170
Q6522
LATCH
200V
MAIN RELAY
OCP
IC6501
SECONDARY
POWER SUPPLY
R6526
O.1 ?
FIGURE 5-2 - DIAGRAM 13 - POWER ON 2/2
From
Bridge Rectifier D6530
Primary Power Supply' s
secondary winding
Main Micro IC001
IC001
MAIN MICRO 50
M306V2MF
46
45 44
72
R018
100
C25 A25
B+ OVP
MAIN
SW.
Q3170-
POWER SUPPLY
Q3172
LATCH
CN3171/
CN6506
7 8
B+ OVP
B+ OCP
200V OCP
Q8009
+200V
B+ OVP
Q6520-
B+ OCP
Q6524
135V
+15V
-
+24V
Powers the Driver/Output
Starts the oscillator when
above 15.6Vdc.
Enables IC6501 when
HIGH
14
5. HA-3 Chassis - Power ON Block
STBY
STBY
LED
5V
Q522
(FRONT
PANEL)
POWER ON
(HA BD.)
A BD.
11V
7V
IC6001
PRIMARY
R6039
R5002 R6043
0.1?
5 1
CN6003/
PRI
CN6501
PRE
15V
SOURCE
Purpose
B BD.
SUB 12V
REGULATORS
IC6008 Q9V
IC6007 SUB 9V
IC6006 SUB 5V
IC6005 SUB 3.3V
IC6004 Q5V
Q6.5V
D BD.
13TVP12 1331 8/30/01