1-9-5
Power Supply Block Diagram
HK4F8BLP
2
4
16
6
7
COLD
MAIN CBA
HOT CIRCUIT. BE CAREFUL.
HOT
IC001
ERROR
VOLTAGE DET
Q002
Q003
Q001
F001
L003
LINE
FILTER
BRIDGE
RECTIFIER
D001 - D004
1
2
3
4
Q004
AC001
T001
P-ON+44V
P-ON+15V
12
P-ON-H
AL+12V/+20.5V
AL+9V
AL+12V
C-POW-SW
AL+5V
TIMER+5V
P-ON+5V
P-DOWN-L
Q051
Q053
Q054
Q056
Q052
Q057
Q058
13
15
14
11
17
18
T1.6A L 250V
Q055
Q059
SHUNT
REGULATOR
CAUTION !
Fixed voltage (or Auto voltage selectable) power supply circuit is used in this unit.
If Main Fuse (F001) is blown , check to see that all components in the power supply
circuit are not defective before you connect the AC plug to the AC power supply.
Otherwise it may cause some components in the power supply circuit to fail.
NOTE:
The voltage for parts in hot circuit is measured using
hot GND as a common terminal.
CAUTION !
For continued protection against fire hazard,
replace only with the same type fuse.
Summary of Contents for 29D-850
Page 25: ...1 10 3 HK4F8SCM1 Main 1 6 Schematic Diagram...
Page 27: ...1 10 5 HK4F8SCM3 Main 3 6 Schematic Diagram...
Page 28: ...1 10 6 HK4F8SCM4 Main 4 6 Jack Sub Jack Schematic Diagram...
Page 30: ...1 10 8 HK4F8SCM6 Main 6 6 Schematic Diagram...
Page 31: ...1 10 9 HK4F8SCAFV AFV Schematic Diagram...
Page 34: ...1 10 12 Jack CBA Top View Jack CBA Bottom View BHG470F01014C...
Page 41: ...1 15 1 HK4F5FEX EXPLODED VIEWS Front Panel A1X...
Page 53: ...29D 850 HK4F8ED 2005 09 02...
