Denon AVR-4802 Service Manual page 67

SCHEMATIC DIAGRAMS (6/9)
1 2 3
2.6V
4 5
- 5V
5V
5V
3.1V
4.9V
4V 2.9V 5V
4.4V
1.8V 0V
- 5V
2.86V
1.44V
2.37V
3.25V
NOTICE
ALL RESISTANCE VALUES I N OHM. k=1,000 OHM M=1,000,000 OHM
ALL CAPACITANCE VALUES I N MICRO FARAD. P=MICRO-MICRO FARAD
EACH VOLTAGE AND CURRE NT ARE MEASUERD AT NO SIGNAL INPUT
CONDITION.
CIRCUIT AND PARTS ARE SUBJECT TO CHANGE WITHOUT PRIOR
NOTICE.
6 7 8
59.5V
12V
AVR Model only
- 59.5V
5V
5V
4.8V
- 5V
- 5V
5V 5V 5V 5V 5V
WARNING:
Parts marked with this symbol
Use ONLY replacemen t parts recommended by the manufacture.
CAUTION:
Before returning the unit to the customer, make sure you make either (1) a
leakage current check or (2) a line to chassis resistance check. If the leakage
current exceeds 0.5 milliamps, or if the resistance from chassis to either side
of the power card is less than 460 kohms, the unit is defective.
WARNING:
DO NOT return the unit to the customer until the problem is located and
corrected.
9 10
20V
20V
20V
15.0V
24.2V
- 24.2V
- 15.0V
13.1V
+ 14.4V
0V
- 14.4V
- 13.1V
5.1V
5.1V
5.1V
+ B LINE
- B LINE
SIGNAL LINE
have critical characteristics.
SCHEMATIC DIAGRAMS (6/9)
1U-3353-1 C VIDEO & REG. UNIT
1U-3353-2 OSD UNIT
1U-3353-3 MASTER VR UNIT
1U-3353-4 AC OUTLET UNIT
1U-3353-5P .SW UNLOCK UNIT
1U-3353-6 P .SW LOCK UNIT (AVC MODEL ONLY)
AVR-4802/AVC-A11SR
11
A
B
C
D
E
5.1V
F
G
H
67