Marantz PM8005 Service Manual

ABOUT THIS MANUAL
.............................................................3
What you can do with this manual ............................................3
Using Adobe Reader (Windows version) ..................................4
SAFETY PRECAUTIONS
..........................................................6
NOTE FOR SCHEMATIC DIAGRAM
.........................................7
NOTE FOR PARTS LIST
...........................................................7
TECHNICAL SPECIFICATIONS
................................................9
DIMENSION
...............................................................................9
DISASSEMBLY
........................................................................10
1. FRONT PANEL ASSY ........................................................11
2. HEAT SINK ASSY ..............................................................12
3. PHONO AMP PCB .............................................................13
4. STANDBY PCB ..................................................................13
5. REAR PANEL ASSY ..........................................................14
6. MAIN PCB ..........................................................................14
SPECIAL MODE
......................................................................15
1. SERVICE MODE ................................................................15
2. PROTECTION MODE ........................................................16
Procedure after Replacing the MicroPROCESSOR, etc
......18
ADJUSTMENT
.........................................................................19
TROUBLE SHOOTING
............................................................21
1. The power can not be turned on.
(STANDBY LED does not light (STANDBY MODE)) ..........21
2. The power can not be turned on.
(STANDBY LED lights ash) .......................................21
3. STANDBY LED FLASHES WHILE USING UNIT .............22
4. The power turned on,
but a sound does not output normally. ..............................22
LEVEL DIAGRAM
....................................................................23
BLOCK DIAGRAM
...................................................................23
POWER DIAGRAM
..................................................................23
WIRING DIAGRAM
..................................................................24
PRINTED Circuit BOARDS
.....................................................25
SCHEMATIC DIAGRAMS (1/6 )
..............................................29
MAIN .......................................................................................29
MAIN / POWER STAGE 1/2 ....................................................30
MAIN / POWER STAGE 2/2 ....................................................31
U-COM / SELECTOR ..............................................................32
POWER AMP / SPK TERMINAL / TONE ................................33
HEADPHONE / POWER SW / STANDBY ..............................34
PHONO AMP / SPK TERMINAL / VOLUMERECT .................35
EXPLODED VIEW
...................................................................36
PACKING VIEW
.......................................................................37
SEMICONDUCTORS
...............................................................38
1. IC's .....................................................................................38
2
CONTENTS

Marantz PM8005 Specifications

General

Amplifier class	-
Frequency range	5 - 100000 Hz
Audio output channels	- channels
Peak power per channel	100 W
Signal-to-Noise Ratio (SNR)	125 dB
Total Harmonic Distortion (THD)	0.02 %
Purpose	Home
Product color	Black
Channels quantity	2 channels
Connectivity technology	Wired
AC input voltage	120 V
AC input frequency	60 Hz
Power consumption (standby)	0.2 W
Power consumption (typical)	220 W

Weight and Dimensions

Depth	379 mm
Width	440 mm
Height	128 mm
Weight	12000 g