Harman Kardon HS 500 Service Manual ▷ View online
HS 300/500 Home Cinema System
SERVICE MANUAL
27820_HS500_Eng 07/08/06 14:22 Side 1
CONTENTS
SERVICE INFO, MECHAS
2
UNIT EXPLODED VIEW AND PARTS
11
SERVICING PRECAUTIONS
3
PARTS LIST
12
ESD PRECAUTIONS
5
PINOUTS
69
BASIC SPECIFICATIONS 300
6
PCB DRAWINGS
85
BASIC SPECIFICATIONS 500
7
BLOCK DIAGRAM
93
TROUBLESHOOTING GUIDE
8
WIRING DIAGRAM
94
PACKING LIST AND VIEW
10
SCHEMATIC DIAGRAMS
95
harman/kardon
service manual
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harman/kardon
Service Info
HS 300/500
23 Aug 2007
To:
All harman/kardon Service Centers
Models:
HS 300/500
Subject:
Hardware changes (2 changes, mecha and main board).
Please note that a change in hardware from Sanyo optics and mecha to Hitachi optics and
mecha has been carried out from the serial numbers stated below.
Model
Start serial number End serial number Optic / mecha
Part number
WA0020-01001 WA0020-03501 HD62
-
DV342 (Sanyo)
01.15.JX.DV342
HS 300/230 WA0020-03502 -
HOP1200W- DM3403-C
(Hitachi) 01.15.JX.EDM3403
WA0023-01001 WA0023-03500 HD62
-
DV342 (Sanyo)
01.15.JX.DV342
HS 500/230 WA0023-03501 -
HOP1200W- DM3403-C
(Hitachi)
01.15.JX.EDM3403
Due to the change of mecha, the main boards are also different. It is important to use the correct
main board for the loader, as the servo circuit has changed on the main board.
Model
Start serial number End serial number Main board version
Part number
WA0020-01001
WA0020-03501
Up to version 1.6
HAV06M1802C02*
HS 300/230 WA0020-03502
-
From version 1.7
0211HAV06M3625C023
WA0023-01001
WA0023-03500
Up to version 1.6
HAV06M1802C02*
HS 500/230 WA0023-03501
-
From version 1.7
0211HAV06M3625C025
* Please note that correct software according to model must be installed after change of main
board
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service manual
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Please note that there is no difference in playability or functionality between the Sanyo and Hitachi loaders.
1
SERVICING PRECAUTIONS
NOTES REGARDING HANDLING OF THE PICK-UP
1. Notes for transport and storage
1) The pick-up should always be left in its conductive bag until immediately prior to use.
2) The pick-up should never be subjected to external pressure or impact.
2) The pick-up should never be subjected to external pressure or impact.
2. Repair notes
1) The pick-up incorporates a strong magnet, and so should never be brought close to magnetic materials.
2) The pick-up should always be handled correctly and carefully, taking care to avoid external pressure and
2) The pick-up should always be handled correctly and carefully, taking care to avoid external pressure and
impact. If it is subjected to strong pressure or impact, the result may be an operational malfunction
and/or damage to the printed-circuit board.
and/or damage to the printed-circuit board.
3) Each and every pick-up is already individually adjusted to a high degree of precision, and for that reason
the adjustment point and installation
screws should absolutely never be touched.
screws should absolutely never be touched.
4) Laser beams may damage the eyes!
Absolutely never permit laser beams to enter the eyes!
Also NEVER switch ON the power to the laser output part (lens, etc.) of the pick-up if it is damaged.
Also NEVER switch ON the power to the laser output part (lens, etc.) of the pick-up if it is damaged.
5) Cleaning the lens surface
If there is dust on the lens surface, the dust should be cleaned away by using an air bush (such as used
for camera lens). The lens is held by a delicate spring. When cleaning the lens surface, therefore, a cot-
ton swab should be used, taking care not to distort this.
for camera lens). The lens is held by a delicate spring. When cleaning the lens surface, therefore, a cot-
ton swab should be used, taking care not to distort this.
6) Never attempt to disassemble the pick-up.
Spring by excess pressure. If the lens is extremely dirty, apply isopropyl alcohol to the cotton swab. (Do
not use any other liquid cleaners, because they will damage the lens.) Take care not to use too much of
this alcohol on the swab, and do not allow the alcohol to get inside the pick-up.
not use any other liquid cleaners, because they will damage the lens.) Take care not to use too much of
this alcohol on the swab, and do not allow the alcohol to get inside the pick-up.
Storage in conductive bag
NEVER look directly at the laser beam, and don’t let contact
fingers or other exposed skin.
fingers or other exposed skin.
Magnet
How to hold the pick-up
Conductive Sheet
Cotton swab
Pressure
Pressure
Drop impact
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2
NOTES REGARDING COMPACT DISC PLAYER REPAIRS
1. Preparations
1) Compact disc players incorporate a great many ICs as well as the pick-up (laser diode). These compo-
nents are sensitive to, and easily affected by, static electricity. If such static electricity is high voltage,
components can be damaged, and for that reason components should be handled with care.
components can be damaged, and for that reason components should be handled with care.
2) The pick-up is composed of many optical components and other high-precision components. Care must
be taken, therefore, to avoid repair or storage where the temperature of humidity is high, where strong
magnetism is present, or where there is excessive dust.
magnetism is present, or where there is excessive dust.
2. Notes for repair
1) Before replacing a component part, first disconnect the power supply lead wire from the unit
2) All equipment, measuring instruments and tools must be grounded.
3) The workbench should be covered with a conductive sheet and grounded.
2) All equipment, measuring instruments and tools must be grounded.
3) The workbench should be covered with a conductive sheet and grounded.
When removing the laser pick-up from its conductive bag, do not place the pick-up on the bag. (This is
because there is the possibility of damage by static electricity.)
because there is the possibility of damage by static electricity.)
4) To prevent AC leakage, the metal part of the soldering iron should be grounded.
5) Workers should be grounded by an armband (1M
5) Workers should be grounded by an armband (1M
Ω
)
6) Care should be taken not to permit the laser pick-up to come in contact with clothing, in order to prevent
static electricity changes in the clothing to escape from the armband.
7) The laser beam from the pick-up should NEVER be directly facing the eyes or bare skin.
Resistor
(1 Mohm)
(1 Mohm)
Conductive
Sheet
Sheet
Resistor
(1 Mohm)
(1 Mohm)
Armband
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