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DK-A1H/DK-A1H(BK)

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No. S5722DKA1H///

• In the interests of user-safety the set should be restored to

its original condition and only parts identical to those

specified be used.

iPod is a trademark of Apple Inc.,
registered in the U.S and other countries. 

CHAPTER 1. GENERAL DESCRIPTION
[1]  AC Power Supply Cord And AC Plug Adaptor1-1
[2] Specifications .................................................1-1
[3]  Name Of Parts................................................1-2

CHAPTER 2. ADJUSTMENTS
[1] Test Function ..................................................2-1
[2]  Test Mode Initial Display.................................2-1
[3] Key Test..........................................................2-2
[4] Tuner Test.......................................................2-2
[5]  User Reset (ALL Clear) ..................................2-2

CHAPTER 3. MECHANICAL DESCRIPTION
[1] Disassembly .................................................. 3-1

CHAPTER 4. DIAGRAMS
[1] Block Diagram ................................................4-1

CHAPTER 5. CIRCUIT DESCRIPTION
[1] Voltage........................................................... 5-1

[1]  Notes On Schematic Diagram .......................6-1
[2]  Types Of Transistor And LED........................6-1
[3]  Chart Of Connecting Wires............................6-2
[4] Schematic Diagram .......................................6-4
[5]  Wiring Side Of PWB ......................................6-18

CHAPTER 7. OTHERS
[1]  Function Table Of IC......................................7-1
[2] FL DISPLAY ..................................................7-6

Parts marked with "      " are important for maintaining the safety of the set. Be sure to replace these parts with
specified ones for maintaining the safety and performance of the set.

CONTENTS

SHARP CORPORATION

(For Philippines, Middle East/Africa, Singapore, Australia/

New Zealand)

(For Philippines, Middle East/Africa, Singapore, Australia/

New Zealand)

DK-A1H/DK-A1H(BK)

 – 2

 

Example:

Indicates lead-free solder of tin, silver and copper.

Lead-free wire solder for servicing

PWB-A

92LPWB6737MANS

92LPWB6737DPLS

PWB-C

MAIN

PWB-B

92LPWB6686PODS

iPOD

MICOM (C1) / CONTROL (C2) / KEY (C3) / AUDIO PRO (C4) / 

RE-FLASH MICOM (C5) / SUB (C6) / LED L-CH (C7) / LED R-CH (C8)

"MAIN, iPOD, MICOM, CONTROL, KEY, AUDIO PRO, RE-FLASH MICOM, SUB, LED L-CH, LED R-CH PWB" of 
this model employs lead-free solder. The LF symbol indicates lead-free solder, and is attached on the PWB and 
service manuals.The alphabetical character following LF shows the type  of lead-free solder.

When fixing the PWB soldered with the lead-free solder, apply lead-free wire solder. Repairing with conventional 
lead wire solder may cause damage or accident due to cracks.
As the melting point of lead-free solder (Sn-Ag-Cu) is higher than the lead wire solder by 40 C, we recommend 
you to use a dedicated soldering bit, if you are nto familiar with how to obtain lead-free wire solder or soldering 
bit, contact our service station or service branch in your area.

As the melting point of lead-free solder (Sn-Ag-Cu) is about 220 C which is higher than the conventional lead 
solder by 40 C,and as it has poor solder wettability, you may be apt to keep the soldering bit in contact with the 
PWB for extended period of time. However, since the land may be peeled of for the maximum heat-resistance 
temperature of parts may be exceeded, remove the bit from the PWB as soon as you confirm the steady 
soldering condition.
Lead-free solder contains more tin, and the end of the soldering bit may be easily corrected. Make sure to turn 
on and off the power of the bit as required. If a different type of solder stays on the tip of the soldering bit, it is 
alloyed with lead-free solder. Clean the bit after every use of it.
When the tip of the soldering bit is blackened during use, file it with steel wool or fine sand paper.
Be careful when replacing parts with polarity indication on the PWB silk.

i

DK-A1H/DK-A1H(BK)

1 – 3

AC 220 - 240 V, 50 Hz

Power consumption Power on: 28 W

Power stand-by: 0.6 W (*)

PMPO: 64 W
Front Speaker:
MPO: 10 W (5 W + 5 W) (DIN 45 324)
RMS: 4 W (2 W + 2 W) (DIN 45 324)
RMS: 4 W (2 W + 2 W) (DIN 45 500)

Subwoofer:
MPO: 12 W (6 W + 6 W) (DIN 45 324)
RMS: 10 W (5 W + 5 W) (DIN 45 324)
RMS: 6 W (3 W + 3 W) (DIN 45 500)

1-way type light-up speaker system
Front Speakers: 6.5 cm (2-1/2") - 12 ohms - 
Full Range
Subwoofer: 10 cm (4") - 8 ohms - Woofer

Front Speakers: 4W/Channel
Subwoofer: 10W/Channel

Front Speakers: 2W/Channel
Subwoofer: 5W/Channel

Headphones: 16 - 50 ohms 
(recommended: 32 ohms)
Video output: 1Vp-p

Auxiliary (audio signal): 
500 mV/47 k ohms 

Width: 400 mm (15-3/4") 
Height: 145 mm (5-3/4") 
Depth: 251 mm (9-7/8")

4.3 kg (9.5 lbs.)

FM: 87.5 - 108 MHz
AM: 522 - 1620 kHz

AC 220 - 240 V, 50 Hz

Power consumption Power on: 28 W

Power stand-by: 0.6 W (*)

Front Speaker:
RMS: 4 W (2 W + 2 W) (10% T.H.D.)
RMS: 4 W (2 W + 2 W) (0.9% T.H.D.)

Subwoofer:
RMS: 10 W (5 W + 5 W) (10% T.H.D.)
RMS: 6 W (3 W + 3 W) (0.9% T.H.D.)

1-way type light-up speaker system
Front Speakers: 6.5 cm (2-1/2") - 12 ohms - 
Full Range
Subwoofer: 10 cm (4") - 8 ohms - Woofer

Front Speakers: 4W/Channel
Subwoofer: 10W/Channel

Front Speakers: 2W/Channel
Subwoofer: 5W/Channel

Headphones: 16 - 50 ohms 
(recommended: 32 ohms)
Video output: 1Vp-p

Auxiliary (audio signal): 
500 mV/47 k ohms 

Width: 400 mm (15-3/4") 
Height: 145 mm (5-3/4") 
Depth: 251 mm (9-7/8")

4.3 kg (9.5 lbs.)

FM: 87.5 - 108 MHz
AM: 522 - 1,620 kHz

*This power consumption value is obtained when the demonstration
mode is cancelled in the power stand-by mode.

QACCEA002AW00

QPLGA0004AWZZ

*This power consumption value is obtained when the demonstration
mode is cancelled in the power stand-by mode.

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DK-A1H/DK-A1H(BK)

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