Akai PD-X4440R, Service Manual

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SPECIFICATIONS
Power Supply : AC - DC Adaptor 100V: 6V DC 60Hz Battery: 3V (AA x 2)
120V: 6V DC 60Hz
230V: 6V DC 50Hz
110/220V: 6V
Headphone Output Load : 16 ohm or 32 ohm
Reference Output : 5mW
Input Signal Source : CBS SONY YED7 (PTD-001) SONY
PHILIPS SBC 444A (TCD-725, TDC-731, TDC-712) A. Bex
Remarks : All data should be checked at main unit.
GENERAL TEST CONDITION
PERSFORMANCE SPECIFICATIONS
GENERAL
OUTPUT (at 1kHz 0dB level): Headphones / earphones (stereo mini-jack)
15mW + 15mW at 16ohms to 32ohms
POWER REQUIREMENTS: 3V (2 x AA / LR6 / MN 1500) alkalline batteries,
or DC IN 6V, 350mA power adaptor
Polarity of plug
DIMENSIONS: Approx. 153 x 30 x 128 mm (W/H/D)
WEIGHT: Approx. 200g (not include batteries)
OPERATING VOLTAGE:
U.S.A. Middle East and Australia: UK and Germany
120V AC±5% 60Hz 240V AC±5% 50Hz 230V AC±5% 50Hz
Chile: Singapore, Malaysia & Thailand Japan
230V AC±5% 50Hz 200-240V AC±5% 50 Hz 100V AC±5% 50/60Hz
We continually strive to improve our products, specificatons may change without notice.
Earphone Output:
UNIT NOMINAL LIMIT
1 10% THD Output Power (1kHz, 0dB) (16 or 32ohm) mW - 12
*2 Signal to Noise Ratio (1kHz) dB 76 70
*3 Channel Separation (1kHz, 0dB) dB 55 45
*4 Total Harmonic Distortion 1kHz % 0.3 1
5 Frequency Response (1kHz, 0dB) 100Hz dB ±1 ±3
10kHz dB ±1 ±3
20kHz dB ±3 ±6
*with external A filter
Playability Testing
UNIT LIMIT
1 Interruption (PHILIPS SBC-444A) mm 0.6
2 Black Dot (PHILIPS SBC-444A) mm 0.6
3 Finger Print (ESP OFF) (PHILIPS SBC-444A) - TN0, 18, 19
4 Vertical (A.Bex TDC-731R) mm 0.5
5 Eccentricity (A. Bex TDC-712R) µm 140
TEST ITEMS
TEST ITEMS
ELECTRICAL PARTS LIST
Ref. No. Mfr's Part No. Qty.
PCB
REMOTE PCB PCB WRC7-01-01 164x80x0.8mm/6 (FR4) 033-00WRC7-100 1
CONTROL PCB PCB CDM29R-01-02 190x81.5x0.8mm/3 (94HB) 033-CDM29R-101 1
SINGLE SIDED
MAIN PCB PCB CDM29W-01-01 203x132x0.8mm/2 (FR4) 033-CDM29W-100 1
REMOTE CONTROL SECTION - (OPTIONAL)
RESISTORS
R801,802,805,806 CHIP RESISTOR 10 Kohm +-5% 1/16W (T&W) 001-310356-016 4
(0402/1005)
R807,808 CHIP RESISTOR 100 Kohm +-5% 1/16W (0402/1005) 001-310456-016 2
R803 CHIP RESISTOR 1.2 Mohm +-5% 1/16W (0402/1005) 001-312556-016 1
R804 CHIP RESISTOR 51 Kohm +-5% 1/16W (0402/1005) 001-351356-016 1
CAPACITORS
C801,802,803 CHIP CAP 0.01 uF/16V +-10% (0402/1005) 003-510314-016 3
(GRM36X7R103K16PT)
C804,808 CHIP CAP 0.1 uF/16V +80-20% (0402/1005) 003-510484-016 2
C805 CHIP TANTALUM CAP 10 MFD/4V +-20% 006-A10000-04D 1
(A CASE:3216)
INTEGRATED CIRCUIT
IC801 ICDISPLAYDRIVER-LCD SPL10A2-203A-C (SUNPLUS) 010-530102-000 1
DIODES
D802 CHIP DIODE DAN202U 011-040202-003 1
D801 CHIP DIODE DA227 (ROHM) 011-040227-000 1
SWITCHES
SW802,804,807,809 LUMI SWITCH LS7A2M-T (87-A90-665-18) 021-007200-000 4
SW801,803,806,808,811 CHIP TACT SW SKQLLA/F1841501M/SKQLLAE010 021-SKQLLA-000 5
SKQLLAE011/SKQLLAE012 (87-036-342-08J)
MISCELLANEOUS
ZEBRA CONNECTOR 23.6x1.5x1.9mm 100-052301-190 1
LCD-P-02D-2315SM000P JT4-02263 112-002263-000 1
23.5x15.4x1.7mm TRANSIMISSIVE/POSITIVE
HEADPHONE JACK HSJ1715-01-110 (BLACK) 116-001715-001 1
TC38-072-01/EJS-3-0935B/EJ-3513 (BK)
REM.CONTROL LINE CORD L=760mm MOULDING 122-008020-070 1
SR 8C CABLE GREY SLDG=1mm
H-P SET HP3215-009LT GREY, w/3.5mm STEREO (For w/charge) 114-013215-000 1
SIL.GREY WIRE, MOLD:63223,SPY SIL,PNT BLK
(F114-010810-000) HEADPHONE SET (For w/o charge) 114-010103-000 1
#AR-103/AR103-LT IN EAR
APD-EI35GS&&350MA/SO 230V:6VDC CE STD PLUG: 133-020635-017 1
3.5x8 (35V-D0635/AKAI PD-X4440)
MAIN UNIT
RESISTORS [All are +-5% 1/16W (1/8W) tape & wheel resistors unless otherwise specified]
R622,623 CHIP RESISTOR 8.2 ohm +-5% 1/10W (For w/charge) 001-382850-010 2
R511 CHIP RESISTOR 4.7 Kohm +-5% 1/16W (0603/1608) 001-347252-016 1
R401,402 CHIP RESISTOR 10 Kohm +-5% 1/16W (T&W) 001-310356-016 2
(0402/1005)
R101 *CdF RESISTOR 100 ohm 001-010151-016 1
R104,532 *CdF RESISTOR 1 Kohm 001-010251-016 2
R501,507,509 *CdF RESISTOR 10 Kohm 001-010351-016 3
R103,502,505,531,610 *CdF RESISTOR 100 Kohm 001-010451-016 5
R121 RESISTOR 18 Kohm 001-018351-016 1
R611 *CdF RESISTOR 22 Kohm 001-022351-016 1
R102,105 *CdF RESISTOR 4.7 ohm 001-047851-016 2
Description
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