Philips MCM2300 Schematic

3.0

2014

1428

Technical Specification

2.

module：MCM2300

TEST CONDITIONS:

1.POWER SUPPLY: AC.Accordiing to Ver

2.REF OUTPUT: 4 Ω 1W , Sound effect off

3.FM MONO: 22.5KHz Dev,1KHz MODULATION ,75Ω IMPEDANCE ,60dBu

4.FM STEREO : MAIN+SUB = 50KHz, PILOT : 10KHz,COMPOSITE: 40.0KHz

FM SECTION：

UNIT

1

2

3 dBf 20 26 10 10
4dB6560
5 40 25

6 S/N

7 % 1 2 0.2 0.2
8 dB45405858

9

10 1KHz dB 25 18 39 39
11 1KHz W _ 5±1dB 5.7/5.7 5.7/5.8

CD SECTION：

NO TEST ITEMS

1 1KHz %
2 dBA 82 77

3

4dB±3

5 CHANNEL SEPARATION

6nW_
7nW_
8 W _ 5±1dB

FM IF REJECTION 98MHZ S/N=26dB

IMAGE REJECT 98MHZ S/N=26dB

STEREO CHANNEL SEPARATION

TOTAL HARMONIC DISTORTION

FREQUENCY RESPONSE AT

LOUDSPEAKER OUT

Fvequency Range

26dB QUENTING SENSITIVITY

-3dB LIMITING POINT

OVERALL DISTERTION

MODULATION HUM

TUNING SENS

THD 10% POWER

S/N (1KHz,A-weightde)

CHANNEL DIFFERENCE (1KHz)

Residual noise (Vol min)

HUM

10% THE POWER

L/R

1K

10K

MHz

90.1 16 22 14 13

98.1 16 22 13 13

106.1 16 22 13 13

MONO 65 60 68 68

ST 55 50 64 65

90MHz dBf _ 19-35 18 18
98MHz dBf _ 19-35 18 18

106MHz dBf _ 19-35 18 18

30Hz dB _ ±3

20KHz dB _ ±3

LdB40

RdB40

LdB35

RdB35

dBf

dB

UNIT NOM. LIMIT

NOM.

87.5 87.5 87.5 87.5
108 108 108 108

≤0.8 ≤1 0.1/0.1

LIMITNO TEST ITEMS

_ 0.1/0.1 0.1/0.1

_68

_68

_64

_64

≤40

≤150 15

TEST DATA

42#

113 113
113 113

TEST DATA

42# 2#

86

∕∕
∕∕

1

5.7/5.7

2#

0.1/0.1
87

67
67
61
61

1

15

5.7/5.7

Technical Specification

AUX SECTION：

NO

1 1KHz W _ 75±1dB
2 W _ 5±1dB 5.6/5.6 5.5/5.5

3

4%

5

6dB±3

7

8 mV 800 ±200 700 700

9 dBA
10 nW ­11 nW -

USB SECTION：

NO TEST ITEMS UNIT

1 1KHz %

2 dBA 67 65

3

4dB0

5 CHANNEL SEPARATION

6nW_

7nW_

8 W _ 5±1dB

L/R OUTPUT POWER (10% THD, Ohm,1KHz)

FREQUENCY RESPONSE AT

LOUDSPEAKER OUT

CHANNEL SEPARATION

DIFFERENCE

(RATED OUTPUT

INPUT SENSITIVITY(RATED OUTPUT POWER AT

RESIDUAL NOISE (VOL.MIN.with signal ) A-WEIGHTED

TOTAL HARMONIC DISTORTION

FREQUENCY RESPONSE AT

LOUDSPEAKER OUT

THD 30% POWER

CHANNEL DIFFERENCE（1KHz）

LEVEL

S/N RATIO (1KHz,A-WEIGHTED)

HUM (VOL.MIN-MAX-20dB,without signal)

CHANNEL DIFFERENCE (1KHz)

TEST ITEMS

L/R

AMPLIFIER DISTORTION

1K

10K

FM 1KHz 67.5KHz DEV,68dBf

CD disc1-6dB track35

1KHz,10%THD

S/N (1KHz,A-weightde)

L/R

1K

10K

Residual noise (Vol min)

HUM

10% THE POWER

40Hz dB _ ±3

20KHz dB _ ±3

≤0.8 ≤1

L dB 40 _ 47 47

R dB 40 _ 47 47

L dB 35 _ 55 56

R dB 35 _ 55 56

dB - ±5 -0.8 -0.9

dB - ±3 1 0.9

82 77

NOM. LIMIT

≤1 ≤2

125Hz dB _ ±3
20KHz dB _ ±3

L dB 45 _ 69 68

R dB 45 _ 69 68

L dB 30 _ 59 59

R dB 30 _ 59 59

LIMITNOM.UNIT

_

≤150

≤40

≤2

≤40

≤150

TEST DATA

42# 2#

∕∕
∕∕

0.1/0.1 0.1/0.1

0.1/0.1 0.1/0.1

85 85
10 10

11

TEST DATA

42# 2#

0..1/0.1 0..1/0.1

86

∕∕
∕∕

0..1/0.1 0..1/0.1

11
11

5.6/5.6

85

5.6/5.6

3.Safety instruction

1. General safety

Safety regulations require that during a repair:

. Connect the unit to the mains via an isolation transformer.

. Replace safety components indicated by the symbol

by components identical to the original ones. Any

only

other component substitution (other than original type)

may increase risk of fire or electrical shock hazard.

Safety regulations require that after a repair, you must

return the unit in its original condition. Pay, in particular,

attention to the following points:

. Route the wires/cables correctly, and fix them with the

mounted cable clamps.

. Check the insulation of the mains lead for external

damage.

. Check the electrical DC resistance between the mains

plug and the secondary side:

1) Unplug the mains cord, and connect a wire between

the two pins of the mains plug.

2) Set the mains switch the “on” position (keep the

mains cord unplug).

3) Measure the resistance value between the mains

plug and the front panel, controls, and chassis

bottom.

4) Repair or correct unit when the resistance

measurement is less than 1M

5) Ve

rify this, before you return the unit to the

customer/user (ref. UL-standard no. 1492).

6) Switch the unit “off”, and remove the wire between

the two pins of the mains plug.

¡

.

2.Laser safety

his unit employs a laser. Only qualified service personnel

T

,

may remove the cover, or attempt to service this device

(due to possible eye injury).

Laser device unit

Type : Semiconductor laser GaAlAs

Wavelength : 650nm (DVD)

: 780nm (VCD/CD)

Output power : 7mW (DVD)

: 10mW (DVD /CD)

Beam divergence: 60 degree

Note: Use of controls or adjustments or performance of

procedure other than those specified herein, may result in

hazardous radiation exposure. Avoid direct exposure to

beam.

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5.Set Wiring Diagram