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XL-MP150H/MP150E

1 – 6

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XL-MP150H/MP150E

2 – 1

Audio

XL-MP150H/MP150E

Service Manual

XLMP150H

Market

E

 

• Driving Force Check

• Torque Check

fL: Low-range frequency

fH: High-range frequency

• AM IF/RF

Signal generator: 400 Hz, 30%, AM modulated

1. Description of the "FM IF Adjustment" is not carried on this Manual.

It is because the IF coil in the FM front end section has been best
adjusted in the factory so that its further adjustment is not needed
at the field. When replacing the FM front end assembly, no adjust-
ment is needed either.

2. The parts in the FM front end section are prepared in a complete

unit, so you can't obtain each part individually.

• Tape Speed

•

Since this CD system incorporates the following automatic adjust-
ment functions, readjustment is not needed when replacing the
pickup. Therefore, different PWBs and pickups can be combined
freely.

Each time a disc is changed, these adjustments are performed
automatically. Therefore, playback of each disc can be performed
under optimum conditions.

1) Offset adjustment (The offset voltage between the head amplifier

output and the VREF reference voltage is compensated  inside  the
IC.)

*

Focus offset adjustment

*

Tracking offset adjustment

2) Tracking balance adjustment

3) Gain adjustment (The gain is compensated inside the IC so that the

loop gain at the gain crossover frequency will be 0 dB.)

*

Focus gain adjustment

*

Tracking gain adjustment

*

'CHECKING'

If Error is detected, 'CHECKING' will be displayed instead of 'ER-
CD**'. 'ER-CD**' display will only be displayed when error had been
detected for the 5th times.

Play: TW-2111

Over 80 g

Play: TW-2111

30 to 80 g.cm

Fast forward: TW-2231

70 to 180 g.cm

Rewind: TW-2231

70 to 180 g.cm

AM IF

450 kHz

1,620 kHz

T351

*1

AM Band 
Coverage

—

522 kHz

(fL): T306
1.1 ± 0.1 V

*2

AM Tracking

990 kHz

990 kHz

(fL): T303

*1

*1. Input: Antenna

Output: TP302

*2. Input: Antenna

Output: TP301

AM

LOOP

ANTENNA

IC302

T351

IC303

L354

T303

T306

CNP302

SO301

FE301

TP302

TP301

AM TRACKING fL

AM BAND
COVERAGE fL

AM IF

FM ANTENNA
TERMINAL

TUNER PWB-C

20

R357

R356

C393

Normal 
speed

MTT-111

Variable 
Resistor in 
motor.

3,000 ± 30 Hz

Speaker Ter-
minal (Load 
resistance: 6 
ohms)

01

When Pickup set inner position, inner switch cannot detect 
'ON' level for 10 secs.

10*

CAM error. Can't detect CAM switch when CAM is moving. 

11*

When it detect cam operation error during initialize process.

20*

TRAY error. Can't detect TRAY switch when TRAY is mov-
ing.

21*

When it detect TRAY operation error during initialize pro-
cess.

31

When it change to CD function, DSP cannot read initial data.

TAPE MECHANISM

Tape
Motor

Variable Resistor in motor

XL-MP150H/MP150E

2 – 2

• Setting the test mode

During stand-by mode, press ON/STAND-BY button while pressing

down the 

button and X-BASS/DEMO button. then, press the CD

button to enter the test mode.

IL isn’t done

OPEN/CLOSE operation is using manual.

IL isn’t done

<<

>>,<<

>>buttons make pick's slide possible.

IL isn’t done

to page 2-3

<<PLAY>> key input.

C D

T

E S T

A

Do TOC IL. Do normal play.
When these following key is input into PLAY key, track num-
ber can be appoint directly.

<<MEMORY>>
key input.

<<

1>> key: Track 4

<<

2>> key: Track 9

<<

3>> key: Track 15

Adjustment result automatically will
display as below for each 2 sec:
a) "FOF_XXXX"
b) "TOF_XXXX"
c) "TBAL_XX"
d) "TGAN_XX"
f) "FGAN_XX"
g) "RFLS_XX"

––––––––

<<STOP>> key input.

STOP

explanation:
a) Focus off set

= "FOF_XXXX"

b)Tracking off set

= "TOF_XXXX"

c)Tracking balance

= "TBAL_XX"

d)Tracking Gain

= "TGAN_XX"

f) Focus Gain

= "FGAN_XX"

g) RF level shift

= "RFLS_XX"

VOL — Last memory
P.GEQ — FLAT
X-BASS — OFF
To cancel: Power OFF

XL-MP150H/MP150E

2 – 3

Sliding the PICKUP with<<

>>, <<

>> button must only be

in STOP mode.

<<MEMORY/SET>> key input.

Laser ON.

<<MEMORY/SET>> key input.

Tracking OFF play at that specific point.

<<MEMORY/SET>> key input.

Tracking ON play from that specific point.

<<MEMORY/SET>> key input.

Adjustment result automatically will display as below for each 2 sec:
a) "FOF_XXXX"
b) "TOF_XXXX"
c) "TBAL_XX"
d) "TGAN_XX"
f) "FGAN_XX"
g) "RFLS_XX"

<<STOP>> key input.

STOP

explanation:
a) Focus off set

= "FOF_XXXX"

b)Tracking off set

= "TOF_XXXX"

c)Tracking balance

= "TBAL_XX"

d)Tracking Gain

= "TGAN_XX"

f) Focus Gain

= "FGAN_XX"

g) RF level shift

= "RFLS_XX"

VOL — Last memory
P.GEQ — FLAT
X-BASS — OFF
To cancel: Power OFF

A