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Great tape deck manual!
I'm very positively surprised, because it is a very long manual, lot of pages, drawings, diagrams, description of how to make the alignment and adjustment procedures.
It is as good as the old "Naka" manuals from the 1970's - if somebody have seen them, they know what I mean by that.
I recommend to buy this very much !
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I am a vintage hifi collector. No way to fix that device without the appropriate service manual...thanks to your site I got it and every thing is easier now. I got the manual right after ordering: fast cheap accurate ... thank you
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Wonderful job clear. Qick fantastic. These people are really good. If even a problem arise they are wonderful assisting you. These scheme is so net despite this is a very old TV. Thank you for everything!!!!!!!!
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Detailed schematic diagram, manual for professionals
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Good service manual,exploded view,adjusment and test point locations,head alignment,mechanical checks and adjusments,all perfect.
WM-GX400
SECTION 3 ADJUSTMENTS
3-2. ELECTRICAL ADJUSTMENTS
Note: 1. Supplied voltage: 3 V (DC) 2. Switch and control position VOLUME control SPEAKER/HEADPHONE switch AVLS switch FUNCTION switch ISS switch
3-1. MECHANICAL ADJUSTMENTS
PRECAUTION 1. Clean the following parts with a denatured alcohol-moistened swab : record/playback/erase head pinch roller capstan rubber belts 2. Demagnetize the record/playback/erase head with a head demagnetizer. (Do not bring the head demagnetizer close to the erase head.) 3. Do not use a magnetized screwdriver for the adjustments. 4. After the adjustments, apply suitable locking compound to the parts adjusted. 5. The adjustments should be performed with the rated power supply voltage unless otherwise noted. 6. Power supply voltage : 3V DC. Torque Measurement
Mode Forward/Reverse Torque Meter CQ-102C Meter Reading 1.97 to 3.92 mN � m (20 to 40 g � cm) (0.28 to 0.55 oz� inch) 0.05 to 0.49 mN � m (0.5 to 5.0 g � cm) (0.007 to 0.07 oz� inch) CQ-102RC 0.05 to 0.49 mN � m (0.5 to 5.0 g � cm) (0.007 to 0.07 oz� inch) more than 4.90 mN � m (50 g � cm) (0.7 oz� inch)
: maximum : i (headphone) : OFF : OFF :1
TAPE DECK SECTION
Test Tape
Type WS-48A Signal 3 kHz, 0 dB
0 dB = 0.775 V
Used for Tape Speed Adjustment
Tape Speed Adjustment Procedure:
test tape WS-48A (3kHz, 0dB) set 16� frequency counter
Forward Back Tension Reverse Back Tension
CQ-102C
i headphone jack (J301)
Fast Forward and Rewind
CQ-201B
1. Set REC TIME switch (S706) to NORMAL (4.8cm/s). 2. Play back the center portion of tape in REVmode, adjust RV602 so that the reading on the frequency counter becomes 3,000 Hz. 3. Set REC TIME switch (S706) to DOUBLE (2.4cm/s). 4. Play back the center portion of tape in REVmode, adjust RV601 so that the reading on the frequency counter becomes 1,500 Hz. Specifications: NORMAL (4.8cm/s) : 2,985Hz - 3,015Hz DOUBLE (2.4cm/s) : 1,485Hz - 1,515Hz 5. Confirm the frequency difference between the beginning and the end of tape should be 1.5%. NORMAL (4.8cm/s) : 45Hz DOUBLE (2.4cm/s) : 22.5Hz Adjustment Location:
[MAIN BOARD] (SIDE B)
TP2 GND
IC1 TP1 IC301
RV602
RV601
RV601: Tape Speed Adjustment (2.4cm/s) RV602: Tape Speed Adjustment (4.8cm/s)
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