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some of the writing is a bit blur but the part in the schmatic was great and i have fixed the machine thanks
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Well.. I'd searched for this manual and although I found many copies online I was pleased to find your website with a well balanced pricing system and easy to search and follow links. That together with the very quick response time was just what I was looking for.. being a very impatient tech.. ;-) I had the service manual in front of me within a short time.
Bookmarked.. and you can bet I will always come here first for my service & user manuals..
best regards
Ed(Tony) Foley
G7WHK
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I will definitely be back for more information when I need it.
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The service manual when downloaded and printed out was clear and easy to read. I would have liked to have been able to enlarge some details, but this was not possible as the file permissions did not allow this. The service was very good. The time taken from placing my order to downloading the document was only a few minutes.
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The manual is useful for trouble shooting for an old instrument. It saved money,and let me enjoy DIY.
GM-X922, GM-X1022
22
Three-channel mode, two-way system Connecting the Speaker
wires Output Terminals
The speaker output mode can be two-chan-
1. Expose end of the speaker wires Mid-high (Left) nel (stereo), one-channel (mono), or threeC1
speaker leads suit the mode according to nippers or a cutter. figures on the following pages.
Twist � When connecting to the speaker input, do not connect the RCA output. C1 Mid-high (Right) � When connecting to the RCA input, do not
by about 10 mm and twist using channel (stereo + mono). Connect the
L1 Woofer (Mono)
10 mm connect the speaker input.
Fig.
Two-channel mode (stereo) Three-channel mode, three-way system 2. Attach lugs to speaker wire ends.
Fig. 22 16
Lugs not supplied. High/mid-high
L2 C2
� Use pliers, etc., crimp lugs to wires. C1 (Left) (Left) Woofer/sub-woofer wire Speaker (Mono) (Right)
Lug Mid/mid-bass (Left)
L1
Fig. 17 C2 Mid/mid-bass L2 Fig. 20 (Right)
3. Connect speaker wires to the
High/mid-high
speaker output terminals. (Right) Fig. 23 � Fix speaker wires securely with the termi� Inductors (L1 and L2 in the diagrams) � After pass through the terminal cover, conact as low-pass filters. Capacitors (C1 nect the terminal and C2 in the diagrams) act as high-pass woofer/sub-woofer, and capacitors (C)
Speaker (Mono) are used for the high/mid-high.
One-channel mode (mono)
nal screws.
Terminal screw filters. Inductors (L) are used for the
� Remember when bridging an amplifier it will see only half of the original speaker Terminal cover Fig. 21
wire Speaker impedance. Therefore, you must use
output speakers that have ratings of 4 ohms or terminal higher. If you use speakers that have
Three-channel mode (stereo + mono) damage to the amplifier.
lower impedance ratings it may cause
4. Cover the terminals. but three channels can be achieved by solder them so they cannot be pulled
Fig. 18 channel/one-channel bridgeable amplifier, connected to the speaker wires, secure or
The power amplifier is basically a two� When the inductors and capacitors are
combining the stereo and mono modes loose. Tape or use heat shrink on the using inductors and capacitors. joints to prevent short circuits.
Fig. 19
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