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Complete manual with clear schematic diagrams and printed circuit board layouts of two variants of the headset and the transmitter an old and a new version.
Also shows how the headset and the transmitter is opened and how transmitter and receivers can be adjusted and where to measure.
I had no problems to repair the headset using this service manual.
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Excellent printing quality. A complete and very useful manual with all details.
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This is a great site. I placed my order and by the next am it was available for download. Had some problems with some missing copy on some pages. Once I brought the error to the OMC's attention, the issue was resolved. I'll come back again.
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Mi spiace per non poter scrivere in inglese... ma sono veramente soddisfatto del servizio offerto. Grazie..!!
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The quality of this manual is good. It has all schematics and setup information for both the MDS-B3 and the MDS-B4. The scan quality is quite good, all pages are readable, This service manual also contains scans of the operating instructions from the User manual.
REQ C
REQ H
DATA C
CH CLK
DATA H
CH CON
TAPE L/R
COM+B
CH MUTE
S MUTE
KRC-408/488
OUT
MOTOR
PACK IN
T MODE
FWD/REV
DSI
LCD DATA IN
REMOTE
LCD DATA OUT
LCD CE
LCD CLK
METAL
DOLBY
MUSIC
PANEL ON/OFF
RST
5
LCD KEY
10
2
J4 J1 CD/MD CHANGER
1200mV IC2 CD L/R AM (TAPE)1708mV (CD-CH)3635mV (FM) (AM) IC4 KM:1600mV 615mV LEVEL
ANT 8
(FM) (AM) KM:360mV 168mV E:190mV 162mV COM+B CD L/R
A1 MPX SP OUT
B.U. 14V POWER IC E:1100mV 830mV
E-VOL
FM ANT MP IN
AM ANT OUT LF 4ch
IC1
OUT RF SDA OUT LR SCK OUT RR
FM+B
AM+B
Q201 SVR SW IC7
B.U. 5V AMP DRIVER MUTE
S-METER S METER PWR STBY
Q41-44 SYSTEM u-COM MUTE PRE OUT Q121
(TAPE)1642mV (CD-CH)3495mV E:1060mV 780mV AM +B SUB
J5/6 AUDIO OUT
PLL PLL CLK B.U. (FM) (AM)
PLL DATA ACC MUTE
IC6 FM +B KM:1500mV 570mV
MOTOR SUB+ PHONE TEL-MUTE ILL ON
SUBJ2
Q116,117 ANT-CON Q94-96 P-CON P-CONT
BLOCK DIAGRAM
DSI PANEL Q118 ON/OFF
Q105 IC5
341mV DET ACC
Lch DET B.U.
COM L/R
TAPE
Rch B.U. 5V SUB MAIN METAL PAN 5V DOLBY
EQ AMP
M Q104 Q84,85
M2 M1 Q101 COM+B 8V AVR
MUSIC T-END
DOLBY Ref.94 P.ON 5V Q80,81 B.U. 5V
Ref.95 STBY PACK
Ref.105
IN
Ref.103
Ref.102 Q87-89
FWD
RST SW ILLUMI AVR REMOTE CONTROL AM+B IC1
REV IC2 MODE Q92
Lch Q93
LCD DRIVER WITH HD1
Rch
FM+B KEY MATRIX
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