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Exactly the JVC service manual and schematics that I was looking for - delivered just hours after order. Will do business again!
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This is a fantastic site, ad I have been a returning satisfied cusumer!
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Je suis audiophile belge, électronicien et créateur d'enceintes acoustiques.
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Frédéric
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The cover page was a little scary, very dark but readable. The remainder of the document was better copy and easily readable. Why would I give 5 Stars? (1) PRICE, (2) AUTHENTICITY, It was the real deal, filled with service information, including the specific information I required. (3) PRIVACY, I didn't start to get slammed with spam. (4) EASY TRANSACTION. Painless. (5) COMPLETE, I have found several manuals here, that I could find nowhere else. (6) I will be a repeat customer!
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Well done!!! I found what I need to have, indeed!
Furthermore, due to my hobby is repairing vintage equipments, I added this web site in my desk toolbar because I have in mind to search further service manuals. Thanks a lot www.owner-manuals.com !
Regards, Maurizio
ADJUSTMENT
KEY MATRIX Output Input P60 / KR0 TUN � UP TUN � DOWN AF PTY P61 / KR1 � � � RT P62 / KR2 � � MEMO � SET AUTO PRESET P63 / KR3 TRAFFIC PRESET + PRESET � �
VR1
VOLUME
A MAIN C.B
34
6
5
P70 / KR4 P71 / KR5 P72 / KR6 P73 / KR7
IC, TC9418FN Pin No.
1 2 3 4 5 6 7 8 9 ~ 12 13 14 15 16 17 18 19 20 21 22 23 24
TP1(VT)
L102 IC1 L103
TC101
Pin Name
XIN XOUT VXT DOUT DIN CK CE TEST I/O 1 ~ I/O 4 TU OUT FM OUT IF REQ
I/O
I O � O I I I I � O O � Output serial data. Input serial data. Input clock. Chip enable input. Not used. Not used. Crystal oscillator pin. (75 kHz)
Description
7
SFR801 GND IFT105
1
PHONES J1
7
5
L101 BAR ANT
2
Output TUNER/TAPE. �H� = TAPE, �L� = TUNER. Output band. �H� = FM, �L� = AM.
<TUNER SECTION>
Not used. 1. AM IF Adjustment I � I I � � I I Input IF signal. Connected to ground. Input FM band broadcast signal. Input AM band broadcast signal. Power supply. Output phase comparator. (Not used) Output phase comparator. Input in�habit. (Connected to power supply) IFT105 ................................................................ 450kHz 2. FM IF Adjustment L103 ................................................................. 10.7MHz 3. AM VT Check Settings : � Test point : TP1 (VT) Method : Set to AM 531kHz and check that the test point voltage is 1.1V ± 0.3V. Then set to AM 1602kHz and check that the test point voltage is less than 6.5V. 4. FM VT Check Settings : � Test point : TP1 (VT) Method : Set to FM 87.5MHz and check that the test point voltage is 3.0V ± 0.1V. Then set to FM 108.0MHz and check that the test point voltage is less than 9.5V. 5. AM Tracking Adjustment L101 .................................................................... 630kHz TC101 ............................................................... 1440kHz 6. FM Tracking Adjustment L102 ............................................................... 87.5MHz
<TAPE PLAYER SECTION>
7. Tape Speed Adjustment � Test tape : TTA�100 � Test point : PHONES JACK (J1) � Tape selector : NORMAL � S-BASS : OFF � Volume : MAX � Adjustment location : SFR801 Method : Play back the test tape and adjust SFR801 for 3015Hz ± 10Hz(FWD) and 3015Hz ± 45Hz (REV). Then confirm WOW is less than 0.50%. Settings :
IF GAIN IF IN GND FM IN AM IN VDD DO2 DO1 INH
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