Marantz SR4120 Service Manual
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Also See for SR4120:
- User manual (25 pages) ,
- Specification sheet (2 pages) ,
- Service manual (22 pages)
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Service
Manual
1.
TECHNICAL SPECIFICATION ............................................................................... 1
2.
WIRING DIAGRAM ................................................................................................. 2
3.
BLOCK DIAGRAM .................................................................................................. 3
4.
SCHEMATIC DIAGRAM AND PARTS LOCATION ................................................. 5
5.
MICROPROCESSOR AND IC DATA .................................................................... 16
6.
ADJUSTMENT PROCEDURE .............................................................................. 18
7.
EXPLODED VIEW AND PARTS LIST ................................................................... 21
8.
ELECTRICAL PARTS LIST ................................................................................... 23
Please use this service manual with referring to the user guide (D.F.U) without fail.
Printed in Japan
RECEIVER SR4120
TUNING/PRESET
DOWN
UP
TAPE MONI
AUX
STANDBY
BASS
POWER
ON/STANDBY
PHONES
1
SPEAKERS
2
-
+
TABLE OF CONTENTS
SR4120
VOLUME
CD
PHONO
FM/AM
MIN
TREBLE
BARANCE
F/P
P.SCAN
MEMO
-
+
L
R
SR4120/
U1B
Receiver
MAX
FM MODE
309W855010 AO
First Issue:2000.10
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Summary of Contents for Marantz SR4120
-
Page 1: Table Of Contents
Service SR4120/ Manual Receiver RECEIVER SR4120 TUNING/PRESET VOLUME DOWN TAPE MONI PHONO FM/AM STANDBY BASS TREBLE BARANCE POWER ON/STANDBY PHONES SPEAKERS P.SCAN MEMO FM MODE TABLE OF CONTENTS TECHNICAL SPECIFICATION ................1 WIRING DIAGRAM ....................2 BLOCK DIAGRAM ....................3 SCHEMATIC DIAGRAM AND PARTS LOCATION .......... - Page 2 MARANTZ Parts for your equipment are generally available to our National Marantz Subsidiary or Agent. ORDERING PARTS : Parts can be ordered either by mail or by Fax.. In both cases, the correct part number has to be specified.
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Page 3: Technical Specification
1. TECHNICAL SPECIFICATIONS FM TUNER SECTION FREQUENCY RANGE ........................87.5 - 108.0 MHz USABLE SENSITIVITY ....................... IHF 2.0 V/11.3 dBf SIGNAL TO NOISE RATIO ....................MONO/STEREO 70/65 dB DISTORTION ........................MONO/STEREO 0.3/0.5 % STEREO SEPARATION .......................... 1 kHz 32 dB A.C.S .............................. -
Page 4: Wiring Diagram
2. WIRING DIAGRAM... - Page 5 3. BLOCK DIAGRAM...
- Page 6 4. SCHEMATIC DIAGRAM AND PARTS LOCATIONS MAIN SCHEMATIC DIAGRAM...
- Page 7 MAIN BOARD IC51 Q501 Q394 Q396 IC22 IC21 Q411 Q303 Q305 Q202 Q201 IC23 Q312 Q413 Q315 Q309 Q307 Q311 Q412 Q319 Q313 Q304 Q308 Q314 Q415 Q329 Q381 Q382 Q385 Q384 Q330 Q316 Q310 Q320 Q414 Q321 Q325 Q327 Q323 Q317 Q318...
- Page 8 FRONT SCHEMATIC DIAGRAM...
- Page 9 FRONT BOARD Q909 Q913 Q912 Q905 Q910 Q908 Q904 Q903 Q914 Q902 IC02 Q915 IC61 IC91 Q911 Q905 Q901 Q907...
- Page 10 TUNER SCHEMATIC DIAGRAM...
- Page 11 TUNER BOARD Q16 Q15 Q17 IC4 Q13...
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Page 12: Block Diagram
5. MICROPROCESSOR DESCRIPTIONS 1. Block Diagram 2. Pin Configuration FIP SEG-21 -27V FIP SEG-22 CLOCK DATA AREA OPTION RDS ON OPTION PLL-ST PLL-D/I PLL-CLOCK STANDBY OPTION ANAM1313A PLL-D/O MODEL OPTION SP-2 POWER ON/OFF SP-1 STBY LED REMOTE IN REMOTE IN REMOTE OUT RESET X-OUT... - Page 13 3. Pin Functions PIN NO. SYMBOL DESCRIPTION +5V POWER SUPPLY 2,4,5 NOT USED FUNCTION MUTE MUTING WHEN CHANGE THE FUNCTION BUTTON TUNING DOWN INPUT OF ENCODER FOR TUNING DOWN TUNING UP INPUT ENCODER TUNING UP VOLUME DOWN OUTPUT TO CONTROL MOTOR VOLUME DOWN VOLUME UP OUTPUT TO CONTROL MOTOR VOLUME UP 10,11...
- Page 14 Key Matrix 1 kohm 1.5 kohm 1.8 kohm 2.7 kohm 3.3 kohm PIN17 SEARCH DISPLAY PTY SELECT PIN18 TUN/CH MODE P. SCAN MEMORY FM MODE TUNED-DN TUNED-UP PIN19 TAPE-MONI FM/AM PHONO PIN20 PIN21 6.MEASUREMENTS AND ADJUSTMENTS ALIGNMENT INSTRUCTIONS Equipment needed: AM Standard Signal Generator FM Standard Signal Generator Oscilloscope...
- Page 15 (1) FM, AM TRACKING VOLTAGE ADJUSTMENT (3) FM RF ADJUSTMENT (5) FM MPX VCO ADJUSTMENT AM, FM DC Voltmeter -- Connect to test point TP1 and GND Signal Generator ---- Connect to FM Ant. (FM 75 ohm) through Signal Generator ---- Connect to FM Ant. (FM 75 ohm) through the dummy. the dummy.
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Page 16: Exploded View And Parts List
7. EXPLODED VIEW AND PARTS LIST POS. VERS. PART NO. PART NO. DESCRIPTION COLOR (PCS) (MJI) WINDOW FL DISPLAY 309W158010 BADGE MARANTZ 185J251012 KNOB TUNING/PRESET 285W154010 KNOB POWER 285W270010 KNOB BALANCE 274W154030 KNOB VOLUME 309W154010 PANEL FRONT 309W248010 INDICATOR MUTE... -
Page 17: Electrical Parts List
9. ELECTRICAL PARTS LIST NOTE ON SAFETY FOR FUSIBLE RESIST OR : ASSIGNMENT OF COMMON PARTS CODES. RESISTORS The suppliers and their type numbers of fusible resistors are as 1) GD05 x x x 140, Carbon film fixed resistor, 5% 1/4W follows ;... - Page 18 VERS. VERS. POS. PART NO. POS. PART NO. PART NO. PART NO. DESCRIPTION DESCRIPTION COLOR (PCS) COLOR (PCS) (MJI) (MJI) FRONT (KUP11389) BOARD RESISTORS CAPACITORS R601 1/5W J C601 ELECT 10 F 16V R602 1/5W J C602 ELECT 10 F 16V R603 1/5W J C603...
- Page 19 POS. VERS. PART NO. POS. VERS. PART NO. PART NO. PART NO. DESCRIPTION DESCRIPTION COLOR (PCS) COLOR (PCS) (MJI) (MJI) MISCELLANEOUS C055 ELECT 100 F 16V BN53 WIRE ASS’Y 2P 350MM C056 CER. 0.047 F 50V Z BN61 WIRE ASS’Y 5P 400MM C057 CER.
- Page 20 VERS. VERS. POS. PART NO. POS. PART NO. PART NO. PART NO. DESCRIPTION DESCRIPTION COLOR (PCS) COLOR (PCS) (MJI) (MJI) MAIN (KUP11388) BOARD R028 1/4W J R029 1/5W J CAPACITORS R030 100k 1/5W J C201 CER. 18pF 50V J R031 1/5W J C202 CER.
- Page 21 VERS. VERS. POS. PART NO. POS. PART NO. PART NO. PART NO. DESCRIPTION DESCRIPTION COLOR (PCS) COLOR (PCS) (MJI) (MJI) C421 ELECT 100 F 25V Q326 2SC4467 HT344673A0 C424 ELECT 100 F 16V Q327 2SA1694 HT116942B0 C425 ELECT 100 F 16V Q328 2SA1694 HT116942B0...
- Page 22 VERS. VERS. POS. PART NO. POS. PART NO. PART NO. PART NO. DESCRIPTION DESCRIPTION COLOR (PCS) COLOR (PCS) (MJI) (MJI) R311 1/5W J R411 0.47 1W J FUSABLE *NH000080R R312 1/5W J R412 0.47 1W J - FUSABLE *NH000080R R313 1.5k 1/5W J R413...