Marantz CD-670-SE Schematic

Marantz CD67OSE modifications

Power supply

Part: Org. value: Replace by: Brand: Farnell: Remark:

C803/804 470u/35V 6800u/35V Panasonic +100n PPS
C805/806 470u/16V 2200u/25V Elna RSH +100n X7R
C813 4700u/16V 4700u/16V Elna RSH +100n PPS
C815 3300u/6,3V 4700u/16V Elna RSH +100n X7R
D801...804 S5688G 11DQ10 IR schottky
D811/812 S5688G 11DQ10 IR schottky
DN01/02 S5688G 11DQ10 IR schottky
Q801/802 78M12/79M12 LM317/LM337 * see below
Q811 7805 LM340AT-5,0 NSC 412-703
Q871 7805 LM340AT-5,0 NSC 412-703

HDAM & OPAMPS (Q605/606)

C611...614 100u/25V leave in place Elna Cerafine! +100n PPS
C651...654 # 470u/16V 470u/35V Elna RSH +100n PPS
C655...658 220u/16V (wire jumper) Elna Silmic! measure offset first!
C659/660 100p remove
R613...616 27R 1mH/14R Siemens 608-609
R651...654 # 27R 1mH/14R Siemens 608-609 # optional, see below
R655/656 10k remove
R657/658 100R wire jumper
R659/660 100R 47R

Q605/606 ** NJM2114D AD827/LM6172/LT1361.... experiment! ** see below

- insert extra 220n/PPS between pins 4 and 8 Panasonic 383-5492 SMD

OUTPUT FILTER

C601...604 120p 120p/1% Mica 867-901
C605/606 1000p 470p/1% PS Styroflex 304-0021 Bessel filter
C607/608 100p 100p/1% PS Styroflex 303-9894
CD21...24 120p 120p/1% Mica 867-901
R601...604 27k 26k7/0,1% Welwyn 340-546
R607/608 18k 18k2/0,1% Welwyn 340-388
R609/610 22k 22k1/0,1% Welwyn 340-467
R605/606/611/612 10k 10k/0,1% Welwyn 340-133
RD21...28 10k 10k/0,1% Welwyn 340-133

DAC (QD01, SM5872BS)

CD04 220u/10V 220u/35V Elna RSH +100n PPS
CD05 47n cer. 100n PPS Panasonic 383-5418
CD06 47n cer. 100n PPS Panasonic 383-5418 SMD
CD07 220u/10V 220u/35V Elna RSH +100n PPS
CD12/13 47n cer. 100n PPS Panasonic 383-5418 SMD
CD15/16 470u/10V 470u/35V Elna RSH
RD01/04 4,7R 470uH/2,5R Siemens 517-070 +2 ferrites

Decoder (Q102, SAA7372GP)

C108 100n cer. 100n MKP
C109 22n cer. 22n MKP
C114/120 47u/16V 100u/16V Elna RSH
C115...119 47n cer. 100n PPS Panasonic 383-5418 SMD
C125 1n cer. 1n MKP
R117/118 4,7R 470uH/2,5R Siemens 517-070 +2 ferrites

Drivers (Q106/107/108, TDA7073A)

C156 47u/16V 100u/16V Elna RSH
C132/157/159 47n cer. 100n X7R Siemens

- on bottom-side, directly between pin 5 and ground.

µCONTROLLER (QF01, MN187164)

CF02 47u/16V remove
CF01 47n cer. 100u/16V Elna RSH +100n X7R
RF01 4,7R 470uH/2,5R Siemens 517-070 +2 ferrites
RY11 4,7R 470uH/2,5R. Siemens 517-070 +2 ferrites

+100n X7R

SERVO PCB

C126 47u/16V 100u/16V Elna RSH +100n X7R