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Marantz 1030

S

speedycoolda

New Member
Hi I don't know if anyone can help I'm renovating a Marantz 1030 the P700 board was in bad shape.
I need replacements for these any help would be appreciated.

H701,702 = C945 Replacement
H703,704 = C1318 Replacement
H705,706 = C371 Replacement
H707,708 = A562 Replacement
H709,710 = C1384 Replacement
H711,712 = A684 Replacement
Thank you
 
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Hi i don't know if anyone knows but on the P700 board there's 2x 22ohm R743 R744 and 2x 680ohm at R745 R746 should these be fusible resistors please because on the right channel hand D315D where blown these resistors got really hot by the looks of it thanks david
 
Also, when you solder them into the board, you can raise them off the board a bit so you get better airflow around the resistor.
 
Also, there is likely some carbon composition resistors on the power supply, they often drift out of spec. Replace them with the same metal film resistor value.
 
Hi could I ask a question someone has said I can use the KSC2690AY and TTA004B,Q(S) in replacement for the 2SA684 and the 2SC1384 as I cant find any KSA1220AY as I have quite a few KSC2690AY and TTA004B,Q(S) for the H709 H710 and H11 and H712 sorry in advance for all the questions I'm just a bit confused I will post pictures when I'm further on with the project thanks David
 
speedycoolda said:
I can use the KSC2690AY and TTA004B,Q(S)
Click to expand...
The preferred approach is to use xxxxxx and it's complement,ie
KSC2690 and KSA1220 or
TTA004B and TTC004B

and not to mix as suggested.

Yeah, I'm in the same boat, plenty of KSC but no KSA1220's. Apparently KSA1220/KSC2690's are being made in S Korea (KTRxxx???) Need to dig it up...
 
speedycoolda said:
Hi I've got the PNP version TTA004B I've just ordered the NPN version £4.79 for ten from Farnell lol as I have seen a seller on eBay that wants £5.40 for one KSA1220 then your taking a gamble lol thanks for helping David
https://uk.farnell.com/toshiba/tta004b-q-s/trans-bipolar-pnp-160v-1-5a-to/dp/3870094
https://uk.farnell.com/toshiba/tta004b-q-s/trans-bipolar-pnp-160v-1-5a-to/dp/3870094
Click to expand...
 
dankik said:
Also, when you solder them into the board, you can raise them off the board a bit so you get better airflow around the resistor.
Click to expand...
I don't believe what I've done but I had taken a load of pictures of the wiring from the D315d to the P700 board so when fitting the MJE15032G I would know where the EBC would go but little did I know my son had my phone earlier and they have been deleted so I'm up the creek without a paddle unless someone can help me oh my what a day

​

 
Just follow the schematic below and follow the wires from the transistor to the corresponding pin on the P700 board connector.

1788324363361.png
1788324912829.png
 
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