2325 SM has CU05 @ 2200PF. Schematic has CU05 @ .022uf=22nf=22000pf. Schematic seems to be correct. 2325 SM & Schematic say CU14 & CU15 are .22uf, but both should be corrected to 0.1uf 250V. Question: What is the best replacement for CU05? Is WIMA film OK? If something is better, please give details. Thanks
Marantz Service Manual error thread
- Thread starter Jailtime
- Start date
2238 service manual - On the schematic, on the P700 board, it shows two diodes both labeled H718. The correct one is just above H720. The mislabeled one is actually H736. IF you also look at the Hi-Res scan (EU) version, H736 is also mislabeled as H718, and the true H718 has no label at all.
-Bob-
-Bob-
Last edited:
1090
Il diodo segnato Q734 sullo schema viene indicato come Q743 sul circuito stampato, ma sullo stesso circuito stampato c'é anche un altro Q743. Dalla logica si capisce che Q743 inserito in una delle due parti simmetriche stereo dei finali è un 1S2472, ma per lo zener Q734 non ne è indicata la sigla sullo schema. Togliendolo c'é scritto "W3 10" e si misurano circa 30V ai suoi capi per cui dovrebbe essere un diodo zener da 30V, ma non trovo le caratteristiche di questo diodo zener da nessuna parte.
Il diodo segnato Q734 sullo schema viene indicato come Q743 sul circuito stampato, ma sullo stesso circuito stampato c'é anche un altro Q743. Dalla logica si capisce che Q743 inserito in una delle due parti simmetriche stereo dei finali è un 1S2472, ma per lo zener Q734 non ne è indicata la sigla sullo schema. Togliendolo c'é scritto "W3 10" e si misurano circa 30V ai suoi capi per cui dovrebbe essere un diodo zener da 30V, ma non trovo le caratteristiche di questo diodo zener da nessuna parte.
2238 service manual - P400 parts list shows C422 as a 47uF/10V. The actual board does as well. The schematic shows it labeled as C005.
2226B service manual - P400 parts list shows C422 also as 47uF/10V, as does the board. However, it is missing from the schematic. The negative end ties to ground, the positive end ties to the positive side of the signal strength meter, similar to the 2238.
2226B service manual - P400 parts list shows C422 also as 47uF/10V, as does the board. However, it is missing from the schematic. The negative end ties to ground, the positive end ties to the positive side of the signal strength meter, similar to the 2238.
mkj
New Member
Marantz 2252B service manual errors (hifi engine version), rev. 2:
A few of these errors came from the Audiokarma service manual error thread; sorry for including without credit. I discovered many more. I decided to just put all the ones I know of into one post. I have also updated many pages; I may look into uploading those here and elsewhere as well.
P200 schematic: (correct on pp. 25-26 as well)
P100 schematic: (correct on pp. 25-26 as well)
C108 5p is mislabeled as C107; the other C107 2p is correct.
C119 is shown connected to the wrong gate of Q101; correct.
???---> Where is C173 on the layout? <---??? 2226b and 2338b parts lists do not include it. It may be gone, but the schematics still show it.
R106 4.7k is milabeled as R104; the other R104 100 is correct.
R169 47k is missing between C172 and ground.
PE01 layout: (correct on pp. 25-26 as well)
Cermaic caps CE26 and CE27 (back of board) should be shown.
PE01 parts list:
CE23 and CE24 should be 1uF/50V, +/-20% Non-Polarized electrolytic capacitors as marked on the schematic.
PK01 Dolby socket board schematic/layout: (correct on pp. 25-26 as well)
Microswitches are shown as normally closed, without their open pins. Each newly added open terminal should have a 15k resistor to pins 7 and 13 of JK09.
P400 schematic/layout: (correct on pp. 25-26 as well)
To remove ambiguity, add a connection point at the intersection showing R429 connects to both Q405 and Q406.
Add 0.01 ceramic cap (back of board) between J430 and J433/4.
Note C423/C424 (back of board) are 20p ceramic on at least one revision.
C402 shows polarity reversed on schematic.
The marking on the layout for C416 should be with the polarized cap, not the non-polar.
P700 Schematic: (correct on pp. 25-26 as well)
Add connection point at J708 to top collector pin of J735.
Add non-connected jumpers J725 and J727.
J737 should be added connected to J706.
J738-739 should be added and connected to ground and each other via jumper.
Add film cap 473M 200V (back of board); C740 is already shown.
The resistor labeled R726, 0.1 Ohm/200W should be labelled R762, 10 Ohm/2W, the counterpart to R761 for the other channel. The parts list for R762 is correct.
The electrolytic capacitor C705 47uF/16V is mislabeled on the schematic as C707.
The label for Q730 is missing.
P700 Layout:
C701, C721 and C722 on the board layout shows incorrect capacitor polarity.
C738 is marked as C783; correct.
On the layout, there are two Q718s; correct the leftmost one to Q715.
pp 21-22
JS17 should not be grouped with JS47-50; it should be connected to JY05 only.
J704 and J728 should show connections to chassis ground only.
J737 should be added connected to J706's connection to main caps bridge.
Speaker 2 should connect to the main cap bridge; speaker 1 grounds connect to speaker 2 grounds via jumpers.
pp 25-26
In addition to the P100, P200, PE01, PK01, P400, and P700 corrections...
In the annotation above the tuner section, 'Q203-Q205' should read 'Q203-Q205, Q207'.
Enries for Q206, Q301, Q302, and Q303-Q304 should be added.
Above the P700 section Q715/716 are listed as 2SD945. Correct to 2SC945.
J704 and J728 should show connections to chassis ground only.
Speaker 2 should connect to the main cap bridge; speaker 1 grounds connect to speaker 2 grounds via jumpers.
European models pp. 23-24 and 27-28 were not researched at all.
mkj
A few of these errors came from the Audiokarma service manual error thread; sorry for including without credit. I discovered many more. I decided to just put all the ones I know of into one post. I have also updated many pages; I may look into uploading those here and elsewhere as well.
P200 schematic: (correct on pp. 25-26 as well)
P100 schematic: (correct on pp. 25-26 as well)
C108 5p is mislabeled as C107; the other C107 2p is correct.
C119 is shown connected to the wrong gate of Q101; correct.
???---> Where is C173 on the layout? <---??? 2226b and 2338b parts lists do not include it. It may be gone, but the schematics still show it.
R106 4.7k is milabeled as R104; the other R104 100 is correct.
R169 47k is missing between C172 and ground.
PE01 layout: (correct on pp. 25-26 as well)
Cermaic caps CE26 and CE27 (back of board) should be shown.
PE01 parts list:
CE23 and CE24 should be 1uF/50V, +/-20% Non-Polarized electrolytic capacitors as marked on the schematic.
PK01 Dolby socket board schematic/layout: (correct on pp. 25-26 as well)
Microswitches are shown as normally closed, without their open pins. Each newly added open terminal should have a 15k resistor to pins 7 and 13 of JK09.
P400 schematic/layout: (correct on pp. 25-26 as well)
To remove ambiguity, add a connection point at the intersection showing R429 connects to both Q405 and Q406.
Add 0.01 ceramic cap (back of board) between J430 and J433/4.
Note C423/C424 (back of board) are 20p ceramic on at least one revision.
C402 shows polarity reversed on schematic.
The marking on the layout for C416 should be with the polarized cap, not the non-polar.
P700 Schematic: (correct on pp. 25-26 as well)
Add connection point at J708 to top collector pin of J735.
Add non-connected jumpers J725 and J727.
J737 should be added connected to J706.
J738-739 should be added and connected to ground and each other via jumper.
Add film cap 473M 200V (back of board); C740 is already shown.
The resistor labeled R726, 0.1 Ohm/200W should be labelled R762, 10 Ohm/2W, the counterpart to R761 for the other channel. The parts list for R762 is correct.
The electrolytic capacitor C705 47uF/16V is mislabeled on the schematic as C707.
The label for Q730 is missing.
P700 Layout:
C701, C721 and C722 on the board layout shows incorrect capacitor polarity.
C738 is marked as C783; correct.
On the layout, there are two Q718s; correct the leftmost one to Q715.
pp 21-22
JS17 should not be grouped with JS47-50; it should be connected to JY05 only.
J704 and J728 should show connections to chassis ground only.
J737 should be added connected to J706's connection to main caps bridge.
Speaker 2 should connect to the main cap bridge; speaker 1 grounds connect to speaker 2 grounds via jumpers.
pp 25-26
In addition to the P100, P200, PE01, PK01, P400, and P700 corrections...
In the annotation above the tuner section, 'Q203-Q205' should read 'Q203-Q205, Q207'.
Enries for Q206, Q301, Q302, and Q303-Q304 should be added.
Above the P700 section Q715/716 are listed as 2SD945. Correct to 2SC945.
J704 and J728 should show connections to chassis ground only.
Speaker 2 should connect to the main cap bridge; speaker 1 grounds connect to speaker 2 grounds via jumpers.
European models pp. 23-24 and 27-28 were not researched at all.
mkj
mkj
New Member
Marantz 2252B service manual errors (hifi engine version), rev. 3:
A few of these errors came from the Audiokarma service manual error thread; sorry for including without credit. I discovered many more. I decided to just put all the ones I know of into one post. I have also updated many pages; I may look into uploading those here and elsewhere as well.
P200 schematic: (correct on pp. 25-26 as well)
P100 schematic: (correct on pp. 25-26 as well)
C108 5p is mislabeled as C107; the other C107 2p is correct.
C119 is shown connected to the wrong gate of Q101; correct.
???---> Where is C173 on the layout? <---??? 2226b and 2338b parts lists do not include it. It may be gone, but the schematics still show it.
R106 4.7k is milabeled as R104; the other R104 100 is correct.
R169 47k is missing between C172 and ground.
PE01 layout: (correct on pp. 25-26 as well)
Cermaic caps CE26 and CE27 (back of board) should be shown.
PE01 parts list:
CE23 and CE24 should be 1uF/50V, +/-20% Non-Polarized electrolytic capacitors as marked on the schematic.
PK01 Dolby socket board schematic/layout: (correct on pp. 25-26 as well)
Microswitches are shown as normally closed, without their open pins. Each newly added open terminal should have a 15k resistor to pins 7 and 13 of JK09.
P400 schematic/layout: (correct on pp. 25-26 as well)
To remove ambiguity, add a connection point at the intersection showing R429 connects to both Q405 and Q406.
Add 0.01 ceramic cap (back of board) between J430 and J433/4.
Note C423/C424 (back of board) are 20p ceramic on at least one revision.
C402 shows polarity reversed on schematic.
The marking on the layout for C416 should be with the polarized cap, not the non-polar.
P700 Schematic: (correct on pp. 25-26 as well)
Add connection point at J708 to top collector pin of J735.
Add non-connected jumpers J725 and J727.
J737 should be added connected to J706.
J738-739 should be added and connected to ground and each other via jumper.
Add film cap 473M 200V (back of board); C740 is already shown.
The resistor labeled R726, 0.1 Ohm/200W should be labelled R762, 10 Ohm/2W, the counterpart to R761 for the other channel. The parts list for R762 is correct.
The electrolytic capacitor C705 47uF/16V is mislabeled on the schematic as C707.
The label for Q730 is missing.
P700 Layout:
C701, C721 and C722 on the board layout shows incorrect capacitor polarity.
C738 is marked as C783; correct.
On the layout, there are two Q718s; correct the leftmost one to Q715.
pp 21-22
JS17 should not be grouped with JS47-50; it should be connected to JY05 only.
J704 and J728 should show connections to chassis ground only.
J737 should be added connected to J706's connection to main caps bridge.
Speaker 2 should connect to the main cap bridge; speaker 1 grounds connect to speaker 2 grounds via jumpers.
pp 25-26
In addition to the P100, P200, PE01, PK01, P400, and P700 corrections...
In the annotation above the tuner section, 'Q203-Q205' should read 'Q203-Q205, Q207'.
J415 connects to JS01 only; J420 in fact connects to the Dolby socket and to J724.
Enries for Q206, Q301, Q302, and Q303-Q304 should be added.
Above the P700 section Q715/716 are listed as 2SD945. Correct to 2SC945.
J704 and J728 should show connections to chassis ground only.
Speaker 2 should connect to the main cap bridge; speaker 1 grounds connect to speaker 2 grounds via jumpers.
European models pp. 23-24 and 27-28 were not researched at all.
mkj
A few of these errors came from the Audiokarma service manual error thread; sorry for including without credit. I discovered many more. I decided to just put all the ones I know of into one post. I have also updated many pages; I may look into uploading those here and elsewhere as well.
P200 schematic: (correct on pp. 25-26 as well)
P100 schematic: (correct on pp. 25-26 as well)
C108 5p is mislabeled as C107; the other C107 2p is correct.
C119 is shown connected to the wrong gate of Q101; correct.
???---> Where is C173 on the layout? <---??? 2226b and 2338b parts lists do not include it. It may be gone, but the schematics still show it.
R106 4.7k is milabeled as R104; the other R104 100 is correct.
R169 47k is missing between C172 and ground.
PE01 layout: (correct on pp. 25-26 as well)
Cermaic caps CE26 and CE27 (back of board) should be shown.
PE01 parts list:
CE23 and CE24 should be 1uF/50V, +/-20% Non-Polarized electrolytic capacitors as marked on the schematic.
PK01 Dolby socket board schematic/layout: (correct on pp. 25-26 as well)
Microswitches are shown as normally closed, without their open pins. Each newly added open terminal should have a 15k resistor to pins 7 and 13 of JK09.
P400 schematic/layout: (correct on pp. 25-26 as well)
To remove ambiguity, add a connection point at the intersection showing R429 connects to both Q405 and Q406.
Add 0.01 ceramic cap (back of board) between J430 and J433/4.
Note C423/C424 (back of board) are 20p ceramic on at least one revision.
C402 shows polarity reversed on schematic.
The marking on the layout for C416 should be with the polarized cap, not the non-polar.
P700 Schematic: (correct on pp. 25-26 as well)
Add connection point at J708 to top collector pin of J735.
Add non-connected jumpers J725 and J727.
J737 should be added connected to J706.
J738-739 should be added and connected to ground and each other via jumper.
Add film cap 473M 200V (back of board); C740 is already shown.
The resistor labeled R726, 0.1 Ohm/200W should be labelled R762, 10 Ohm/2W, the counterpart to R761 for the other channel. The parts list for R762 is correct.
The electrolytic capacitor C705 47uF/16V is mislabeled on the schematic as C707.
The label for Q730 is missing.
P700 Layout:
C701, C721 and C722 on the board layout shows incorrect capacitor polarity.
C738 is marked as C783; correct.
On the layout, there are two Q718s; correct the leftmost one to Q715.
pp 21-22
JS17 should not be grouped with JS47-50; it should be connected to JY05 only.
J704 and J728 should show connections to chassis ground only.
J737 should be added connected to J706's connection to main caps bridge.
Speaker 2 should connect to the main cap bridge; speaker 1 grounds connect to speaker 2 grounds via jumpers.
pp 25-26
In addition to the P100, P200, PE01, PK01, P400, and P700 corrections...
In the annotation above the tuner section, 'Q203-Q205' should read 'Q203-Q205, Q207'.
J415 connects to JS01 only; J420 in fact connects to the Dolby socket and to J724.
Enries for Q206, Q301, Q302, and Q303-Q304 should be added.
Above the P700 section Q715/716 are listed as 2SD945. Correct to 2SC945.
J704 and J728 should show connections to chassis ground only.
Speaker 2 should connect to the main cap bridge; speaker 1 grounds connect to speaker 2 grounds via jumpers.
European models pp. 23-24 and 27-28 were not researched at all.
mkj