The following check should be performed for the continued protection of the customer and service technician.
LEAKAGE CURRENT CHECK
Before returning the unit to the customer, make sure you make either (1) a leakage current check or (2) a line to chassis
resistance check. If the leakage current exceeds 0.5 milliamps, or if the resistance from chassis to either side of the power
cord is less than 460 kohms, the unit is defective.
PMA-500AE
CAUTION
Please heed the points listed below during servicing and inspection.
◎ Heed the cautions!
Spots requiring particular attention when servicing, such as
the cabinet, parts, chassis, etc., have cautions indicated on
labels or seals. Be sure to heed these cautions and the cautions indicated in the handling instructions.
◎ Caution concerning electric shock!
(1) An AC voltage is impressed on this set, so touching inter-
nal metal parts when the set is energized could cause
electric shock. Take care to avoid electric shock, by for example using an isolating transformer and gloves when
servicing while the set is energized, unplugging the power
cord when replacing parts, etc.
(2)There are high voltage parts inside. Handle with extra care
when the set is energized.
◎
Caution concerning disassembly and assembly!
Though great care is taken when manufacturing parts from
sheet metal, there may in some rare cases be burrs on the
edges of parts which could cause injury if fingers are moved
across them. Use gloves to protect your hands.
◎ Only use designated parts!
The set's parts have specific safety properties (fire resistance, voltage resistance, etc.). For replacement parts, be
sure to use parts which have the same properties. In particular, for the important safety parts that are marked ! on wiring
diagrams and parts lists, be sure to use the designated parts.
◎ Be sure to mount parts and arrange the
wires as they were originally!
For safety reasons, some parts use tape, tubes or other insulating materials, and some parts are mounted away from the
surface of printed circuit boards. Care is also taken with the
positions of the wires inside and clamps are used to keep
wires away from heating and high voltage parts, so be sure to
set everything back as it was originally.
◎ Inspect for safety after servicing!
Check that all screws, parts and wires removed or disconnected for servicing have been put back in their original positions, inspect that no parts around the area that has been
serviced have been negatively affected, conduct an insulation
check on the external metal connectors and between the
blades of the power plug, and otherwise check that safety is
ensured.
(Insulation check procedure)
Unplug the power cord from the power outlet, disconnect the
antenna, plugs, etc., and turn the power switch on. Using a
500V insulation resistance tester, check that the insulation resistance between the terminals of the power plug and the externally exposed metal parts (antenna terminal, headphones
terminal, microphone terminal, input terminal, etc.) is 1MΩ or
greater. If it is less, the set must be inspected and repaired.
CAUTION
Many of the electric and structural parts used in the set have
special safety properties. In most cases these properties are
difficult to distinguish by sight, and using replacement parts
with higher ratings (rated power and withstand voltage) does
not necessarily guarantee that safety performance will be preserved. Parts with safety properties are indicated as shown
below on the wiring diagrams and parts lists is this service
manual. Be sure to replace them with parts with the designated part number.
(1) Schematic diagrams ... Indicated by the ! mark.
(2) Parts lists ... Indicated by the ! mark.
Concerning important safety parts
Using parts other than the designated parts
could result in electric shock, fires or other
dangerous situations.
RD :2B : 1/8 WF : ±1%P :
RC :2E : 1/4 W G : ±2%NL :
RS :2H : 1/2 W J : ±5%NB :
RW :3A : 1 WK : ±10%FR :
RN :3D : 2 W M : ±20%F :
RK :3F : 3 W
∗
18 2
1R 2
3H : 5 W
1800
Ö
2
1.2
Ö
1
2R
=1.8k
0
ll
l Capacitors
ll
Ex.: CE04W1H2R2MBP
Type Shape Dielectric Capacity Allowable Others
and per- strengtherror
formance
CE : Aluminum foil0J : 6.3VF : ±1%HS : High stability type
electrolytic
CA : Aluminum solid1A : 10VG : ±2%BP : Non-polar type
electrolytic
CS : Tantalum electrolytic1C : 16VJ : ±5%HR : Ripple-resistant type
CQ : Film1E : 25VK : ±10%DL : For change and discharge
CK : Ceramic1V : 35VM : ±20%HF : For assuring high
CC : Ceramic1H : 50VZ : +80%U : UL par t
CP : Oil2A : 100V–20%C : CSA part
CM : Mica2B : 125V P : +100% W : UL-CSA type
CF : Metallized2C : 160V–0%F : Lead wire forming
CH : Metallized2D : 200VC : ±0.25pF
] Capacity (electrolyte only)
2 2 2⇒2200µF
s
s
• Units: µF.
2 R 2⇒2.2µF
s
s
• Units: µF.
] Capacity (except electrolyte)
2 2 2⇒2200pF=0.0022µF
s
s
(More than 2) Indicates number of zeros after effective number.
• Units: pF.
2 2 1⇒220pF
s
s
(0 or 1)Indicates number of zeros after effective number.
• Units: pF.
• When the dielectric strength is indicated in AC, "AC" is included after the dieelectric
strength value.
2E : 250V D : ±0.5pF
2H : 500V = : Others
2J : 630V
Indicates number of zeros after effective number.
2-digit effective number.
1-digit effective number.
2-digit effective number, decimal point indicated by R.
*本表に記載されている部品は、補修用部品のため製品に使用している部品とは一部、形状、寸法などが異なる場合があります。
* The parts listed below are for maintenance only, might differ from the parts used in the unit in appearances or dimensions.
*"nsp" 印の部品は常時在庫していませんので供給に長時間を要することがあります。場合によっては、供給をお断りする場合があります。
* Part indicated with the mark “nsp” are not always in stock and possibly to take a long period of time for supplying, or in some case supplying of part may be refused.
Note: The symbols in the column "Remarks" indicate the following destinations.
Parts marked with this symbol have critical
characteristics.
Use ONLY replacement parts recommended by
the manufacturer.
WARNING:
印の部分は安全を維持するために重要
な部品です。従って交換時は必ず指定の
部品を使用してください。
67
53
57
65
2-5
20
59
64
PMA-500AE
26
27
62
66
22
58
63
62
28
19
25
59
18
29
16
58
21
61
60
24
58
57
1
23
2-1
10
3
57
4
2-4
52
17
51
2-3
51
7
8
9
53
14
15 -1
55
11
56
12
13
15 -2
54
57
2-2
57
6
5
53
20
PMA-500AE
PARTS LIST OF EXPLODED VIEW
*本表に記載されている部品は、補修用部品のため製品に使用している部品とは一部、形状、寸法などが異なる場合があります。
* The parts listed below are for maintenance only, might differ from the parts used in the unit in appearances or dimensions.
*"nsp" 印の部品は常時在庫していませんので供給に長時間を要することがあります。場合によっては、供給をお断りする場合があります。
* Part indicated with the mark “nsp” are not always in stock and possibly to take a long period of time for supplying, or in some case supplying of part may be refused.
Note: The symbols in the column "Remarks" indicate the following destinations.
E2: Europe modelEUT: Taiwan R.O.C. model
Ref. No.nspPart No.Part NameRemarksQ'ty New
1 nsp00D 943 0194 309 MAIN PWB ASS'Yfor E2COP11904B1*
1 nsp00D 943 0194 406 MAIN PWB ASS'Yfor EUTCOP11904C1*
2 nsp00D 943 0194 105 FRONT PCB ASS'Yfor E2COP11903B1*
2 nsp00D 943 0194 202 FRONT PCB ASS'Yfor EUTCOP11903C1*
29 nsp00D 943 0192 408 TOP CABINETBlack modelCKC1A176S561*
29 nsp00D 943 0192 301 TOP CABINETPremium Silver model CKC1A176S551*
★ 30
★ 31
★ 32
★ 33
★ 34
★ 35
★ 36
★ 37
★ 38
★ 39
★ 40
★ 41
★ 42
00D 943 0193 708
nsp00D 943 0186 401 HEMELON TAPECHS1A0323*
00D 943 0164 203 FERRITE, RINGCLZ9W003Z1
nsp00D 943 0191 302 CLAMPERCHR3018
-LOCKERCRE1A0378*
nsp00D 129 0256 003 CLOTH TAPE (W20)L=301
nsp00D 129 0256 016 CLOTH TAPE (W10)L=2301
nsp00D 125 0092 029 BUTYL TAPE (W=15)L=652
nsp00D 125 0096 025 NITOFLON TAPE (W15)L=652
nsp00D 125 0092 016 BUTYL TAPE (W=25)L=1701
nsp00D 125 0096 012 NITOFLON TAPE (W25)L=1701
nsp00D 125 0097 011 BUTYL TAPE (W25 T2)L=1001
nsp00D 125 0096 012 NITOFLON TAPE (W25)L=1001
FERRITE CORE(21.2X6.4X12.7)
CLZ9Z028Z1*
SCREWS
51-SCREW, CTB3+10GRCTB3+10GR6
52-SCREW, CTWS3+10GRCTWS3+10GR1
53-DOT SCREW, CTBD3+8JFZRBlack modelCTBD3+8JFZR10
53-DOT SCREW, CTBD3+8JFNPremium Silver model CTBD3+8JFN10
54-SCREW, CTB3+10GFZRBlack modelCTB3+10GFZR3
54-SCREW, CTB3+10GFNPremium Silver model CTB3+10GFN3
55-NUT (M9)5
56-WASHER5
57-SCREW, CTW3+8JRCTW3+8JR11
58-SCREW, CTB3+8JRCTB3+8JR6
59-SCREW, CTW3+6JRCTW3+6JR2
60-SCREW, CTW3+12JRCTW3+12JR2
61 nsp00D 943 0191 001 SCREW, SPECIALCHD1A012R6*
62-DOT SCREW, CTBD3+8JFZRCTBD3+8JFZR5
63-DOT SCREW, CTBD3+10GFZRCTBD3+10GFZR9
64-SCREW, CTB3+6FFZRCTB3+6FFZR1
65-SCREW, CTW3+18JRCTW3+18JR1
66-SCREW, CTB4+8FRCTB4+8FR4
67-SCREW, CTB4+6FFZRBlack modelCTB4+6FFZR4
67-SCREW, CTB4+6FFNPremium Silver model CTB4+6FFN4
22
PACKING VIEW
PMA-500AE
4-1
4-4
4-2
4-5
4-3
1
8
3
5
7
3
9
78
6
2
PARTS LIST OF PACKING & ACCESSORIES
*本表に記載されている部品は、補修用部品のため製品に使用している部品とは一部、形状、寸法などが異なる場合があります。
* The parts listed below are for maintenance only, might differ from the parts used in the unit in appearances or dimensions.
*"nsp" 印の部品は常時在庫していませんので供給に長時間を要することがあります。場合によっては、供給をお断りする場合があります。
* Part indicated with the mark “nsp” are not always in stock and possibly to take a long period of time for supplying, or in some case supplying of part may be refused.
Note: The symbols in the column "Remarks" indicate the following destinations.
800D 943 0194 804 LABEL, COLORPremium Silver model CQB1A676Y2*
9-CARTON LABELfor EUTCQB1A775Z1*
23
WIRING DIAGRAM
PMA-500AE
24
PMA-500AE
NOTE FOR SCHEMATIC DIAGRAM
WARNING:
Parts marked with this symbol ! have critical characteristics.
Use ONLY replacement parts recommended by the manufacturer.
CAUTION:
Before returning the unit to the customer, make sure you make
either (1) a leakage current check or (2) a line to chassis resistance check. If the leakage current exceeds 0.5 milliamps, or if
the resistance from chassis to either side of the power cord is
less than 460 kohms, the unit is defective.
WARNING:
DO NOT return the unit to the customer until the problem is located and corrected.
NOTICE:
ALL RESISTANCE VALUES IN OHM. k=1,000 OHM
M=1,000,000 OHM
ALL CAPACITANCE VALUES IN MICRO FARAD.
P=MICRO-MICRO FARAD
EACH VOLTAGE AND CURRENT ARE MEASURED AT
NO SIGNAL INPUT CONDITION.
CIRCUIT AND PARTS ARE SUBJECT TO CHANGE
WITHOUT PRIOR NOTICE.