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Ver. 2
SERVICE MANUAL Please refer to the
MODIFICATION NOTICE.

MODEL DRA-397
DRA-297
DRA-37
AM-FM STEREO RECEIVER




For purposes of improvement, specifications and
design are subject to change without notice.



Please use this service manual with referring to the
operating instructions without fail.


Some illustrations using in this service manual are
slightly different from the actual set.




TOKYO, JAPAN
Denon Brand Company, D&M Holdings Inc.

X0282V.02 DE/CDM 0701
DRA-397/297/37



SAFETY PRECAUTIONS
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.



CAUTION Please heed the points listed below during servicing and inspection.

Heed the cautions! Inspect for safety after servicing!
Spots requiring particular attention when servicing, such as Check that all screws, parts and wires removed or discon-
the cabinet, parts, chassis, etc., have cautions indicated on nected for servicing have been put back in their original posi-
labels or seals. Be sure to heed these cautions and the cau- tions, inspect that no parts around the area that has been
tions indicated in the handling instructions. serviced have been negatively affected, conduct an insulation
check on the external metal connectors and between the
Caution concerning electric shock! blades of the power plug, and otherwise check that safety is
ensured.
(1) An AC voltage is impressed on this set, so touching inter-
nal metal parts when the set is energized could cause
(Insulation check procedure)
electric shock. Take care to avoid electric shock, by for ex-
Unplug the power cord from the power outlet, disconnect the
ample using an isolating transformer and gloves when
antenna, plugs, etc., and turn the power switch on. Using a
servicing while the set is energized, unplugging the power
500V insulation resistance tester, check that the insulation re-
cord when replacing parts, etc.
sistance between the terminals of the power plug and the ex-
(2)There are high voltage parts inside. Handle with extra care ternally exposed metal parts (antenna terminal, headphones
when the set is energized. terminal, microphone terminal, input terminal, etc.) is 1M or
greater. If it is less, the set must be inspected and repaired.
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 CAUTION Concerning important safety parts
across them. Use gloves to protect your hands.
Many of the electric and structural parts used in the set have
Only use designated parts! special safety properties. In most cases these properties are
difficult to distinguish by sight, and using replacement parts
The set's parts have specific safety properties (fire resis- with higher ratings (rated power and withstand voltage) does
tance, voltage resistance, etc.). For replacement parts, be not necessarily guarantee that safety performance will be pre-
sure to use parts which have the same properties. In particu- served. Parts with safety properties are indicated as shown
lar, for the important safety parts that are marked ! on wiring below on the wiring diagrams and parts lists is this service
diagrams and parts lists, be sure to use the designated parts. manual. Be sure to replace them with parts with the designat-
ed part number.
Be sure to mount parts and arrange the
wires as they were originally! (1) Schematic diagrams ... Indicated by the ! mark.
For safety reasons, some parts use tape, tubes or other insu- (2) Parts lists ... Indicated by the ! mark.
lating materials, and some parts are mounted away from the
Using parts other than the designated parts
surface of printed circuit boards. Care is also taken with the
could result in electric shock, fires or other
positions of the wires inside and clamps are used to keep
dangerous situations.
wires away from heating and high voltage parts, so be sure to
set everything back as it was originally.




2
DRA-397/297/37


ADJUSTMENT
Idling Current
Required measurement equipment: DC Voltmeter
1. Preparation
(1) Avoid direct blow from an air conditioner or an electric
fan, and adjust the unit at normal room temperature 15 °C
~ 30 °C (59 °F ~ 86 °F).
(2) Presetting
· POWER (Power source switch) OFF
· SPEAKER (Speaker terminal) No load
(Do not connect speaker, dummy resistor, etc.)
2. Adjustment
(1) Remove top cover and set VR501FL, VR501FR on MAIN
Unit at fully counterclockwise ( ) position.
(2) Connect DC Voltmeter to test points (FRONT-Lch:
TP501, FRONT-Rch: TP502).
(3) Connect power cord to AC Line, and turn power switch
"ON".
(4) Presetting.
MASTER VOLUME : "---" counterclockwise ( min.)
MODE : TONE DEFEAT
FUNCTION : CD
(5) Within 2 minutes after the power on, turn VR501FL clock-
wise ( ) to adjust the TEST POINT voltage to 1.5 mV
± 0.5 mV DC.
(6) After 10 minutes from the preset above, turn VR501FL to
set the voltage to 2.0 mV ± 0.5 mV DC.
(7) Adjust the Variable Resistors of other channels in the
same way.




VR501FL
F Lch
TP501




VR501FR
F Rch
TP502




DC Voltmeter




3
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BLOCK DIAGRAM
DRA-397 model




4
DRA-397/297/37

DRA-297/37 model




5
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LEVEL DIAGRAM




6
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SEMICONDUCTORS
Only major semiconductors are shown, general semiconductors etc. are omitted to list.


1. IC's
M30624FGPFG (IC401) FRONT P.W.B.




7
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M30624FGPFG Terminal Function
I/O
PIN No. Port Function Port Name Function
P-ON Standby
1 P96 SIRIUS_TX O O/L SIRIUS data transmission
2 P95 SIRIUS MUTE O O/L SIRIUS MUTE control
3 P94 (HD CE) O O/L HD Radio enable output
4 P93 MULT3 SW O O/L ZONE3 output, HPFcontrol
5 P92 HD Radio TX/(SDA) O O/L HD Radio data transmission
6 P91 HD Radio RX/(SCL) I I HD Radio Data reception
7 P90 (HD CLK) O O/L HD Radio clock output
8 BYTE I - Ext. data bus bit width switching
9 CNVSS I - Processor mode switching
10 P87, XCIN (HD RESET) O O/L HD Radio reset output
11 P86, XCOUT FLT_RESET O O/L FLT reset output
12 /RESET I - Hard reset
13 XOUT O - Oscillator connection
14 VSS I - GND
15 XIN I - Oscillator connection
16 VCC1 I - 5V
17 P85 NMI I - NMI interruption input
18 P84, /INT2 RS232C_TX I I RS232C signal detection
19 P83, /INT1 REMOCON I I Remote control input
20 P82, /INT0 PROTECTION I I Unusual operation detection
21 P81 FLT_CLK O O/L FLT clock output
22 P80 FLT_DATA O O/L FLT data output
23 P77 FLT_CE1 O O/L FLT chip select output
24 P76 SPK_RLY_A O O/L Speaker A Relay control
25 P75 CPU_5V_SW O O/L CPU 5V control
26 P74 SPK_RLY_B O O/L Speaker B Relay control
27 P73 (NC) O/L
28 P72, CLK2 iPod_DET I I iPod connection detection
29 P71, RXD2/SCL2 iPod_RX I I iPod data reception
30 P70, TXD2/SDA2 iPod_TX O O/L iPod data transmission
31 P67, TXD1/SDA1 RS232C_TX O O/L RS232C data reception
32 P66, RXD1/SCL1 RS232C_RX I I RS232C data reception
33 P65, CLK1 PLL_DI I I PLL data input
34 P64 PLL_DO/XM-DAC_DO O O/L PLL/XM-DAC data output
35 P63, TxD0/SDA0 XM_TX O O/L XM data transmission
36 P62, RXD0/SCL0 XM_RX I I XM data reception
37 P61, CLK0 PLL_CLK/XM-DAC_CLK O O/L PLL/XM-DAC clock output
38 P60 PLL_CE O O/L PLL enable output
39 P57 /TUNED I I TUNED detection
40 P56 /STEREO I I STEREO broadcast detection
41 P55 RS232C_UPDATE_EPM
42 P54 VOL_UP I I Volume encoder input
43 P53 VOL_DOWN I I Volume encoder input
44 P52 SELECT_DOWN I I Select encoder input
45 P51 SELECT_UP I I Select encoder input
46 P50 RS232C_UPDATE_CE O O/L
47 P47 DC TRIGGER_2ON O O/L Trigger Out2 ON/OFF control
48 P46 FUNCTION_UP I I Function encoder input
49 P45 TUNER MUTE O O/L TUNER MUTE control
50 P44 E2PROM_SCL O O/L E2P Clock output
51 P43 E2PROM_SDA I/O O/L E2PROM data transmission and reception
52 P42 ZONE3_MUTE O O/L ZONE3 MUTE control
53 P41 ZONE2_MUTE O O/L ZONE2 MUTE control
54 P40 STBY LED_RED O O/L Standby LED(R) control


8
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I/O
PIN No. Port Function Port Name Standby Function
P-ON
55 P37 HD Radio MUTE O O/L HD Radio MUTE control
56 P36 DC TRIGGER 1 O O/L Trigger Out1 ON/OFF control
57 P35 H/P RELAY O O/L H/P Relay control
58 P34 SW_MUTE O O/L SW MUTE control
59 P33 VIDEO OFF O O/L VIDEO Reg control
60 P32 HD Radio DET I I HD Radio Installing detection
61 P31 HD Radio P/E O O/L HD Radio power supply control
62 VCC2 I - 5V
63 P30 (NC)
64 VSS I - GND
65 P27 XM_DBPOWER O O/L XM Reg control
66 P26 XM_DIC_RESET O O/L XM DIC reset output
67 P25 XM_DAC_PDN O O/L XM DAC reset reset output
68 P24 XM_COMMAND O O/L XM DIC CBM output
69 P23 XM_REQ I I XM DIC Interrupt request
70 P22 H/P DET I I H/P connection detection
71 P21 POWER RELAY O O/L POWER RELAY control
72 P20 FUNCTION_DOWN I I Function encoder input
73 P17, /INT5 POWER DOWN I I CPU 5.6V detection
74 P16, /INT4 LOUDNESS ON O O/L LOUDNESS ON/OFF control
75 P15, /INT3 POWER I I POWER Key input detection
76 P14 MULT2 SW O O/L ZONE3 output, HPF control
77 P13 STBY_LED_GREEN O O/L Standby LED(G) control
78 P12 NJW1197W_LATCH O O/L NJW1197 latch output
79 P11 NJW1197W_CLK O O/L NJW1197 Clock output
80 P10 NJW1197W_DATA O O/L NJW1197 data output
81 P07 MAIN_MUTE O O/L MAIN MUTE control
82 P06 VIDEO_A O O/L VIDEO output control
83 P05 VIDEO_B O O/L VIDEO output control
84 P04 VIDEO_C O O/L VIDEO output control
85 P03 VIDEO_D O O/L VIDEO output control
86 P02 VIDEO_E O O/L VIDEO output control
87 P01 ZONE2_VIDEO_MUTE O O/L ZONE2 VIDEO MUTE control
88 P00 ZONE3_VIDEO_MUTE O O/L ZONE3 VIDEO MUTE control
89 P107 (NC)
90 P106, AN6 KEY_IN1 I I Key input
91 P105, AN5 KEY_IN2 I I Key input
92 P104, AN4 KEY_IN3 I I Key input
93 P103 (NC)
94 P102 SIRIUS P/E O O/L SIRIUS enable output
95 P101 XM MUTE O O/L XM MUTE control
96 AVSS I - GND
97 P100 XM_DACNS O O/L XM DAC chip select input
98 VREF I - standard voltage input
99 AVCC I - 5V
100 P97, RXD4/SCL4/STXD4 SIRIUS_RX I I SIRIUS data reception




9
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NJW1197 (IC101) INPUT P.W.B.

PIN FUNCTION 80 51


81 50




100 31


1 30



BLOCK DIAGRAM




10
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NJW1197 Terminal Function


No. SYMBOL FUNCTION No. SYMBOL FUNCTION
1 ROUT Rch output 51 DCR_IN Multi-channel selector Rch input
2 COUT Cch output 52 DCR_OUT Input selector Rch output
3 LSOUT LSch output 53 GND Ground
4 RSOUT RSch output 54 DCL_IN Multi-channel selector Lch input
5 LBOUT LBch output 55 DCL_OUT Input selector Lch output
6 RBOUT RBch output 56 GND Ground
7 SWOUT SWch output 57 REC_B1R Input selector Rch REC output B1
8 GND Ground 58 REC_B1L Input selector Lch REC output B1
9 FIL_BL2 Lch Bass filter terminal 2 59 REC_A4R Input selector Rch REC output A4
10 FIL_BL1 Lch Bass filter terminal 1 60 REC_A4L Input selector Lch REC output A4
11 FIL_TL Lch Treble filter terminal 61 REC_A3R Input selector Rch REC output A3
12 TCAP Switching noise rejection capacitor 62 REC_A3L Input selector Lch REC output A3
13 FIL_BR2 Rch Bass filter terminal 2 63 REC_A2R Input selector Rch REC output A2
14 FIL_BR1 Rch Bass filter terminal 1 64 REC_A2L Input selector Lch REC output A2
15 FIL_TR Rch Treble filter terminal 65 REC_A1R Input selector Rch REC output A1
16 V+ + Power supply voltage input 66 REC_A1L Input selector Lch REC output A1
17 ADR Chip address select input 67 VDDOUT Internal Digital +Power Supply Output
18 V- - Power supply voltage input 68 DATA Control data signal input
19 L1IN Input selector Lch input 1 69 CLOCK Clock signal input
20 DCCAP_SW Switching noise rejection capacitor 70 LATCH Latch signal input
21 R1IN Input selector Rch input 1 71 MUTE External Mute control
22 DCCAP_RB Switching noise rejection capacitor 72 FL+ Input selector gain control Lch no-inverted output
23 L2IN Input selector Lch input 2 73 FL- Input selector gain control Lch inverted output
24 DCCAP_LB Switching noise rejection capacitor 74 FR+ Input selector gain control Rch no-inverted output
25 R2IN Input selector Rch input 2 75 FR- Input selector gain control Rch inverted output
26 DCCAP_RS Switching noise rejection capacitor 76 GND Ground
27 L3IN Input selector Lch input 3 77 LSCIN Multi-channel LSch input C
28 DCCAP_LS Switching noise rejection capacitor 78 RSCIN Multi-channel RSch input C
29 R3IN Input selector Rch input 3 79 LBCIN Multi-channel LBch input C
30 DCCAP_C Switching noise rejection capacitor 80 RBCIN Multi-channel RBch input C
31 L4IN Input selector Lch input 4 81 GND Ground
32 DCCAP_R Switching noise rejection capacitor 82 LAIN Multi-channel Lch input A
33 R4IN Input selector Rch input 4 83 RAIN Multi-channel Rch input A
34 DCCAP_L Switching noise rejection capacitor 84 CAIN Multi-channel Cch input A
35 L5IN Input selector Lch input 5 85 LSAIN Multi-channel LSch input A
36 GND Ground 86 RSAIN Multi-channel RSch input A
37 R5IN Input selector Rch input 5 87 LBAIN Multi-channel LBch input A
38 GND Ground 88 RBAIN Multi-channel RBch input A
39 L6IN Input selector Lch input 6 89 SWAIN Multi-channel SWch input A
40 L9IN Input selector Lch input 9 90 GND Ground
41 R6IN Input selector Rch input 6 91 LBIN Multi-channel Lch input B
42 R9IN Input selector Rch input 9 92 RBIN Multi-channel Rch input B
43 L7IN Input selector Lch input 7 93 CBIN Multi-channel Cch input B
44 L10IN Input selector Lch input 10 94 LSBIN Multi-channel LSch input B
45 R7IN Input selector Rch input 7 95 RSBIN Multi-channel RSch input B
46 R10IN Input selector Rch input 10 96 LBBIN Multi-channel LBch input B
47 L8IN Input selector Lch input 8 97 RBBIN Multi-channel RBch input B
48 L11IN Input selector Lch input 11 98 SWBIN Multi-channel SWch input B
49 R8IN Input selector Rch input 8 99 GND Ground
50 R11IN Input selector Rch input 11 100 LOUT Lch output




11
DRA-397/297/37

F2602-1 XMDTIC (IC203) XM-READY P.W.B.




Functionnal Description




12
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F2602-1 XMDTIC Pin Descriptions




13
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BA7626F (IC601) MAIN P.W.B.

Block diagram

Monitor OUT 1 16 IN1


GND 2 6dB 15 CTL A

IN5 3 logic
14 VCC


GND 4 13 VCC

IN4 5 12 IN2
6dB

CTL E 6 logic 11 CTL B

IN3 7 10 VOUT2

CTL D 8 9 CTL C




Truth table

A B E Monitor OUT C D E VOUT1 C D E VOUT2
L L IN1 L L L L IN1
H L IN2 H L IN2 H L
L H IN3 L H IN3 L H IN3
H H L IN4 H H L IN4 H H L IN4
H H H IN5 H H H IN5 H H H IN5
Note 1: indicates "don't care" (H or L).


14
DRA-397/297/37

AK4385 (IC 207) XM-READY P.W.B.


MCLK 1 16 DZFL

BICK 2 15 DZFR

SDTI 3 14 VDD

LRCK 4 Top 13 VSS
View
PDN 5 12 AOUTL+

CSN 6 11 AOUTL-

CCLK 7 10 AOUTR+

CDTI 8 9 AOUTR-




Pin function

No. Pin Name I/O Function
1 MCLK I Master Clock Input Pin
An external TTL clock should be input on this pin.
2 BICK I Audio Serial Data Clock Pin
3 SDTI I Audio Serial Data Input Pin
4 LRCK I L/R Clock Pin
5 PDN I Power-Down Mode Pin
When at "L", the AK4385 is in the power-down mode and is held in reset.
The AK4385 should always be reset upon power-up.
6 CSN I Chip Select Pin
7 CCLK I Control Data Input Pin
8 CDTI I Control Data Input Pin
9 AOUTR- O Rch Negative Analog Output Pin
10 AOUTR+ O Rch Positive Analog Output Pin
11 AOUTL- O Lch Negative Analog Output Pin
12 AOUTL+ O Lch Positive Analog Output Pin
13 VSS - Ground Pin
14 VDD - Power Supply Pin
15 DZFR O Rch Data Zero Input Detect Pin
16 DZFL O Lch Data Zero Input Detect Pin
Note: All input pins should not be left floating.




SN74LV08A (IC 204) XM-READY P.W.B.
SN74HCT08 (IC 205, 206, 211) XM-READY


1A 1 14 VCC
1B 2 13 4B
1Y 3 12 4A
2A 4 11 4Y
2B 5 10 3B
2Y 6 9 3A
GND 7 8 3Y




15
DRA-397/297/37

24LC16B (IC 404) FRONT P.W.B

BLOCK DIAGRAM
WP

HV GENERATOR


A0 1 8 VCC I/O MEMORY EEPROM
CONTROL CONTROL ARRAY
2 7 LOGIC LOGIC XDEC

24LC16B
A1 WP
PAGE LATCHES

A2 3 6 SCL SDA SCL
YDEC
VSS 4 5 SDA
VCC SENSE AMP
VSS R/W CONTROL




CXA1511M (IC 201) XM-READY P.W.B.

8 5
Block Diagram and Pin Configuration


Head Limiter BPF Delector & Hysteresis
Amp Amp BEF Comparator Integralor Comparator
IN 1
1 4

ABLC

Photo
Diode
2 3 4 5 6 7 8
C1 C2 GND fo N.C. OUT VCC
470, 680

0.01µ 0.01µ

200k VCC = 5V
(fo = 40kHz)




NJM2068 (IC 104, 108-113, 120) INPUT P.W.B.
(IC 209) XM-READY




16
DRA-397/297/37

2. FL DISPLAY
16-ST-87GINK (FLT301) for DRA-397 model




17
DRA-397/297/37




18
DRA-397/297/37

HNA-16SM13T (FL301) for DRA-297, 37 model

59 1

G1
TUNED STEREO REC PHONO CD TUNER AUX DVD / VDP TV / DBS
RDS AUTO ZONE2 VCR -1 -2 -3 V.AUX CDR / TAPE -1 -2 S9 S1
PRO LOGICII S14 S10 S6 S2
DIGITAL S38 S15 S7
CH DIGITAL ANALOG

S13 S11 S5 S3

S12 S4



G2~G16
S1 S2 S3 S4 S5

S6 S7 S8 S9 S10

G7 G1 S11 S12 S13 S14 S15
G16 G15 G13 G12 G10 G9 G6 G5 G4 G3 G2
TUNED STEREO REC PHONO CD TUNER AUX DVD / VDP TV / DBS S16 S17 S18 S19 S20
RDS AUTO ZONE2 VCR -1 -2 -3 V.AUX CDR / TAPE -1 -2
S21 S22 S23 S24 S25
PRO LOGICII
DIGITAL S26 S27 S28 S29 S30
CH DIGITAL ANALOG
G14 G11 G8 S31 S32 S33 S34 S35




Pin Assignment
PIN NO. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
CONNECTION F1 F1 NP S1 S2 S3 S4
S5 S6 S7 S8 S9 S10 S11 S12 S13 S14 S15 S16 S17
PIN NO. 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40
CONNECTION S18 S19 S20 S21 S22 S23 S24 S25 S26 S27 S28 S29 S30 S31 S32 S33 S34 S35 S36 S37
PIN NO. 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59
CONNECTION S38 G16 G15 G14 G13 G12 G11 G10 G9 G8 G7 G6 G5 G4 G3 G2 G1 F2 F2

F1, F2 : Filament
G1~G16: Grid
S1~S38 : Anode


Anode & Grid Assignment
G1 G2~G16 G1 G2~G16 G1 G2~G16 G1 G2~G16
S1 S1 S1 S10 S10 S10 S19 S19 S28 S28
S2 S2 S2 S11 S11 S11 S20 S20 S29 S29
S3 S3 S3 S12 S12 S12 S21 S21 S30 S30
S4 S4 S4 S13 S13 S13 S22 S22 S31 S31
S5 S5 S5 S14 S14 S14 S23 S23 S32 S32
S6 S6 S6 S15 S15 S15 S24 S24 S33 S33
S7 S7 S7 S16 S16 S25 S25 S34 S34
S8 S8 S17 DIGITAL S17 S26 S26 S35 S35
S9 S9 S9 S18 PRO LOGICIIS18 S27 S27


G1 G2 G3 G4 G5 G6 G7 G8 G9 G10 G11 G12 G13 G14 G15 G16
S36 / TV VDP /(DVD) DVD AUX TUNER CD PHONO REC STEREO TUNED
S37 -2 -1 TAPE /(CDR) CDR V.AUX -2 -1 VCR ZONE2 AUTO RDS
S38 S38 DBS -3 CH




19
DRA-397/297/37


PRINTED WIRING BOARDS
MAIN P.W.B. UNIT (for ALL model)




COMPONENT SIDE


20
DRA-397/297/37




FOIL SIDE


21
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FRONT P.W.B.UNIT (for DRA-397 model)




DENON




DENON




DENON
DENON




COMPONENT SIDE


22
DRA-397/297/37




FOIL SIDE


23
DRA-397/297/37



FRONT P.W.B.UNIT (for DRA-297 model)




DENON
DENON




DENON

DENON




COMPONENT SIDE


24
DRA-397/297/37




FOIL SIDE


25
DRA-397/297/37



FRONT P.W.B.UNIT (for DRA-37 model)




DENON
DENON




DENON


DENON
COMPONENT SIDE


26
DRA-397/297/37




FOIL SIDE


27
DRA-397/297/37

INPUT P.W.B. UNIT (for ALL model)




COMPONENT SIDE




FOIL SIDE



28
DRA-397/297/37

CNT P.W.B. UNIT (for ALL model)




COMPONENT SIDE




FOIL SIDE




29
DRA-397/297/37

XM-READY P.W.B. UNIT (for ALL model) FUNCTUION SW P.W.B. UNIT (for DRA-37 model)




DENON COMPONENT SIDE




COMPONENT SIDE




FOIL SIDE




FOIL SIDE



30
DRA-397/297/37


NOTE FOR PARTS LIST
· 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.
· When ordering of part, clearly indicate "1" and "I" (i) to avoid mis-
supplying.
· Ordering part without stating its part number can not be supplied.
· Part indicated with the mark " " is not illustrated in the exploded view.
· Not including General-purpose Carbon Film Resistor in the P.W.Board
parts list. (Refer to the Schematic Diagram for those parts.)
· Not including General-purpose Carbon Chip Resistor in the P.W.Board
parts list. (Refer to the Schematic Diagram for those parts.)
WARNING:
Parts marked with this symbol ! have critical characteristics.
Use ONLY replacement parts recommended by the manufacturer.


l Resistors
Ex.: RN 14K 2E 182 G FR
RN 14K 2E 182 G FR
Type Shape Power Resist- Allowable Others
and per- ance error
formance

RD : Carbon 2B : 1/8W F : ±1% P : Pulse-resistant type RD : 2B : 1/8 W F : ±1% P :
RC : Composition 2E : 1/4W G : ±2% NL : Low noise type RC : 2E : 1/4 W G : ±2% NL :
RS : Metal oxide film 2H : 1/2W J : ±5% NB : Non-burning type RS : 2H : 1/2 W J : ±5% NB :
RW : Winding 3A : 1W K : ±10% FR : Fuse-resistor RW : 3A : 1 W K : ±10% FR :
RN : Metal film 3D : 2W M : ±20% F : Lead wire forming
RK : Metal mixture 3F : 3W RN : 3D : 2 W M: ±20% F :
3H : 5W RK : 3F : 3 W
3H : 5 W
] Resistance
1 8 2
s

s
1800 ohm = 1.8 kohm 18 2 1800 =1.8k
Indicates number of zeros after effective number.
2-digit effective number. 0
· Units: ohm 2
1R 2 1.2
1 R 2 1.2 ohm
s s
1-digit effective number. 1
2-digit effective number, decimal point indicated by R.
2 R
· Units: ohm


l Capacitors
Ex.: CE 04W 1H 2R2 M BP
CE 04W 1H 2R2 M BP
Type Shape Dielectric Capacity Allowable Others
and per- strength error
formance

CE : 0J : 6.3 V F ±1%
: HS :
CE : Aluminum foil 0J : 6.3V F : ±1% HS : High stability type CA : 1A : 10 V G ±2%
: BP :
electrolytic CS : 1C : 16 V J ±5%
: HR :
CA : Aluminum solid 1A : 10V G : ±2% BP : Non-polar type
electrolytic CQ : 1E : 25 V K ±10%
: DL :
CS : Tantalum electrolytic 1C : 16V J : ±5% HR : Ripple-resistant type CK : 1V : 35 V M ±20%
: HF :
CQ : Film 1E : 25V K : ±10% DL : For change and discharge CC : 1H : 50 V Z +80%
: U : UL
CK : Ceramic 1V : 35V M : ±20% HF : For assuring high
requency CP : 2A : 100 V -20% C : CSA
CC : Ceramic 1H : 50V Z : +80% U : UL part CM : 2B : 125 V P : +100% W : UL-CSA
CP : Oil 2A : 100V ­20% C : CSA part CF : 2C : 160 V - 0% F :
CM : Mica 2B : 125V P : +100% W : UL-CSA type
CF : Metallized 2C : 160V ­0% F : Lead wire forming CH : 2D : 200 V C : ±0.25pF
CH : Metallized 2D : 200V C : ±0.25pF 2E : 250 V D : ±0.5pF
2E : 250V D : ±0.5pF 2H : 500 V = :
2H : 500V = : Others
2J : 630V 2J : 630 V


] Capacity (electrolyte only)
2 2 2 2200µF
s s
Indicates number of zeros after effective number.
2-digit effective number. 22 2 2200µF 2R 2 2.2µF
· Units: µF.
0 1
2 R 2 2.2µF 2 2 R
s s
1-digit effective number. µF µF
2-digit effective number, decimal point indicated by R.
· Units: µF.

] Capacity (except electrolyte) 22 2 2200pF=0.0022µF 22 1 220pF
2 2 2 2200pF=0.0022µF 0 0
s s
(More than 2) Indicates number of zeros after effective number.
(0 2 ) (0 0 1 )
2-digit effective number.
· Units: pF. 2 2
pF pF
2 2 1 220pF
s s
(0 or 1) Indicates number of zeros after effective number.
2-digit effective number. AC
· Units: pF.

· When the dielectric strength is indicated in AC, "AC" is included after the dieelectric
strength value.



31
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PARTS LIST OF P.W.B. UNIT
The parts listed below are for maintenance only, might differ from the parts used in the unit in appearances or dimensions.



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.


MAIN P.W.B. UNIT ASSY
Ref. No. nsp Part No. Part Name Remarks Q'ty New
SEMICONDUCTORS GROUP
IC503 00D 963 0057 806 IC KIA78R05PI J126780500370S
IC504 00D 963 0313 809 IC KIA78R06PI J126780600210S
IC506 00D 263 1092 003 IC BA05T J126050000020S
IC601 00D 963 0083 304 IC BA7626F J171762600010S


Q501FL 00D 960 0196 603 TR KTC2874B J502287400010S
Q501FR 00D 960 0196 603 TR KTC2874B J502287400010S
Q502FL 00D 960 0196 205 TR KSA992F J5000992F0050S
Q502FR 00D 960 0196 205 TR KSA992F J5000992F0050S
Q503FL 00D 960 0196 205 TR KSA992F J5000992F0050S
Q503FR 00D 960 0196 205 TR KSA992F J5000992F0050S
Q504FL 00D 960 0196 506 TR KSC1845F J5021845F0000S
Q504FR 00D 960 0196 506 TR KSC1845F J5021845F0000S
Q508FL 00D 960 0196 506 TR KSC1845F J5021845F0000S
Q508FR 00D 960 0196 506 TR KSC1845F J5021845F0000S
Q509 00D 960 0196 302 TR KTA1268BL J5001268B0050S
Q510,511 00D 960 0005 202 TR KTC3198Y J5023198Y0000S
Q512 00D 960 0196 302 TR KTA1268BL J5001268B0050S
Q513-515 00D 960 0005 202 TR KTC3198Y J5023198Y0000S
Q516,517 00D 960 0196 302 TR KTA1268BL J5001268B0050S
Q518 00D 960 0196 700 TR KTC3200BL J5023200B0050S
Q519,520 00D 960 0196 302 TR KTA1268BL J5001268B0050S
Q521 00D 960 0189 005 TR KSA916Y for 297, 37 J5000916Y0050S
Q522 00D 960 0196 409 TR 2SC1740SR J5021740S0010S
Q523 00D 963 0121 208 TR KRC107M J6020107M0010S
Q524 00D 960 0196 409 TR 2SC1740SR J5021740S0010S
Q525-527 00D 963 0219 602 TR KRC106M J6020106M0010S
Q528,529 00D 960 0097 304 TR KRC102M J6020102M0010S
Q530 00D 963 0226 705 TR KTC1027Y for 397 J5021027Y0020S
Q601 00D 960 0068 207 TR KTA1504Y(ASY) J5201504Y0210S
Q602 00D 960 0068 207 TR KTA1504Y(ASY) for 397 J5201504Y0210S
Q603 00D 960 0068 207 TR KTA1504Y(ASY) J5201504Y0210S
Q604 00D 960 0068 207 TR KTA1504Y(ASY) for 397 J5201504Y0210S
Q605,606 00D 963 0245 003 TR KRC106S (NF) J522010600210S
Q620,621 00D 963 0159 102 TR KRC111S (NM) J522011100210S


D501FL 00D 963 0219 709 D,SWITCHING 1N4148W K005041480020S
D501FR 00D 963 0219 709 D,SWITCHING 1N4148W K005041480020S
D502FL 00D 963 0219 709 D,SWITCHING 1N4148W K005041480020S
D502FR 00D 963 0219 709 D,SWITCHING 1N4148W K005041480020S
D503FL 00D 963 0020 309 D,SWITCHING 1SS133T K000013300520S
D503FR 00D 963 0020 309 D,SWITCHING 1SS133T K000013300520S
D504-511 00D 963 0020 309 D,SWITCHING 1SS133T K000013300520S
D512 00D 960 0197 107 D,RECTIFIER KBPC604 6A K047604000020S
D513 00D 963 0058 407 D,SWITCHING IN4007 for 297, 37 K000400700520S
D514 00D 963 0058 407 D,SWITCHING IN4007 for 397 K000400700520S
D515-518 00D 963 0058 407 D,SWITCHING IN4007 K000400700520S
D519-521 00D 963 0020 309 D,SWITCHING 1SS133T K000013300520S


32
DRA-397/297/37


Ref. No. nsp Part No. Part Name Remarks Q'ty New
D522-525 00D 963 0058 407 D,SWITCHING IN4007 K000400700520S
D526-532 00D 963 0020 309 D,SWITCHING 1SS133T K000013300520S
D533 00D 960 0197 107 D,RECTIFIER KBPC604 6A K047604000020S
D534-538 00D 963 0058 407 D,SWITCHING IN4007 K000400700520S
D539 00D 963 0020 309 D,SWITCHING 1SS133T K000013300520S
D601-604 00D 963 0219 709 D,SWITCHING 1N4148W K005041480020S
D605-606 00D 963 0219 709 D,SWITCHING 1N4148W for 397 K005041480020S


ZD310,311 00D 960 0095 607 D,ZENER MTZJ5.6B for 397, 297 K06005R644520S
ZD501FL 00D 963 0279 804 D,ZENER UDZS4.3B K06604R34P410S
ZD501FR 00D 963 0279 804 D,ZENER UDZS4.3B K06604R34P410S
ZD502FL 00D 963 0295 503 D,ZENER UDZS3.6B K06603R64P400S
ZD502FR 00D 963 0295 503 D,ZENER UDZS3.6B K06603R64P400S
ZD503 00D 963 0314 206 D,ZENER MTZJ7.5B K06007R544520S
ZD504,505 00D 963 0314 206 D,ZENER MTZJ20B for 397 K06020R044520S
ZD506 00D 963 0314 206 D,ZENER MTZJ20B K06020R044520S
ZD507 00D 960 0095 704 D,ZENER MTZJ6.2B K06006R244520S
ZD508 00D 960 0095 500 D,ZENER MTZJ5.1B K06005R144520S
ZD509,510 00D 963 0148 605 LED,ROUND SML1216W for 297, 37 K06018R044520S


LED303 00D 963 0148 605 LEDSML1216W(RED/GREEN) for 397, 297 K500052600030S



RESISTORS GROUP
R508FL 00D 960 9004 301 R,METAL FILM 47-J,1/4W C060047063050S
R508FR 00D 960 9004 301 R,METAL FILM 47-J,1/4W C060047063050S
R509FL 00D 960 9005 902 R,METAL FILM 1.2K-J,1/4W C060012263050S
R509FR 00D 960 9005 902 R,METAL FILM 1.2K-J,1/4W C060012263050S
R516FL 00D 963 9006 285 R,FIXED1WJ-5.6K N113135656220S
R516FR 00D 963 9006 285 R,FIXED1WJ-5.6K N113135656220S
R517FL 00D 963 9006 285 R,FIXED1WJ-5.6K N113135656220S
R517FR 00D 963 9006 285 R,FIXED1WJ-5.6K N113135656220S
R518FL 00D 963 0215 907 R,METAL FILM 4.7-J,1W C0604R7065050S
R518FR 00D 963 0215 907 R,METAL FILM 4.7-J,1W C0604R7065050S
R519FL 00D 963 0215 907 R,METAL FILM 4.7-J,1W C0604R7065050S
R519FR 00D 963 0215 907 R,METAL FILM 4.7-J,1W C0604R7065050S
R520FL 00D 963 9006 269 R,FIXED1WJ-0.22 N113135622820S
R520FR 00D 963 9006 269 R,FIXED1WJ-0.22 N113135622820S
R521FL 00D 963 9006 269 R,FIXED1WJ-0.22 N113135622820S
R521FR 00D 963 9006 269 R,FIXED1WJ-0.22 N113135622820S
R522FL 00D 963 9006 269 R,FIXED1WJ-0.22 N113135622820S
R522FR 00D 963 9006 2