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e Ver. 3
Please refer to the
MODIFICATION NOTICE.
SERVICE MANUAL
MODEL JP E3 E3B E2 EK EA E1 E1C
AVR-1311
AVR-391
AV SURROUND RECEIVER
MODEL JP E3 E3B E2 EK EA E1 E1C
DHT-1311XP
DHT-391XP s
5.1CH HOME THEATER SYSTEM
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.
e
D&M Holdings Inc.
S0141-0V03DM/DG1010 Copyright 2010 D&M Holdings Inc. All rights reserved.
WARNING: Violators will be prosecuted to the maximum extent possible.
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.
Be sure to test for leakage current with the AC plug in both polarities, in addition, in each power ON, OFF and STANDBY
mode, if applicable.
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 Check that all screws, parts and wires removed or
as the cabinet, parts, chassis,etc., have cautions indicated disconnected for servicing have been put back in their
on labels. be sure to heed these causions and the original positions, inspect that no parts around the area
cautions indicated in the handling instructions. that has been serviced have been negatively affected,
Caution concerning electric shock! conduct an inslation check on the external metal
connectors and between the blades of the power plug,
(1) An AC voltage is impressed on this set, so touching
and otherwise check that safety is ensured.
internal metal parts when the set is energized could
cause electric shock. Take care to avoid electric (Insulation check procedure)
shock, by for example using an isolating transformer Unplug the power cord from the power outlet, disconnect
and gloves when servicing while the set is energized, the antenna, plugs, etc., and turn the power switch on.
unplugging the power cord when replacing parts, etc. Using a 500V insulation resistance tester, check that the
(2) Tere are high voltage parts inside. Handle with extra inplug and the externally exposed metal parts (antenna
care when the set is energized. terminal, headphones terminal, input terminal, etc.) is
1M or greater. If it is less, the set must be inspected and
Caution concerning disassembly and repaired.
assembly!
Through great care is taken when manufacturing parts
from sheet metal, there may in some rare cases be burrs CAUTION Concerning important safety
on the edges of parts which could cause injury if fingers parts
are moved across them. Use gloves to protect your hands. Many of the electric and structural parts used in the set
Only use designated parts! have special safety properties. In most cases these
The set's parts have specific safety properties (fire properties are difficult to distinguish by sight, and using
resistance, voltage resistance, etc.). For replacement replacement parts with higher ratings (rated power and
parts, be sure to use parts which have the same withstand voltage) does not necessarily guarantee that
poroperties. In particular, for the important safety parts safety performance will be poreserved. Parts with safety
that are marked z on wiring diagrams and parts lists, be properties are indicated as shown below on the wiring
sure to use the designated parts. diagrams and parts lists is this service manual. Be sure to
replace them with parts with the designated part number.
Be sure to mount parts and arrange the wires
as they were originally! (1) Schematic diagrams ......Indicated by the z mark.
For safety seasons, some parts use tape, tubes or other (2) Parts lists ......Indicated by the z mark.
insulating materials, and some parts are mounted away Using parts other than the designated
from the surface of printed circuit boards. Care is also parts could result in electric shock, fires
taken with the positions of the wores omsode amd clamps or other dangerous situations.
are used to keep wires away from heating and high
voltage parts, so be sure to set everything back as it was
originally.
2
NOTE FOR SCHEMATIC DIAGRAM
WARNING:
Parts marked with this symbol z 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.
NOTE FOR PARTS LIST
1. Parts for which "nsp" is indicated on this table cannot be supplied.
2. When ordering of part, clearly indicate "1" and "I" (i) to avoid mis-supplying.
3. Ordering part without stating its part number can not be supplied.
4. Part indicated with the mark " " is not illustrated in the exploded view.
5. Not including General-purpose Carbon Film Resistor in the P.W.Board parts list. (Refer to the Schematic Diagram for those parts.)
6. 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 z have critical characteristics. Use ONLY replacement parts recommended by the manufacturer.
Resistors
Ex.: RN 14K 2E 182 G FR
Type Shape Power Resist- Allowable Others
and per- ance error
formance
RD : Carbon 2B : 1/8 W F : 1% P : Pulse-resistant type
RC : Composition 2E : 1/4 W G : 2% NL : Low noise type
RS : Metal oxide film 2H : 1/2 W J : 5% NB : Non-burning type
RW: winding 3A : 1 W K : 10% FR : Fuse-resistor
RN : Metal film 3D : 2 W M : 20% F : Lead wire forming
RK : Metal mixture 3F : 3 W
3H : 5 W
Resistance
1 8 2 1800ohm=1.8kohm
Indicates number of zeros after effective number.
2-digit effective number.
1 R 2 1.2ohm
1-digit effective number.
2-digit effective number, decimal point indicated by R.
: Units: ohm
Capacitors
Ex.: CE 04W 1H 3R2 M BP
Type Shape Dielectric Capacity Allowable Others
and per- strength error
formance
CE : Aluminum foil 0J : 6.3 V F : 1% HS : High stability type
electrolytic 1A : 10 V G : 2% BP : Non-polar type
CA : Aluminium solid 1C : 16 V J : 5% HR : Ripple-resistant type
electrolytic 1E : 25 V K : 10% DL : For change and discharge
CS : Tantalum electrolytic 1V : 35 V M : 20% HF : For assuring high requency
CQ : Film 1H : 50 V Z : 80% U : UL part
CK : Ceramic 2A : 100 V : - 20% C : CSA part
CC : Ceramic 2B : 125 V P : +100% W : UL-CSA part
CP : Oil 2C : 160 V C : 0.25pF F : Lead wire forming
CM: Mica 2D : 200 V D : 0.5pF
CF : Metallized 2E : 250 V = : Others
CH : Metallized 2H : 500 V
2J : 630 V
Capacity (electrolyte only)
2 2 2 2200 F 2 R 2 2.2 F
Indicates number of zeros after effective number. 1-digit effective number.
2-digit effective number. 2-digit effective number, decimal point indicated by R
Units: F. Units: F.
Capacity (except electrolyte)
2 2 2 2200pF=0.0022 F 2 2 1 220pF
Indicates number of zeros after efective number. (More than 2) Indicates number of zeros after effective numver. (0 or 1)
2-digit effective number. 2-digit effective number.
Units:pF Units:pF
When the dielectric strength is indicated in AC,"AC" is included after the dieelectric strength value.
3
SYSTEM CONFIGURATION