GE Appliances DVM1950 How to use

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GE Appliances
General Electric Company
Louisville, Kentucky 40225
31-9222
GE Spacemaker®
Over-the-Range
Microwave Oven
Technical Service Guide
DECEMBER 2011
GE Appliances
DVM1950
JNM1951
JVM1950
PNM1971
PVM1970
PVM2170

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IMPORTANT SAFETY NOTICE
The information in this service guide is intended for use by individuals possessing
adequate backgrounds of electrical, electronic, and mechanical experience. Any attempt
to repair a major appliance may result in personal injury and property damage. The
manufacturer or seller cannot be responsible for the interpretation of this information,
nor can it assume any liability in connection with its use.
WARNING
To avoid personal injury, disconnect power before servicing this product. If electrical
power is required for diagnosis or test purposes, disconnect the power immediately after
performing the necessary checks.
RECONNECT ALL GROUNDING DEVICES
If grounding wires, screws, straps, clips, nuts, or washers used to complete a path to
ground are removed for service, they must be returned to their original position and
properly fastened.
GE Appliances
Technical Service Guide
Copyright © 2011
All rights reserved. This service guide may not be reproduced in whole or in part
in any form without written permission from the General Electric Company.
PRECAUTIONS TO BE OBSERVED BEFORE AND DURING SERVICING TO AVOID POSSIBLE EXPOSURE
TO EXCESSIVE MICROWAVE ENERGY.
A. DO NOT OPERATE OR ALLOW THE OVEN TO BE OPERATED WITH THE DOOR OPEN.
B. IF THE OVEN OPERATES WITH THE DOOR OPEN, INSTRUCT THE USER NOT TO OPERATE THE OVEN
AND CONTACT THE MANUFACTURER IMMEDIATELY.
C. MAKE THE FOLLOWING SAFETY CHECKS ON ALL OVENS TO BE SERVICED BEFORE ACTIVATING
THE MAGNETRON OR OTHER MICROWAVE SOURCE, AND MAKE REPAIRS AS NECESSARY:
1. INTERLOCK OPERATION.
2. PROPER DOOR CLOSING.
3. SEAL AND SEALING SURFACES (ARCING, WEAR AND OTHER DAMAGE).
4. DAMAGE TO OR LOOSENING OF HINGES AND LATCHES.
5. EVIDENCE OF DROPPING OR ABUSE.
D. BEFORE TURNING ON MICROWAVE POWER FOR ANY TEST OR INSPECTION WITHIN THE
MICROWAVE GENERATING COMPARTMENTS, CHECK THE MAGNETRON, WAVE GUIDE OR
TRANSMISSION LINE AND CAVITY FOR PROPER ALIGNMENT, INTEGRITY AND CONNECTIONS.
E. ANY DEFECTIVE OR MISADJUSTED COMPONENTS IN THE INTERLOCK MONITOR, DOOR SEAL AND
MICROWAVE GENERATION AND TRANSMISSION SYSTEMS SHALL BE REPAIRED, REPLACED OR
ADJUSTED BY PROCEDURE DESCRIBED IN THIS MANUAL BEFORE THE OVEN IS RELEASED TO THE
OWNER.
F. A MICROWAVE LEAKAGE CHECK TO VERIFY COMPLIANCE WITH THE FEDERAL PERFORMANCE
STANDARD SHOULD BE PERFORMED ON EACH OVEN PRIOR TO RELEASE TO THE OWNER.

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Table of Contents
(Continued next page)
Bottom Thermal Cut Out (TCO) ...................................................................................................................................29
Capacitor and Diode .......................................................................................................................................................34
Cavity Thermal Cut Out (TCO)......................................................................................................................................32
Circuit Board Connectors View...................................................................................................................................18
Component Locator Views...........................................................................................................................................16
Components........................................................................................................................................................................19
Control Features..................................................................................................................................................................8
Control Panel Assembly.................................................................................................................................................26
Control Performance Test (JVM1950, DVM1950, JNM1951, PVM1970, PNM1971)............................39
Cooling Fan Motor............................................................................................................................................................33
Demo Mode.........................................................................................................................................................................36
Display Board.....................................................................................................................................................................29
Door Assembly...................................................................................................................................................................21
Door Interlocks (Door Latch Switches)....................................................................................................................40
Door Interlock Switches.................................................................................................................................................27
Error Messages ..................................................................................................................................................................38
Grille Assembly ..................................................................................................................................................................19
High Voltage Fuse.............................................................................................................................................................25
High Voltage Half–Wave Doubler .............................................................................................................................47
High Voltage Transformer............................................................................................................................................35
Interior Light........................................................................................................................................................................22
Introduction............................................................................................................................................................................7
Key Panel Test (JVM1950, DVM1950, PVM1970)................................................................................................42
Line Fuse...............................................................................................................................................................................25
Magnetron............................................................................................................................................................................31
Magnetron Thermal Cut Out (TCO)............................................................................................................................31
Microwave Leakage Test...............................................................................................................................................38
Microwave Oven Removal............................................................................................................................................19

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Noise Filter ...........................................................................................................................................................................25
Nomenclature .......................................................................................................................................................................6
Outer Cover .........................................................................................................................................................................20
Oven Performance Test.................................................................................................................................................38
Power Saver (Energy Saver).........................................................................................................................................23
Schematics and Wiring Diagrams............................................................................................................................43
Sensor ....................................................................................................................................................................................41
Smart Board........................................................................................................................................................................28
Stirrer Assembly ................................................................................................................................................................24
Surface Lamps...................................................................................................................................................................30
Technical Data Sheet (JVM1950, DVM1950, JNM1951, PVM1970, PNM1971) .....................................39
Troubleshooting ................................................................................................................................................................37
Turntable Coupling...........................................................................................................................................................30
Turntable Motor.................................................................................................................................................................30
Vent Blower .........................................................................................................................................................................25
Vent Fan Motor Capacitor.............................................................................................................................................31
Vent Thermal Cut Out (TCO)..........................................................................................................................................32
Warranty ..............................................................................................................................................................................48

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Feature Pack
Designates Features – the higher
the number, the more features
P V M 2 1 7 0 D P 1 B B
Installation
M = Mounts Under
Cabinet/Built-In
Capability
Product Color
BB = Black
WW = White
SS = Stainless Steel
Model Year Designator
Model Number
The nomenclature plate is located inside the
microwave on the left side.
The mini-manual is located on the backside
of the control panel assembly. It is secured
by 2 metal tabs, just above the smart board.
Nomenclature
Microwave Oven
V = Externally Vented
Over the Range
Product
P = GE Cooking Product
Cavity Size (cu. ft.)
19 = 1.9 cu. ft
21 = 2.1 cu. ft.
Model/Door Color
D = Color Matched
Engineering Model Suffix
Nomenclature
Serial Number
The first two characters of the serial number
identify the month and year of manufacture.
Example: ZV123456S = December 2011
Z- DEC
A - JAN
D - FEB
F - MAR
G - APR
H - MAY
L - JUN
M - JUL
R - AUG
S - SEP
T - OCT
V - NOV
2011 - V
2009 - S
2008 - R
2007 - M
2006 - L
2005 - H
2004 - G
2003 - F
2002 - D
2001 - A
2000 - Z
2010 - T
The letter designating
the year repeats every
12 years.
Example:
V - 2011
V - 1999
V - 1987

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Introduction
PVM2170 (2.1 cu. ft. capacity)
Circuwave™ 1000 cooking system – Provides more power for fast and more even cooking results.
Sensor cooking controls – Automatically adjusts time and power for delicious cooking results.
Easy-clean interior – Makes it easy to wipe up spills, splatters, and dried-on foods.
Power saver – Reduces standby power while the unit is not in use.
USDA MyPlate.gov menu – Preprogrammed foods and recipes assist in preparation of healthy meal choices.
Steam cook button – Perfectly prepares your steamed favorites for maximum nutrition retention.
Two-piece design with hidden vent – Creates a streamlined look for a smooth finish.
Four-speed, 400-CFM venting system – Quickly removes smoke, steam, and odors from the cooktop for
fresher, cleaner kitchen air.
Recessed turntable with on/off button – Offers the flexibility to use different sizes of dishes.
Features and Benefits
JVM1950, JNM1951, DVM1950, PVM1970, PNM1971 (1.9 cu. ft. capacity)

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Control Features
(Continued next page)
PVM2170 Features
Throughout this manual, features and appearance may vary from your model.

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(Continued next page)
PVM2170 Controls
TIMER
on/off
SETTINGS ADD
30 SEC
START
PAUSE
CANCEL
OFF
DEFROST
BACK COOKING
MENU
T
U
R
N
T
O
S
E
L
E
C
T
P
R
E
S
S
T
O
E
N
T
E
R
STEAM
FAMILY
SNACKS
Cooking Controls
Time Features
Press Enter
COOKING MENU Food type, Cook Type, etc.
DEFROST Time, Weight, Food Type or 1lb Quick Defrost
SETTINGS
TIMER
ADD 30 SEC Starts immediately!
Convenience Features
Press Enter
STEAM
Enter pad to select Food
My Pyramid Enter pad to select Food
FAMILY SNACKS Enter pad to select Food
Check the Convenience Guide before you begin.
MyPlate.gov
Press Enter
COOKING MENU Food Type, Cook Type, etc.
DEFROST Time, Weight, Food Type or 1 lb Quick Defrost
SETTINGS Help, Clock Settings, Turntable On/Off, Auto Night
Light, Beeper Volume, Reminder
TIMER Kitchen Timer Settings
ADD 30 Sec Starts Immediately!
Press Enter
STEAM Enter pad to select Food
MyPlate.gov Enter pad to select Food
FAMILY SNACKS Enter pad to select Food

– 10 – (Continued next page)
DVM1950, JVM1950, JNM1951
Cook Defrost
Settings Timer
Popcorn
Reheat
Snacks
Soften
Steam
Family
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– 11 –
DVM1950, JVM1950, JNM1951 Controls
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Settings Timer
Popcorn
Reheat
Snacks
Soften
Steam
Family
Cancel
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Press Enter
POPCORN Starts immediately!
REHEAT Starts immediately!
FAMILY SNACKS Enter pad to select Food
SOFTEN Enter pad to select Food
MELT Enter pad to select Food
MyPlate.gov Enter pad to select Food
Press Enter
COOK Amount of cooking time
DEFROST Time, Weight or 1 lb Quick Defrost
SETTINGS Help, Clock Settings, Turntable On/Off, Auto Night Light, Beeper
Volume, Display Speed, Display Language
Timer Kitchen Timer Settings
POWER LEVEL Power level 1 to 10
ADD 30 SEC Starts immediately!
EXPRESS COOK Starts immediately!
Press number pads (1-6)

– 12 – (Continued next page)
PVM1970, PNM1971
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54 6
87 9
0
A DD
30 S EC
P OWER
L EVEL
Express Cook
S TART
P AUSE
C ANCEL
O FF
S ETTINGS
T IMER
on/off
T IME
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D EFROST
S TEAM
P OPCORN B EVERAGE
F AMILY
S NACKS
P OTATO
M ELT
R EHEAT
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PVM1970, PNM1971 Controls
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POWER
LEVEL
p
START
PAUSE
CANCEL
OFF
SETTINGS
TIMER
on/off
TIME
COOK DEFROST
STEAM
POPCORN BEVERAGE
FAMILY
SNACKS POTATO
MELT REHEAT
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COOK Amount of cooking time
DEFROST Time, Weight or 1 lb Quick Defrost
SETTINGS Help, Clock Settings, Turntable On/Off, Auto Night
Light, Beeper Volume, Display Speed, Display
Language
Timer Kitchen Timer Settings
POWER LEVEL Power level 1 to 10
ADD 30 SEC Starts immediately!
EXPRESS COOK Starts immediately!
Press number pads (1-6)
Press Enter
POPCORN Starts immediately!
BEVERAGE Starts immediately! Starts immediately!
POTATO Starts immediately!
REHEAT Starts immediately!
FAMILY SNACKS Enter pad to select Food
MELT Enter pad to select Food
STEAM Enter pad to select Food
MyPlate.gov Enter pad to select Food Enter pad to select Food
Convenience Features
(Continued next page)

– 14 –
MyPlate.gov Feature
PVM1970, PNM1971
DVM1950, JNM1951,
JVM1950
Cook Defrost
Settings Timer
Popcorn
Reheat
Snacks
Soften
Steam
Family
Cancel
The Myplate.gov feature allows you to microwave healthy food choices by servings with Sensor Cooking.
1. Press MyPlate.gov pad.
2. Enter the food group (See Cooking Guide for MyPlate.gov.) code or check the display for the food group.
3. Enter the type (See Cooking Guide for MyPlate.gov.) code or check the display for food types.
4. Enter the amount as prompted for food type selection.
5. Press Start.
(Continued next page)
DVM1950, JNM1951, JVM1950, PVM1970, PNM1971
PVM2170
1. Press MyPlate.gov pad.
2. Turn the dial to display the food group you want (See Cooking Guide for MyPlate.gov.) press the dial
to select.
3. Turn the dial again to display the specific food you want, then enter the amount, if prompted.
4. Press dial to select.
5. Press the dial or the Start/Pause button to begin cooking.
PVM2170
21 3
54 6
87 9
0ADD
30 SEC
POWER
LEVEL
p
START
PAUSE
CANCEL
OFF
SETTINGS
TIMER
on/off
TIME
COOK DEFROST
STEAM
POPCORN BEVERAGE
FAMILY
SNACKS POTATO
MELT REHEAT
TIMER
on/off
SETTINGS ADD
30 SEC
START
PAUSE
CANCEL
OFF
DEFROST
BACK COOKING
MENU
T
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T
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R
STEAM
FAMILY
SNACKS

– 15 –
Food Group Food Type Servings/Details
1 – Grain 1 – Rice 1– 1/2 cup, 2– 1 cup, 3– 1½ cups
2– Oatmeal 1 to 4 packets
3– Popcorn 1– 1 oz, 2– 3.0 ozs, 3– 3.5 ozs
4– Macaroni 1– 1/2 cup, 2– 1 cup, 3– 1½ cups
5– Quinoa 1– 1/2 cup, 2– 1 cup, 3– 1½ cups
2– Vegetables 1– Asparagus 1– Fresh, 2– Frozen, 3– Canned
2– Broccoli 1– Fresh, 2– Frozen
3– Green Beans 1– Fresh, 2– Frozen, 3– Canned
4– Carrots 1– Fresh, 2– Frozen, 3– Canned
5– Corn 1– Fresh Cobs (1 to 4), 2– Frozen Kernels
6– Peas 1– Frozen, 2– Canned
7– Potatoes 1– Baking, 2– Sweet
8– Spinach 1– Fresh, 2– Frozen, 3– Canned
3– Ground Meat
4– Poultry 1– Bone-In Chicken
2– Boneless Chicken
5– Seafood 1– Whitefish
2– Tilapia
3– Salmon
Cooking Guide for MyPlate.gov
Note: Bold code numbers do not apply to Model PVM2170. The Turn To Select dial is used to select
appropriate food group.
Note for Sensor Cooking: For best results, do not open the door while cooking. Do not use the sensor
feature twice in succession on the same food portion. If food is undercooked after the first countdown, use
Time Cook for additional time. Use Power Level 10, unless otherwise noted.

– 16 –
Front View – Control Panel Assembly Removed
Component Locator Views
(Continued next page)
Cooling Fan
Turntable Coupling
Control Panel Assembly
Front View
Vent Grille
Bottom TCO

– 17 –
Right Side View
Fuses
Magnetron TCO
Diode
Magnetron
Cooling Fan Motor
Cooling Fan
High Voltage Transformer
Bottom TCO
View From Right Side
High Voltage Capacitor
View From Top Right Side
Vent Motor Capacitor
Fuses
High Voltage Capacitor

– 18 –
PVM2170 Smart Board
PVM2170 Display Board
Circuit Board Connectors View
To Door Sense Switch and Vent TCO
To Gas Sensor
To T/T Motor, Cooktop Lamp, Cooling Motor,
and Secondary Interlock Switch – 2
To Touch Pad Ribbon Connector
To Smart Board
To Vent Motor
To Zero Standby Switch and
Secondary Interlock Switch – 1
Power-L RelayPower-H Relay
To Display PCB
To Vent/Cooktop Lamp Tact Switch
and Encoder Switch

– 19 –
Components
Electrical terminal release/locking tab
(shown with plastic covering removed)
2. Tilt microwave oven forward, then unhook the
slots at the back, bottom edge from the lower
tabs of the mounting plate.
3. Lift and remove the microwave oven.
WARNING: When removing the microwave oven,
be sure to provide adequate support to prevent
dropping the unit.
Microwave Oven Removal
Caution: Two people are recommended for safe
removal of the microwave oven.
1. While supporting the microwave oven, remove
the 2 screws that attach the microwave oven to
the cabinet.
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Grille Assembly
To remove the grille assembly:
1. Open the microwave oven door.
2. Remove the 2 Phillips-head screws from the top
front of the oven cabinet.
3. Slide grille assembly to the left and pull out. The
bottom of grille is held in place with 2 tabs.
Note: The tabs must be inserted when replacing the
grille.
Note: In the following section, certain electrical
terminals that attach to the microwave oven
components utilize a locking tab. Some tabs cannot
be seen because they are encased in plastic. When
removing these terminals, grasp the top and bottom
of the terminal with needle-nose pliers. Gently
squeeze the jaws of the pliers together while pulling
the electrical terminal from the element.

– 20 –
7. Slide the outer cover back about 1 inch toward
the rear of the oven. Lift the cover from the
oven.
6. Remove 2 Phillips-head screws from the left side
of the oven.
5. Remove 4 Phillips-head screws from the right
side of the oven.
4. Remove 6 Phillips-head screws from the bottom
cover of the oven.
3. Remove 7 Phillips-head screws from the back of
the oven.
Outer Cover
To gain access to many of the microwave oven
components, it is necessary to remove the outer
cover.
WARNING: To prevent electrical shock, use extreme
caution when diagnosing oven with outer cover
removed and power ON. The high voltage section
of the power supply, including filament leads, has
the potential with respect to ground to reach 4000
Volts!
To remove the outer cover:
1. Remove the oven. (See Microwave Oven
Removal.)
2. Remove 4 Phillips-head screws from the top of
the oven.